EP0161515A1 - Gripping strips made of a substrate coated with a synthetic material - Google Patents

Gripping strips made of a substrate coated with a synthetic material Download PDF

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Publication number
EP0161515A1
EP0161515A1 EP85104611A EP85104611A EP0161515A1 EP 0161515 A1 EP0161515 A1 EP 0161515A1 EP 85104611 A EP85104611 A EP 85104611A EP 85104611 A EP85104611 A EP 85104611A EP 0161515 A1 EP0161515 A1 EP 0161515A1
Authority
EP
European Patent Office
Prior art keywords
grip
extensibility
carrier material
grip tapes
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85104611A
Other languages
German (de)
French (fr)
Other versions
EP0161515B1 (en
Inventor
Günther Krüpper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industrie-Entwicklungen Kruepper GmbH
Industrie-Entwicklungen Krupper
Original Assignee
Industrie-Entwicklungen Kruepper GmbH
Industrie-Entwicklungen Krupper
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Industrie-Entwicklungen Kruepper GmbH, Industrie-Entwicklungen Krupper filed Critical Industrie-Entwicklungen Kruepper GmbH
Priority to AT85104611T priority Critical patent/ATE39140T1/en
Publication of EP0161515A1 publication Critical patent/EP0161515A1/en
Application granted granted Critical
Publication of EP0161515B1 publication Critical patent/EP0161515B1/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • A63B60/14Coverings specially adapted for handles, e.g. sleeves or ribbons
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00Stringed rackets, e.g. for tennis
    • A63B49/02Frames
    • A63B49/08Frames with special construction of the handle
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • A63B60/08Handles characterised by the material
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/54Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0025Rubber threads; Elastomeric fibres; Stretchable, bulked or crimped fibres; Retractable, crimpable fibres; Shrinking or stretching of fibres during manufacture; Obliquely threaded fabrics
    • D06N3/0031Retractable fibres; Shrinking of fibres during manufacture
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • A63B60/18Handles with means for cooling, ventilating or sweat-reduction, e.g. holes or powder dispensers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/904Artificial leather
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24438Artificial wood or leather grain surface
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777Edge feature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777Edge feature
    • Y10T428/24785Edge feature including layer embodying mechanically interengaged strands, strand portions or strand-like strips [e.g., weave, knit, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/26Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/266Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate

