DE10132196A1 - Perforated thermoplastic compound material comprises at least one first layer and at least one second layer which are joined to one another at least in parts and are jointly perforated - Google Patents
Perforated thermoplastic compound material comprises at least one first layer and at least one second layer which are joined to one another at least in parts and are jointly perforatedInfo
- Publication number
- DE10132196A1 DE10132196A1 DE10132196A DE10132196A DE10132196A1 DE 10132196 A1 DE10132196 A1 DE 10132196A1 DE 10132196 A DE10132196 A DE 10132196A DE 10132196 A DE10132196 A DE 10132196A DE 10132196 A1 DE10132196 A1 DE 10132196A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- roller
- perforation
- perforated
- partially
- 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
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/027—Thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/24—Perforating by needles or pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
- B29C65/7435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
- B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
- B29C66/73116—Melting point of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
- B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/047—Perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2398/00—Unspecified macromolecular compounds
- B32B2398/20—Thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein perforiertes Laminat mit zumindest einer ersten und einer zweiten Lage sowie ein Herstellungsverfahren und ein Produkt. The present invention relates to a perforated laminate with at least one first and a second layer as well as a manufacturing process and a product.
Ein perforiertes Material geht beispielsweise aus der EP 0 472 992 B1 hervor. Dort wird ein Vlies beschrieben, dass einen erhöhten Oberflächenbereich mit einer Öffnung aufweist. Die Öffnung wird mittels einer Walze mit einer Mehrzahl unerwärmter Stifte und einer dazu gegenüberliegenden Walze mit einer Mehrzahl entsprechender Öffnungen erzeugt. Die Fasern des Vlieses neben der Öffnung sollen im wesentlichen unverfestigt sein. Dadurch sollen die Fasern beweglich bleiben, weswegen sie bei entsprechender Druckbeaufschlagung die Öffnung auch wieder verschließen können. A perforated material is evident, for example, from EP 0 472 992 B1. There will a fleece described that has an elevated surface area with an opening having. The opening is made using a roller with a plurality of unheated pins and an opposite roller with a plurality of corresponding Openings created. The fibers of the fleece next to the opening are said to be essentially to be unsolidified. This should keep the fibers mobile, which is why they are appropriate pressure can also close the opening again.
Die vorliegende Erfindung hat nun zur Aufgabe, eine perforierte thermoplastische Struktur mit einer dreidimensionalen Gestalt zu schaffen, die über eine gewisse Druckunempfindlichkeit in Bezug auf ihre Gestalt verfügt. The present invention has for its object a perforated thermoplastic To create structure with a three-dimensional shape that has a certain Pressure insensitivity in terms of their shape.
Diese Aufgabe wird mit einer perforierten thermoplastischen Struktur mit den Merkmalen des Anspruches 1, mit einem Verfahren zur Herstellung eines perforierten Laminates mit den Merkmalen des Anspruches 7, mit einem Produkt mit den Merkmalen des Anspruches 11 und einer Perforierungsvorrichtung mit den Merkmalen des Anspruchs 12 oder 13 gelöst. Vorteilhafte Weiterbildungen sind in den jeweiligen Unteransprüchen angegeben, wobei weitere Ausgestaltungen in der nachfolgenden Beschreibung beschrieben sind. This task comes with a perforated thermoplastic structure with the features of claim 1, with a method for producing a perforated laminate the features of claim 7, with a product with the features of Claim 11 and a perforation device with the features of the claim 12 or 13 solved. Advantageous further developments are in the respective subclaims indicated, with further refinements in the following description are described.
Die Erfindung weist eine perforierte thermoplastische Struktur mit zumindest einer ersten Lage und mit einer Vielzahl von Perforationen auf. Die Perforationen erstrecken sich durch die erste Lage, wobei die Perforationen eine dreidimensionale, vorzugsweise etwa kegelförmige oder zylinderförmige Gestalt aufweisen. Mit der ersten Lage ist zumindest eine zweite Lage zumindest teilweise verbunden. Die Perforationen erstrecken sich auch durch die zweite Lage. Die zweite Lage bildet eine Innenfläche der Gestalt, während die erste Lage eine Außenfläche der Gestalt bildet. Die erste Lage weist weiterhin ein thermoplastisches Material auf, dessen Schmelzpunkt niedriger ist als der Schmelzpunkt des thermoplastischen Materials der zweiten Lage. The invention has a perforated thermoplastic structure with at least a first Location and with a variety of perforations. The perforations extend through the first layer, the perforations being three-dimensional, preferably approximately have a conical or cylindrical shape. At least with the first layer a second layer at least partially connected. The perforations extend also through the second layer. The second layer forms an inner surface of the shape, while the first layer forms an outer surface of the shape. The first layer points continue to have a thermoplastic material whose melting point is lower than that Melting point of the second layer thermoplastic material.
Vorzugsweise ist die erste Lage zumindest teilweise im Bereich der Perforationen geschmolzen und stabilisiert dadurch die Gestalt. Eine Weiterbildung sieht vor, dass die zweite Lage im Bereich der Perforierung zumindest weitestgehend ungeschmolzen ist. Gemäß einer anderen Ausgestaltung ist vorgesehen, dass die zweite Lage im Bereich der Perforierung vollständig ungeschmolzen ist. The first layer is preferably at least partially in the area of the perforations melted and thereby stabilizes the shape. Further training provides that the second layer in the area of the perforation is at least largely unmelted. According to another embodiment it is provided that the second layer in the area the perforation is completely unmelted.
