EP0050794B2 - Feuille de laque transférable et procédé pour sa fabrication - Google Patents

Feuille de laque transférable et procédé pour sa fabrication Download PDF

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Publication number
EP0050794B2
EP0050794B2 EP81108299A EP81108299A EP0050794B2 EP 0050794 B2 EP0050794 B2 EP 0050794B2 EP 81108299 A EP81108299 A EP 81108299A EP 81108299 A EP81108299 A EP 81108299A EP 0050794 B2 EP0050794 B2 EP 0050794B2
Authority
EP
European Patent Office
Prior art keywords
layer
lacquer
adhesive
paint
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.)
Expired
Application number
EP81108299A
Other languages
German (de)
English (en)
Other versions
EP0050794A1 (fr
EP0050794B1 (fr
Inventor
Hubertus Martinus De Vroom
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.)
Nordipa AG
Original Assignee
Nordipa 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
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Application filed by Nordipa AG filed Critical Nordipa AG
Priority to AT81108299T priority Critical patent/ATE7461T1/de
Publication of EP0050794A1 publication Critical patent/EP0050794A1/fr
Application granted granted Critical
Publication of EP0050794B1 publication Critical patent/EP0050794B1/fr
Publication of EP0050794B2 publication Critical patent/EP0050794B2/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1733—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive adhesive
    • B44C1/1737—Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff on a substrate unsuitable for direct deposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1733—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive adhesive
    • B44C1/1741—Decalcomanias provided with a layer being specially adapted to facilitate their release from a temporary carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/914—Transfer or decalcomania
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/2486—Intermediate layer is discontinuous or differential with outer strippable or release layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2843—Web or sheet containing structurally defined element or component and having an adhesive outermost layer including a primer layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31554—Next to second layer of polyamidoester
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31801—Of wax or waxy material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers

Definitions

  • the invention relates to a method for producing a transferable lacquer film according to the preamble of patent claim 1.
  • Paint films for touching up paint on motor vehicles and processes for their production are known (GB-PS 12 32 971).
  • a carrier film is provided on which a solution layer consisting of 23 parts of nitrocellulose, 80 parts of solvents, 2 parts of plasticizer and 10 parts of alkyd resin is applied.
  • a nitrocellulose lacquer is applied to this layer, which in turn is provided with a customary pressure-sensitive adhesive after drying.
  • the lacquer film produced in this way can be cut out accordingly and brought with the adhesive side down over a damaged lacquer spot on the motor vehicle and stuck on under pressure.
  • the carrier film is then peeled off.
  • So-called tracing materials (NL-PS 123 093) are also known, which consist of a transparent or transparent carrier film, on which characters are printed so that they can be traced using the screen printing process. Such signs are only suitable for indoor applications, such as for labeling drawings or advertising material.
  • transfer materials are also known (US Pat. No. 3,516,904) with which printing inks can be transferred in a label-like manner, for example to plastic containers.
  • a carrier for example on a suitable paper
  • this transfer material of which the release layer adjacent to the carrier is a wax layer melting under the action of heat (at 80 ° to 125 ° C.).
  • a primer layer, a printing layer and an adhesive layer are then applied to this wax layer. Under pressure and heat, the printing layer with its primer layer can be detached from the support and can adhere to the surface to be printed.
  • the primer layer then on the outside serves as a protective layer.
  • Such materials which can only be transferred under the action of heat, are - unlike the paint films mentioned at the outset - not suitable for paint repair, for example on motor vehicles, because the devices required for heat generation, such as, for example, according to US Pat. No. 2,667,003 or US Pat. No. 3,434,902 , are either not available to the user or, such as an iron, are not suitable for non-flat surfaces.
  • the present invention is therefore based on the object of designing a method for producing a paint film of the type mentioned at the outset in such a way that there are no restrictions with regard to the paints to be used, so that, for example, original motor vehicle paints of any type are also present as dry material, so that Original paint repairs, but also inscriptions with original paint can be made.
  • the characterizing features of claim 1 are provided in the method of the type mentioned. It has been shown that this is the only way to achieve complete freedom with regard to the paint to be applied.
  • the wax layer applied as a neutralization layer ensures that a well adhering, continuous and uniformly smooth lacquer layer can be applied to the silicone layer, which is known per se as a solution layer.
  • the wax layer therefore does not serve, as in the prior art, to soften by later heating and to take over the function of a solution layer, but only to neutralize the apolar properties of the silicone layer, which initially repels each layer applied to it and the formation of a layer would prevent a continuous layer of paint.
  • the disadvantage of the dimethylsiloxane layer which is not suitable due to the interfacial layer stress that occurs to directly take up a material layer in low-viscosity form, can be avoided in a simple manner.
  • the wax layer which is applied in a highly viscous state, a closed layer can be achieved. A less viscous substance would result in a less well-closed layer due to the boundary layer stresses of the solution layer underneath, so that the layers to be applied thereon would not adhere properly and evenly.
  • the wax layer has a low cohesion and is therefore very thin. The adhesion with the siloxane layer is sufficient, but low.
  • the new process is suitable for applying automotive paint based on acrylic resin, what was previously not possible.
  • the wax-like neutralization layer which allows the application of any layers, it is also particularly advantageous and without any difficulty possible to apply and dry the adhesive layer evenly with the addition of solvents with apolar properties to this neutralization layer before the lacquer layer is applied.
  • This adhesive layer which is self-adhesive and cures at normal temperatures, has a high level of adhesion to the usual surfaces such as metal and wood and, after curing, a high degree of cohesion, lies between the lacquer layer and the wax layer in this process, which, however, since the composition of the adhesive layer and the wax layer is coordinated, then dissolves.
  • an adhesive acrylic resin can be used as an adhesive layer, since it is related to the paint to be applied.
  • the adhesive layer is either sprayed onto the wax layer in the low-viscosity state or also knife-coated in the higher-viscosity state.
  • the result is a transferable lacquer film that can be used particularly well for painting or touch-up work on motor vehicles or else on other parts.
  • a lacquer film constructed in this way has the advantage that the original lacquer is in solid film form and can be stored without damage even after production, even at high temperatures, for example in the car in summer.
  • the adhesive layer does not dry out.
  • the silicone layer takes on the task of preserving this adhesive and also ensures that the lacquer and adhesive layers are pulled off the carrier film properly. This type of film therefore has the advantage that a separate protective film need not be provided.
  • the varnish itself takes on the task of a peelable layer which, after separation from the carrier film, can be glued directly onto the surface to be treated.
  • This has the advantage that the original lacquer layer, which is otherwise only formed on the spot, can now be applied by hand and in a dry process.
  • a method which of course has considerable advantages, both in terms of the duration of the repair or painting treatment, and advantages of a different kind. It is obvious that the thinning mist which is otherwise customary in the spraying process is completely eliminated with such handling, so that the new method is very environmentally friendly .
  • a lacquer film produced in this way also has the advantage that, for example, multi-layer lacquers can be applied in exactly the same layer as is desired on the finished product.
  • the optical effect of such multi-layer lacquers, such as metallic effect lacquers, is therefore the same as that of an original lacquer.
  • Such paints could not previously be presented as dry paints.
  • lacquer layer is then on the outside in this type of production, when using suitable carrier films, such as clear polyester film based on polyethylene terephthalate, an original stoving lacquer, which consists of two components that react at 120 °, can also be applied to the film.
  • the film is stable at temperatures between 100 ° and 200 °.
  • lacquer can therefore also be applied in the lacquer baking process. This results in optimal cross-linking between the two paint components after about 20 minutes. Large molecules have formed, which give the special advantages of the stove enamel.
  • Such a paint has so far only been able to be applied directly to motor vehicles or the like using customary paint touch-up methods.
  • the lacquer film produced in this way in which the adhesive layer is initially on the outside, is particularly recommended for lettering or the like, where it is important to give them a certain hold before the lacquer characters stick. It has been shown that the transfer of letters or numbers from lacquer with a film produced by this method is much easier than was the case with previous tracing materials. There is also the possibility to use varnishes.
