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
  • 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
  • Y10T428/14—Layer or component removable to expose adhesive
  • Y10T428/1452—Polymer derived only from ethylenically unsaturated monomer
• • 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
  • Y10T428/31504—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]
  • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
  • Y10T428/31797—Next to addition polymer from unsaturated monomers

Definitions

• the invention relates to a transferable paint film according to the features of the preamble of claim 1.
• Such a lacquer film is known from EP-PS 50 794.
• this lacquer film there is a neutralizing layer with a wax-like consistency on the silicone layer serving as the solution or release layer, which here is of the dimethylsiloxane type.
• the wax-like neutralization layer enables the formation and adhesion of a uniform, smooth lacquer layer of any kind on the carrier film.
• paint films with paint layers are described, which consist of original automotive paints.
• the original vehicle paint is available here as dry material that a consumer can easily carry with him and, if necessary, use to repair damaged areas on the vehicle body.
• the lacquer film according to the invention has the advantage that a neutralization layer is unnecessary due to the use of another silicone layer.
• the paint film can accordingly be produced with less material and less work.
• adhesive layers can be applied directly, uniformly and well adhering, without wetting difficulties and, if necessary, can be removed again without changing their properties. This is due to the high degree of cross-linking of the silicone layer. This largely prevents free silicones from migrating into the other layers.
• the former could react chemically with one or more constituents of the layers and / or physically attach to constituents of the other layers, which would result in material losses in the lacquer and / or with the adhesive and thus a deterioration in quality.
• Silicone layers of the polyaddition type are known per se. They can be produced, for example, by reacting organosilicon compound bearing hydrogen on the silicon atom with silicon compounds bearing unsaturated groups.
• Silicone layers of the alkenyl group-containing, in particular of the vinyl group-containing, polyaddition type have proven to be particularly suitable for the present application.
• highly cross-linked silicone layers for example of the silicone rubber type, can be produced in a very short period of time, which fulfill all the requirements placed on them.
• the silicone layers can be produced according to the following reaction scheme:
• Plastic films are particularly suitable as the carrier film for the present application.
• the plastic films must be smooth on the surface so that a uniform, smooth lacquer layer can be obtained.
• the plastic films should also be mechanically resistant so that tearing and no wrinkling occur during the further manufacturing process. Furthermore, they should be chemically resistant, in particular to organic solvents which are present in the other components of the paint film or when it is applied.
• the plastic films should also be thermally resistant Temperatures that occur in the paint drying or paint baking process, ie between 100 ° C and 150 ° C. It has been found that polyester films, in particular polyethylene terephthalate films, are particularly suitable for the present application. The use of other plastic films is also possible.
• the adhesive layer must also meet a number of conditions in order to be used for the paint film according to the invention. It should be self-adhesive and have a great adhesive force, especially in relation to metal, plastic and wood surfaces. Their adhesiveness must also be against after the paint layer has dried or hardened. For this reason, it must be chemically resistant to the solid and liquid components such as solvents contained in the paints used. If e.g. If two-component paints based on acrylic resin are used, the components of the adhesive layer should not crosslink with the isocyanates contained in these paints in order to avoid loss of adhesive or loss of effectiveness.
• the adhesives listed in claims 13 and 14 are found to be very suitable for the paint film according to the invention.
• non-crosslinking acrylic adhesives based on solvents or water could also be used, in particular as dispersions, neoprene adhesives, chlorinated rubber adhesives, polyisobutylene adhesives and adhesives made from chlorinated hydrocarbons.
• the carrier film provided with a silicone layer according to the invention can be used without any difficulty to produce a uniform, well adhering lacquer layer if it is provided with the adhesive layer before the lacquer layer is applied. A product is thus obtained in which the lacquer is present as the top layer.
• the layer of varnish together with the adhesive can be simple removed by hand from the carrier film and glued directly to the object to be treated with paint.
• a solvent-containing system which contains at least one organosilicon compound carrying hydrogen on the silicon atom and at least one organosilicon compound bearing alkenyl groups, and a platinum or iridium catalyst, onto one side of a web-like carrier film using a suitable device, or, if that solvent-based system should be more viscous to apply.
• organosilicon compounds bearing vinyl groups are particularly suitable for this. This enables a highly cross-linked silicone to be obtained at room temperature within a few seconds. After subsequent drying, there is an even silicone layer on the carrier film. The drying temperature depends on the solvent used and the type of carrier film. For polyethylene terephthalate films it can be 150 ° C. A certain amount of crosslinking of the silicone layer also takes place during the drying. Silicone layers with a thickness of one or a few micrometers have proven to be particularly suitable for producing a paint film according to the invention.
• a uniformly thick adhesive layer can be produced particularly easily on the carrier film provided with a silicone layer according to the invention if the procedure is as claimed in claim 18. With the help of the proposed solvent, a perfect wetting of the silicone layer and a relatively quick drying of the adhesive layer is possible.