Eine bleibende Verformung der perforierten Struktur aufgrund einer mechanischen Einwirkung zur Erzeugung der perforierten Struktur erfolgt daher durch eine entsprechende Temperatureinwirkung. Die Temperatureinwirkung wird vorzugsweise gleichzeitig mit dem Umformungsvorgang von einer unperforierten zu einer perforierten Struktur verbunden. Beispielsweise kann dieses mittels eines Kalanders erfolgen, der zumindest eine erste und eine zweite Walze aufweist. Die erste Walze weist vorzugsweise eine Positivstruktur auf, die insbesondere in eine Negativstruktur der zweiten Walze eingreift. Bei Hindurchführung einer Struktur durch diesen Kalander erfolgt ein Umformungsvorgang. Werden gleichzeitig die Positivstrukturen, damit also Erhebungen von einer Oberfläche der ersten Walze, beheizt, so dass das thermoplastische Material der ersten Lage beeinflusst wird, während das thermoplastische Material der zweiten Lage vorzugsweise weitestgehend unbeeinflusst bleibt, gelingt es, die Gestalt zu stabilisieren. A permanent deformation of the perforated structure due to a mechanical Action to create the perforated structure is therefore carried out by a corresponding temperature influence. The temperature effect is preferred simultaneously with the forming process from an imperforate to a perforated one Structure connected. For example, this can be done using a calender that has at least a first and a second roller. The first roller points preferably a positive structure, which in particular in a negative structure engages second roller. When a structure is passed through this calender there is a forming process. At the same time become the positive structures, that is Elevations from a surface of the first roller, heated so that the thermoplastic material of the first layer is affected while that thermoplastic material of the second layer preferably largely unaffected remains, the shape can be stabilized.
Die Auswahl unterschiedlicher Schmelzpunkte von unterschiedlichen thermoplastischen Materialien erlaubt, den jeweiligen Lagen unterschiedliche Eigenschaften zuzuweisen. Vorzugsweise bildet die zweite Lage, die möglichst unbeeinflusst von dem Energieeintrag beim Umformvorgang ist, in einem Produkt zumindest teilweise eine Außenfläche. Die Schmelztemperatur der zweiten Lage ist insbesondere so gewählt, dass Oberflächeneigenschaften in der zweiten Lage möglichst unverändert bleiben. Dieses ist insbesondere im Hinblick auf Verwendung von Fasern, insbesondere Vliesfasern, beispielsweise in der Anwendung für Hygieneprodukte, aber auch bei Industrieprodukten und Bekleidungsprodukten von Bedeutung. So liegt ein verhärtetes Material vorzugsweise in der ersten Lage vor, während die zweite Lage vom Energieeintrag unbeeinflusst bleibt und damit eine unveränderte Weichheit besitzt. Neben einem Energieeintrag während des Umformvorganges besteht weiterhin die Möglichkeit, den Energieeintrag im Anschluss an den Umformvorgang durchzuführen. Beispielsweise ist dieses mittels Ultraschall, Wärmestrahlung oder auch durch chemische Reaktionen möglich. Letzteres erfolgt beispielsweise durch ein Aufbringen einer Chemikalie, ein Aktivieren einer Chemikalie oder ein Herauslösen einer Chemikalie aus der ersten Lage, wodurch eine zumindest partielle Verhärtung des thermoplastischen Materials der ersten Lage erfolgt. Beispielsweise wird dazu zumindest im Bereich der Perforierungen vorzugsweise über eine Sprüheinrichtung ein Verhärtungsmittel direkt auf die erste Lage aufgetragen. Die zweite Lage bleibt davon im wesentlichen unbeeinflusst. Ein Auftrag des Mittels kann vor oder auch nach dem Umformvorgang erfolgen. Choosing different melting points from different thermoplastic Materials allow different properties to be assigned to the respective layers. The second layer preferably forms the one that is as unaffected as possible by the Energy input during the forming process is at least partially one in a product Outer surface. The melting temperature of the second layer is chosen in particular that surface properties remain as unchanged as possible in the second layer. This is particularly with regard to the use of fibers, in particular Nonwoven fibers, for example for use in hygiene products, but also for Industrial products and clothing products of importance. So lies a hardened one Material preferably in the first layer, while the second layer from Energy input remains unaffected and thus has an unchanged softness. In addition to an energy input during the forming process, there is also Possibility to carry out the energy input after the forming process. For example, this is by means of ultrasound, heat radiation or chemical reactions possible. The latter is done, for example, by application a chemical, activating a chemical, or releasing a chemical from the first layer, whereby an at least partial hardening of the thermoplastic material of the first layer. For example, this will at least in the area of the perforations, preferably via a spray device Apply hardening agent directly to the first layer. The second layer remains in the essentially unaffected. The agent can be applied before or after Forming process take place.
Gemäß einer weiteren Ausgestaltung kann auch ein Mittel zwischen die erste und die zweite Lage aufgetragen werden. Während des Umformvorganges wird beispielsweise Energie der Struktur zugeführt, wodurch das Mittel chemisch reagiert, z. B. bei Latex, und/oder physikalisch reagiert, z. B. Hotmelt. Die Reaktion führt vorzugsweise zu einem Aushärten des Mittels selbst, wodurch die erste und die zweite Lage stabilisiert werden. Weiterhin kann das Mittel so geartet sein, dass es als Kleber dient. Dadurch wird nicht nur der unmittelbar um die Perforation herum liegende Bereich, sondern auch der übrige Bereich der Struktur stabilisiert. According to a further embodiment, a means between the first and the second layer can be applied. During the forming process, for example Energy supplied to the structure, whereby the agent reacts chemically, e.g. B. with latex, and / or reacts physically, e.g. B. Hot melt. The reaction preferably results in one Curing of the agent itself, thereby stabilizing the first and second layers. Furthermore, the agent can be such that it serves as an adhesive. This will not only the area immediately around the perforation, but also the rest Area of structure stabilized.
Beispiele für vorteilhafte thermoplastische Materialkombinationen ergeben sich aus der
nachfolgenden Tabelle:
Examples of advantageous thermoplastic material combinations are shown in the table below:
Getestet wurden Flächengewichte wie folgt:
Weights were tested as follows:
Vorzugsweise hat die erste Lage ein Flächengewicht, das höher ist als das Flächengewicht der zweiten Lage. Preferably, the first layer has a basis weight that is higher than that Basis weight of the second layer.
