EP0050794B1 - 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
EP0050794B1
EP0050794B1 EP81108299A EP81108299A EP0050794B1 EP 0050794 B1 EP0050794 B1 EP 0050794B1 EP 81108299 A EP81108299 A EP 81108299A EP 81108299 A EP81108299 A EP 81108299A EP 0050794 B1 EP0050794 B1 EP 0050794B1
Authority
EP
European Patent Office
Prior art keywords
layer
lacquer
adhesive
transferable
film according
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
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German (de)
English (en)
Other versions
EP0050794B2 (fr
EP0050794A1 (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
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Nordipa AG
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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
Publication of EP0050794B1 publication Critical patent/EP0050794B1/fr
Application granted granted Critical
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
    • 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
    • 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
    • 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 transferable lacquer film, consisting of a carrier film, a solution layer applied thereon, a color or lacquer layer and an adhesive layer.
  • a carrier film is provided on which a solution layer consisting of 23 parts of nitro-cellulose, 80 parts of solvent, 2 parts of plasticizer and 10 parts of alkyd resins is applied. After this solution layer has dried, a nitro-cellulose lacquer is applied to this layer, which in turn is provided with a customary pressure-sensitive adhesive after drying. As stated there, the lacquer film produced in this way can be cut out accordingly and brought with the adhesive side down over a damaged lacquer area on the motor vehicle and glued on under pressure. The carrier film is then peeled off. With this lacquer film, the underside of the lacquer layer is thus outside after the carrier has been pulled off, while the front is arranged below it.
  • tracing materials are also known (NL-PS 123 093), which consist of a transparent or transparent carrier film, on which characters can be traced by screen printing. Such signs are only suitable for indoor applications, such as for labeling drawings or advertising material.
  • the present invention has for its object to design and build a paint film of the type mentioned in such a way that there are no longer any restrictions with regard to the paints to be used and that, for example, original vehicle paints of any type are present as dry material, so that original paint repairs, but also Inscriptions can be made with original paint.
  • the invention consists in that a neutralizing layer with a wax-like consistency is applied to the solution layer. It has been shown that this is the only way to achieve complete freedom with regard to the paint to be applied.
  • the new film With the new film, the known paint touch-up with original paints, but also with two-component or stove enamels is possible, which was previously only possible by brushing or spraying and subsequent temperature treatment on the motor vehicle itself. So-called metallic paints, which depend on which layer is facing the viewer, can also be used.
  • the new paint film gives you the option of carrying a piece of original paint dry with you so that you can make repairs if necessary.
  • the solution layer is of the dimethylsiloxane type (silicone). Due to its apolar properties, this layer repels almost every layer applied to it. In order to nevertheless be able to apply a well adhering, continuous and smooth lacquer layer, a layer of Karnauba wax is advantageously provided as the neutralizing layer. This wax is expediently diluted to an extremely viscous substance using turpentine and then applied directly to the siloxane layer using a doctor blade.
  • the disadvantage of the dimethylsiloxane layer which is not suitable for directly absorbing a material layer in low-viscosity form due to the boundary layer stress that occurs, is avoided in a simple manner by the interposition of the neutralization layer.
  • the wax used consists of long and branched hydrocarbon chains with an average length of 30 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.
  • the new film provided with the wax-like neutralization layer can be used particularly advantageously and without any difficulty to produce a uniform, well-adhering lacquer layer if it is provided with an adhesive layer which is self-adhesive and when applied before the lacquer coating cures at normal temperatures, has a high level of adhesion to common surfaces such as metal and wood, and has a high degree of cohesion after curing.
  • This adhesive layer must be weatherproof and also resistant to UV radiation.
  • composition of this adhesive and neutralizing layer is matched to the composition of the lacquer layer and the silicone layer so that the neutralizing layer is dissolved by the solvent added to the adhesive, but without the adhesive coming into contact with the silicone layer in such a liquid form that the uniform layer formation is influenced by boundary layer stress effects.
  • the lacquer layer can then be applied properly to this adhesive layer.
  • an adhesive acrylic resin particularly useful because it has a relationship with the paint to be applied.
  • the adhesive layer is either sprayed onto the wax layer in the low-viscosity state or knife-coated in the higher-viscosity state.
  • the result is a transferable lacquer film which can be used particularly well for painting or touch-up work on motor vehicles or else on other parts.
  • a lacquer film which has been developed in this way has the advantage that the original lacquer is in solid film form and can be stored without damage 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 carrier film can advantageously be constructed as a clear polyester film based on polyethylene terephthalate.
  • the carrier film must meet a number of conditions in order to be used for the lacquer film according to the invention. So the carrier film or the carrier film must have a very smooth surface. It should be resistant to the essentially aromatic solvents which are used in the other components of the transfer material or in its arrangement, it should be stable at the temperatures which are used in the lacquer drying or lacquer baking process, i.e. H. at temperatures between 100 ° C and 200 ° C. It has been shown that the polyester film mentioned fulfills these conditions. Such a film also has the advantages that original stoving lacquer can be applied, which consists of two components that react at 120 ° C. After about 20 minutes there is an optimal cross-linking between the two coating components. Large molecules have formed, which give the special advantages of the stove enamel. Until now, such a paint could only be applied to motor vehicles or the like using the customary paint touch-up methods.
  • a web-like carrier film is first provided on one side with the solution layer in a suitable device.
  • This carrier web is then provided on the coated side with the neutralization layer made of wax-like material.