  • the transfer of the symbols from, the new paint film to the primer does not need with the help of separate spatulas or with Ballpoint pens, which put considerable pressure on the letters.
  • the paint symbols can be transferred from the new film in a simple manner by pressing on them with a handkerchief or only by hand, as is the case with the other type of paint films with the adhesive lying between the paint layer and the carrier.
  • the symbols are applied by screen printing.
  • transferring there is no stretching and no deformation of the paint symbols because there is practically no adhesion to the carrier film, but there is good adhesive strength of the adhesive, so that easy and direct transfer can be achieved at low pressure.
  • a carrying and conveyor track (1) which consists of an elongated support frame (2) for a rotating conveyor belt, not shown, which is moved in the direction of the arrows (3).
  • the carrying and conveying path (1) which in the exemplary embodiment is about twenty times as long as it is wide, several devices are provided for treating the surface of a polyester film which is wound up into a roll 4 and from this roll 4 via a deflection roll 5 the carrier and conveyor track 1 is placed.
  • This carrier film 6 consists, for. B. from an optically clear polyester film based on polyethylene terephthalate. This material has all the conditions for producing the paint film according to the invention.
  • This carrier film 6 has been provided with a dimethylsiloxane (silicone) layer on one side in a previous operation.
  • This layer serves as a solution layer and ensures that the layers applied later can also be detached from the carrier film. Due to its apolar property, this silicone layer repels almost every layer applied to it.
  • the silicone layer lies inside the wound roll 4. As a result of the deflection by means of the roller 5, the silicone layer reaches the top during the movement on the carrying and conveyor track 1.
  • the carrier web 6 therefore lies with its uncoated side on the carrier and conveyor web 1.
  • the silicone layer applied to the carrier film 6 is not suitable because of the boundary layer tensions which occur in order to apply a low-viscosity material layer directly thereon. The applied material would contract into drops. This also applies to paints.
  • a static discharge of the carrier film 6 is therefore first carried out, and a wax-like layer, for. B. Karnauba wax applied to the silicone layer of the film 6, this wax-like layer is thinned with turpentine to an extremely viscous substance.
  • the correspondingly diluted wax is applied directly to the siloxane layer using the doctor blade 8. Since the wax is highly viscous, a closed layer can be achieved. A less viscous substance would not result in a closed layer due to the boundary layer stresses previously indicated.
  • the wax used chemically consists of long, unbranched hydrocarbon chains with an average length of carbon atoms with a COOH (acid) group at some points on the chain.
  • the wax layer has a low cohesion and is therefore very thin.
  • the adhesion with the siloxane layer is sufficient, but low.
  • a spray booth 11 is arranged behind the evaporation zone, in which a certain drying of the wax takes place on the siloxane layer, in which a self-adhesive resin is applied as an adhesive layer to the wax layer with the aid of several spray nozzles 12.
  • This resin e.g. B. self-adhesive acrylic resin cures at normal temperatures and has a large adhesive force compared to the usual surfaces such as metal and wood and after curing a high degree of cohesion.
  • the adhesive layer must be weatherproof and also resistant to UV rays. When using acrylic resin, acrylic resin paints can be applied.
  • the self-adhesive resin is sprayed onto the wax layer in a low-viscosity state, with a solids content of 25 to 30 g / m 2 .
  • a mirror-smooth, high-gloss surface can be obtained by using a spraying process, which is particularly important when using high-gloss lacquers to be applied later.
  • the adhesive After spraying, the adhesive floats on the wax layer, whereby a low level of adhesion to this wax layer arises.
  • the Desmodur L fraction ensures that the adhesive cross-links, which increases cohesion and consequently weather resistance.
  • the addition of the isocyanate results in cross-connections between the molecules, i.e. network formation through polymerization.
  • an evaporation zone 13 with a ventilation channel 14 is again provided.
  • the film 6 then passes into a drying room 15, which is provided with guide rollers 16 and 17 for the carrier film web 6.
  • the guide roller 17 is arranged at such a distance above the support and conveyor track 1, but aligned parallel to this, that there is enough path length of the film 6 of the drying room 15 to achieve a quick drying of the adhesive by supplying warm air.
  • a cooling zone 18 is provided before the film 6, lying on the carrying and conveying device 1, again runs into a paint spraying system 19, in which, in the present case, with the aid of conventional spray nozzles the type of across the carrying and conveyor track 1 supply pipes 20 with nozzles, a first coat of paint is applied, which is then subjected to an intense warm air supply below the drying nozzle 21 in the embodiment, so that another coat of paint can then be applied to the pre-dried paint layer .
  • All spray nozzles 20 are surrounded in a manner known per se by a suction housing which removes the solvent vapors.
  • two-component paints or multi-layer paints can also be applied, as is readily apparent.
  • varnishes are then guided with the carrier film 6 through an evaporation zone 22 with a drain channel 23 and then again enter a drying chamber 24, which in turn is provided with guide and deflection rollers 18 and 17, such as the drying chamber 15, which runs parallel to the carrier and Conveyor path 1 are aligned and ensure that the carrier film 6 is guided upwards while it is exposed to the supply of warm air through the channel 25.
  • the arrangement of the two drying rooms 15 and 24, in which certain sections of the film are pulled upward saves space in the conveying direction 3 for the overall system.
  • the film leaving the drying room 24 is dried. It has a continuous lacquer layer which, depending on the choice of temperatures in the drying room 24, can correspond, for example, to the original stove enamel of motor vehicles.
  • the film is cut into pieces and packed by a schematically indicated cutting device 26.
  • the required sizes for paint repair work can then be cut out from these individual pieces of film.
  • the paint itself takes on the function of a continuous film which can be pulled off the carrier film 6 and can be glued to the surfaces to be treated with its adhesive layer by pressure.
  • a two-component acrylate paint can be applied to the adhesive layer in the spray booth, which is extremely weatherproof and chemically closely matches the previously used adhesive.
  • the color curing process which occurs essentially as a result of the cyanate-acrylate reaction the color pushes itself into the adhesive to some extent, which creates a mechanical anchor between the adhesive and the paint layer.
  • This anchoring between the adhesive and the lacquer layer is further promoted in that the lacquer is processed as second component isocyanate, which enters into a reaction with the top layer of the glue, which is not completely crosslinked even as a result of the low isocyanate content.
  • Films of the second type in which a buffer layer, e.g. B. in the form of an acrylic resin, and then only paint and adhesive is applied, since it is usually a film for transferring individual symbols, such as letters or numbers, stripes, or the like that after the paint symbols have been printed on, the adhesive can be applied with the aid of the register in such a way that it is only present at the locations where the paint symbols are also present.
  • a buffer layer e.g. B. in the form of an acrylic resin

