CH619644A5 - - Google Patents

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Publication number
CH619644A5
CH619644A5 CH738479A CH738479A CH619644A5 CH 619644 A5 CH619644 A5 CH 619644A5 CH 738479 A CH738479 A CH 738479A CH 738479 A CH738479 A CH 738479A CH 619644 A5 CH619644 A5 CH 619644A5
Authority
CH
Switzerland
Prior art keywords
sealing
heat
pvdc
sealing layer
layer combination
Prior art date
Application number
CH738479A
Other languages
German (de)
Inventor
Rudolf Hofer
Original Assignee
Schuepbach Ag
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 Schuepbach Ag filed Critical Schuepbach Ag
Priority to CH738479A priority Critical patent/CH619644A5/de
Priority to DE2932861A priority patent/DE2932861C2/en
Priority to EP80200586A priority patent/EP0024059B1/en
Priority to AT80200586T priority patent/ATE694T1/en
Priority to FI802037A priority patent/FI802037A/en
Priority to DK342080A priority patent/DK342080A/en
Publication of CH619644A5 publication Critical patent/CH619644A5/de

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Classifications

    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
    • 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
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/052—Forming heat-sealable coatings
    • 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
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • 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
    • C09J7/35—Heat-activated
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • 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
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • 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
    • B32B2377/00—Polyamides
    • 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
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • 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
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • 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
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2427/08—Homopolymers or copolymers of vinylidene chloride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0617—Polyalkenes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0625—Polyacrylic esters or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0635—Halogen-containing polymers, e.g. PVC
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
    • C09K2200/0667—Polyamides, polyimides

Description

619 644 619 644

Claims (3)