Definitions

  • Grip tapes are used to improve the handling of devices such as sports equipment or vehicle drivers.
  • Grips for sports equipment rackets e.g. Tennis, table tennis, squash or golf clubs.
  • the handle of such rackets is wrapped with such a grip tape, thereby increasing the grip of the device.
  • handles of sports equipment or steering wheels it is necessary to provide a good grip and to ensure slip resistance.
  • Grips made of leather or textile material are already known.
  • grip tapes made of plastic-coated backing materials are also used for sports rackets. In order to achieve grip, such grip tapes usually had to be roughened into a suede-like structure by an additional operation. Such grip tapes impart a certain slip resistance, but do not yet show optimal grip behavior.
  • the object of the invention are grip tapes based on plastic-coated carrier materials which, because of their stickiness or slip resistance, impart a good grip to the device without a substantial change in grip strength and at the same time are highly moisture-absorbent and shock-absorbing.
  • grip tapes on the basis of carrier materials coated with plastic, which are characterized by a carrier material consisting of nonwoven, woven fabric or knitted fabric which, before being processed, has an extensibility in the transverse and / or longitudinal direction and / or diagonal direction in each case has at least 10%, and an impregnation applied by NaBcoagulation on the basis of polyurethanes.
  • the carrier material of the grip tapes consists of a spunbonded fabric, in particular a needled spunbonded fabric, which has an extensibility in the longitudinal and / or transverse direction of at least 30%, in particular an extensibility in the transverse direction of at least 50% before being processed.
  • the carrier material consists of cotton gauze which, before being processed as a grip tape, has an extensibility in the transverse or longitudinal direction of at least 20%.
  • the thickness of the nonwoven as the carrier material is preferably 0.2 to 1.0 mm, in particular 0.3 to 0.35 mm, and the thickness of the fabric as the carrier material is 0.2 to 1.0 mm, in particular 0.7 to 0.8 mm.
  • Grip tapes based on fleece preferably have a thickness of 0.35 to 1.2 mm, in particular 0.45 to 0.5 mm, and those based on fabric preferably have a thickness of 0.3 to 1.2 mm , in particular 0.8 to 0.9 mm.
  • the impregnation or coating based on polyurethanes advantageously contains up to 30% by weight of other thermoplastics in addition to polyurethanes cal polymers, especially polyvinyl chloride.
  • Another object of the invention is a method for producing grip tapes based on plastic-coated carrier materials, which is characterized in that a carrier material consisting of nonwoven, woven or knitted fabric with an extensibility in the transverse and / or longitudinal direction and / or diagonal direction of at least 10% is impregnated with a solution of impregnating agent based on polyurethanes, dissolved in a water-soluble solvent, the impregnated material is passed through at least one coagulation bath composed of a mixture of the solvent and water, the liquid is pressed off the carrier material coated with coagulate is then rinsed with water, pressed again and dried and optionally cut into strips.
  • Dimethylformamide is preferably used in the manufacture of the grip tapes as a solvent for the impregnating agent based on polyurethanes.
  • the backing material soaked with polyurethane solution is first passed through a first aqueous coagulation bath with a higher solvent content of, for example, 15 to 35% by weight and then through a second aqueous coagulation bath with a lower solvent content of, for example, 5 to 20% by weight. -% guided.
  • the substrate material is expediently subjected to a pretreatment with alkalizing agents or with chlorinated hydrocarbons before impregnation with polyurethane solution.
  • This achieves fine fibrousness by repeatedly - for example from DTEX 1.7 - preferably six times - is split. Due to the fine fibers, the inclusion of air bubbles in the end product is increased and excellent absorbency is achieved.
  • the grip tapes according to the invention contain a nonwoven, woven or knitted fabric, the stretchability of which before processing in the transverse and / or longitudinal direction and / or diagonal direction is at least 10%.
  • the extensibility of the carrier material in the transverse direction and / or longitudinal direction and / or diagonal direction is preferably between 20 and 50% in each case. Depending on the intended use of the grip tape, it can amount to 50 to 70% or even 100% and more.
  • the elasticity of the backing material is particularly important for the excellent properties of the grip tapes.
  • fabrics are used as the backing material, they mainly consist of cotton, blended fabrics or plastic fabrics. Gauze, especially cotton gauze, proved to be particularly favorable. A cotton gauze which is similar to that used for wound treatment, but has a stretchability in the transverse or longitudinal direction of at least 20%, especially at least 50%, is preferred.
  • Knitted fabrics can also be used successfully as carrier materials for the grip tapes according to the invention, provided that their extensibility in the longitudinal and / or transverse direction and / or diagonal direction is at least 10%, preferably 30% and more. Textile knitted fabrics based on threads made of plastic, natural or mixed fibers are suitable.
  • fleece is used as the backing material, a wide variety of plastic, natural and / or mixed fibers can be used. Nonwovens based on polyester, polyacrylic and / or polyethylene fibers or mixed fibers made of plastic and cotton proved to be favorable. Any fleece can be used, provided that it has the appropriate extensibility in the transverse and / or longitudinal direction of at least 10%. Spunbonded and preferably needled spunbonded nonwovens are advantageously used as the carrier material.
  • the nonwovens are generally very fine-fiber and preferably contain fibers in the denier range of DTEX 1.7.
  • the fiber lengths are not particularly restricted, but are generally between 20 and 70 mm, preferably between 30 and 50 mm.
  • the thickness of the backing material can be kept very small, which has the advantage that the final tapes are also thin and thus the grip strength is only slightly increased by applying the grip tape. Due to the great elasticity of the grip tapes, the increase in grip strength can be kept extremely small when the tape is wound onto the handle. The change in grip strength decreases with increasing elasticity of the band.
  • the carrier material consisting of fleece, woven fabric or knitted fabric with an extensibility in the transverse direction and / or longitudinal direction and / or diagonal direction of at least 10% is coated with an impregnation on the basis of polyurethanes.
  • the known polyurethane elastomers which can optionally be modified by incorporating plasticizing additives, can be used as polyurethanes.
  • the polyurethanes can contain further thermoplastic polymers, such as, for example, polyvinyl acetate, polyacrylic esters or preferably polyvinyl halides,
  • polyvinyl chloride contained in amounts of up to 30% by weight.
  • polyurethane used here is intended to encompass any optionally modified polyurethanes, optionally including smaller amounts of other thermoplastic polymers.
  • the carrier material is impregnated with a solution based on polyurethanes, dissolved in a water-soluble solvent.
  • the carrier web is expediently passed through a polyurethane solvent bath.
  • a large number of water-soluble solvents such as, for example, ketones such as acetone or esters such as, for example, ethyl acetate and dimethylacetamide or dimethyl sulfoxide, are suitable as solvents for the polyurethane to be applied.
  • dimethylformamide is preferably used as the solvent for polyurethane. Mixtures of such solvents can also be used.
  • the carrier web can also be passed through the polyurethane solvent bath several times. A repeated, e.g. Soaking the support material in the polyurethane solution two or three times with a residence time per bath of about 2 to 10 seconds increases the penetration of the support material, so that it is thoroughly soaked.
  • the polyurethane impregnation bath can contain conventional chemical additives, such as plasticizers, dyes, color pastes, lubricants, stabilizers, etc.
  • the addition of polyglycols is used primarily for plasticization and increases the incorporation of air bubbles.
  • the carrier material can also be subjected to a pretreatment before it is impregnated with the polyurethane solution in order to split the fibers of the carrier material.
  • the alkalization treatment is advantageously carried out at elevated temperatures, preferably at about 60 to 90 ° C., in particular 80 to 90 ° C.
  • Pretreatment with chlorinated hydrocarbons is expediently carried out at their boiling point and for a short period, for example of 1 minute.
  • the two types of pretreatment lead to multiple splitting of the fiber, the fibers often being split six or more times.
  • the pretreatment of the carrier material is not absolutely necessary, but increases the air bubble absorption when the polyurethane is applied and its coagulation.
  • the impregnated material can be passed directly through at least one coagulation bath from a mixture of the water-soluble solvent used to dissolve the polyurethane with water. It is not necessary to press or dry the carrier material soaked with polyurethane solution beforehand. Appropriately, the substrate material soaked one or more times is scraped to the desired thickness after leaving the impregnation bath, while the underside of the material runs over a steel roller, so that the top and bottom of the grip tape material are equally smooth.
  • the tape thus has the advantage that it can be used on both sides.
  • aqueous coagulation bath is advantageously kept at a slightly elevated temperature, for example at about 20 to 300. If several coagulation baths are used, the temperature of the first aqueous bath is usually somewhat higher, for example 25 to 30 ° C., while the second aqueous bath has temperatures of approximately 20 to 25 ° C.
  • the number of coagulation baths can be increased, the water content of the coagulation bath always increasing compared to the solvent content from the first to the last bath.
  • two or more coagulation baths in addition to coagulating the polyurethane, extensive rinsing out of the water-soluble solvent is achieved with the simultaneous formation of a large amount of air bubbles within the structure.
  • the liquid is pressed off from the coated carrier material. This is advantageously done by passing the material through rollers.
  • the coated material is rinsed with water, pressed again and dried. Washing is usually carried out with normal cold water, if necessary with the addition of a plasticizer.
  • the material web is expediently guided and tensioned over a drum and water is pressed into and out of the material at certain time intervals. After the last pressing, the material is dried.
  • the extorted coated sheet material is passed through a heated to temperatures of 100 to 160 ° C, in particular 120 drying oven held to 150 0 C, the remaining Feuch action to remove.
  • the carrier material coated with coagulate is subject to a shrinkage during the manufacturing process, ie during impregnation, coagulation and rinsing, which is usually 10 to 15% and can be up to 30%, so that the web material is generally tensioned again during drying.
  • the tension causes the width to expand by about 15 to 25%, preferably 20%.
  • coated material obtained after the drying process can then be calendered on, with oil paper being advantageously rolled in between so that the webs do not stick to one another.
  • the coated web materials obtained are then cut to the desired size into strips or strips, for example 20 to 30 mm wide, and can then be made up for delivery to the consumer, e.g. wound on a cardboard core and blistered.
  • the coated web materials can be cut in the transverse, longitudinal or diagonal direction depending on the desired stretchability of the tape. Specifically, the coated web materials are cut in the transverse direction, so that the high elasticity of the starting carrier material in the transverse direction now corresponds to the elasticity of the grip tape in the longitudinal direction.
  • coated fabric material is cut at an angle to the warp or weft direction of the fabric. This gives very stretchable bias binding that adapts particularly well to the curves without wrinkles when applied to handles or grip pads.
  • the cutting process is expediently carried out with the aid of punching knives, especially using anti-stick agents, such as Talc.
  • the grip tapes according to the invention are particularly favorable to chamfer the grip tapes according to the invention, in particular those which are intended for the helical wrapping of handles, on the longitudinal edges.
  • the beveling can take place on both longitudinal edges of one surface or on both longitudinal edges of opposite surfaces, so that the respective oblique cut surfaces run either at an angle to one another or parallel.
  • the coated material according to the invention proves to be completely cut-resistant at the cut surfaces without the carrier material fraying.
  • the bevel cutting process can be carried out without the use of the usual edge glue.
  • the bevelling of the longitudinal edges of the grip tape enables an overlapping helical winding without influencing the grip thickness or bulging in the overlap areas.
  • the grip tapes of the invention are useful for a variety of purposes. They serve to encase device handles that have to fit particularly well in the hand and, thanks to their special design, provide a non-slip, non-slip, vibration-damping surface that is easy to handle.
  • the grip tapes are particularly suitable for handles of sports equipment, for example for tennis, table tennis, squash, hockey and golf clubs, for the boom of the surf sail and for bicycle handlebars or steering wheels. Another purpose of the grip tapes is in shooting sports to cover the grip areas on the hand protection and grip recess of rifles.
  • a suitable piece of grip tape which is provided on the back with self-adhesive pressure adhesive and protective paper, is applied to the grip surfaces after removing the protective film, so that the rifle can be held exactly without slipping off the hand.
  • golf club grips are encased by gluing a trapezoidal piece of grip tape onto the grip.
  • the grip tape is wound helically over the handle.
  • sports rackets such as tennis or squash rackets
  • a first or basic grip tape which corresponds to the leather strap used previously and is often already attached during production. Larger thicknesses are usually preferred for this basic grip tape.
  • the grip tapes of reduced thickness are particularly suitable for so-called overgrip tapes which are wound over the basic grip tape.
  • the overgrip tape in particular one based on fleece, which is characterized by an extremely small thickness, is wound up or renewed at more or less large intervals.
  • the extremely small thickness of these straps allows the application of grip straps on device handles without the grip strength being increased appreciably, which, for example, turns out to be extremely advantageous in the case of ball game rackets and considerably improves the playing properties.
  • the increased stickiness and absolute slip resistance, which are conveyed by the grip tapes according to the invention, are likewise properties which are particularly valued in ball game rackets.
  • the products show an extremely soft surface without the need for further operations such as grinding and repeated calendering.
  • the air bubbles incorporated in millions proved to be of essential importance for the quality of the grip tapes according to the invention, as a result of which a slight spring effect similar to a sponge effect and thus no bouncing effect in the Handle handling while playing is achieved.
  • the smooth and shock-absorbing design of the grip tapes avoids any blistering on the hands when handling handles wrapped with such grip tapes, and in this way the dreaded tennis elbow disease can be prevented.
  • the strong absorbency due to the built-in air bubbles ensures that sweat is drained away quickly, which often has a very disadvantageous effect when handling sports equipment rackets and impairs the playing properties. Due to the combination of the specified components and the special type of manufacture, the grip tapes of the invention are distinguished by increased service life and favorable heat resistance up to about 80 ° C. and even for a short time even more.
  • a carrier web made of needled polyester spunbonded fabric with a thickness of 0.3 mm, a fiber length of 30 to 50 mm, an extensibility in the transverse direction of 70% and in the longitudinal direction of 10% is used for pretreatment by a 6% alkaline bath heated to about 80C iger Na 2 C0 3 solution in water to achieve a splitting of the fibers.
  • the pretreated carrier web is passed into a polyurethane impregnation bath consisting of an 8 to 10% solution of polyurethane in dimethylformamide with the addition of 0.3 to 0.9% plasticizer and 3% color paste.
  • the carrier web remains in the polyurethane impregnation bath for about 10 seconds.
  • the coated carrier web is then transferred to the coagulation bath via rollers without pressing or drying.
  • the first coagulation bath consists of Water containing 30% dimethylformamide and is kept at a temperature of about 30 0 C.
  • the coated carrier web moves into a second aqueous coagulation bath which only contains 10% dimethylformamide.
  • the temperature of the second coagulation bath is between 20 and 24 ° C.
  • the liquid contained in and on the web is squeezed out by rolling, after which the treated web is washed out with cold water, then passed over a drum and tensioned, and water is pressed into the material and squeezed out again. The process is repeated twice. The solvent is then completely washed out of the coated material.
  • the coated nonwoven web is subject to shrinkage of up to 15% during the preceding operations. During the subsequent drying in the drying oven at about 150 ° C, the web is stretched in width by about 20%. After drying, the web material is calendered with the interposition of oil paper to prevent the webs from sticking together.
  • the finished sheets are cut transversely into strips 25 mm wide and rolled up on cardboard cores. The thickness of the finished strips is 0.45 mm.
  • the grip tapes obtained were wound onto the handles of tennis rackets and table tennis rackets.
  • the racket handles wrapped in this way showed a barely changed grip thickness due to the low thickness and extraordinary elasticity of the band material.
  • the club grips were good to hold, had a good grip and gave excellent playing properties due to their shock-absorbing and absorbent properties.
  • Example 1 The measures of Example 1 are repeated with the difference that a cotton fabric with a stretchability in the transverse direction of 60% and a thickness of 0.7 mm is used as the carrier material.
  • the grip tapes obtained afterwards have a thickness of 0.9 to 1.0 mm and are used as basic wraps for tennis racket grips or as coverings for golf club grips.
  • the tapes provided for wrapping tennis racket handles are cut into strips about 25 mm wide and bevelled on one surface at the longitudinal edges. Due to the bevelling of the longitudinal edges, the tapes could be wound helically on the handles of the sports rackets without any bulge at the overlap areas.
  • the tapes provided for wrapping golf club grips are trapezoidally cut after coating with pressure adhesive and protective film to match the thickness of the club grips and glued to the handle.
  • the handles covered with the tapes show excellent slip resistance, absorbency and spring action.
  • a grip tape according to Example 2 was produced.
  • the tapes obtained were coated on one side with pressure-sensitive adhesive and provided with a protective film. Tape pieces of a suitable size were removed after removing the protective film glued to the grip of the handguard as well as in the recessed grip of rifles and, due to the excellent slip resistance, absorbency and shock absorption, enable exact handling and thus increased target safety of the rifles.
  • a spunbonded non-woven fabric made of polyacrylic-cotton mixed fiber with a fiber length of 40 mm, an extensibility in the transverse direction of up to 40% and in the longitudinal direction of 20% and a thickness of 0.35 mm was treated twice without pretreatment by a polyurethane soaking bath with a respective residence time per bath of about 5 seconds.
  • the bath contained a solution of polyurethane in dimethylformamide with the addition of lubricant and dye. After impregnation with polyurethane solution, the coagulation is carried out in a water bath containing 20% dimethylformamide at 25 ° C.
  • Example 1 After the liquid has been pressed off, the web material is washed out, dried and cut into ribbons in the manner indicated in Example 1, which are wound up by tennis rackets using the basic grip tape.
  • the grip tapes produced in this way showed excellent grip, slip resistance, absorbency and shock absorption.

