DE4203338A1 - Transparent ethylene@-vinyl] acetate copolymer films - used as one-sided adhesive foils - Google Patents

Transparent ethylene@-vinyl] acetate copolymer films - used as one-sided adhesive foils

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Publication number
DE4203338A1
DE4203338A1 DE4203338A DE4203338A DE4203338A1 DE 4203338 A1 DE4203338 A1 DE 4203338A1 DE 4203338 A DE4203338 A DE 4203338A DE 4203338 A DE4203338 A DE 4203338A DE 4203338 A1 DE4203338 A1 DE 4203338A1
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DE
Germany
Prior art keywords
din
sided adhesive
vinyl acetate
paper
film
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Withdrawn
Application number
DE4203338A
Other languages
German (de)
Inventor
Juergen Dipl Chem Arnold
Robert Dipl Ing Richter
Bernhard Dipl Che Steinbrecher
Matthias Dipl Ing Langer
Dieter Dr Rer Nat Dipl Harzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IWA F Riehle GmbH and Co
Original Assignee
IWA F Riehle GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IWA F Riehle GmbH and Co filed Critical IWA F Riehle GmbH and Co
Priority to DE4203338A priority Critical patent/DE4203338A1/en
Publication of DE4203338A1 publication Critical patent/DE4203338A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • 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
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/414—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • 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
    • C09J2431/00—Presence of polyvinyl acetate

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Educational Technology (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Laminated Bodies (AREA)

Abstract

Transparent films (I) of EVAc copolymer contg. 25-35% vinylacetate are used as one-sided adhesive foils. The adhesiveness is controlled by the vinyl acetate-content. The average roughness Rz is 1-5 microns (DIN 4772), the tear strength 25-50 N/15mm (DIN 53 455) and the block strength 1.5-6 N/15mm at 23 deg.C (DIN 53 366). (I) is lined with silicone sepg. paper. The sepn. force film/paper is 0.3-1.0 N/5cm. USE/ADVANTAGE - (I) are used for planning tables and components. They have variable adhesiveness and are mfd. cheaply from an environmentally friendly plastic

Description

Die Erfindung betrifft die Verwendung von transparenten Folien aus Ethylen-Vinylacetat-Copolymeren mit einem Vinylacetat- Gehalt von 25 bis 35% für einseitig klebende Folien, insbesondere für Plantafeln und Planungselemente.The invention relates to the use of transparent films from ethylene-vinyl acetate copolymers with a vinyl acetate Content of 25 to 35% for single-sided adhesive films, especially for planning boards and planning elements.

Es ist bekannt, daß glatte Oberflächen aufgrund von Adhäsionskräften aneinander haften. Diesen Effekt nutzt man bspw. bei Planungstafeln und Planungselementen, auf die eine weiche Folie mit hoher Oberflächenglätte aufkaschiert ist, welche die Haftung durch Adhäsionskräfte bewirkt. Eine solche Verwendung ist in der DE-AS 26 24 960 beschrieben. It is known that smooth surfaces due to Adhesive forces stick together. One uses this effect For example, with planning boards and planning elements to which one soft film with high surface smoothness is laminated on, which causes adhesion through adhesive forces. Such Use is described in DE-AS 26 24 960.  

Die für diesen Zweck verwendeten Folien werden aus Polyvinylchlorid (Weich-PVC) hergestellt. Die Haftfestigkeit dieser Folien beruht im wesentlichen auf ihrer Oberflächenglätte, d. h. auf den Adhäsionskräften. Änderungen der chemischen Zusammensetzung haben einen geringen Einfluß auf die Haftfestigkeit, die somit nur schlecht variiert werden kann. Darüberhinaus ist der Einsatz von PVC aus Gesundheits- und Umweltschutzgründen bedenklich. Die dem PVC zugesetzten Weichmacher und Stabilisatoren können z. T. relativ leicht in die Umgebung migrieren und unter Umständen gesundheitsschädliche Wirkungen entfalten. Bei der Verarbeitung von PVC bei höheren Temperaturen oder im Falle eines Brandes kann Chlorwasserstoff entstehen, der stark ätzend wirkt. Daher ist PVC schwierig zu entsorgen oder wiederaufzuarbeiten.The foils used for this purpose are made from Polyvinyl chloride (soft PVC) manufactured. The adhesive strength of these foils is essentially based on theirs Surface smoothness, d. H. on the adhesive forces. Changes the chemical composition have little influence on the adhesive strength, which is therefore difficult to vary can. In addition, the use of PVC from health and environmental concerns. The added to the PVC Plasticizers and stabilizers can e.g. T. relatively easy in migrate the environment and possibly Develop harmful effects. In the Processing PVC at higher temperatures or in the event A fire can produce hydrogen chloride, which is strong corrosive. PVC is therefore difficult to dispose of or to recycle.