Versuchergebnisse waren wie folgt:
Test results were as follows:
Muster A ist ein Spinnvlies aus PP und dient als Vergleichsmaterial. Muster B weist in der zweiten Lage ein Spinnvlies und in der ersten Lage ein cardiertes Bico-Material auf. Muster C weist in der zweiten Lage ein Spinnvlies und in der ersten Lage ein cardiertes Material auf. Muster D weist in der zweiten Lage ein BICO-Spinnvlies und in der ersten Lage ein kardiertes Bico-Vlies auf. Muster E weist in der zweiten Lage ein HDPE- Spinnvlies und in der ersten Lageein kardiertes Bico-Material auf. Alle Muster waren vor der Perforierung jeweils als einzelne Lage bondiert. Pattern A is a spunbond made of PP and serves as a reference material. Pattern B shows in a spunbonded fabric in the second layer and carded bico material in the first layer. Pattern C has a spunbond in the second layer and a carded one in the first layer Material on. Pattern D has a BICO spunbond in the second layer and in the first Lay a carded bico fleece on. Pattern E has an HDPE in the second layer Spunbond and in the first layer a carded bico material. All patterns were before the perforation is bonded as a single layer.
Wie insbesondere der Vergleich zwischen der gemessenen und der theoretischen offenen Fläche sowie vorzugsweise das Verhältnis der Lochgröße MD/CD zeigt, gelingt es auch, besonders runde Öffnungen der Perforierungen zu stabilisieren. Die Lochdurchmesser betragen in MD zwischen 1 und 1,8 mm und in CD zwischen 0,8 und 1,7 mm. Like in particular the comparison between the measured and the theoretical open area and preferably shows the ratio of the hole size MD / CD, succeed it is also to stabilize particularly round openings in the perforations. The Hole diameters in MD are between 1 and 1.8 mm and in CD between 0.8 and 1.7 mm.
Einen weiteren Einfluß auf die Lochgrößen hat die Geschwindigkeit, mit der die Struktur durch die Perforierungseinrichtung hindurchläuft. Die Struktur wurde mit Geschwindigkeiten zwischen 5 m/s bis zu 130 m/s hindurchgeführt. Als vorteilhaft haben sich Geschwindigkeiten zwischen 45 m/s und 120 m/s, insbesondere zwischen 60 m/s und 95 m/s zur Herstellung einer stabilen Perforierung herausgestellt. Bei Lochdurchmessern, die sich in einem Bereich von unter 0,5 mm bewegen, ist eine höhere Betriebsgeschwindigkeit einstellbar. Hier sind Geschwindigkeiten bis 200 m/s einstellbar, vorzugsweise Geschwindigkeiten über 150 m/s. Die Lochdurchmesser sind beispielsweise dann in einem Bereich zwischen 0,5 und 0,1 mm. Die Perforierungswalze weist je nach Material vorzugsweise eine Temperatur zwischen etwa 100° und 160°C an einem Walzengrund auf. Eine Öltemperatur bei der Beheizung wird beispielsweise zwischen 135°C und 180°C eingestellt, während die Gegenwalze vorzugsweise eine Temperatur zwischen 45°C und 95°C, insbesondere zwischen 55°C und 75°C hat. The speed with which the structure has a further influence on the hole sizes runs through the perforation device. The structure was built with Speeds between 5 m / s up to 130 m / s. Have an advantage speeds between 45 m / s and 120 m / s, in particular between 60 m / s and 95 m / s to produce a stable perforation. at Hole diameters in a range of less than 0.5 mm is one higher operating speed adjustable. Here are speeds up to 200 m / s adjustable, preferably speeds over 150 m / s. The hole diameters are for example in a range between 0.5 and 0.1 mm. The Depending on the material, the perforating roller preferably has a temperature of between approximately 100 ° and 160 ° C on a roller base. An oil temperature when heating set between 135 ° C and 180 ° C, for example, while the counter roller preferably a temperature between 45 ° C and 95 ° C, in particular between 55 ° C and has 75 ° C.
Gemäß einem weiteren Gedanken weist eine Perforierungseinrichtung eine Zuführung für eine zu perforierende Struktur auf, die so angeordnet ist, dass die Struktur über einen Umschlingungswinkel von über 120°, vorzugsweise über 150° entlang der Gegenwalze geführt wird, bevor eine Perforierung durchführbar ist. Dadurch gelingt es insbesondere, dass bei einer erwärmten Gegenwalze die Struktur angewärmt der Perforierungswalze zugeführt wird. Darüber hinaus wird aufgrund der Umschlingung eine Spannung im Material, das sich in Kontakt mit der Gegenwalze befindet, abgesenkt. Dadurch gelingt eine besonders stabile Perforierung. According to a further idea, a perforation device has a feed for a structure to be perforated, which is arranged so that the structure over a wrap angle of over 120 °, preferably over 150 ° along the Counter roll is performed before perforation can be performed. This is how it works in particular that the structure warms the structure of a heated counter roll Perforating roller is fed. In addition, due to the wrapping a tension in the material that is in contact with the counter roll, lowered. This creates a particularly stable perforation.
Gemäß einer weiteren Ausbildung weist die Gegenwalze eine Beschichtung auf, vorzugsweise eine Gummierung. Die Beschichtung ist insbesondere zwischen 1,5 mm und 15 mm dick, insbesondere mindestens 4 mm. Die Erhebungen der Perforierungswalze können in die Beschichtung eingreifen. Vorzugsweise greifen diese in eine Tiefe von etwa 2,5 bis etwa 6 mm ein. According to a further embodiment, the counter roll has a coating, preferably a rubber coating. The coating is in particular between 1.5 mm and 15 mm thick, in particular at least 4 mm. The surveys of the Perforating roller can engage in the coating. These preferably take effect to a depth of about 2.5 to about 6 mm.
Eine zweilagige zu perforierende Struktur wird gemäß einer Ausgestaltung in einem integrierten Herstellungsverfahren produziert. Beispielsweise wird bei einer Vliesherstellung eine Spinnvliesmaschine mit einem oder mehreren Balken zur Verfügung gestellt. Mittels eines der Balken wird beispielsweise eine Polymer-Mischung mit niedrigem Schmelzpunkt und mittels eines zweiten Balkens ein BICO PP/PE-Vlies hergestellt. Weiterhin kann auch auf ein vorgefertigtes Material eine zweite Lage aufgebracht und dann anschließend perforiert werden. Weiterhin besteht die Möglichkeit, die erste und die zweite Lage inline herzustellen und in einem davon getrennten Arbeitsvorgang zu perforieren. Wie am Beispiel von Vliesstoff dargestellt, besteht weiterhin die Möglichkeit, Kombinationen von Film und Vliesstoff zu verwenden. Beispielsweise kann ein Film auf ein beispielsweise kardiertes Vlies extrudiert werden und anschließend einer Perforierungseinheit zugeführt werden. According to one embodiment, a two-layer structure to be perforated is made into one integrated manufacturing process. For example, a Nonwoven fabrication a spunbonding machine with one or more beams for Provided. A polymer mixture is used, for example, by means of one of the bars with a low melting point and a BICO PP / PE fleece using a second bar manufactured. Furthermore, a second layer can also be made on a prefabricated material applied and then perforated. Furthermore, the Possibility to manufacture the first and second layers inline and in one of them perforate separate operation. As shown in the example of nonwoven, it is still possible to use combinations of film and nonwoven. For example, a film can be extruded onto a carded nonwoven, for example and then fed to a perforation unit.