Abstract

According to the invention, grip tapes based on plastic-coated supporting materials are described which have a supporting material comprising nonwoven, woven or knitted fabric having an extensibility before processing of at least 10% in the crosswise and/or lengthwise and/or diagonal direction, and an impregnation based on polyurethanes which is applied by means of wet coagulation. The grip tapes are obtained by soaking a supporting material of nonwoven, woven or knitted fabric and having an extensibility of at least 10% in the crosswise and/or lengthwise and/or diagonal direction in a solution of polyurethane-based impregnating agent, dissolved in a water-soluble solvent, passing the impregnated material through at least one coagulation bath comprising a mixture of the solvent with water, pressing the liquid out of the coagulate-coated supporting material, then rinsing the material with water and pressing it again and drying it, then cutting it as needed into strips. The grip tapes exhibit high extensibility, provide excellent gripping and non-slip qualities and high moisture absorption and shock absorbency, and are particularly well suited for sheathing the handles of sports equipment.

Description

Griffbänder dienen dazu, die Handhabung von Geräten, wie beispielsweise Sportgeräten oder Lenkern von Fahrzeugen, zu verbessern. Speziell werden Griffbänder für Sportgeräteschläger, z.B. Tennis-, Tischtennis-, Squash- oder Golfschläger, eingesetzt. Der Griff derartiger Schläger wird mit einem solchen Griffband umwickelt, um dadurch die Griffigkeit des Geräts zu erhöhen. Gerade bei Griffen von Sportgeräten oder auch Lenkrädern ist es notwendig, einen guten Griff zu vermitteln und Rutschfestigkeit zu gewährleisten.Grip tapes are used to improve the handling of devices such as sports equipment or vehicle drivers. Grips for sports equipment rackets, e.g. Tennis, table tennis, squash or golf clubs. The handle of such rackets is wrapped with such a grip tape, thereby increasing the grip of the device. Especially with handles of sports equipment or steering wheels, it is necessary to provide a good grip and to ensure slip resistance.

Es sind bereits Griffbänder aus Leder oder Textilmaterial bekannt. Darüber hinaus werden für Sportschläger auch Griffbänder verwendet, die aus kunststoffbeschichteten Trägermaterialien aufgebaut sind. Zur Erzielung von Griffigkeit mußten derartige Griffbänder meist durch einen zusätzlichen Arbeitsgang zu einer wildlederartigen Struktur aufgerauht werden. Solche Griffbänder vermitteln eine gewisse Rutschfestigkeit, zeigen jedoch noch kein optimales Griffverhalten.Grips made of leather or textile material are already known. In addition, grip tapes made of plastic-coated backing materials are also used for sports rackets. In order to achieve grip, such grip tapes usually had to be roughened into a suede-like structure by an additional operation. Such grip tapes impart a certain slip resistance, but do not yet show optimal grip behavior.

Aufgabe der Erfindung sind Griffbänder auf der Basis von mit Kunststoff beschichteten Trägermaterialien, die aufgrund ihrer Klebrigkeit oder Rutschfestigkeit einen guten Griff des Geräts ohne wesentliche Veränderung der Griffstärke vermitteln und gleichzeitig stark feuchtigkeitsaufsaugend und schockdämpfend sind.The object of the invention are grip tapes based on plastic-coated carrier materials which, because of their stickiness or slip resistance, impart a good grip to the device without a substantial change in grip strength and at the same time are highly moisture-absorbent and shock-absorbing.

Diese Aufgabe wird gemäß der Erfindung durch Griffbänder auf der Basis von mit Kunststoff beschichteten Trägermaterialien gelöst, die gekennzeichnet sind durch ein aus Vlies, Gewebe cder Gewirke bestehendes Trägermaterial, das vor seiner Verarbeitung eine Dehnfähigkeit in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung von jeweils mindestens 10 % aufweist, und eine durch NaBkoagulation aufgebrachte Imprägnierung auf der Basis von Polyurethanen.This object is achieved according to the invention by grip tapes on the basis of carrier materials coated with plastic, which are characterized by a carrier material consisting of nonwoven, woven fabric or knitted fabric which, before being processed, has an extensibility in the transverse and / or longitudinal direction and / or diagonal direction in each case has at least 10%, and an impregnation applied by NaBcoagulation on the basis of polyurethanes.

In besonders günstiger Ausführungsform besteht das Trägermaterial der Griffbänder aus einem Spinnvlies, insbesondere einem genadelten Spinnvlies, das vor seiner Verarbeitung eine Dehnfähigkeit in Längs- und/oder Querrichtung von mindestens 30 %, insbesondere eine Dehnfähigkeit in Querrichtung von mindestens 50 % aufweist.In a particularly favorable embodiment, the carrier material of the grip tapes consists of a spunbonded fabric, in particular a needled spunbonded fabric, which has an extensibility in the longitudinal and / or transverse direction of at least 30%, in particular an extensibility in the transverse direction of at least 50% before being processed.

Gemäß einer weiteren bevorzugten Ausführungsform besteht das Trägermaterial aus Baumwollgaze, die vor ihrer Verarbeitung als Griffband eine Dehnfähigkeit in Querrichtung oder in Längsrichtung von mindestens 20 % aufweist.According to a further preferred embodiment, the carrier material consists of cotton gauze which, before being processed as a grip tape, has an extensibility in the transverse or longitudinal direction of at least 20%.

Bevorzugt liegt die Dicke des Vlieses als Trägermaterial bei 0,2 bis 1,0 mm, insbesondere 0,3 bis 0,35 mm, und die Dicke des Gewebes als Trägermaterial bei 0,2 bis 1,0 mm, insbesondere 0,7 bis 0,8 mm.The thickness of the nonwoven as the carrier material is preferably 0.2 to 1.0 mm, in particular 0.3 to 0.35 mm, and the thickness of the fabric as the carrier material is 0.2 to 1.0 mm, in particular 0.7 to 0.8 mm.

Griffbänder auf der Grundlage von Vlies weisen vorzugsweise eine Dicke von 0,35 bis 1,2 mm, insbesondere 0,45 bis 0,5 mm, und solche auf der Grundlage von Gewebe weisen vorzugsweise eine Dicke von 0,3 bis 1,2 mm, insbesondere 0,8 bis 0,9 mm, auf.Grip tapes based on fleece preferably have a thickness of 0.35 to 1.2 mm, in particular 0.45 to 0.5 mm, and those based on fabric preferably have a thickness of 0.3 to 1.2 mm , in particular 0.8 to 0.9 mm.

Die Imprägnierung oder Beschichtung auf der Basis von Polyurethanen enthält in günstiger Weise neben Polyurethanen noch bis zu 30 Gew.-% weitere thermoplastische Polymere, insbesondere Polyvinylchlorid.The impregnation or coating based on polyurethanes advantageously contains up to 30% by weight of other thermoplastics in addition to polyurethanes cal polymers, especially polyvinyl chloride.

Ein weiterer Gegenstand der Erfindung besteht in einem Verfahren zur Herstellung von Griffbändern auf der Basis von mit Kunststoff beschichteten Trägermaterialien, das dadurch gekennzeichnet ist, daß ein aus Vlies, Gewebe oder Gewirke bestehendes Trägermaterial mit einer Dehnfähigkeit in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung von mindestens 10 % mit einer Lösung von Imprägniermittel auf der Basis von Polyurethanen, gelöst in einem wasserlöslichen Lösungsmittel, getränkt wird, das getränkte Material durch mindestens ein Koagulationsbad aus einem Gemisch des Lösungsmittels mit Wasser geführt wird, die Flüssigkeit von dem mit Koagulat beschichteten Trägermaterial abgepreßt wird, anschließend das Material mit Wasser gespült, erneut abgepreßt und getrocknet wird und gegebenenfalls zu Streifen geschnitten wird.Another object of the invention is a method for producing grip tapes based on plastic-coated carrier materials, which is characterized in that a carrier material consisting of nonwoven, woven or knitted fabric with an extensibility in the transverse and / or longitudinal direction and / or diagonal direction of at least 10% is impregnated with a solution of impregnating agent based on polyurethanes, dissolved in a water-soluble solvent, the impregnated material is passed through at least one coagulation bath composed of a mixture of the solvent and water, the liquid is pressed off the carrier material coated with coagulate is then rinsed with water, pressed again and dried and optionally cut into strips.

Bevorzugt wird bei der Herstellung der Griffbänder als Lösungsmittel für das Imprägniermittel auf der Basis von Polyurethanen Dimethylformamid verwendet.Dimethylformamide is preferably used in the manufacture of the grip tapes as a solvent for the impregnating agent based on polyurethanes.

In spezieller Ausführungsform wird bei der Herstellung der Griffbänder das mit Polyurethanlösung getränkte Trägermaterial zunächst durch ein erstes wäßriges Koagulationsbad mit höherem Lösungsmittelanteil von beispielsweise 15 bis 35 Gew.-% und dann durch ein zweites wäßriges Koagulationsbad mit einem geringeren Lösungsmittelanteil von beispielsweise 5 bis 20 Gew.-% geführt.In a special embodiment, in the manufacture of the grip tapes, the backing material soaked with polyurethane solution is first passed through a first aqueous coagulation bath with a higher solvent content of, for example, 15 to 35% by weight and then through a second aqueous coagulation bath with a lower solvent content of, for example, 5 to 20% by weight. -% guided.

Zweckmäßig wird das Trägermaterial vor der Tränkung mit Polyurethanlösung einer Vorbehandlung mit Alkalisierungsmitteln oder mit chlorierten Kohlenwasserstoffen unterzogen. Dadurch wird Feinfaserigkeit erreicht, indem die Faser, beispielsweise von DTEX 1,7, mehrmals - bevorzugt sechsmal - gesplittet wird. Aufgrund der Feinfaserigkeit wird der Einschluß von Luftbläschen im Endprodukt gesteigert und ausgezeichnete Saugfähigkeit erzielt.The substrate material is expediently subjected to a pretreatment with alkalizing agents or with chlorinated hydrocarbons before impregnation with polyurethane solution. This achieves fine fibrousness by repeatedly - for example from DTEX 1.7 - preferably six times - is split. Due to the fine fibers, the inclusion of air bubbles in the end product is increased and excellent absorbency is achieved.