Die Aufgabe der vorliegenden Erfindung ist es daher, einseitig klebende Folien mit variierbarer Haftfestigkeit aus einem dafür geeigneten umweltfreundlichen Kunststoff kostengünstig herstellen.The object of the present invention is therefore one-sided adhesive films with variable adhesive strength from one suitable environmentally friendly plastic inexpensive produce.

Insbesondere wird angestrebt, PVC durch chlorfreie Kunststoffe zu ersetzen, die leichter zu verarbeiten und zu entsorgen sind. Polyäthylen- und Polypropylenfolien haben sich jedoch als ungeeignet erwiesen, da ihnen die nötige Haftfestigkeit fehlt. In particular, PVC is sought through chlorine-free plastics to replace the easier to process and dispose of are. However, polyethylene and polypropylene films have proven unsuitable because they have the necessary adhesive strength is missing.  

Die Lösung dieser Aufgabe besteht darin, daß Ethylen-Vinylacetat-Copolymere mit einem Vinylacetat-Gehalt von 25 bis 35% verwendet werden.The solution to this problem is that Ethylene-vinyl acetate copolymers with a vinyl acetate content from 25 to 35% can be used.

Diese EVA-Copolymere besitzen vorzugsweise eine Dichte von 0,95-0,96 Gramm/cm3 (DIN 53 479) und einen Schmelzindex von 10-30 Gramm/10 min bei 190°C und 21,6N (DIN 53 735).These EVA copolymers preferably have a density of 0.95-0.96 grams / cm 3 (DIN 53 479) and a melt index of 10-30 grams / 10 min at 190 ° C. and 21.6N (DIN 53 735).

Die aus EVA-Copolymeren hergestellten Folien sind vorzugsweise 0,18 bis 0,5 mm (DIN 53 53) dick und besitzen eine Oberflächenrauhigkeit mit einer mittlere Rauhheit Rz von 1 bis 5 µm (DIN 4772) sowie eine Reißkraft von 25-50 N/15 mm (DIN 53 455) und eine Blockkraft von 1,5-6 N/15 mm bei einer Prüftemperatur von 23°C (DIN 53 366).The films made from EVA copolymers are preferably 0.18 to 0.5 mm (DIN 53 53) thick and have a surface roughness with an average roughness R z of 1 to 5 µm (DIN 4772) and a tear strength of 25-50 N. / 15 mm (DIN 53 455) and a blocking force of 1.5-6 N / 15 mm at a test temperature of 23 ° C (DIN 53 366).

Folien aus diesem Material sind kostengünstig herzustellen, und aufgrund ihrer chemischen Zusammensetzung und ihrer physikalischen Eigenschaften sind sie ohne Zusatz von Weichmachern einfach zu verarbeiten und zu entsorgen.Films from this material are inexpensive to manufacture, and due to their chemical composition and their physical properties they are without the addition of Plasticizers easy to process and dispose of.

Die Haftfestigkeit solcher Folien aus EVA-Copolymeren beruht zum einen auf Adhäsionskräften, d. h. auf der Oberflächenglätte, und zum anderen auf polaren Wechelwirkungen der Vinylacetatreste. Durch die Variation des Vinylacetat- Anteils ist es daher möglich, die Haftfestigkeit gezielt zu variieren.The adhesive strength of such films made of EVA copolymers is based on one on adhesive forces, d. H. on the surface smoothness, and on the other hand on polar interactions of the vinyl acetate residues. By varying the vinyl acetate content it is therefore possible to vary the adhesive strength in a targeted manner.