  • This layer is then subjected to drying and only then are the further layers applied. It is possible, as already mentioned, to first apply an adhesive layer in liquid form to the neutralization layer and then to subject this layer to drying, after which the lacquer layer is applied.
  • This type of film has the advantage that a separate protective film does not have to be provided. Rather, 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 with regard to the duration of the repair or painting treatment, as well as advantages of another type. It is clear 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.
  • the lacquer film produced in the second way in which the adhesive layer is initially on the outside, is particularly recommended for inscriptions or the like, where it is important to give them a certain hold before the lacquer characters stick.
  • the advantage of a lacquer film which is produced according to the first type and in which, for example, multi-layer lacquers can be applied exactly in the same layering as is also desired on the finished product cannot be the same in the case of a film which is produced according to the second type be realized. Nevertheless, it has been shown that the transfer of letters or numbers from lacquer with a film produced by the second method is much easier than was the case with previous tracing materials. Also the possibility to use varnishes, which has not existed before.
  • the symbols do not have to be transferred from the new paint film to the primer using separate spatulas or ballpoint pens, which exert 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 known per se, the symbols are applied by screen printing. When transferring, there is no stretching and no deformation of the lacquer 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 device which is characterized by a carrier and conveyor track for the carrier film and by application devices assigned to the carrier and conveyor track for the wax-like neutralizing layer and for the adhesive or Layers of paint. It is advantageous if the carrier films are provided with the silicone layer which is applied at high temperature and then brought into roll form, a roll-off device being provided for the carrier film which has been rolled up and already provided with the solution layer on one side Conveyor track is connected upstream. With the help of this unwinding device, the carrier film is unwound in such a way that it lies with the uncoated side on the carrier and conveyor track.
  • the film thus moved can then be passed through the various processing stations, wherein it can first be statically discharged and then runs under a doctor device for applying the wax layer. After this wax layer has evaporated and dried, the adhesive layer can then be applied. This can be done with the aid of doctor devices, but also advantageously by means of suitable spray devices.
  • suitable spray devices for example, a spray device for a spray device.
  • drying rooms being provided for drying the treated film which are provided with guide rollers for the carrier film aligned parallel to the carrier and guideway, at least one of which is arranged at a distance above the carrier and guideway, so that the carrier film is guided upwards for drying and so the space required for the drying section in the running direction of the conveyor belt can be kept small.
  • a similar device can be used to produce a transferable lacquer film of the second type.
  • lacquer films of the second type are predominantly provided with lacquer in the form of symbols, such as letters and numbers or the like
  • a screen printing device can advantageously be used for the production of such films, in which after the application of the silicone solution layer and the wax-like neutralization layer and the buffer layer, which can be an acrylic resin, for example, the lacquer is applied with the aid of the register.
  • the advantage here is that the letters are sharply delimited.
  • the screen printing ink which is then an acrylate ink, contains aggressive solvents and where the characters are printed, the acrylic resin layer and the wax layer are dissolved right up to the edges of the characters.
  • the drying of the paint and the dissolving power of the resin and wax layers are coordinated so that when the silicone layer is reached the paint is so dry that crater formation is avoided.
  • the adhesive layer is then also applied with the aid of the register, so that the adhesive, when using acrylate varnish, is applied wherever there is color.
  • An additive of weakly adhering primer is added to this acrylate adhesive in order to achieve good adhesion between the adhesive and the paint.
  • 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 arrows 3.
  • 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 moves upward during the movement on the carrying and conveyor track 1.
  • the carrier web 6 therefore lies with its uncoated side on the carrying and conveying 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 30 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 in a self-adhesive resin is applied as an adhesive layer on the wax layer by means of several spray nozzles 12th
  • 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, specifically with a solids content of 25 to 30 g / m 2.
  • a spraying process By using a spraying process, a mirror-smooth, high-gloss surface can be obtained, which is particularly important when using later high-gloss lacquers.
  • the adhesive After spraying, the adhesive starts swimming on the wax layer, with a slight degree of adhesion to this wax layer.
  • 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 at such a distance above the support - arranged and conveying path 1, but oriented parallel thereto, that there is enough path length of the film 6 remains of the drying chamber 15 in order to achieve by supplying hot air rapid drying of the adhesive.
  • a cooling zone 18 is provided before the film 6, lying on the carrying and conveying device 1, runs into a paint spraying system 19, in which, in the present case, with the aid of conventional spray nozzles
  • a first coat of paint is applied, which in the exemplary embodiment is then subjected to an intensive supply of warm air below a drying nozzle 21, so that a new coat of paint is then applied to the pre-dried coat of paint can.
  • 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 in the spray booth 19.
  • These lacquers are then guided with the carrier film 6 through an evaporation zone 22 with a drainage channel 23 and then pass again into a drying chamber 24, which in turn is provided with guide and deflection rollers 16 and 17, such as the drying chamber 15, which is parallel to the carrying 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.
  • the film 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 partial 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 will penetrate the adhesive to some extent, creating a mechanical anchoring between the adhesive and the lacquer 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Adhesive Tapes (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Medicinal Preparation (AREA)

