DE4016808A1 - Prodn. of multilayer adhesive film - by coating non-stick backing, drying, repeating coating and drying stages, and finally applying paper to pull complete coatings of backing - Google Patents
Prodn. of multilayer adhesive film - by coating non-stick backing, drying, repeating coating and drying stages, and finally applying paper to pull complete coatings of backingInfo
- Publication number
- DE4016808A1 DE4016808A1 DE4016808A DE4016808A DE4016808A1 DE 4016808 A1 DE4016808 A1 DE 4016808A1 DE 4016808 A DE4016808 A DE 4016808A DE 4016808 A DE4016808 A DE 4016808A DE 4016808 A1 DE4016808 A1 DE 4016808A1
- Authority
- DE
- Germany
- Prior art keywords
- backing
- drying
- coating
- psa
- prodn
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
- C09J2301/208—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von mehrschichtigen Haftklebefilmen, die sich zur Verwendung für selbstklebende Hochleistungsklebstoffartikel eignen.The invention relates to a method for producing multilayer pressure sensitive adhesive films that can be used for self-adhesive high-performance adhesive articles are suitable.
Es ist bekannt, daß herkömmliche Beschichtungsmethoden zur Herstellung von druckempfindlichen Haftklebeschichten einer Dicke oberhalb 0,2 mm, besonders aber oberhalb 0,6 mm, auf zahlreiche Schwierigkeiten stoßen. Bei der Beschichtung von lösemittelhaltigen Haftklebemassen bilden sich Lösemittel blasen, wodurch das fertige Produkt beeinträchtigt wird. Um diesen Effekt zu vermeiden, werden die dicken Haftklebe schichten durch mehrfaches Kaschieren aus einzelnen Haft klebefilmen hergestellt. Das erhaltene Produkt ist aber entweder zu teuer (unwirtschaftliche Herstellgeschwindig keit), oder es weist beim mehrfachen Kaschieren zu geringe Lösemittelbeständigkeit, zu geringe thermische Belastbarkeit und unakzeptable Spaltfestigkeit auf.It is known that conventional coating methods for Production of pressure sensitive adhesive layers one Thickness above 0.2 mm, but especially above 0.6 mm encounter numerous difficulties. When coating Solvent-containing PSAs form solvents blow, which affects the finished product. Around To avoid this effect, use the thick PSA layer by multiple layers of individual detention adhesive films made. The product obtained is however either too expensive (uneconomical manufacturing speed speed), or it shows too little when laminating several times Resistance to solvents, low thermal load capacity and unacceptable gap strength.
Die CA-PS 7 47 341 beschreibt druckempfindliche Klebestrei fen, wo eine dicke Haftklebeschicht durch Beschichtung eines Schaumstoffträgers erhalten wurde. Das schafft aber eine ganze Reihe von Problemen. Nachteilig ist dabei die Neigung des Schaumstoffs, Flüssigkeiten aufzusaugen.CA-PS 7 47 341 describes pressure-sensitive adhesive strips fen, where a thick layer of pressure sensitive adhesive by coating a Foam backing was obtained. But that creates one whole series of problems. The inclination is disadvantageous of the foam to absorb liquids.
Die US-PS 33 14 838 beschreibt die Verwendung von Glasmikro hohlkugeln zur Einstellung der Dicke der Haftklebeschicht. Derartige Haftklebebänder sind aber gegen Druck und Tempe ratur weitgehend empfindlich, da die Mikrohohlkugeln z. B. schon bei geringer Krafteinwirkung platzen.The US-PS 33 14 838 describes the use of glass micro hollow balls for adjusting the thickness of the adhesive layer. Such pressure sensitive adhesive tapes are against pressure and temperature rature largely sensitive, since the hollow microspheres z. B. burst with little force.