PATENTANSPRÜCHEPATENT CLAIMS 1. Siegelschichtkombination in Form einer Folie aus Polyamid 6 oder 6,6, die ein- oder beidseitig mit einer Haftschicht aus Polyvinylidenchlorid beschichtet ist, wobei die Haftschicht ganz oder teilweise mit einem Heisssiegellack aus einem Gemisch von mindestens einem Polymethacrylat-Copo-lymer und mindestens einem Polyvinyl-Copolymer versehen ist.1. Sealing layer combination in the form of a film made of polyamide 6 or 6.6, which is coated on one or both sides with an adhesive layer made of polyvinylidene chloride, the adhesive layer being completely or partially covered with a heat-sealing lacquer made of a mixture of at least one polymethacrylate copolymer and at least is provided with a polyvinyl copolymer. 2. Siegelschichtkombination nach Anspruch 1, dadurch gekennzeichnet, dass die Folie aus Polyamid 6 oder 6,6 auf ihrer freien, der Heisssiegellackierung abgewendeten Oberfläche mit einer Deckfolie aus Aluminium oder Papier kaschiert und/oder mit einer Aussenlackierung versehen ist.2. Sealing layer combination according to claim 1, characterized in that the film of polyamide 6 or 6.6 is laminated on its free surface facing away from the heat-seal coating with a cover film of aluminum or paper and/or is provided with an external coating. 3. Verwendung einer Siegelschichtkombination nach Anspruch 1 für die Herstellung oder zum Verschliessen von in der Siegelnaht aufreissbaren Form- oder Raumpackungen.3. Use of a sealing layer combination according to claim 1 for the production or for closing of shaped or space packs that can be torn open in the sealing seam. Die vorliegende Erfindung bezieht sich auf eine Siegelschichtkombination und auf deren Verwendung für die Herstellung oder zum Verschliessen von in der Siegelnaht aufreissbaren Form- oder Raumpackungen.The present invention relates to a sealing layer combination and its use for the production or for closing of shaped or spatial packages that can be torn open in the sealing seam. Es ist bekannt, z. B. aus der CH-PS 584 633, für Joghurtbecher, Quarkbecher und andere aufreissbaren Packungen Deckblätter in Form einer Aluminiumfolie, nachstehend als «Alufolie» bezeichnet, die einseitig mit einem Heisssiegellack auf Basis von PVC, Acryl- oder Methacrylsäureester oder einem Copolymer davon beschichtet sind, einzusetzen. Im allgemeinen liegt die Dicke solcher Alufolien im Bereich von 0,03-0,06 mm und das Beschichtungsgewicht mit dem Heisssiegellack im Bereich von 4—12 g/m2.It is known e.g. B. from CH-PS 584 633, for yoghurt pots, quark pots and other packs that can be torn open, cover sheets in the form of aluminum foil, hereinafter referred to as "aluminum foil", which is coated on one side with a heat-sealing lacquer based on PVC, acrylic or methacrylic acid ester or a copolymer thereof are to use. In general, the thickness of such aluminum foils is in the range of 0.03-0.06 mm and the coating weight with the heat-seal lacquer in the range of 4-12 g/m2. Als Bechermaterial für derartige Packungen gelangt vorwiegend Polystyrol oder ein Copolymer davon zum Einsatz.Polystyrene or a copolymer thereof is predominantly used as the cup material for such packs. Ein Nachteil solcher Deckblätter besteht darin, dass die Alufolie beim Aufreissen einreisst und ein ideales öffnen der Packung somit nicht möglich ist. Ein weiterer Nachteil ist die Gefahr von Schnittverletzungen an Zunge und Finger, insbesondere bei Kindern. In letzter Zeit wird auch der Verbrauch von Aluminium als Nachteil erachtet.A disadvantage of such cover sheets is that the aluminum foil tears when it is torn open, making it impossible to open the pack properly. Another disadvantage is the risk of cutting the tongue and fingers, especially in children. Recently, the consumption of aluminum is also considered a disadvantage. Es ist die Aufgabe der vorliegenden Erfindung, ein Versiegelungssystem zu schaffen, das diese Nachteile nicht aufweist, eine wesentliche Verbesserung des Aufreisskomfortes bietet und ausserdem ermöglicht, auf die Verwendung von Aluminium teilweise oder vollständig zu verzichten.It is the object of the present invention to create a sealing system that does not have these disadvantages, offers a significant improvement in the ease of tearing and also makes it possible to partially or completely dispense with the use of aluminum. Diese