Es besteht die Möglichkeit, die frisch extrudierte Folie zuerst auf ein trennkraftgeregeltes Papier, wie z. B. Silikon-Trennpapier aufzukaschieren. Dadurch ist die Folie bei der Herstellung zum Beispiel von Plantafeln formstabil und leichter handhabbar. Außerdem ergeben sich dadurch weitere Faktoren, mit denen die Haftfestigkeit der Folie beeinflußt werden kann. Dies ist insbesondere die Wahl des Trägermaterials. Die Trennkraft Folie/Papier beträgt 0,3-1,0 N/5 cm (DIN 53 357). Außerdem spielen die Bedingungen, unter denen die Folie extrudiert wird, sowie der Druck, die Temperatur und die Warenbahnführung beim Kaschieren des Trennpapiers eine Rolle.There is a possibility of the freshly extruded film first  on a release paper, such as B. Laminate silicone release paper. As a result, the film is the production of, for example, planning boards, dimensionally stable and easier to handle. This also results in more Factors that influence the adhesive strength of the film can be. This is especially the choice of the carrier material. The separation force between film and paper is 0.3-1.0 N / 5 cm (DIN 53 357). In addition, the conditions under which the Film is extruded, as well as the pressure, the temperature and the Web guide in the lamination of the release paper a role.

Die Herstellung einer solchen Folie wird im folgenden als Ausführungsbeispiel beschrieben.The production of such a film is in the following as Described embodiment.

Mittels eines Extruders wird ein handelsübliches EVA-Copolymer mit einem Vinylacetatgehalt von 33% einer Dichte von 0,95-0,96 g/cm3 (DIN 53 479) und einem Schmelzindex von 17-25 g/10 min über eine Breitschlitzdüse zu einer Flachfolie geformt. Der Extruder ist mit einer üblichen Polyolefinschnecke (D=32 mm, L=20 D) bestückt. Das Temperaturprofil im Extruder ist auf 120°C bis 170°C stetig steigend eingestellt. Die Temperatur an der Breitschlitzdüse beträgt 170°C. Der senkrecht aus der Düse austretende Film wird im Abstand von 100 mm zum Düsenmund auf ein Silikontrennpapier kaschiert (Haftkraft 0,6 N/5 cm DIN 53 357). Die Linienlast wird durch ein Kaschierwerk erzeugt und beträgt 30 N/cm. Der Umschlingungswinkel des Verbundes Folie/Papier um die Kaschierwalze (Durchmesser 200 mm) beträgt 200° bei einer Abzugsgeschwindigkeit von 4 m/min. Um die gewünschte Haftung zwischen Papier und Folie zu erhalten, wird die Kaschierwalze durch Wärmeträgeröl mit einer Vorlauftemperatur von 50°C erwärmt. Die Zuführung des Trennpapiers und die Abführung des Verbundes bis hin zur Aufwicklung erfolgen über diverse Leitwalzen.By means of an extruder, a commercially available EVA copolymer with a vinyl acetate content of 33%, a density of 0.95-0.96 g / cm 3 (DIN 53 479) and a melt index of 17-25 g / 10 min is converted into a via a slot die Flat film shaped. The extruder is equipped with a conventional polyolefin screw (D = 32 mm, L = 20 D). The temperature profile in the extruder is set at 120 ° C to 170 ° C, increasing continuously. The temperature at the slot die is 170 ° C. The film emerging vertically from the nozzle is laminated onto a silicone release paper at a distance of 100 mm from the nozzle mouth (adhesive force 0.6 N / 5 cm DIN 53 357). The line load is generated by a laminating unit and is 30 N / cm. The wrap angle of the film / paper composite around the laminating roller (diameter 200 mm) is 200 ° at a take-off speed of 4 m / min. In order to obtain the desired adhesion between paper and film, the laminating roller is heated by thermal oil with a flow temperature of 50 ° C. The release paper is fed in and the composite is removed right up to winding up via various guide rollers.

Die auf diese Weise hergestellte Folie besitzt eine Dicke von 0,235 mm (DIN 53 353), eine Oberflächenrauhigkeit mit einer mittleren Rauhheit Rz von 3,5 µm (DIN 4772), eine Reißkraft von 39 N/15 mm (DIN 53 455) und eine Blockkraft von 2 N/15 mm bei einer Prüftemperatur von 23°C (DIN 53 366).The film produced in this way has a thickness of 0.235 mm (DIN 53 353), a surface roughness with an average roughness R z of 3.5 µm (DIN 4772), a tear strength of 39 N / 15 mm (DIN 53 455) and a blocking force of 2 N / 15 mm at a test temperature of 23 ° C (DIN 53 366).