Aus der DE-PS 28 21 606 sind druckempfindliche Klebestreifen mit dicken Haftklebeschichten bekannt, die UV-durchlässige druckresistente Glasmikrohohlkugeln enthalten. Damit wird zwar eine gewisse Druckresistenz erreicht, jedoch weisen die Haftklebeschichten den Nachteil der mangelhaften inneren Festigkeit auf.From DE-PS 28 21 606 are pressure sensitive adhesive strips known with thick pressure sensitive adhesive layers that are UV-permeable pressure-resistant hollow glass microspheres included. So that will achieved a certain pressure resistance, but the Pressure sensitive adhesive layers have the disadvantage of poor internal Firmness on.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von mehrschichtigen Haftklebefilmen vorzuschla gen, die die erwähnten Nachteile nicht mehr aufweisen und die sich durch gute hochelastische Eigenschaften, thermische Belastbarkeit, Weichmacherbeständigkeit, Spaltfestigkeit und Lösemittelresistenz auszeichnen. Derartige mehrschichtige Haftklebefilme sind weitgehend blasenfrei, wobei die Be schichtungsgeschwindigkeit relativ hoch und damit die not wendige Rentabilität gewährleistet ist.The invention has for its object a method for To propose production of multilayer pressure sensitive adhesive films gene, which no longer have the disadvantages mentioned and which is characterized by good highly elastic properties, thermal Resilience, plasticizer resistance, splitting resistance and Characterize solvent resistance. Such multilayer PSA films are largely bubble-free, with the Be Layering speed relatively high and thus the need agile profitability is guaranteed.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren er reicht, bei dem unter Entzug der flüchtigen Bestandteile einer Haftklebemasse mittels Einwirkung von Wärme und/oder Anlegen von Unterdruck die auf die erste Schicht folgende Schichten unmittelbar auf der vorher gebildeten Schicht erzeugt werden. Dadurch wird insbesondere eine hohe Spalt festigkeit erzielt.According to the invention, this object is achieved by a method is enough for the removal of the volatile constituents a PSA by the action of heat and / or Applying the vacuum following the first layer Layers immediately on the previously formed layer be generated. In particular, this creates a large gap strength achieved.
Die verwendete Haftklebemasse kann entweder wasser- oder lösemittelhaltig sein.The PSA used can either be water or be solvent-based.
Gemäß einer bevorzugten Ausführungsform enthält die Haft klebemasse einen Vernetzer.According to a preferred embodiment, the detention contains adhesive a crosslinker.
Erfindungsgemäß ist es möglich, verschiedene, d. h. aus unter schiedlichen Materialien zusammengesetzte Schichten durch geeignete Beschickung der Beschichtungsvorrichtung aufzu bringen.According to the invention, it is possible to use different, i.e. H. from under different materials through composite layers suitable loading of the coating device bring.
Besonders vorteilhaft ist es, daß das erfindungsgemäße Ver fahren kontinuierlich ausgeführt werden kann.It is particularly advantageous that the Ver drive can be run continuously.
Dabei wird bevorzugt die erste Schicht auf einen Träger abgelegt, der aus einer nicht-klebend (dehäsiv) eingestell ten Folie oder einem silikonbeschichteten Papier besteht.The first layer is preferably on a support filed, which is set from a non-adhesive (dehesive) th film or a silicone-coated paper.
Die erfindungsgemäß hergestellten mehrschichtigen Haftklebe filme werden insbesondere zur Herstellung von temperatur- und lösemittelresistenten Hochleistungshaftklebeartikeln verwendet.The multilayer pressure sensitive adhesive produced according to the invention films are used in particular for the production of temperature and solvent-resistant high-performance pressure sensitive adhesive articles used.
Die Erfindung wird anhand der nachstehend dargestellten Figur erläutert, welche schematisch eine Vorrichtung zur Durchführung des Verfahrens zeigt:.The invention is illustrated by the following Figure explains which schematically a device for Implementation of the procedure shows:
Von einer Vorratsrolle (1) wird der Träger (2) (dehäsiv eingestellte Folie oder Silikonpapier) als Endlosvorrat abgezogen, einem ersten Auftragswerk (3) zugeführt, wo mit Haftklebemassen beschichtet wird. Die mit Haftklebemasse beschichtete Trägerfolie (4) durchläuft den Trockner (6), passiert als getrocknete Haftklebeschicht (5) die Umlenk walzen (7) und wird erneut zwecks Erzielung einer weiteren Schicht Haftkleber dem zweiten Auftragswerk (3) zugeführt. Nach Verlassen des Trockners wird auf den mehrschichtigen getrockneten Haftklebefilm ein Abdeckpapier (10) aufka schiert, das von der Vorratsrolle (9) abgezogen wird und an dem der mehrschichtige Haftklebefilm haftet, wobei der Haft klebefilm von dem dehäsiv ausgestatteten ursprünglichen Träger auf den endgültigen Träger