Claims (5)

1. Procédé pour la fabrication d'une feuille de vernis que l'on peut transférer en la serrant à la main, dans lequel il est appliqué sur une pellicule de support, en particulier sous la forme d'une pellicule de polyester transparente à base de téréphtalate de polyéthylène, une couche de dissolvant, une couche de vernis et une couche d'adhésif, procédé caractérisé en ce que la couche dissolvante est du type diméthylsiloxane (silicone), et que sur la face de la pellicule de support qui porte la couche dissolvante, on applique une couche de neutralisation qui est constituée par une cire faite de chaînes d'hydrocarbures longues et ramifiées, avec une longueur moyenne de 30 atomes de carbone et avec un groupe COOH (acide) sur quelques points de la chaîne, qui est appliquée dans un état de viscosité élevée, et en ce que les autres couches sont appliquées après le séchage de cette couche de neutralisation, la couche avoisinant la couche de neutralisation étant adaptée, par sa composition avec des solvants, à-la composition de la couche de vernis et à la couche de cire et de silicone de façon telle que cette couche de neutralisation est ensuite dissoute.
2. Procédé suivant la revendication 1, caractérisé en ce que, comme couche de neutralisation, on applique une couche de cire de Carnauba.
3. Procédé suivant la revendication 1, caractérisé en ce que, comme couche de vernis, on applique une couche de vernis pour automobiles à base de résine d'acrylate, et que, comme couche d'adhésif, on applique une colle d'acrylate.
4. Procédé suivant la revendication 1, caractérisé en ce que l'on applique, sur la couche de neutralisation, la couche d'adhésif d'une façon bien uniforme, en y ajoutant des solvants ayant des propriétés apolaires, et laisse sécher avant d'appliquer la couche de vernis.
5. Procédé suivant la revendication 1, caractérisé en ce que, après séchage de la couche de neutralisation, on applique une couche-tampon en ajoutant des solvants ayant des propriétés apolaires, et laisse sécher avant d'appliquer la couche de vernis.
EP81108299A 1980-10-29 1981-10-14 Feuille de laque transférable et procédé pour sa fabrication Expired EP0050794B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108299T ATE7461T1 (de) 1980-10-29 1981-10-14 Uebertragbare lackfolie sowie verfahren zu ihrer herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8005935 1980-10-29
NL8005935A NL8005935A (nl) 1980-10-29 1980-10-29 Overdraagbaar lakvel, alsmede werkwijze voor het vervaardigen daarvan.

Publications (3)

Publication Number Publication Date
EP0050794A1 EP0050794A1 (fr) 1982-05-05
EP0050794B1 EP0050794B1 (fr) 1984-05-16
EP0050794B2 true EP0050794B2 (fr) 1988-02-10

Family

ID=19836076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108299A Expired EP0050794B2 (fr) 1980-10-29 1981-10-14 Feuille de laque transférable et procédé pour sa fabrication

Country Status (10)

Country Link
US (2) US4451522A (fr)
EP (1) EP0050794B2 (fr)
JP (1) JPS57103889A (fr)
KR (1) KR830007151A (fr)
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ZA816728B (en) 1982-09-29
KR830007151A (ko) 1983-10-14
IL63975A (en) 1984-10-31
US4451522A (en) 1984-05-29
BR8106883A (pt) 1982-07-13
DE3042156A1 (de) 1982-05-13
DE3042156C2 (de) 1984-08-30
EP0050794A1 (fr) 1982-05-05
DE3163661D1 (en) 1984-06-20
NL8005935A (nl) 1982-05-17
JPS57103889A (en) 1982-06-28
US4497851A (en) 1985-02-05
JPS6147719B2 (fr) 1986-10-21
EP0050794B1 (fr) 1984-05-16
IL63975A0 (en) 1981-12-31
ATE7461T1 (de) 1984-06-15

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