Wird gemäß einer Ausgestaltung ein Vliesmaterial als erste Lage verwendet, gelingt es dadurch, dass Vliesfasern partiell angeschmolzen werden können und auf diese Weise die Geometrie der Gestalt stabilisieren. Die Vliesfasern können dabei beispielsweise zumindest teilweise ihre Form verlieren. Gemäß einer weiteren Ausgestaltung behalten die Vliesfasern zum überwiegenden Teil ihre Form und werden adhäsiv. Gemäß einer weiteren Ausgestaltung sind die Fasern der ersten Lage zumindest teilweise mit Fasern eines Vlieses der zweiten Lage vermengt, insbesondere in Form eines Ineinandergreifens. Während beispielsweise zwei getrennt voneinander hergestellte Vlieslagen zwischen sich eine Materialgrenze aufweisen können, weisen die beiden zum Teil miteinander vermengten Vlieslagen einen Materialübergang auf. Außerhalb des Materialüberganges weisen die eine wie die andere Lage jeweils nur ein thermoplastisches Material auf. Ein derartiger Aufbau wird insbesondere mittels eines Inlineverfahrens hergestellt. Vorzugsweise weist die perforierte Struktur einen Phasenübergang oder gemäß einer weiteren Ausgestaltung eine beispielsweise vollständige Vermischung der Fasern zumindest teilweise im Bereich der Perforierung auf. Vorzugsweise werden die erste und die zweite Lage auf gleiche Weise hergestellt. Beide Lagen sind beispielsweise extrudierte Vliese, die auf der gleichen Maschine hergestellt werden. Auch besteht die Möglichkeit, unterschiedliche Materialien mit jeweils unterschiedlichen Eigenschaften zu einer perforierten Struktur bilden zu können. Während das eine Vlies PP zumindest zum überwiegenden Teil aufweist, ist das andere Vlies zum überwiegenden Teil aus HDPE oder DAPP bestehend. Darüber hinaus bestehen Kombinationsmöglichkeiten von verschiedenen Herstellungsweisen von Vliesen, insbesondere Verwendung von hochvoluminösen Stapelfaservliesen mit Spinnvliesen oder auch schmelzgeblasenes Vlies mit Spinnvlies sowie weitere Kombinationen. If, according to one embodiment, a nonwoven material is used as the first layer, it succeeds in that nonwoven fibers can be partially melted and in this way stabilize the geometry of the shape. The fleece fibers can, for example at least partially lose their shape. According to a further embodiment, keep the fleece fibers mostly their shape and become adhesive. According to one In another embodiment, the fibers of the first layer are at least partially with fibers a fleece of the second layer blended, in particular in the form of a Mesh. For example, while two are manufactured separately Nonwoven layers can have a material boundary between them, the two point to Part of the nonwoven layers mixed with one another on a material transfer. Outside of One and the other layer only show material transfer thermoplastic material. Such a structure is in particular by means of a Made inline. The perforated structure preferably has one Phase transition or, for example, according to a further embodiment complete mixing of the fibers at least partially in the area of the perforation on. The first and second layers are preferably produced in the same way. Both layers are, for example, extruded nonwovens that are on the same machine getting produced. There is also the possibility of using different materials to be able to form different properties to form a perforated structure. While one of them has at least a predominant part of PP, the other is Nonwoven mainly consists of HDPE or DAPP. Furthermore there are combinations of different production methods of Nonwovens, in particular the use of high-volume staple fiber nonwovens Spunbonded or meltblown nonwoven with spunbonded and others Combinations.
Gemäß einer weiteren Ausgestaltung ist die erste Lage mit einer dritten Lage verbunden. Die dritte Lage weist ein thermoplastisches Material auf, dessen Schmelzpunkt höher ist als der Schmelzpunkt des thermoplastischen Materials der ersten Lage. Dadurch gelingt es, eine Art "Sandwich" zu produzieren, wobei die mittlere Lage für die Stabilität der in den drei Lagen vorhandenen dreidimensionalen Gestalt sorgt. According to a further embodiment, the first layer has a third layer connected. The third layer has a thermoplastic material, the Melting point is higher than the melting point of the thermoplastic material first location. This makes it possible to produce a kind of "sandwich", the middle one Position for the stability of the three-dimensional shape present in the three layers provides.
Gemäß einem weiteren Gedanken der Erfindung wird ein Verfahren zur Herstellung eines perforierten Laminates zur Verfügung gestellt, welches zumindest eine erste und eine zweite Lage aufweist. Ein thermoplastisches Material der ersten Lage weist einen niedrigeren Schmelzpunkt auf als das thermoplastische Material der zweiten Lage. Die erste und die zweite Lage werden zusammen in einen Perforierkalander geführt, wobei im Perforierkalander Erhebungen von einer Kalanderwalze, vorzugsweise zumindest nadelähnliche Vorsprünge, die erste und die zweite Lage durchdringen und die Erhebungen vorzugsweise beheizt sind, wobei die zweite Lage vor der ersten Lage mit den Erhebungen in Kontakt kommt. According to a further idea of the invention there is provided a method of manufacture a perforated laminate is provided, which at least a first and has a second layer. A thermoplastic material of the first layer has one lower melting point than the thermoplastic material of the second layer. The the first and the second layer are guided together in a perforating calender, whereby Elevations from a calender roll in the perforating calender, preferably at least needle-like protrusions penetrate the first and second layers and the Elevations are preferably heated, with the second layer in front of the first layer comes into contact with the surveys.