übertragen wird. Hierauf wird das fertige Haftklebeband (11) auf der Aufwickelein richtung (12) aufgewickelt, während die ursprüngliche Träger folie (2) ebenfalls wieder aufgewickelt wird. Die Figur zeigt insgesamt sechs Auftragswerke mit der jeweils zuge hörigen Haftklebemassenzuführung (8), so daß sechs gleiche oder verschiedene Schichten erzeugt werden können.From a supply roll (1) of the carrier (2) (set dehesive sheet or silicone paper) is taken off as endless source, a first application unit (3) is supplied to where it is coated with pressure-sensitive adhesives. The carrier film ( 4 ) coated with pressure-sensitive adhesive passes through the dryer ( 6 ), passes through the deflection rollers ( 7 ) as a dried pressure-sensitive adhesive layer ( 5 ) and is again fed to the second application unit ( 3 ) in order to achieve a further layer of pressure-sensitive adhesive. After leaving the dryer, a cover paper ( 10 ) is sheared onto the multilayer dried PSA film, which is pulled off the supply roll ( 9 ) and to which the multilayer PSA film adheres, the PSA film being transferred from the original carrier provided with the adhesive to the final carrier becomes. The finished PSA tape ( 11 ) is then wound on the winding device ( 12 ), while the original carrier film ( 2 ) is also wound up again. The figure shows a total of six commissioned works, each with the associated PSA feed ( 8 ), so that six identical or different layers can be produced.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4016808A DE4016808A1 (en) | 1990-01-26 | 1990-05-25 | Prodn. of multilayer adhesive film - by coating non-stick backing, drying, repeating coating and drying stages, and finally applying paper to pull complete coatings of backing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4002283 | 1990-01-26 | ||
DE4016808A DE4016808A1 (en) | 1990-01-26 | 1990-05-25 | Prodn. of multilayer adhesive film - by coating non-stick backing, drying, repeating coating and drying stages, and finally applying paper to pull complete coatings of backing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4016808A1 true DE4016808A1 (en) | 1991-08-01 |
Family
ID=25889433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4016808A Withdrawn DE4016808A1 (en) | 1990-01-26 | 1990-05-25 | Prodn. of multilayer adhesive film - by coating non-stick backing, drying, repeating coating and drying stages, and finally applying paper to pull complete coatings of backing |
Country Status (1)
Country | Link |
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DE (1) | DE4016808A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996008367A2 (en) * | 1994-09-16 | 1996-03-21 | Avery Dennison Corporation | Multilayer pressure-sensitive adhesive construction |
US5688523A (en) * | 1995-03-31 | 1997-11-18 | Minnesota Mining And Manufacturing Company | Method of making a pressure sensitive skin adhesive sheet material |
US5827609A (en) * | 1995-06-07 | 1998-10-27 | Avery Dennison Corporation | Multilayer Pressure-sensitive adhesive construction |
US6548176B1 (en) * | 1997-04-03 | 2003-04-15 | The Board Of Trustees Of The Leland Stanford Junior University | Hydroxide-catalyzed bonding |
CN110397222A (en) * | 2019-07-18 | 2019-11-01 | 广东能辉新材料科技有限公司 | Composite roof waterproof roll and preparation method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2206916A1 (en) * | 1971-02-15 | 1972-10-05 | Kamlander, Ludwig, Dr., Wien | Self-adhesive tape - suitable for use on open pored surfaces |
-
1990
- 1990-05-25 DE DE4016808A patent/DE4016808A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2206916A1 (en) * | 1971-02-15 | 1972-10-05 | Kamlander, Ludwig, Dr., Wien | Self-adhesive tape - suitable for use on open pored surfaces |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996008367A2 (en) * | 1994-09-16 | 1996-03-21 | Avery Dennison Corporation | Multilayer pressure-sensitive adhesive construction |
WO1996008367A3 (en) * | 1994-09-16 | 1996-05-23 | Avery Dennison Corp | Multilayer pressure-sensitive adhesive construction |
AU703705B2 (en) * | 1994-09-16 | 1999-04-01 | Avery Dennison Corporation | Multilayer pressure-sensitive adhesive construction |
CN1090557C (en) * | 1994-09-16 | 2002-09-11 | 艾弗里丹尼森有限公司 | Structure of multilayer pressure-sensitive adhesive |
US5688523A (en) * | 1995-03-31 | 1997-11-18 | Minnesota Mining And Manufacturing Company | Method of making a pressure sensitive skin adhesive sheet material |
US5827609A (en) * | 1995-06-07 | 1998-10-27 | Avery Dennison Corporation | Multilayer Pressure-sensitive adhesive construction |
US6548176B1 (en) * | 1997-04-03 | 2003-04-15 | The Board Of Trustees Of The Leland Stanford Junior University | Hydroxide-catalyzed bonding |
CN110397222A (en) * | 2019-07-18 | 2019-11-01 | 广东能辉新材料科技有限公司 | Composite roof waterproof roll and preparation method thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8130 | Withdrawal |