Claims (18)

1. Feuille de laque transférable, constituée d'un film porteur, d'une couche de séparation déposée sur ce film, d'une couche de couleur ou de laque et d'une coutche de colle, feuille caractérisée en ce qu'une couche de neutralisation d'une consistance cireuse est déposée sur la couche de séparation.
2. Feuille de laque transférable selon la revendication 1, caractérisée en ce que la couche de séparation est du type diméthylsiloxane (silicone).
3. Feuille de laque transférable selon les revendications 1 et 2, caractérisée en ce que, comme couche de neutralisation, il est prévu une couche de cire de carnauba.
4. Feuille de laque transférable selon la revendication 1, caractérisée en ce que le film porteur est réalisé sous la forme d'un film clair de polyester à base de therephthalate de polyéthylène.
5. Feuille de laque transférable selon l'une des revendications 1 à 4, caractérisée en ce que la composition de la couche de colle est assortie à la composition de la couche de laque et à la composition de la couche de cire et de la couche de silicone.
6. Feuille de laque transférable selon la revendication 5, caractérisée en ce que pour la couche de laque, il est prévu de la laque courante du commerce pour véhicules automobiles.
7. Feuille de laque transférable selon la revendication 6, caractérisé en ce que la laque pour véhicules automobiles est prévue à base de résine acrylique, tandis qu'il est prévu pour la couche de colle, une colle acrylique.
8. Feuille de laque transférable selon l'une des revendications 1 à 4, caractérisée en ce que sur la couche cireuse de neutralisation, est déposée une couche tampon, puis sur cette couche, la couche de laque pois sur celle-ci, la couche de colle.
9. Feuille le laque transférable selon la revendication 8, caractérisée en ce que sur la couche tampon est rapportée la couche de laque sous la forme de symboles, puis sur ces symboles en laque, la couche de colle sous une forme correspondant aux symboles.
10. Feuille de laque transférable selon la revendication 9, caractérisée en ce que la colle comporte une première couche d'adhérence pour une meilleure possibilité d'adhérence sur les symboles en laque, tandis que sa composition est accordée à la composition de la laque.
11. Feuille de laque transférable selon la revendication 8, caractérisée en ce que la composition de la couche tampon est accordée à la composition de la couche de laque et à la composition de la couche de cire et de la couche de silicone.
12. Feuille de laque transférable selon l'une des revendications 8 à 11, caractérisée en ce que la couche tampon est transparente.
13. Feuille de laque transférable selon l'une des revendications 8 à 12, caractérisée en ce que pour la couche tampon, il est prévu une couche de résine arylique.
14. Feuille de laque transférable selon la ré- vendication 13, caractérisée en ce qu'il est prévu pour la couche de laque, une laque à base de résine acrylique.
15. Procédé pour la fabrication d'une feuille de laque selon la revendication 1 ou bien l'une des autres revendications, caractérisé en ce qu'un film porteur en forme de bande est muni d'un côté de la couche de séparation, que la bande porteuse ainsi constituée estgarnie sur son côté revêtu d'une couche de neutralisation en un matériau cireux, que cette couche est soumise à un séchage et que seulement ensuite les autres couches sont déposées.
16. Procédé selon la revendication 15, caractérisé en ce que sur la couche de neutralisation, est déposée uniformément la couche de colle avec addition de solvants ayant des propriétés apolaires, puis cette couche de colle est séchée avant que la couche de laque soit déposée.
17. Procédé selon la revendication 15, caractérisé en ce que, après le séchage de la couche de neutralisation, la couche tampon est déposée de façon uniforme avec addition de solvants ayant des propriétés apolaires, puis cette couche tampon est séchée avent que la couche de laque soit déposée.
18. Procédé selon la revendication 17, caractérisé en ce que la couche, de laque est déposée sous forme de symboles et qu'après le séchage de ceux-ci, la couche de colle est également déposée sous forme de symboles, les symboles de la couche de colle et ceux de la couche de laque correspondant les uns aux autres.
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
NL8005935A NL8005935A (nl) 1980-10-29 1980-10-29 Overdraagbaar lakvel, alsmede werkwijze voor het vervaardigen daarvan.
NL8005935 1980-10-29