Gemäß einer Weiterbildung wird durch den Kontakt mit den Erhebungen die zweite Lage nicht angeschmolzen, während die erste Lage zumindest teilweise klebrig wird. Gemäß einem weiteren Verfahren wird die zweite Lage in einem ungeschmolzenen Zustand durch den Kalander geführt, während die erste Lage jedoch zumindest teilweise schmilzt. Gemäß einer Weiterbildung kann jedoch auch vorgesehen werden, dass die Temperatur bzw. der Energieeintrag so hoch ist, dass das thermoplastische Material der ersten Lage zumindest teilweise die Ursprungsgestalt verliert und bei Abkühlung wieder verfestigt wird. Bei entsprechender Temperatureinstellung besteht weiterhin die Möglichkeit, dass Filamente in der ersten Lage angeschmolzen werden und dabei ihre Filamentgestalt bewahren. According to one development, contact with the surveys makes the second Layer not melted, while the first layer becomes at least partially sticky. According to another method, the second layer is unmelted Condition led by the calender, but at least partially during the first layer melts. According to a further development, however, it can also be provided that the Temperature or the energy input is so high that the thermoplastic material the first layer at least partially loses its original shape and when it cools down again is solidified. With the appropriate temperature setting, the Possibility that filaments are melted in the first layer and theirs Preserve filament shape.
Weitere vorteilhafte Merkmale, Ausgestaltungen sowie Weiterbildungen werden anhand der nachfolgenden Zeichnung näher erläutert. Die dort beschriebenen Merkmale sind mit den oben beschriebenen zu weiteren Ausführungen kombinierbar. Es zeigen Further advantageous features, refinements and developments are based on the following drawing explained. The features described there are can be combined with the ones described above for further designs. Show it
Fig. 1 eine erste Perforierungseinrichtung, bei der eine zu perforierende Struktur direkt auf eine Perforierungswalze zugeführt wird, Fig. 1 shows a first perforation, in which a structure is fed to be perforated on a perforating roll,
Fig. 2 eine zweite Perforierungseinrichtung, bei der die zu perforierende Struktur zuerst auf eine umlaufende Walze aufgebracht wird, Fig. 2 shows a second perforation at which the penetrating structure is applied to first to a planetary roller,
Fig. 3 eine weitere Perforierungseinrichtung und Fig. 3 shows another perforation device and
Fig. 4, 5 einen Prinzipablauf einer Perforierung Fig. 4, 5 shows a basic flow of a perforation
Fig. 1 zeigt eine Perforierungseinrichtung 1 mit einer Perforierungswalze 2. Der Perforierungswalze 2 gegenüber ist eine Gegenwalze 3 angeordnet. Versetzt dazu befindet sich eine weitere, dritte Walze 4. Erhebungen 5, die sich von der Perforierungswalze 2 erstrecken, greifen in die Gegenwalze 3 sowie in die dritte Walze 4 zumindest teilweise ein. Die Perforierungswalze 2, die Gegenwalze 3 und die dritte Walze 4 bilden einen Perforierkalander 6. Eine Umdrehungsgeschwindigkeit der Walzen ist über entsprechende Getriebe bzw. Steuerung von Elektromotoren einstellbar. In den Perforierkalander 6 wird eine thermoplastische Struktur 7 eingeführt. Die thermoplastische Struktur ist ein flächiges Gebilde, was gemäß dieser Ausgestaltung eine erste Lage 8 und eine zweite Lage 9 aufweist. Die erste Lage 8 wie auch die zweite Lage 9 werden in diesem Falle jeweils von einem Abwickler 10 dem Perforierkalander 6 zugeführt. Zuvor jedoch werden die erste Lage 8 und die zweite Lage 9 zusammen über eine Spreizwalze 11 geführt. Durch die Zusammenführung beider Lagen 8, 9 mittels der Spreizwalze 11 gelingt es, dass beide Lagen 8, 9 vollflächig ohne Faltenbildung aufeinander zum Liegen zu kommen. Um die thermoplastische Struktur 7 unter Spannung zu setzen, weist die Perforierungseinrichtung 1 desweiteren gemäß dieser Ausgestaltung zumindest eine Umlenkrolle 12 auf. So wie hier dargestellt, ist die Umlenkrolle 12 von der Spreizwalze 11 unabhängig. Es besteht jedoch auch die Möglichkeit, die Materialspannung über eine Kombination von Umlenkrolle und Spreizwalze zu erzielen, indem die erste Lage 8 und die zweite Lage 9 über die Spreizwalze 11 direkt in den Perforierkalander 6 geführt werden. Die thermoplastische Struktur 7 wird in der Perforierungseinrichtung 1 zumindest teilweise erhitzt. In diesem Falle wird thermische Energie mittels eines Heißluftgebläses 13 in die Struktur 7eingebracht. Das Heißluftgebläse 13 ist in unmittelbarer Nachbarschaft zum Perforierkalander 6 angebracht. Vorzugsweise wird das Heißluftgebläse 13 unmittelbar zur Perforierungswalze 2 angeordnet. Eine Temperatur des aus dem Heißluftgebläse 13 entströmenden aufgeheizten Mediums ist an die Erweichungstemperatur des thermoplastischen Materials der ersten Lage angepasst. Gemäß einer Ausgestaltung ist das Medium zumindest annähernd auf diese Temperatur aufgeheizt. Gemäß einer Weiterbildung hat das Medium eine derartige Temperatur, dass die erste Lage auf eine Temperatur zwischen der Erweichungstemperatur des thermoplastischen Materials der ersten Lage und der Erweichungstemperatur des thermoplastischen Materials der zweiten Lage aufgeheizt wird. Ein derartiger Temperaturbereich für die zu perforierende Struktur wird vorzugsweise auch bei anderen Energieeinbringungsmethoden gewählt. Entscheidend dabei ist diejenige Temperatur, die das thermoplastische Material der ersten Lage wahrnimmt. Aufgrund von Energieverlusten beispielsweise bei Austritt aus dem Heißluftgebläse 13 bis zum Auftreffen auf die Struktur 7 und Weitergabe der Energie an die erste Lage 8, kann das Medium auf eine höhere Temperatur eingestellt werden. Entsprechendes gilt beispielsweise auch bei einer Aufheizung der Erhebungen 5 der Perforierungswalze 2 oder auch bei anderen Energieeinbringungsmöglichkeiten. Fig. 1 shows a perforating device with a perforating roll 1. 