Es ist besonders günstig, die Längskanten der Griffbänder abzuschrägen.It is particularly beneficial to bevel the longitudinal edges of the grip tapes.

Die erfindungsgemäßen Griffbänder enthalten als Trägermaterial ein Vlies, Gewebe oder Gewirke, deren Dehnfähigkeit vor der Verarbeitung in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung mindestens 10 % beträgt. Vorzugsweise liegt die Dehnfähigkeit des Trägermaterials in Querrichtung und/oder Längsrichtung und/ oder Diagonalrichtung jeweils zwischen 20 und 50 %. Sie kann je nach Verwendungszweck des Griffbandes 50 bis 70 % oder sogar 100 % und mehr betragen. Die Dehnfähigkeit des Trägermaterials ist für die hervorragenden Eigenschaften der Griffbänder von besonderer Bedeutung.The grip tapes according to the invention contain a nonwoven, woven or knitted fabric, the stretchability of which before processing in the transverse and / or longitudinal direction and / or diagonal direction is at least 10%. The extensibility of the carrier material in the transverse direction and / or longitudinal direction and / or diagonal direction is preferably between 20 and 50% in each case. Depending on the intended use of the grip tape, it can amount to 50 to 70% or even 100% and more. The elasticity of the backing material is particularly important for the excellent properties of the grip tapes.

Sofern Gewebe als Trägermaterial eingesetzt werden, bestehen diese vor allem aus Baumwolle, Mischgewebe oder Kunststoffgewebe. Besonders günstig erwies sich Gaze, insbesondere Baumwollgaze. Eine Baumwollgaze, die ähnlich der zur Wundbehandlung eingesetzten ist, jedoch eine Dehnfähigkeit in Querrichtung oder Längsrichtung von mindestens 20 %, speziell mindestens 50 % aufweist, wird bevorzugt.If fabrics are used as the backing material, they mainly consist of cotton, blended fabrics or plastic fabrics. Gauze, especially cotton gauze, proved to be particularly favorable. A cotton gauze which is similar to that used for wound treatment, but has a stretchability in the transverse or longitudinal direction of at least 20%, especially at least 50%, is preferred.

Auch Gewirke können mit Erfolg als Trägermaterialien für die erfindungsgemäßen Griffbänder eingesetzt werden, soweit ihre Dehnfähigkeit in Längs- und/oder Querrichtung und/oder Diagonalrichtung mindestens 10 %, bevorzugt 30 % und mehr beträgt. Textile Gewirke auf der Basis von Fäden aus Kunststoff-, Natur- oder Mischfasern sind geeignet.Knitted fabrics can also be used successfully as carrier materials for the grip tapes according to the invention, provided that their extensibility in the longitudinal and / or transverse direction and / or diagonal direction is at least 10%, preferably 30% and more. Textile knitted fabrics based on threads made of plastic, natural or mixed fibers are suitable.

Wird Vlies als Trägermaterial eingesetzt, so kommen dafür die verschiedensten Kunststoff-, Natur- und/oder Mischfasern in Betracht. Günstig erwiesen sich Vliese auf der Basis von Polyester-, Polyacryl- und/oder Poly- äthylenfasern oder auch Mischfasern aus Kunststoff und Baumwolle. Es können beliebige Vliese eingesetzt werden, vorausgesetzt, sie weisen die entsprechende Dehnfähigkeit in Querrichtung und/oder Längsrichtung von mindestens 10 % auf. Spinnvliese und bevorzugt genadelte Spinnvliese werden mit Vorteil als Trägermaterial verwendet. Die Vliese sind in der Regel sehr feinfasrig und enthalten vorzugsweise Fasern im Denierbereich von DTEX 1,7. Die Faserlängen sind keiner besonderen Beschränkung unterworfen, liegen jedoch im allgemeinen zwischen 20 und 70 mm, bevorzugt zwischen 30 und 50 mm.If fleece is used as the backing material, a wide variety of plastic, natural and / or mixed fibers can be used. Nonwovens based on polyester, polyacrylic and / or polyethylene fibers or mixed fibers made of plastic and cotton proved to be favorable. Any fleece can be used, provided that it has the appropriate extensibility in the transverse and / or longitudinal direction of at least 10%. Spunbonded and preferably needled spunbonded nonwovens are advantageously used as the carrier material. The nonwovens are generally very fine-fiber and preferably contain fibers in the denier range of DTEX 1.7. The fiber lengths are not particularly restricted, but are generally between 20 and 70 mm, preferably between 30 and 50 mm.

Die Dicke des Trägermaterials kann sehr gering gehalten werden, was den Vorteil mit sich bringt, daß die endgültigen Bänder gleichfalls dünn sind und somit die Griffstärke durch Aufbringung des Griffbandes nur unwesentlich erhöht wird. Durch die große Dehnfähigkeit der Griffbänder kann beim Aufwickeln des Bandes auf den Griff die Zunahme der Griffstärke außerordentlich gering gehalten werden. Mit zunehmender Dehnfähigkeit des Bandes nimmt die Griffstärkenveränderung ab.The thickness of the backing material can be kept very small, which has the advantage that the final tapes are also thin and thus the grip strength is only slightly increased by applying the grip tape. Due to the great elasticity of the grip tapes, the increase in grip strength can be kept extremely small when the tape is wound onto the handle. The change in grip strength decreases with increasing elasticity of the band.

Das aus Vlies, Gewebe oder Gewirke mit einer Dehnfähigkeit in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung von mindestens 10 % bestehende Trägermaterial ist mit einer Imprägnierung auf der Basis von Polyurethanen beschichtet. Als Polyurethane können die bekannten Polyurethanelastomeren eingesetzt werden, die gegebenenfalls durch Einarbeitung weichmachender Zusätze modifiziert sein können. Ferner können die Polyurethane weitere thermoplastische Polymere, wie beispielsweise Polyvinylacetat, Polyacrylester oder bevorzugt Polyvinylhalogenide,The carrier material consisting of fleece, woven fabric or knitted fabric with an extensibility in the transverse direction and / or longitudinal direction and / or diagonal direction of at least 10% is coated with an impregnation on the basis of polyurethanes. The known polyurethane elastomers, which can optionally be modified by incorporating plasticizing additives, can be used as polyurethanes. Furthermore, the polyurethanes can contain further thermoplastic polymers, such as, for example, polyvinyl acetate, polyacrylic esters or preferably polyvinyl halides,

insbesondere Polyvinylchlorid, in Mengen bis zu 30 Gew.% enthalten. Der hier verwendete Ausdruck "Polyurethan" soll also beliebige, gegebenenfalls modifizierte Polyurethane, gegebenenfalls unter Einschluß geringerer Mengen weiterer thermoplastischer Polymerer umfassen.in particular polyvinyl chloride, contained in amounts of up to 30% by weight. The term "polyurethane" used here is intended to encompass any optionally modified polyurethanes, optionally including smaller amounts of other thermoplastic polymers.

Bei der Herstellung der Griffbänder der Erfindung wird das Trägermaterial mit einer Lösung auf der Basis von Polyurethanen, gelöst in einem wasserlöslichen Lösungsmittel, getränkt. Zweckmäßig wird dabei die Trägerbahn durch ein Polyurethan-Lösungsmittelbad geführt. Als Lösungsmittel für das aufzubringende Polyurethan ist eine Vielzahl wasserlöslicher Lösungsmittel geeignet, wie beispielsweise Ketone wie Aceton oder Ester wie beispielsweise Äthylacetat sowie Dimethylacetamid oder Dimethylsulfoxid. Bevorzugt wird jedoch als Lösungsmittel für Polyurethan Dimethylformamid eingesetzt. Gemische derartiger Lösungsmittel können gleichfalls eingesetzt werden. Die Verwendung wasserlöslicher Lösungsmittel, insbesondere von Dimethylformamid, beeinflußt maßgeblich die Einbringung von Millionen von Luftbläschen in das Band und erhöht damit die Saugfähigkeit für Handschweiß und ergibt eine hervorragende Schockdämpfung. Gegebenenfalls kann die Trägerbahn auch mehrmals durch das Polyurethan-Lösungsmittelbad geführt werden. Ein mehrmaliges, z.B. zwei- oder dreimaliges Tränken des Trägermaterials in der Polyurethanlösung bei einer Verweildauer pro Bad von etwa 2 bis 10 Sekunden erhöht die Durchdringung des Trägermaterials, so daß dieses durch und durch getränkt wird.In the manufacture of the grip tapes of the invention, the carrier material is impregnated with a solution based on polyurethanes, dissolved in a water-soluble solvent. The carrier web is expediently passed through a polyurethane solvent bath. A large number of water-soluble solvents, such as, for example, ketones such as acetone or esters such as, for example, ethyl acetate and dimethylacetamide or dimethyl sulfoxide, are suitable as solvents for the polyurethane to be applied. However, dimethylformamide is preferably used as the solvent for polyurethane. Mixtures of such solvents can also be used. The use of water-soluble solvents, especially dimethylformamide, significantly influences the introduction of millions of air bubbles into the belt and thus increases the absorbency for hand sweat and results in excellent shock absorption. If necessary, the carrier web can also be passed through the polyurethane solvent bath several times. A repeated, e.g. Soaking the support material in the polyurethane solution two or three times with a residence time per bath of about 2 to 10 seconds increases the penetration of the support material, so that it is thoroughly soaked.