Aufgaben werden durch die im Patentanspruch 1 definierte Siegelschichtkombination gelöst.These tasks are solved by the combination of sealing layers defined in patent claim 1 . Mittels der erfindungsgemässen Siegelschichtkombination allein oder in Kombination mit einem Trägermaterial können handelsübliche Formpackungen aus PS oder PVC durch Heiss-siegelung verschlossen und leicht wieder geöffnet werden.By means of the sealing layer combination according to the invention, alone or in combination with a carrier material, commercially available form packs made of PS or PVC can be closed by heat sealing and easily opened again. In einer Ausführungsform ist die Folie aus PA 6 oder 6,6 auf ihrer freien, der Heisssiegellackierung abgewendeten Oberfläche mit einer Deckfolie aus Aluminium oder Papier kaschiert und/oder mit einer Aussenlackierung versehen. Für eine derartige, als Trägermaterial dienende Kaschierung gelangen vorzugsweise Aluminiumfolien einer Dicke im Bereich von 0,009-0,030 mm oder Papier mit einem Flächengewicht von 60 g/m2 zum Einsatz. Eine allfällige Aussenlackierung kann in Form eines Reklameaufdrucks und/oder als Schutzschicht einer Papierkaschierung gegen Witterungseinflüsse vorliegen.In one embodiment, the film made of PA 6 or 6.6 is laminated with a cover film made of aluminum or paper on its free surface facing away from the heat-seal coating and/or is provided with an external coating. Aluminum foils with a thickness in the range of 0.009-0.030 mm or paper with a basis weight of 60 g/m 2 are preferably used for such a lamination serving as a carrier material. Any external coating can be in the form of an advertising imprint and/or as a protective layer on a paper lamination against the effects of the weather. Die hier verwendete Bezeichnung «Siegelschichtkombination» soll zum Ausdruck bringen, dass die in vielen Versuchen ermittelte Kombination von PA 6 oder 6,6/PVDC/Gemisch von mindestens einem Polymethacrylat-Copolymer und mindestens einem Polyvinyl-Copolymer als Gesamtheit zu einer optimalen Versiegelung und Aufreissbarkeit einer verschlossenen Packung führt. Die beschriebene Reihenfolge der drei Schichten, nämlich PA 6 oder 6,6 als eigentliche Verschlussfolie, PVDC als Haftschicht und dem beschriebenen Heisssiegellack, der nachstehend auch als «Thermolack» bezeichnet wird, ist in der erfindungsgemässen Siegelschichtkombination unerlässlich. Es wird angenommen, dass alle drei Schichten untereinander und mit dem Bechermaterial bei der Heisssiegelung eine Reaktion, nämlich eine sogenannte Verschmelzung, eingehen. Der genaue Mechanismus dieses Vorgangs ist jedoch noch nicht restlos abgeklärt.The term "sealing layer combination" used here is intended to express that the combination of PA 6 or 6.6/PVDC/mixture of at least one polymethacrylate copolymer and at least one polyvinyl copolymer as a whole, which has been determined in many tests, results in optimal sealing and tearability a sealed pack. The sequence of the three layers described, namely PA 6 or 6.6 as the actual sealing film, PVDC as the adhesive layer and the heat-sealing lacquer described, which is also referred to below as "thermo lacquer", is essential in the sealing layer combination according to the invention. It is assumed that all three layers react with each other and with the cup material during heat sealing, namely a so-called fusion. However, the exact mechanism of this process has not yet been fully clarified. Neben dem bereits erwähnten Vorteil, dass die beschriebene Siegelschichtkombination allein oder in Kombination mit einem Trägermaterial als Verschlussmaterial zum Einsatz gelangen kann, weist die Siegelschichtkombination die weiteren Vorteile auf, dass sie in einem weiten Temperaturbereich heissgesiegelt werden kann und dass die Schnittverletzungsgefahr ausgeschaltet ist.In addition to the already mentioned advantage that the sealing layer combination described can be used alone or in combination with a carrier material as a closure material, the sealing layer combination has the further advantages that it can be heat-sealed in a wide temperature range and that the risk of cuts is eliminated. Die Herstellung der Siegelschichtkombination kann auf bekannte Art unter Einsatz der üblichen Lackier- und Kaschiermaschinen erfolgen. Mit PVDC beschichtetes PA 6 oder 6,6 ist im Handel, jedoch