Publications (3)

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

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EP81108299A Expired EP0050794B2 (fr) 1980-10-29 1981-10-14 Feuille de laque transférable et procédé pour sa fabrication

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US (2) US4451522A (fr)
EP (1) EP0050794B2 (fr)
JP (1) JPS57103889A (fr)
KR (1) KR830007151A (fr)
AT (1) ATE7461T1 (fr)
BR (1) BR8106883A (fr)
DE (2) DE3042156C2 (fr)
IL (1) IL63975A (fr)
NL (1) NL8005935A (fr)
ZA (1) ZA816728B (fr)

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Also Published As

Publication number Publication date
ATE7461T1 (de) 1984-06-15
DE3042156A1 (de) 1982-05-13
ZA816728B (en) 1982-09-29
IL63975A0 (en) 1981-12-31
KR830007151A (ko) 1983-10-14
BR8106883A (pt) 1982-07-13
IL63975A (en) 1984-10-31
JPS57103889A (en) 1982-06-28
US4451522A (en) 1984-05-29
DE3042156C2 (de) 1984-08-30
JPS6147719B2 (fr) 1986-10-21
US4497851A (en) 1985-02-05
EP0050794B2 (fr) 1988-02-10
NL8005935A (nl) 1982-05-17
DE3163661D1 (en) 1984-06-20
EP0050794A1 (fr) 1982-05-05

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