Das Polyurethan-Tränkungsbad kann übliche chemische Zusätze enthalten, wie beispielsweise Weichmacher, Farbstoffe, Farbpasten, Gleitmittel, Stabilisierungsmittel usw. Der Zusatz von Polyglykolen dient vor allem der Weichmachung und erhöht die Einarbeitung von Luftblasen. Gegebenenfalls kann das Trägermaterial auch vor der Tränkung mit der Polyurethanlösung einer Vorbehandlung unterzogen werden, um die Fasern des Trägermaterials zu splitten. Hierzu eignet sich entweder eine Alkalisierungsbehandlung mit üblichen Alkalisierungsmitteln, wie beispielsweise Natriumcarbonat, das zweckmäßig in einer 5- bis 10 gew.%igen wäßrigen Lösung angewendet wird, oder durch Tränken mit chlorierten Kohlenwasserstoffen, z.B. Methylenchlorid. Die Alkalisierungsbehandlung erfolgt in günstiger Weise bei erhöhten Temperaturen, bevorzugt bei etwa 60 bis 90°C, insbesondere 80 bis 90°C. Eine Vorbehandlung mit chlorierten Kohlenwasserstoffen erfolgt zweckmäßig bei deren Siedepunkt und während eines nur kurzen Zeitraums, beispielsweise von 1 Minute. Die beiden Vorbehandlungsarten führen zu einer vielfachen Splittung der Faser, wobei die Fasern häufig sechsmal oder mehr aufgespalten werden. Die Vorbehandlung des Trägermaterials ist nicht unbedingt erforderlich, erhöht jedoch die Luftbläschenaufnahme bei der Aufbringung des Polyurethans und dessen Koagulierung.The polyurethane impregnation bath can contain conventional chemical additives, such as plasticizers, dyes, color pastes, lubricants, stabilizers, etc. The addition of polyglycols is used primarily for plasticization and increases the incorporation of air bubbles. If appropriate, the carrier material can also be subjected to a pretreatment before it is impregnated with the polyurethane solution in order to split the fibers of the carrier material. Either an alkalizing treatment with conventional alkalizing agents, such as sodium carbonate, which is expediently used in a 5 to 10% strength by weight aqueous solution, or by impregnation with chlorinated hydrocarbons, for example methylene chloride, is suitable for this purpose. The alkalization treatment is advantageously carried out at elevated temperatures, preferably at about 60 to 90 ° C., in particular 80 to 90 ° C. Pretreatment with chlorinated hydrocarbons is expediently carried out at their boiling point and for a short period, for example of 1 minute. The two types of pretreatment lead to multiple splitting of the fiber, the fibers often being split six or more times. The pretreatment of the carrier material is not absolutely necessary, but increases the air bubble absorption when the polyurethane is applied and its coagulation.

Nach Tränkung des Trägermaterials mit der Polyurethanlösung kann das getränkte Material unmittelbar durch mindestens ein Koagulationsbad aus einem Gemisch des zur Lösung des Polyurethans verwendeten wasserlöslichen Lösungsmittels mit Wasser geführt werden. Ein vorheriges Abpressen oder Trocknen des mit Polyurethanlösung getränkten Trägermaterials ist nicht erforderlich. Zweckmäßig wird das ein- oder mehrmals getränkte Trägermaterial jedoch nach Verlassen des Tränkungsbades auf die gewünschte Dicke abgerakelt, während die Unterseite des Materials über eine Stahlwalze läuft, so daß Ober- und Unterseite des Griffbandmaterials gleich glatt sind. Das Band hat somit den Vorteil, daß es beidseitig verwendet werden kann. Vorzugsweise werden zwei Koagulationsbäder angewendet, wobei im ersten Bad noch ein beträchtlicher Lösungsmittelanteil, beispielsweise von 15 bis 35 Gew.-%, insbesondere 20 bis 30 Gew.-%, vorliegt, während im zweiten Koagulationsbad nur noch ein geringerer Anteil Lösungsmittel von etwa 5 bis 20 Gew.-%, bevorzugt etwa 10 Gew.-%, enthalten ist. Das wäßrige Koagulationsbad wird zweckmäßig bei leicht erhöhter Temperatur, z.B. bei etwa 20 bis 300, gehalten. Werden mehrere Koagulationsbäder verwendet, so liegt die Temperatur des ersten wäßrigen Bades gewöhnlich etwas höher, z.B. bei 25 bis 30°C, während das zweite wäßrige Bad Temperaturen von etwa 20 bis 25°C aufweist. Selbstverständlich kann die Zahl der Koagulationsbäder erhöht werden, wobei stets der Wassergehalt des Koagulierbades gegenüber dem Lösungsmittelgehalt vom ersten bis letzten Bad zunimmt. Durch die Anwendung von zwei oder mehr Koagulationsbädern wird neben der Koagulierung des Polyurethans eine weitgehende Ausspülung des wasserlöslichen Lösungsmittels unter gleichzeitiger Ausbildung einer großen Menge Luftbläschen innerhalb der Struktur erreicht.After the support material has been impregnated with the polyurethane solution, the impregnated material can be passed directly through at least one coagulation bath from a mixture of the water-soluble solvent used to dissolve the polyurethane with water. It is not necessary to press or dry the carrier material soaked with polyurethane solution beforehand. Appropriately, the substrate material soaked one or more times is scraped to the desired thickness after leaving the impregnation bath, while the underside of the material runs over a steel roller, so that the top and bottom of the grip tape material are equally smooth. The tape thus has the advantage that it can be used on both sides. Preferably two coagulation baths are used, with another be in the first bath there is a substantial proportion of solvent, for example from 15 to 35% by weight, in particular 20 to 30% by weight, while in the second coagulation bath only a small proportion of solvent is from about 5 to 20% by weight, preferably about 10% by weight % is included. The aqueous coagulation bath is advantageously kept at a slightly elevated temperature, for example at about 20 to 300. If several coagulation baths are used, the temperature of the first aqueous bath is usually somewhat higher, for example 25 to 30 ° C., while the second aqueous bath has temperatures of approximately 20 to 25 ° C. Of course, the number of coagulation baths can be increased, the water content of the coagulation bath always increasing compared to the solvent content from the first to the last bath. By using two or more coagulation baths, in addition to coagulating the polyurethane, extensive rinsing out of the water-soluble solvent is achieved with the simultaneous formation of a large amount of air bubbles within the structure.

Nach Verlassen des Koagulationsbades wird die Flüssigkeit von dem beschichteten Trägermaterial abgepreßt. Dies erfolgt zweckmäßig dadurch, daß das Material durch Walzen hindurchgeführt wird.After leaving the coagulation bath, the liquid is pressed off from the coated carrier material. This is advantageously done by passing the material through rollers.

Im Anschluß an den Abpreßvorgang wird das beschichtete Material mit Wasser gespült, erneut abgepreßt und getrocknet. Das Auswaschen erfolgt in der Regel mit normalem kalten Wasser, gegebenenfalls unter Zusatz von Weichmacher. Zweckmäßig wird dabei die Materialbahn über eine Trommel geführt und gespannt und in gewissen Zeitabständen Wasser in das Material hinein- und wieder herausgepreßt. Nach dem letzten Abpressen erfolgt eine Trocknung des Materials. Vorzugsweise wird das abgepreßte beschichtete Bahnmaterial durch einen auf Temperaturen von 100 bis 160°C, insbesondere 120 bis 1500C gehaltenen Trockenofen geführt, um die restliche Feuchtigkeit zu entfernen. Das mit Koagulat beschichtete Trägermaterial unterliegt während des Herstellungsprozesses, d.h. beim Tränken, Koagulieren und Ausspülen, einer Schrumpfung, die meist bei 10 bis 15 % liegt und bis zu 30 % betragen kann, so daß im allgemeinen das Bahnmaterial während der Trocknung wieder gespannt wird. Durch die Spannung erfolgt eine Ausdehnung der Breite um etwa 15 bis 25 %, vorzugsweise 20 %.Following the pressing process, the coated material is rinsed with water, pressed again and dried. Washing is usually carried out with normal cold water, if necessary with the addition of a plasticizer. The material web is expediently guided and tensioned over a drum and water is pressed into and out of the material at certain time intervals. After the last pressing, the material is dried. Preferably, the extorted coated sheet material is passed through a heated to temperatures of 100 to 160 ° C, in particular 120 drying oven held to 150 0 C, the remaining Feuch action to remove. The carrier material coated with coagulate is subject to a shrinkage during the manufacturing process, ie during impregnation, coagulation and rinsing, which is usually 10 to 15% and can be up to 30%, so that the web material is generally tensioned again during drying. The tension causes the width to expand by about 15 to 25%, preferably 20%.

Das nach dem Trocknungsvorgang erhaltene beschichtete Material kann anschließend aufkalandert werden, wobei zweckmäßig Ölpapier dazwischengerollt wird, damit die Bahnen nicht aneinanderkleben.The coated material obtained after the drying process can then be calendered on, with oil paper being advantageously rolled in between so that the webs do not stick to one another.

Je nach Verwendungszweck werden dann die erhaltenen beschichteten Bahnmaterialien auf die gewünschte Größe zu Bändern oder Streifen von beispielsweise 20 bis 30 mm Breite geschnitten und können dann zur Abgabe an den Verbraucher konfektioniert, z.B. auf einen Pappkern gewickelt und verblistert werden. Die beschichteten Bahnmaterialien können in Abhängigkeit der gewünschten Dehnfähigkeit des Bandes in Quer- oder Längs- oder Diagonalrichtung geschnitten werden. Speziell werden die beschichteten Bahnmaterialien in Querrichtung geschnitten, so daß die hohe Dehnfähigkeit des Ausgangs-Trägermaterials in Querrichtung nun der Dehnfähigkeit des Griffbandes in Längsrichtung entspricht. Nach einer bevorzugten Ausführungsform wird beschichtetes Gewebematerial im Winkel zu Kette- oder Schußrichtung des Gewebes geschnitten. Dabei werden sehr dehnfähige Schrägbänder erhalten, die sich bei der Aufbringung auf Griffe oder Griffauflagen besonders gut den Rundungen ohne Faltenbildung anpassen. Der Schneidvorgang erfolgt zweckmäßig mit Hilfe von Stanzmessern, speziell unter Verwendung von verklebungshemmenden Mitteln, wie z.B. Talkum.Depending on the intended use, the coated web materials obtained are then cut to the desired size into strips or strips, for example 20 to 30 mm wide, and can then be made up for delivery to the consumer, e.g. wound on a cardboard core and blistered. The coated web materials can be cut in the transverse, longitudinal or diagonal direction depending on the desired stretchability of the tape. Specifically, the coated web materials are cut in the transverse direction, so that the high elasticity of the starting carrier material in the transverse direction now corresponds to the elasticity of the grip tape in the longitudinal direction. According to a preferred embodiment, coated fabric material is cut at an angle to the warp or weft direction of the fabric. This gives very stretchable bias binding that adapts particularly well to the curves without wrinkles when applied to handles or grip pads. The cutting process is expediently carried out with the aid of punching knives, especially using anti-stick agents, such as Talc.