für andere Verwendungszwecke, erhältlich. Falls die Herstellung von Grund auf erfolgt, ist es zweckmässig und empfehlenswert, die Beschichtung der Folie aus PA 6 oder 6,6 mit dem als Haftschicht wirkenden PVDC im Zuge der Folienherstellung vorzunehmen. Die Lackierung mit dem Thermolack kann dann zu einem späteren Zeitpunkt erfolgen, wobei der Thermolack auch partiell, d. h. nur in den heisszusiegelnden Zonen, aufgetragen werden kann.The sealing layer combination can be produced in a known manner using the usual lacquering and laminating machines. PA 6 or 6.6 coated with PVDC is commercially available but for other uses. If the production takes place from scratch, it is useful and advisable to coat the film made of PA 6 or 6.6 with the PVDC, which acts as an adhesive layer, during the production of the film. The painting with the thermal paint can then take place at a later point in time, the thermal paint also partially, d. H. only in the zones to be heat-sealed. Das als Heisssiegel- bzw. Thermolack zum Einsatz gelangende, an und für sich bekannte Gemisch kann eines oder mehrere Copolymere von Methacrylat und Vinyl enthalten.The mixture, which is known per se and is used as a heat-sealing or thermal lacquer, can contain one or more copolymers of methacrylate and vinyl. Nachstehend sind beispielsweise Ausführungsformen der erfindungsgemässen Siegelschichtkombination angeführt,Exemplary embodiments of the sealing layer combination according to the invention are given below, wobei für die Polyamidfolie sowohl PA 6 wie auch PA 6,6 verwendet werden kann, wovon jedoch PA 6 bevorzugt wird.Both PA 6 and PA 6.6 can be used for the polyamide film, although PA 6 is preferred. Beispiele a) Aussenlackierung / Alufolie 15 /<m / PA 20/zm / PVDC 4 g/m2 / Thermolack 4 g/m2Examples a) Exterior paintwork / aluminum foil 15 /<m / PA 20/zm / PVDC 4 g/m2 / thermal paint 4 g/m2 b) Aussenlackierung / Papier 60 g/m2 / PA 20//m / PVDC 4 g/m2 / Thermolack 4 g/m2b) Exterior paint / paper 60 g/m2 / PA 20//m / PVDC 4 g/m2 / thermal paint 4 g/m2 c) Aussenlackierung / PA 40 fim / PVDC 4 g/m2 / Thermolack 4 g/m2c) Exterior paintwork / PA 40 fim / PVDC 4 g/m2 / thermal paint 4 g/m2 d) Aussenlackierung / Zellglas / PA 20 /im / PVDC 4 g/m2 / Thermolack 4 g/m2d) Exterior paint / cellophane / PA 20 /im / PVDC 4 g/m2 / thermal paint 4 g/m2 22 55 1010 ISIS 2020 2525 3030 3535 4040 4545 5050 5555 SS
CH738479A 1979-08-10 1979-08-10 CH619644A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH738479A CH619644A5 (en) 1979-08-10 1979-08-10
DE2932861A DE2932861C2 (en) 1979-08-10 1979-08-14 Heat sealable polyamide film with two coatings
EP80200586A EP0024059B1 (en) 1979-08-10 1980-06-20 Heat sealable composite sheet and its use
AT80200586T ATE694T1 (en) 1979-08-10 1980-06-20 FOIL-FORM HEAT SEAL LAYER COMBINATION AND THEIR USE.
FI802037A FI802037A (en) 1979-08-10 1980-06-25 FOLIOARTAD HETSTAENGARESKIKTKOMBINATION
DK342080A DK342080A (en) 1979-08-10 1980-08-08 FOIL SHAPE HEALY SEALABLE LAMINATE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH738479A CH619644A5 (en) 1979-08-10 1979-08-10
DE2932861A DE2932861C2 (en) 1979-08-10 1979-08-14 Heat sealable polyamide film with two coatings

Publications (1)

Publication Number Publication Date
CH619644A5 true CH619644A5 (en) 1980-10-15

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Application Number Title Priority Date Filing Date
CH738479A CH619644A5 (en) 1979-08-10 1979-08-10

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CH (1) CH619644A5 (en)
DE (1) DE2932861C2 (en)

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Publication number Priority date Publication date Assignee Title
DE3009007C2 (en) * 1980-03-08 1985-08-14 Scheuch Folien- und Papierverarbeitung GmbH & Co KG, 6109 Mühltal Method and cover film for closing glass and plastic containers
IT1279499B1 (en) * 1990-10-12 1997-12-16 Amb Imballaggi Plastici SEALANT FILM FOR POLYSTYRENE CONTAINERS AND RELATED PROCEDURE FOR OBTAINING

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Publication number Priority date Publication date Assignee Title
DE2427489A1 (en) * 1974-06-07 1975-12-18 Hoechst Ag FILM COATED WITH POLYVINYLIDEN CHLORIDE

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DE2932861A1 (en) 1981-02-26
DE2932861C2 (en) 1982-10-07

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