Claims (5)

1. Verwendung von transparenten Folien aus Ethylen-Vinylacetat- Copolymeren mit einem Vinylacetat-Gehalt von 25 bis 35% als einseitige klebende Folien, insbesondere für Plantafeln und Planungselemente.1. Use of transparent films made of ethylene-vinyl acetate Copolymers with a vinyl acetate content of 25 to 35% as one-sided adhesive films, especially for planning boards and Planning elements. 2. Verwendung von EVA-Folien nach Anspruch 1, dadurch gekennzeichnet, daß die Haftfestigkeit über den Vinylacetat- Gehalt kontrollierbar eingestellt ist.2. Use of EVA films according to claim 1, characterized characterized in that the adhesive strength over the vinyl acetate Salary is controlled. 3. Verwendung von EVA-Folien nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die mittlere Rauhheit Rz 1 bis 5 µm (DIN 4772), die Reißkraft 25-50 N/15 mm (DIN 53 455) und die Blockkraft 1,5-6 N/15 mm bei einer Prüftemperatur von 23°C (DIN 53 366) beträgt.3. Use of EVA films according to claim 1 or 2, characterized in that the average roughness R z 1 to 5 microns (DIN 4772), the tear strength 25-50 N / 15 mm (DIN 53 455) and the blocking force 1, 5-6 N / 15 mm at a test temperature of 23 ° C (DIN 53 366). 4. Verwendung von EVA-Folien nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die einseitig klebende Folie auf ein Silikon-Trennpapier aufkaschiert ist.4. Use of EVA films according to one of claims 1 to 3, characterized in that the one-sided adhesive film a silicone release paper is laminated on. 5. Verwendung von EVA-Folien nach Anspruch 4, dadurch gekennzeichnet, daß die Trennkraft Folie/Papier 0,3-1,0 N/5 cm (DIN 53 357) beträgt.5. Use of EVA films according to claim 4, characterized characterized that the separation force film / paper 0.3-1.0 N / 5 cm (DIN 53 357).
DE4203338A 1992-02-06 1992-02-06 Transparent ethylene@-vinyl] acetate copolymer films - used as one-sided adhesive foils Withdrawn DE4203338A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4203338A DE4203338A1 (en) 1992-02-06 1992-02-06 Transparent ethylene@-vinyl] acetate copolymer films - used as one-sided adhesive foils

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Application Number Priority Date Filing Date Title
DE4203338A DE4203338A1 (en) 1992-02-06 1992-02-06 Transparent ethylene@-vinyl] acetate copolymer films - used as one-sided adhesive foils

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DE4203338A1 true DE4203338A1 (en) 1993-08-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612889A1 (en) * 1996-03-30 1997-10-16 Ko Jong Taik Children's learning set
DE19715871C1 (en) * 1997-04-16 1998-06-10 Innoline Gmbh Ges Fuer Innovat Backing for graphic information with protective sheet
WO2001028755A1 (en) * 1999-10-15 2001-04-26 Trespaphan Gmbh Label made of polyolefin film
CN110016175A (en) * 2019-02-12 2019-07-16 广东浮动全球智能科技有限公司 A kind of multifunctional integrated foaming desk and its processing unit (plant) and processing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624960B1 (en) * 1976-04-27 1977-09-29 Harald Dipl-Ing Riehle USE OF A SINGLE-SIDED TRANSPARENT FILM

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624960B1 (en) * 1976-04-27 1977-09-29 Harald Dipl-Ing Riehle USE OF A SINGLE-SIDED TRANSPARENT FILM

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612889A1 (en) * 1996-03-30 1997-10-16 Ko Jong Taik Children's learning set
DE19715871C1 (en) * 1997-04-16 1998-06-10 Innoline Gmbh Ges Fuer Innovat Backing for graphic information with protective sheet
WO2001028755A1 (en) * 1999-10-15 2001-04-26 Trespaphan Gmbh Label made of polyolefin film
US6838042B1 (en) 1999-10-15 2005-01-04 Trespaphan Gmbh Label made of polyolefin film
CN110016175A (en) * 2019-02-12 2019-07-16 广东浮动全球智能科技有限公司 A kind of multifunctional integrated foaming desk and its processing unit (plant) and processing method

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