• the film thus produced is not to be further processed immediately, ie to be provided with one or more layers of lacquer, it is proposed that it be provided with a web-like cover film, which must have the property that it has the adhesive layer not damaged, cover.
• the film can be stored in one or more layers in sheets or rolled up without any problems until it is processed further.
• Another possibility is to provide the back of the carrier film with a release layer. The film can be stored in multiple layers in sheets or rolled up until it is processed further.
• Polyester films coated with a silicone layer according to the invention are particularly suitable as cover films. It is sufficient if a film of a smaller thickness than that of the carrier film is used as the cover film, since the former is subjected to less mechanical stress than the latter.
• Papers coated with a silicone layer according to the invention are also particularly suitable as cover films.
• the lacquer is applied in liquid form to the adhesive layer and then dried. The process is repeated for multi-layer paints.
• the product can then either be rolled up or stored in pieces. If necessary, a large piece of the area to be covered with lacquer can be cut off from the product, the lacquer layer together with the adhesive layer can be pulled off from the silicon-coated carrier film by hand and stuck onto the surface to be covered in the manner of a plaster.
• the paint film according to the invention can also be prepared according to claim 25.
• the individual areas can be cut free by a stamping process. That way you can sharp, self-adhesive symbols, numbers and letters made of lacquer can also be produced in a rational manner.
• composition and shape of the individual components of the new paint film are described below.
• the new paint film is preferably produced with a continuously operating device, as described and shown schematically in EP-PS 50 794.
• a polyethylene terephthalate film of about 50 to 80 micrometers thick and about one meter wide is used as the carrier film for the lacquer film, which is wound into a roll.
• This carrier film has optimal conditions for producing the lacquer film according to the invention because it is smooth on the surface and has excellent mechanical, chemical and thermal resistance.
• the carrier film can be fed to the device endlessly from the roll or in sheets. In a previous process, this carrier film was provided on one side with an approximately one micrometer thick silicone layer which is highly crosslinked and of the alkenyl group-containing, especially of the vinyl group-containing, polyaddition type.
• the carrier film has been dried at about 150 ° C.
• the surface tension of the silicone layer is 22 dynes / cm.
• the average separation value of the silicone layer was determined to be 11.25 + 3.75 cN / cm, using the test method listed below:
• the test adhesive tape is a polyvinyl chloride film on which an adhesive layer based on rubber is anchored.
• Such a test adhesive tape is available, for example, under the name Tesa 154 from Beiersdorf AG, Hamburg.
• the test tape is placed on the silicone layer with the adhesive layer and the sample is stored for about 20 hours at room temperature under a pressure of 8 to 10 kPa.
• the mean separation value is then determined by measuring the peel force of several samples using suitable equipment.
• a highly viscous, trichlorethylene-containing styrene-isoprene-styrene block polymer system is knife-coated onto the silicon-coated side of the carrier film to produce an adhesive layer.
• the adhesive is applied in such an amount that an adhesive layer of 10 to 14 g / m2 is obtained after it has dried.
• the carrier film is then dried at a temperature which is above 85 ° C.
• the adhesive layer thus produced is self-adhesive and has great adhesiveness, e.g. compared to metal, plastic and glass surfaces, which can also be painted, as well as a high degree of cohesion.
• Automotive paint is applied to the adhesive side of the cooled carrier film prepared in this way. If a solid color is desired, a solvent-containing two-component acrylic isocyanate system is sprayed on evenly and dried. The system networks well with the adhesive layer. The process is continued until ei ne layer thickness of about 20 to 40 microns is reached.
• the paint film produced in this way is strong, very flexible, colourfast and weatherproof.
• a physically drying acrylic lacquer is sprayed evenly onto the adhesive layer and dried as the first layer.
• the paint adheres perfectly to the adhesive layer.
• a two-component acrylic isocyanate clear lacquer is sprayed on and dried.
• the clear coat adheres perfectly to the first coat of paint.
• the total lacquer layer thickness is also about 25 to 45 micrometers here. This paint film corresponds to the paint layer structure and thus the optical effect of original metallic automotive stove enamels, is strong, very flexible, colourfast and weatherproof.
• the lacquer film initially has a continuous lacquer layer. Punching out individual, handy, large areas of the lacquer layer is now cut free from lacquer layer regions adjoining them laterally, the adhesive layer regions underneath also being detected and also cut free. The lacquer film is then cut into pieces and packaged. If necessary, dry pieces of lacquer layer can be peeled off from the sections by the consumer and glued onto their surfaces to be repaired with their adhesive layer side. It does not matter if the silicone layer has also been cut free in some areas in the previously described stamping process. The silicone layer adheres so little to the adhesive layer that it is never peeled off.

Landscapes

• Laminated Bodies (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Adhesive Tapes (AREA)
• Decoration By Transfer Pictures (AREA)
• Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6277394

Family Applications (1)

Country Status (6)

Cited By (4)

Families Citing this family (15)

Family Cites Families (12)

• 1985
  • 1985-08-01 DE DE19853527609 patent/DE3527609A1/de active Granted
• 1986
  • 1986-07-08 EP EP86109296A patent/EP0213327A3/fr not_active Withdrawn
  • 1986-07-21 US US06/887,787 patent/US4766038A/en not_active Expired - Fee Related
  • 1986-07-24 AU AU60495/86A patent/AU566661B2/en not_active Ceased
  • 1986-07-29 DD DD86293058A patent/DD251527A5/de not_active IP Right Cessation
  • 1986-07-31 JP JP61178977A patent/JPS6233635A/ja active Pending

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