Es ist besonders günstig, die erfindungsgemäßen Griffbänder, insbesondere solche, die zur schraubenförmigen Umwicklung von Griffen bestimmt sind, an den Längskanten abzuschrägen. Die Abschrägung kann an beiden Längskanten einer Oberfläche oder an beiden Längskanten entgegengesetzter Oberflächen erfolgen, so daß die jeweiligen schrägen Schnittflächen entweder im Winkel zueinander oder parallel verlaufen. Das erfindungsgemäße beschichtete Material erweist sich an den Schnittflächen als völlig schnittfest, ohne daß ein Ausfransen des Trägermaterials auftritt. Dabei kann der Schrägschneidvorgang ohne Anwendung von sonst üblichen Kantenleimmitteln durchgeführt werden. Die Abschrägung der Längskanten des Griffbandes ermöglicht ein überlappendes schraubenförmiges Aufwickeln ohne Beeinflussung der Griffstärke oder Wulstbildung in den Überlappungsbereichen.It is particularly favorable to chamfer the grip tapes according to the invention, in particular those which are intended for the helical wrapping of handles, on the longitudinal edges. The beveling can take place on both longitudinal edges of one surface or on both longitudinal edges of opposite surfaces, so that the respective oblique cut surfaces run either at an angle to one another or parallel. The coated material according to the invention proves to be completely cut-resistant at the cut surfaces without the carrier material fraying. The bevel cutting process can be carried out without the use of the usual edge glue. The bevelling of the longitudinal edges of the grip tape enables an overlapping helical winding without influencing the grip thickness or bulging in the overlap areas.

Die Griffbänder der Erfindung sind für die verschiedensten Zwecke brauchbar. Sie dienen zur Umhüllung von Gerätegriffen, die besonders gut in der Hand liegen müssen, und liefern aufgrund der speziellen Ausbildung eine gut zu handhabende griffige, rutschfeste, schwingungsdämpfende Oberfläche. Die Griffbänder sind insbesondere für Griffe von Sportgeräten, beispielsweise für Tennis-, Tischtennis-, Squash-, Hockey- und Golfschläger, für den Gabelbaum des Surfsegels sowie für Fahrradlenkstangen oder Lenkräder geeignet. Ein weiterer Verwendungszweck der Griffbänder ergibt sich im Schießsport zur Abdeckung der Griffflächen an Handschutz und Griffmulde von Gewehren. In diesem Fall wird ein passendes Stück Griffband, das auf der Rückseite mit selbstklebendem Druckkleber und Schutzpapier versehen ist, nach Entfernen der Schutzfolie auf die Griffflächen aufgebracht, so daß das Gewehr ohne Abrutschen der Hand exakt gehalten werden kann. In ähnlicher Weise werden auch Griffe von Golfschlägern durch Aufkleben eines trapezförmigen Stück Griffbandes auf den Griff umhüllt. Bei den Sportschlägern, wie Tennis-, Squash- oder Tischtennisschlägern, wird das Griffband dagegen schraubenförmig über den Griff gewickelt.The grip tapes of the invention are useful for a variety of purposes. They serve to encase device handles that have to fit particularly well in the hand and, thanks to their special design, provide a non-slip, non-slip, vibration-damping surface that is easy to handle. The grip tapes are particularly suitable for handles of sports equipment, for example for tennis, table tennis, squash, hockey and golf clubs, for the boom of the surf sail and for bicycle handlebars or steering wheels. Another purpose of the grip tapes is in shooting sports to cover the grip areas on the hand protection and grip recess of rifles. In this case, a suitable piece of grip tape, which is provided on the back with self-adhesive pressure adhesive and protective paper, is applied to the grip surfaces after removing the protective film, so that the rifle can be held exactly without slipping off the hand. Similarly, golf club grips are encased by gluing a trapezoidal piece of grip tape onto the grip. At the sports clubs like, like tennis, squash or table tennis rackets, however, the grip tape is wound helically over the handle.

In der Regel erhalten Sportschläger, wie z.B. Tennis-oder Squashschläger, ein erstes oder Grundgriffband, das dem früher verwendeten Lederband entspricht und häufig bereits bei der Fertigung angebracht wird. Für dieses Grundgriffband werden meist größere Dicken bevorzugt. Die Griffbänder geringerer Dicke eignen sich dagegen insbesondere für sogenannte Overgrip-Bänder, die über das Grundgriffband gewickelt werden. Je nach Spielintensität des Sportgerätbenutzers wird das Overgrip-Band, insbesondere ein solches auf der Grundlage von Vlies, das sich durch äußerst geringe Dicke auszeichnet, in mehr oder weniger großen Zeitabständen aufgewickelt bzw. erneuert. Die vorstehend erwähnte spezielle Ausführungsform der Bänder mit Abschrägung der Längskanten ermöglicht eine glatte Aufbringung des Bandes ohne Wulstbildung in den Überlappungsbereichen. Die äußerst geringe Dicke dieser Bänder, kombiniert mit einer extrem hohen Dehnfähigkeit, erlaubt die Aufbringung von Griffbändern auf Gerätegriffe, ohne daß die Griffstärke merklich erhöht wird, was sich beispielsweise bei den Ballspielschlägern als äußerst vorteilhaft herausstellt und die Spieleigenschaften erheblich verbessert. Die erhöhte Klebrigkeit und absolute Rutschfestigkeit, welche durch die erfindungsgemäßen Griffbänder vermittelt werden, sind gleichfalls Eigenschaften, die besonders bei Ballspielschlägern sehr geschätzt werden. Darüber hinaus zeigen die Produkte, ohne daß weitere Arbeitsgänge wie Schleifen und mehrmaliges Kalandern notwendig wären, eine äußerst weiche Oberfläche. Von wesentlicher Bedeutung für die Qualität der erfindungsgemäßen Griffbänder erwiesen sich die in Millionenzahl eingearbeiteten Luftbläschen, wodurch eine leichte Federwirkung ähnlich einer Schwammwirkung und damit keine Prellwirkung bei der Handhabung des Griffs beim Spielen erzielt wird. Die glatte und schockdämpfende Ausführung der Griffbänder vermeidet bei der Handhabung von mit derartigen Griffbändern umwickelten Griffen jegliche Blasenbildung an den Händen, und es kann auf diese Weise der gefürchteten Tennisarmkrankheit vorgebeugt werden. Die starke Saugfähigkeit aufgrund der eingearbeiteten Luftbläschen sorgt für die rasche Abführung von Schweiß, der sich häufig bei der Handhabung von Sportgeräteschlägern als sehr nachteilig auswirkt und die Spieleigenschaften beeinträchtigt. Die Griffbänder der Erfindung zeichnen sich aufgrund der Kombination der angegebenen Komponenten und der speziellen Herstellungsart durch erhöhte Lebensdauer und eine günstige Wärmebeständigkeit bis zu etwa 800C und kurzfristig sogar darüber aus.As a rule, sports rackets, such as tennis or squash rackets, are given a first or basic grip tape which corresponds to the leather strap used previously and is often already attached during production. Larger thicknesses are usually preferred for this basic grip tape. In contrast, the grip tapes of reduced thickness are particularly suitable for so-called overgrip tapes which are wound over the basic grip tape. Depending on the game intensity of the sports equipment user, the overgrip tape, in particular one based on fleece, which is characterized by an extremely small thickness, is wound up or renewed at more or less large intervals. The above-mentioned special embodiment of the tapes with bevelling of the longitudinal edges enables the tape to be applied smoothly without bulging in the overlap regions. The extremely small thickness of these straps, combined with an extremely high elasticity, allows the application of grip straps on device handles without the grip strength being increased appreciably, which, for example, turns out to be extremely advantageous in the case of ball game rackets and considerably improves the playing properties. The increased stickiness and absolute slip resistance, which are conveyed by the grip tapes according to the invention, are likewise properties which are particularly valued in ball game rackets. In addition, the products show an extremely soft surface without the need for further operations such as grinding and repeated calendering. The air bubbles incorporated in millions proved to be of essential importance for the quality of the grip tapes according to the invention, as a result of which a slight spring effect similar to a sponge effect and thus no bouncing effect in the Handle handling while playing is achieved. The smooth and shock-absorbing design of the grip tapes avoids any blistering on the hands when handling handles wrapped with such grip tapes, and in this way the dreaded tennis elbow disease can be prevented. The strong absorbency due to the built-in air bubbles ensures that sweat is drained away quickly, which often has a very disadvantageous effect when handling sports equipment rackets and impairs the playing properties. Due to the combination of the specified components and the special type of manufacture, the grip tapes of the invention are distinguished by increased service life and favorable heat resistance up to about 80 ° C. and even for a short time even more.

Die nachfolgenden Beispiele erläutern die Erfindung. Die mengenmäßigen Prozentangaben beziehen sich auf das Gewicht.The following examples illustrate the invention. The quantitative percentages relate to the weight.