2 The perforating roll 2 is positioned opposite a backing roll. 3 Another third roller 4 is offset from this. Elevations 5 , which extend from the perforating roller 2 , engage at least partially in the counter roller 3 and in the third roller 4 . The perforating roller 2 , the counter roller 3 and the third roller 4 form a perforating calender 6 . A speed of rotation of the rollers can be adjusted via a corresponding gear or control of electric motors. A thermoplastic structure 7 is introduced into the perforating calender 6 . The thermoplastic structure is a flat structure, which according to this embodiment has a first layer 8 and a second layer 9 . In this case, the first layer 8 and also the second layer 9 are each fed to the perforating calender 6 by an unwinder 10 . Before that, however, the first layer 8 and the second layer 9 are guided together via an expansion roller 11 . By merging the two layers 8 , 9 by means of the spreading roller 11 , it is possible for the two layers 8 , 9 to come to rest on one another over the entire area without wrinkling. In order to put the thermoplastic structure 7 under tension, the perforation device 1 also has at least one deflection roller 12 according to this embodiment. As shown here, the deflection roller 12 is independent of the spreading roller 11 . However, there is also the possibility of achieving the material tension via a combination of deflection roller and spreading roller, in that the first layer 8 and the second layer 9 are guided directly into the perforating calender 6 via the spreading roller 11 . The thermoplastic structure 7 is at least partially heated in the perforation device 1 . In this case, thermal energy is introduced into the structure 7 by means of a hot air blower 13 . The hot air blower 13 is mounted in the immediate vicinity of the perforating calender 6 . The hot air blower 13 is preferably arranged directly in relation to the perforation roller 2 . A temperature of the heated medium flowing out of the hot air blower 13 is adapted to the softening temperature of the thermoplastic material of the first layer. According to one embodiment, the medium is at least approximately heated to this temperature. According to a development, the medium has a temperature such that the first layer is heated to a temperature between the softening temperature of the thermoplastic material of the first layer and the softening temperature of the thermoplastic material of the second layer. Such a temperature range for the structure to be perforated is preferably also selected for other energy input methods. The decisive factor here is the temperature that the thermoplastic material perceives in the first layer. Due to energy losses, for example when the hot air blower 13 exits until it strikes the structure 7 and the energy is passed on to the first layer 8 , the medium can be set to a higher temperature. The same applies, for example, when the elevations 5 of the perforating roller 2 are heated or when other energy input options are used.
Die in Fig. 1 dargestellte Gegenwalze 3 weist vorzugsweise an ihrer Oberfläche Öffnungen 14 auf, die sich in die Gegenwalze 3 erstrecken. Die Öffnungen 14 entsprechen in ihren Abmessungen in etwa den Erhebungen 5 der Perforierungswalze 2. Die Öffnungen 14 können Rundlöcher, längliche Löcher oder aber auch Kanäle sein, wie sie beispielsweise durch Bildung von Stegen auf der Oberfläche der Gegenwalze 3 entstehen. Durch das Zusammenspiel der Perforierungswalze 2 mit der Gegenwalze 3 wird die thermoplastische Struktur 7 perforiert. Die perforierte thermoplastische Struktur 7 wird entlang der Gegenwalze 3 weiter zur dritten Walze 4 geführt, wobei vorzugsweise die thermoplastische Struktur 7 gekühlt wird. Durch das Ineinandergreifen der Gegenwalze 3 mit der dritten Walze 4 wird die thermoplastische perforierte Struktur 7 auf der dritten Walze 4 abgelegt, von dort zu einer Umlenkrolle 12 geführt, von der die perforierte thermoplastische Struktur 7 wiederum zu einer Spreizwalze 11 gelangt. Von der Spreizwalze 11 gelangt die thermoplastische Struktur 7 zu einem Aufwickler 15. Ein Aufwickeln der perforierten Struktur 7 erfolgt unter einer gewissen Spannung, die über die Umlenkrolle 12 wie auch die Spreizwalze 11 einstellbar ist. Insbesondere erfolgt eine Anpassung der Spannung in Abhängigkeit von der Geschwindigkeit, mit der die Struktur 7 zum Aufwickler 15 gelangt. Die Spreizwalze 11 sorgt dafür, dass eine Faltenbildung beim Aufwickeln unterbleibt. Gleichzeitig wird die Spannung so eingestellt, dass ein Auseinanderziehen und damit Zerstören der dreidimensionalen Gestalt unterbleibt. Die auf diese Weise hergestellte dreidimensionale Gestalt lässt sich mit höheren Spannungen aufwickeln gegenüber einer thermoplastischen Struktur 7, die nicht verschmolzen ist. The counter-roller 3 shown in FIG. 1 preferably has openings 14 on its surface which extend into the counter-roller 3 . The dimensions of the openings 14 correspond approximately to the elevations 5 of the perforating roller 2 . The openings 14 can be round holes, elongated holes or else channels, such as those formed by the formation of webs on the surface of the counter-roller 3 . The interaction of the perforation roller 2 with the counter roller 3 perforates the thermoplastic structure 7 . The perforated thermoplastic structure 7 is guided along the counter roller 3 to the third roller 4 , the thermoplastic structure 7 preferably being cooled. The intermeshing of the mating roller 3 with the third roller 4 places the thermoplastic perforated structure 7 on the third roller 4 , from there it leads to a deflection roller 12 , from which the perforated thermoplastic structure 7 in turn arrives at an expansion roller 11 . The thermoplastic structure 7 passes from the spreading roller 11 to a rewinder 15 . The perforated structure 7 is wound up under a certain tension, which can be adjusted via the deflection roller 12 as well as the spreading roller 11 . In particular, the tension is adjusted as a function of the speed at which the structure 7 reaches the rewinder 15 . The spreading roller 11 ensures that there is no wrinkling during winding. At the same time, the tension is adjusted so that the three-dimensional shape is not pulled apart and thus destroyed. The three-dimensional shape produced in this way can be wound up with higher tensions than a thermoplastic structure 7 which is not fused.