Beispiel 1example 1

Eine Trägerbahn aus genadeltem Polyester-Spinnvlies mit einer Dicke von 0,3 mm, einer Faserlänge von 30 bis 50 mm, einer Dehnfähigkeit in Querrichtung von 70 % und in Längsrichtung von 10 % wird zur Vorbehandlung durch ein auf etwa 80C erwärmtes Alkalisierungsbad aus 6 %iger Na2C03-Lösung in Wasser geführt, um eine Splittung der Fasern zu erreichen. Nach etwa 10-minütigem Kontakt mit dem Alkalisierungsbad wird die vorbehandelte Trägerbahn in ein Polyurethan-Tränkungsbad, bestehend aus einer 8 bis 10 %igen Lösung von Polyurethan in Dimethylformamid unter Zusatz von 0,3 bis 0,9 % Weichmacher und 3 % Farbpaste geleitet. Die Verweilzeit der Trägerbahn im Polyurethan-Tränkungsbad beträgt etwa 10 Sekunden. Die beschichtete Trägerbahn wird dann über Walzen ohne Abpressen oder Trocknen in das Koagulationsbad überführt. Das erste Koagulationsbad besteht aus Wasser mit einem Gehalt an 30 % Dimethylformamid und wird bei einer Temperatur von etwa 300C gehalten. Nach Durchlaufen des ersten Koagulationsbades wandert die beschichtete Trägerbahn in ein zweites wäßriges Koagulationsbad, das nur noch 10 % Dimethylformamid enthält. Die Temperatur des zweiten Koagulationsbades liegt zwischen 20 und 24°C. Nach Verlassen der Koagulationsbäder ist das Polyurethan auf dem Vlies koaguliert und das Lösungsmittel weitgehend entfernt. Im Anschluß an die Koagulationsstufe wird die in und auf der Bahn enthaltene Flüssigkeit durch Walzen abgepreßt, wonach die behandelte Bahn mit kaltem Wasser ausgewaschen wird, dann über eine Trommel geführt und gespannt wird und erneut Wasser in das Material eingedrückt und wieder herausgepreßt wird. Der Vorgang wird zweimal wiederholt. Danach ist das Lösungsmittel vollständig aus dem beschichteten Material ausgewaschen. Die beschichtete Vliesbahn unterliegt während der vorausgehenden Vorgänge einer Schrumpfung von bis zu 15 %. Während der sich anschließenden Trocknung im Trockenofen bei etwa 150°C wird die Bahn in der Breite um etwa 20 % gespannt. Nach der Trocknung wird das Bahnmaterial unter Zwischenlegung von Ölpapier, um ein Aneinanderkleben der Bahnen zu vermeiden, aufkalandert. Die fertigen Bahnen werden in Querrichtung zu Streifen von 25 mm Breite geschnitten und auf Pappkerne aufgerollt. Die Dicke der fertigen Streifen beträgt 0,45 mm.A carrier web made of needled polyester spunbonded fabric with a thickness of 0.3 mm, a fiber length of 30 to 50 mm, an extensibility in the transverse direction of 70% and in the longitudinal direction of 10% is used for pretreatment by a 6% alkaline bath heated to about 80C iger Na 2 C0 3 solution in water to achieve a splitting of the fibers. After about 10 minutes of contact with the alkalizing bath, the pretreated carrier web is passed into a polyurethane impregnation bath consisting of an 8 to 10% solution of polyurethane in dimethylformamide with the addition of 0.3 to 0.9% plasticizer and 3% color paste. The carrier web remains in the polyurethane impregnation bath for about 10 seconds. The coated carrier web is then transferred to the coagulation bath via rollers without pressing or drying. The first coagulation bath consists of Water containing 30% dimethylformamide and is kept at a temperature of about 30 0 C. After passing through the first coagulation bath, the coated carrier web moves into a second aqueous coagulation bath which only contains 10% dimethylformamide. The temperature of the second coagulation bath is between 20 and 24 ° C. After leaving the coagulation baths, the polyurethane on the fleece is coagulated and the solvent is largely removed. Following the coagulation step, the liquid contained in and on the web is squeezed out by rolling, after which the treated web is washed out with cold water, then passed over a drum and tensioned, and water is pressed into the material and squeezed out again. The process is repeated twice. The solvent is then completely washed out of the coated material. The coated nonwoven web is subject to shrinkage of up to 15% during the preceding operations. During the subsequent drying in the drying oven at about 150 ° C, the web is stretched in width by about 20%. After drying, the web material is calendered with the interposition of oil paper to prevent the webs from sticking together. The finished sheets are cut transversely into strips 25 mm wide and rolled up on cardboard cores. The thickness of the finished strips is 0.45 mm.

Die erhaltenen Griffbänder wurden auf die Griffe von Tennisschlägern und Tischtennisschlägern aufgewickelt. Die so umwickelten Schlägergriffe zeigten aufgrund der geringen Dicke und außerordentlichen Dehnfähigkeit des Bandmaterials eine kaum veränderte Griffstärke. Die Schlägergriffe lagen gut in der Hand, waren griffig und ergaben hervorragende Spieleigenschaften aufgrund ihrer schockdämpfenden und saugfähigen Eigenschaften.The grip tapes obtained were wound onto the handles of tennis rackets and table tennis rackets. The racket handles wrapped in this way showed a barely changed grip thickness due to the low thickness and extraordinary elasticity of the band material. The club grips were good to hold, had a good grip and gave excellent playing properties due to their shock-absorbing and absorbent properties.

Beispiel 2Example 2

Die Maßnahmen von Beispiel 1 werden mit der Abweichung wiederholt, daß als Trägermaterial ein Baumwollgewebe mit einer Dehnfähigkeit in Querrichtung von 60 % und einer Dicke von 0,7 mm verwendet wird.The measures of Example 1 are repeated with the difference that a cotton fabric with a stretchability in the transverse direction of 60% and a thickness of 0.7 mm is used as the carrier material.

Die danach erhaltenen Griffbänder besitzen eine Dicke von 0,9 bis 1,0 mm und werden als Grundumwicklungen für Tennisschlägergriffe oder als Umhüllungen für Golfschlägergriffe eingesetzt. Die zum Umwicklung von Tennisschlägergriffen vorgesehenen Bänder werden zu Streifen von etwa 25 mm Breite geschnitten und an den Längskanten auf einer Oberfläche abgeschrägt. Durch die Abschrägung der Längskanten ließen sich die Bänder ohne jegliche Wulstbildung an den Überlappungsbereichen schraubenförmig auf die Griffe der Sportschläger aufwickeln.The grip tapes obtained afterwards have a thickness of 0.9 to 1.0 mm and are used as basic wraps for tennis racket grips or as coverings for golf club grips. The tapes provided for wrapping tennis racket handles are cut into strips about 25 mm wide and bevelled on one surface at the longitudinal edges. Due to the bevelling of the longitudinal edges, the tapes could be wound helically on the handles of the sports rackets without any bulge at the overlap areas.

Die zur Umhüllung von Golfschlägergriffen vorgesehener Bänder werden nach Beschichten mit Druckkleber und Schutzfolie in Anpassung an die Dicke der Schlägergriffe trapezförmig geschnitten und auf den Griff aufgeklebt.The tapes provided for wrapping golf club grips are trapezoidally cut after coating with pressure adhesive and protective film to match the thickness of the club grips and glued to the handle.

Die mit den Bändern umhüllten Griffe zeigen hervorragende Rutschfestigkeit, Saugfähigkeit und Federwirkung.The handles covered with the tapes show excellent slip resistance, absorbency and spring action.

Beispiel 3Example 3

Es wurde ein Griffband entsprechend Beispiel 2 hergestellt.A grip tape according to Example 2 was produced.

Die erhaltenen Bänder wurden einseitig mit Druckkleber beschichtet und mit Schutzfolie versehen. Bandstücke in geeigneter Größe wurden nach Entfernung der Schutzfolie an der Griffstelle des Handschutzes sowie in der Griffmulde von Gewehren aufgeklebt und ermöglichten aufgrund der hervorragenden Rutschfestigkeit, Saugfähigkeit und Schockdämpfung eine exakte Handhabung und somit erhöhte Zielsicherheit der Gewehre.The tapes obtained were coated on one side with pressure-sensitive adhesive and provided with a protective film. Tape pieces of a suitable size were removed after removing the protective film glued to the grip of the handguard as well as in the recessed grip of rifles and, due to the excellent slip resistance, absorbency and shock absorption, enable exact handling and thus increased target safety of the rifles.

Beispiel 4Example 4

Ein Spinnvlies aus Polyacryl-Baumwollmischfaser mit einer Faserlänge von 40 mm, einer Dehnfähigkeit in Querrichtung bis zu 40 % und in Längsrichtung von 20 % sowie einer Dicke von 0,35 mm wurde ohne Vorbehandlung zweimal durch ein Polyurethan-Tränkungsbad bei jeweiliger Verweilzeit pro Bad von etwa 5 Sekunden geleitet. Das Bad enthielt eine Lösung von Polyurethan in Dimethylformamid unter Zusatz von Gleitmittel und Farbstoff. Nach der Tränkung mit Polyurethanlösung erfolgt die Koagulierung in einem 20 % Dimethylformamid enthaltenden Wasserbad bei 25°C.A spunbonded non-woven fabric made of polyacrylic-cotton mixed fiber with a fiber length of 40 mm, an extensibility in the transverse direction of up to 40% and in the longitudinal direction of 20% and a thickness of 0.35 mm was treated twice without pretreatment by a polyurethane soaking bath with a respective residence time per bath of about 5 seconds. The bath contained a solution of polyurethane in dimethylformamide with the addition of lubricant and dye. After impregnation with polyurethane solution, the coagulation is carried out in a water bath containing 20% dimethylformamide at 25 ° C.

Nach dem Abpressen der Flüssigkeit wird das Bahnmaterial in der in Beispiel 1 angegebenen Weise ausgewaschen, getrocknet und zu Bändern geschnitten, die über das Grundgriffband von Tennisschlägern aufgewickelt werden.After the liquid has been pressed off, the web material is washed out, dried and cut into ribbons in the manner indicated in Example 1, which are wound up by tennis rackets using the basic grip tape.

Die so hergestellten Griffbänder zeigten hervorragende Griffigkeit, Rutschfestigkeit, Saugfähigkeit und Schockdämpfung.The grip tapes produced in this way showed excellent grip, slip resistance, absorbency and shock absorption.