Wie aus Fig. 1 hervorgeht, werden vorgefertigte Lagen zusammengeführt und anschließend aufgewickelt. Die durch die Perforierung erzielte Verbindung der ersten mit der zweiten Lage genügt, um das Material mittels des Aufwicklers 15 für eine Weiterverarbeitung zu lagern, ohne dass die Gefahr besteht, dass beide Lagen 8, 9 sich wieder voneinander trennen. Gemäß einer hier nicht näher dargestellten Weiterbildung besteht jedoch die Möglichkeit, eine Struktur zu verwenden, die vor und/oder nach der Perforierung auf übliche, im Stand der Technik bekannte Weise, miteinander zumindest teilweise verbunden werden. As is apparent from Fig. 1, prefabricated layers are brought together and then wound up. The connection of the first to the second layer achieved by the perforation is sufficient to store the material by means of the winder 15 for further processing without the risk that the two layers 8 , 9 separate again. According to a further development, not shown here, however, it is possible to use a structure that is at least partially connected to one another before and / or after the perforation in the usual manner known in the prior art.
Fig. 2 zeigt eine zu Fig. 1 ähnliche zweite Perforierungseinrichtung 16, die wiederum einen Perforierkalander 6 aufweist. Auch hier wird von Abwicklern 10 eine thermoplastische Struktur 7 perforiert und mittels eines Aufwicklers 15 aufgerollt. Im Unterschied zu der ersten Perforierungseinrichtung 1 wird bei der zweiten Perforierungseinrichtung 16 jedoch die erste Lage 8 und die zweite Lage 9 zuerst auf die Gegenwalze 3 geführt, dort mittels des Heißluftgebläses 13 erhitzt und erst anschließend zur Perforierungswalze 2 geführt. Eine in der thermoplastischen Struktur 7 einzustellende Materialspannung wird damit über die Umdrehungsgeschwindigkeit der Gegenwalze 3 und der jeweiligen Abwicklergeschwindigkeit für die erste bzw. zweite Lage 8, 9 geregelt. Das Aufbringen auf die Gegenwalze 3 ermöglicht weiterhin, dass die in die erste Lage 8 einzubringende Energie über die zweite Lage 9 eingebracht werden kann, ohne dass die erste Lage 8 direkt mit dem Medium in Kontakt treten muss. Weiterhin weist der Perforierungskalander 6 eine der Perforierungswalze 2 nachgeordnete Umlenkrolle 17 auf. Die Umlenkrolle 17 ist vorzugsweise so angeordnet, dass die perforierte Struktur 7 unter Spannung von der Perforierungswalze 2 wie auch der dritten Walze 4 zuerst einmal weggeführt wird, bevor die Struktur 7 wieder auf die dritte Walze 4 zugeführt wird. Die Umlenkrolle 17 ist insbesondere für Materialbreiten von > 500 mm vorteilhaft. Hierbei kann der Perforierungskalander 6 noch um eine Spreizwalze ergänzt werden, die beide hier jedoch nicht näher dargestellt sind. FIG. 2 shows a second perforation device 16 similar to FIG. 1, which in turn has a perforation calender 6 . Here, too, a thermoplastic structure 7 is perforated by unwinders 10 and rolled up by means of a rewinder 15 . In contrast to the first perforation device 1 , however, in the second perforation device 16 the first layer 8 and the second layer 9 are first guided onto the counter-roller 3 , heated there by means of the hot-air blower 13 and only then led to the perforation roller 2 . A material tension to be set in the thermoplastic structure 7 is thus regulated via the rotational speed of the counter-roller 3 and the respective unwinder speed for the first or second layer 8 , 9 . The application to the counter roller 3 further enables the energy to be introduced into the first layer 8 to be introduced via the second layer 9 without the first layer 8 having to come into direct contact with the medium. Furthermore, the perforation calender 6 has a deflection roller 17 arranged downstream of the perforation roller 2 . The deflection roller 17 is preferably arranged such that the perforated structure 7 is first led away under tension from the perforation roller 2 and also from the third roller 4 , before the structure 7 is fed back onto the third roller 4 . The deflection roller 17 is particularly advantageous for material widths of> 500 mm. Here, the perforation calender 6 can be supplemented by an expanding roller, both of which are not shown here, however.
Die in Fig. 1 wie Fig. 2 dargestellten Perforierungseinrichtungen 1, 2 weisen 3 Walzen auf, die den Perforierkalander 6 bilden. Die Anordnung der Walzen zueinander ist wie dargestellt so, dass deren Walzenmittelpunkte in etwa auf einer Geraden angeordnet sind. Jedoch können die Walzen auch zueinander versetzt angeordnet sein, das bedeutet, in einem Winkel zwischen vorzugsweise 160° und 40°. Die Perforierungseinrichtungen 1, 2 können weiterhin zusätzliche Vorrichtungen wie Sprühanlagen, Ultraschallvorrichtungen, Messeinrichtungen umfassen. The perforating means 1, 2 shown in Fig. 1 as shown in Fig. 2 comprise rollers 3 which form the perforation calender. 6 As shown, the arrangement of the rollers with respect to one another is such that their roller centers are arranged approximately on a straight line. However, the rollers can also be arranged offset from one another, that is to say at an angle between preferably 160 ° and 40 °. The perforation devices 1 , 2 can further comprise additional devices such as spraying systems, ultrasound devices, measuring devices.