Claims (17)

1. Griffbänder auf der Basis von mit Kunststoff beschichteten Trägermaterialien, gekennzeichnet durch ein aus Vlies, Gewebe oder Gewirke bestehendes Trägermaterial, das vor seiner Verarbeitung eine Dehnfähigkeit in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung von jeweils mindestens 10 % aufweist, und eine durch Naßkoagulation aufgebrachte Imprägnierung auf der Basis von Polyurethanen.1. Grip tapes based on plastic-coated carrier materials, characterized by a carrier material consisting of non-woven, woven or knitted fabric, which has an extensibility in the transverse and / or longitudinal direction and / or diagonal direction of at least 10% each before processing, and one by Wet coagulation applied impregnation based on polyurethanes. 2. Griffbänder nach Anspruch 1, dadurch gekennzeichnet, daß das Trägermaterial vor der Verarbeitung eine Dehnfähigkeit von 20 bis 50 % aufweist.2. Grips according to claim 1, characterized in that the carrier material has an elasticity of 20 to 50% before processing. 3. Griffbänder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Trägermaterial aus einem gegebenenfalls genadelten Spinnvlies besteht, das vor seiner Verarbeitung eine Dehnfähigkeit in Querrichtung und/ oder Längsrichtung von mindestens 30 %, insbesondere eine Dehnfähigkeit in Querrichtung von mindestens 50 % aufweist.3. Grip tapes according to claim 1 or 2, characterized in that the carrier material consists of an optionally needled spunbond, which has an extensibility in the transverse direction and / or longitudinal direction of at least 30%, in particular an extensibility in the transverse direction of at least 50% before its processing. 4. Griffbänder nach Anspruch 1, dadurch gekennzeichnet, daß das Trägermaterial aus Baumwollgaze besteht, die vor ihrer Verarbeitung eine Dehnfähigkeit in Querrichtung oder in Längsrichtung von mindestens 20 % aufweist.4. Grips according to claim 1, characterized in that the carrier material consists of cotton gauze, which has an extensibility in the transverse or longitudinal direction of at least 20% before being processed. 5. Griffbänder nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Dicke des Vlies-Trägermaterials 0,2 bis 1,0 mm, insbesondere 0,3 bis 0,35 mm, beträgt.5. Grip tapes according to claim 1 to 3, characterized in that the thickness of the nonwoven backing material is 0.2 to 1.0 mm, in particular 0.3 to 0.35 mm. 6. Griffbänder nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß die Dicke des Gewebe-Trägermaterials 0,2 bis 1,0 mm, insbesondere 0,7 bis 0,8 mm, beträgt.6. Grip tapes according to claim 1 or 4, characterized in that the thickness of the fabric carrier material is 0.2 to 1.0 mm, in particular 0.7 to 0.8 mm. 7. Griffbänder nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß sie auf der Grundlage von Vlies eine Dicke von 0,35 bis 1,2 mm, insbesondere 0,45 bis 0,5 mm, und auf der Grundlage von Gewebe eine Dicke von 0,3 bis 1,2 mm, insbesondere 0,8 bis 0,9 mm, aufweisen.7. Grips according to claim 1 to 6, characterized in that they have a thickness of 0.35 to 1.2 mm, in particular 0.45 to 0.5 mm, and on the basis of fabric a thickness of on the basis of nonwoven 0.3 to 1.2 mm, in particular 0.8 to 0.9 mm. 8. Griffbänder nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß die Imprägnierung auf der Basis von Polyurethanen weitere thermoplastische Polymere, insbesondere Polyvinylchlorid, in Mengen bis zu 30 Gew.-% enthält.8. Grip tapes according to claims 1 to 7, characterized in that the impregnation based on polyurethanes contains further thermoplastic polymers, in particular polyvinyl chloride, in amounts of up to 30% by weight. 9. Griffbänder nach Anspruch 1 bis 8, dadurch gekennzeichnet, daß die Längskanten der Griffbänder abgeschrägt sind.9. grip tapes according to claim 1 to 8, characterized in that the longitudinal edges of the grip tapes are beveled. 10. Griffbänder nach Anspruch 1 bis 9, dadurch erhalten, daß a) ein aus Vlies, Gewebe oder Gewirke bestehendes Trägermaterial mit einer Dehnfähigkeit in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung von jeweils mindestens 10 % mit einer Lösung von Polyurethanen, gegebenenfalls unter Zusatz von geringeren Mengen weiterer thermoplastischer Polymerer, gelöst in einem wasserlöslichen Lösungsmittel, getränkt wird, b) das getränkte Material durch mindestens ein Koagulationsbad aus einem Gemisch des Lösungsmittels mit Wasser geführt wird, c) die Flüssigkeit von dem mit Koagulat beschichteten Trägermaterial abgepreßt wird, d) anschließend das Material mit Wasser gespült, erneut abgepreßt und getrocknet wird und e) gegebenenfalls zu Streifen geschnitten wird. 10. Grips according to claim 1 to 9, characterized in that a) a carrier material consisting of nonwoven, woven or knitted fabric with an extensibility in the transverse and / or longitudinal direction and / or diagonal direction of at least 10% each with a solution of polyurethanes, optionally with the addition of smaller amounts of further thermoplastic polymers, dissolved in a water-soluble solvent is soaked b) the impregnated material is passed through at least one coagulation bath from a mixture of the solvent with water, c) the liquid is pressed off from the carrier material coated with coagulate, d) then the material is rinsed with water, pressed again and dried and e) optionally cut into strips. 11. Griffbänder nach Anspruch 10, dadurch gekennzeichnet, daß als Lösungsmittel für das Imprägniermittel auf der Basis von Polyurethanen Dimethylformamid verwendet worden ist.11. Grips according to claim 10, characterized in that dimethylformamide has been used as a solvent for the impregnating agent based on polyurethanes. 12. Griffbänder nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß das mit der Imprägnierlösung auf der Basis von Polyurethanen getränkte Material zunächst durch ein erstes wäßriges Koagulationsbad mit höherem Lösungsmittelanteil und dann durch ein zweites wäßriges Koagulationsbad mit einem geringeren Lösungsmittelanteil geführt worden ist.12. Grip tapes according to claim 10 or 11, characterized in that the material impregnated with the impregnation solution based on polyurethanes has first been passed through a first aqueous coagulation bath with a higher solvent content and then through a second aqueous coagulation bath with a lower solvent content. 13. Griffbänder nach Anspruch 10 bis 12, dadurch gekennzeichnet, daß das Trägermaterial vor der Tränkung mit der Imprägnierlösung auf der Basis von Polyurethanen einer Vorbehandlung mit Alkalisierungsmitteln oder mit chlorierten Kohlenwasserstoffen unterzogen worden ist.13. Grip tapes according to claim 10 to 12, characterized in that the carrier material has been subjected to a pretreatment with alkalizing agents or with chlorinated hydrocarbons before impregnation with the impregnation solution based on polyurethanes. 14. Verfahren zur Herstellung von Griffbändern nach Anspruch 1 bis 13 auf der Basis von mit Kunststoff beschichteten Trägermaterialien, dadurch gekennzeichnet, daß a) ein aus Vlies, Gewebe oder Gewirke bestehendes Trägermaterial mit einer Dehnfähigkeit in Querrichtung und/oder Längsrichtung und/oder Diagonalrichtung von mindestens 10 % mit einer Lösung von Imprägniermittel auf der Basis von Polyurethanen, gelöst in einem wasserlöslichen Lösungsmittel, getränkt wird, b) das getränkte Material durch mindestens ein Koagulationsbad aus einem Gemisch des Lösungsmittels mit Wasser geführt wird, c) die Flüssigkeit von dem mit Koagulat beschichteten Trägermaterial abgepreßt wird, d) anschließend das Material mit Wasser gespült, erneut abgepreßt und getrocknet wird und e) gegebenenfalls zu Streifen geschnitten wird. 14. A method for producing handle tapes according to claim 1 to 13 on the basis of plastic-coated carrier materials, characterized in that a) a carrier material consisting of nonwoven, woven or knitted fabric with an extensibility in the transverse and / or longitudinal direction and / or diagonal direction of at least 10% is impregnated with a solution of impregnating agent based on polyurethanes, dissolved in a water-soluble solvent, b) the impregnated material is passed through at least one coagulation bath from a mixture of the solvent with water, c) the liquid is pressed off from the carrier material coated with coagulate, d) then the material is rinsed with water, pressed again and dried and e) optionally cut into strips. 15. Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß die Griffbänder an den Längskanten abgeschrägt werden.15. The method according to claim 14, characterized in that the grip tapes are chamfered on the longitudinal edges. 16. Verfahren nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß ein nach Stufe d) erhaltenes beschichtetes Gewebe im Winkel zu Kette- oder Schußrichtung des Gewebes unter Bildung eines Schrägbandes geschnitten wird.16. The method according to claim 14 or 15, characterized in that a coated fabric obtained after stage d) is cut at an angle to the warp or weft direction of the fabric to form a bias tape. 17. Verwendung der Griffbänder nach Anspruch 1 bis 13 zur Umhüllung von Sportgerätegriffen.17. Use of the grip tapes according to claim 1 to 13 for wrapping sports equipment handles.
EP85104611A 1984-04-19 1985-04-18 Gripping strips made of a substrate coated with a synthetic material Expired EP0161515B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85104611T ATE39140T1 (en) 1984-04-19 1985-04-18 GRIPS BASED ON PLASTIC COATED SUPPORT MATERIALS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843414978 DE3414978A1 (en) 1984-04-19 1984-04-19 HANDLEBANDS BASED ON CARTRIDGE MATERIALS COATED WITH PLASTIC
DE3414978 1984-04-19

Publications (2)

Publication Number Publication Date
EP0161515A1 true EP0161515A1 (en) 1985-11-21
EP0161515B1 EP0161515B1 (en) 1988-12-07

Family

ID=6234096

Family Applications (1)

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EP85104611A Expired EP0161515B1 (en) 1984-04-19 1985-04-18 Gripping strips made of a substrate coated with a synthetic material

Country Status (4)

Country Link
US (1) US4613537A (en)
EP (1) EP0161515B1 (en)
AT (1) ATE39140T1 (en)
DE (2) DE3414978A1 (en)

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Also Published As

Publication number Publication date
DE3566689D1 (en) 1989-01-12
ATE39140T1 (en) 1988-12-15
EP0161515B1 (en) 1988-12-07
DE3414978A1 (en) 1985-10-31
US4613537A (en) 1986-09-23

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