Fig. 3 zeigt eine dritte Perforierungseinrichtung 19, bei der der Perforierungskalander 6 nur eine Gegenwalze 3 und eine Perforierungswalze 2 aufweist. Die Struktur 7 wird zuerst auf die Gegenwalze 3 aufgebracht, wobei sie dort entlang eines Umschlingungswinkels verbleibt, der wie hier dargestellt, vorzugsweise größer 180° ist, insbesondere in einem Bereich zwischen 190° und 220° FIG. 3 shows a third perforation device 19 , in which the perforation calender 6 has only one counter roll 3 and one perforation roll 2 . The structure 7 is first applied to the counter roll 3 , where it remains along a wrap angle which, as shown here, is preferably greater than 180 °, in particular in a range between 190 ° and 220 °
Fig. 4 und Fig. 5 zeigen den Vorgang einer Perforierung einer thermoplastische Struktur 7 mit einer ersten Lage 8 und einer zweiten Lage 9 in schematischer Ansicht. Während die erste Lage 8 zumindest im Bereich der Perforation zumindest teilweise angeschmolzen, vorzugsweise zumindest teilweise vollständig geschmolzen ist, bewahrt die zweite Lage 9 ihre Form. Dadurch gelingt eine Stabilisierung einer durch Perforation gebildeten dreidimensionalen Gestalt 18, wobei die erste Lage 8 eine Außenfläche 21 der Gestalt 18 bildet, während die zweite Lage 9 eine Innenfläche 20 der Gestalt 18 bildet. FIGS. 4 and Fig. 5 show the process of perforating a thermoplastic structure 7 at a first position 8 and a second position 9 in a schematic view. While the first layer 8 is at least partially melted, preferably at least partially completely melted, at least in the area of the perforation, the second layer 9 retains its shape. A three-dimensional shape 18 formed by perforation is thereby stabilized, the first layer 8 forming an outer surface 21 of the shape 18 , while the second layer 9 forms an inner surface 20 of the shape 18 .
Beispiele für eine Anwendung des Laminats bzw. der Struktur in einem Produkt sind Hygieneartikel, Sanitär- und Haushaltsartikel, insbesondere Wischtücher, medizinische Produkte, Oberflächenanwendungen bei Produkten, Filtermaterialien, Schutzbekleidungen, Geotextilien, Wegwerfprodukte. Examples of an application of the laminate or the structure in a product are Hygiene articles, sanitary and household articles, in particular wipes, medical Products, surface applications for products, filter materials, Protective clothing, geotextiles, disposable products.
Claims (16)
zumindest einer ersten Lage (8) und
mit einer Vielzahl von Perforationen, die sich durch die erste Lage (8) erstrecken, wobei die Perforationen eine dreidimensionale, vorzugsweise etwa kegelförmige oder zylinderförmige Gestalt (18) aufweisen,
dadurch gekennzeichnet, dass
zumindest eine zweite Lage (9) mit der ersten Lage (8) zumindest teilweise verbunden ist,
die Perforationen sich auch durch die zweite Lage (9) erstrecken,
die zweite Lage (9) eine Innenfläche (20) der Gestalt (18) bildet, während die erste Lage (8) eine Außenfläche (21) der Gestalt (18) bildet und
die erste Lage (8) ein thermoplastisches Material aufweist, dessen Schmelzpunkt niedriger ist als ein Schmelzpunkt des thermoplastischen Materials der zweiten Lage (9). 1. Perforated thermoplastic structure ( 7 ) with
at least a first layer ( 8 ) and
with a plurality of perforations which extend through the first layer ( 8 ), the perforations having a three-dimensional, preferably approximately conical or cylindrical shape ( 18 ),
characterized in that
at least a second layer ( 9 ) is at least partially connected to the first layer ( 8 ),
the perforations also extend through the second layer ( 9 ),
the second layer ( 9 ) forms an inner surface ( 20 ) of the shape ( 18 ), while the first layer ( 8 ) forms an outer surface ( 21 ) of the shape ( 18 ) and
the first layer ( 8 ) has a thermoplastic material whose melting point is lower than a melting point of the thermoplastic material of the second layer ( 9 ).
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DE10132196A DE10132196B4 (en) | 2001-07-03 | 2001-07-03 | A method of making a product having a perforated thermoplastic structure and perforating means for carrying out the method |
DE20121445U DE20121445U1 (en) | 2001-07-03 | 2001-07-03 | Perforated laminate |
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DE10132196A DE10132196B4 (en) | 2001-07-03 | 2001-07-03 | A method of making a product having a perforated thermoplastic structure and perforating means for carrying out the method |
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DE10132196A1 true DE10132196A1 (en) | 2003-01-30 |
DE10132196B4 DE10132196B4 (en) | 2009-05-07 |
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DE10132196A Expired - Fee Related DE10132196B4 (en) | 2001-07-03 | 2001-07-03 | A method of making a product having a perforated thermoplastic structure and perforating means for carrying out the method |
DE20121445U Expired - Lifetime DE20121445U1 (en) | 2001-07-03 | 2001-07-03 | Perforated laminate |
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DE20121445U Expired - Lifetime DE20121445U1 (en) | 2001-07-03 | 2001-07-03 | Perforated laminate |
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WO2006115574A2 (en) * | 2005-04-27 | 2006-11-02 | Kimberly-Clark Worldwide, Inc. | Method and device for multi -roll bonding and a diaper obtainable by said method |
WO2007057866A2 (en) * | 2005-11-17 | 2007-05-24 | The Procter & Gamble Company | Improved cleaning substrate |
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DE102007063784B3 (en) * | 2007-04-18 | 2013-06-27 | Abts- Advanced Bag Technology & Service Gmbh | Flexible building material bag e.g. cement bag, has laminate comprising layers connected with each other, and inner and outer layers permeable to air, where laminate is permeable to air, and is perforated |
DE102007063783B3 (en) * | 2007-04-18 | 2013-06-27 | Abts- Advanced Bag Technology & Service Gmbh | Flexible building material bag e.g. cement bag, has laminate comprising layers connected with each other, and inner and outer layers permeable to air, where laminate is permeable to air, and is perforated |
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EP2599738A3 (en) * | 2004-01-19 | 2014-06-18 | Winstore Europe B.V. | Method for producing container parts, container parts, method for producing a multilayer foil, multilayer foil. |
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DE102007063784B3 (en) * | 2007-04-18 | 2013-06-27 | Abts- Advanced Bag Technology & Service Gmbh | Flexible building material bag e.g. cement bag, has laminate comprising layers connected with each other, and inner and outer layers permeable to air, where laminate is permeable to air, and is perforated |
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CN102245358B (en) * | 2008-12-15 | 2015-04-08 | 屈德加薄膜产品股份有限公司 | Forming screens |
Also Published As
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DE20121445U1 (en) | 2002-10-17 |
DE10132196B4 (en) | 2009-05-07 |
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