Transfer foil, method for producing a transfer foil and method for producing a plastic article decorated using a transfer foil
AssigneeLeonhard Kurz Stiftung & Co. KG
InventorAndreas Kratzer
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Abstract
A The invention relates to a transfer film (10), which has a carrier film (12) having a master structure varnish (18) and a transfer ply (14), arranged on the carrier film (12) and detachable from the carrier film (12), including a topcoat (16), wherein the master structure varnish (18) is arranged on the carrier film (12) on its side facing the transfer ply (14) and has a master structure and wherein a master structure is molded on the carrier film (12) on its side facing the transfer ply (14) and wherein the topcoat (16) includes a structuring which has a structure complementary to the master structure.
Claims34
A method for producing a transfer film, the method comprising:
- applying a master structure varnish to a carrier film;
- introducing a replicated master structure in the master structure varnish;
- and
- applying a topcoat to the replicated master structure, wherein a structure complementary to the replicated master structure of the master structure varnish is molded into the topcoat,
- wherein the topcoat having the structure complementary to the replicated master structure of the master structure varnish forms a layer of a transfer ply, the transfer ply being arranged on the carrier film and detachable from the carrier film, and
- wherein the transfer ply has further layers arranged on the side of the topcoat facing away from the carrier film, the further layers of the transfer ply arranged on the side of the topcoat facing away from the carrier film having a stretchability of at least 80% of a stretchability of the topcoat, and
- wherein the master structure varnish has components curable by UV radiation, and
- wherein the topcoat is formed from polymers selected individually or in combination from:
- polymethyl acrylates, polymethyl methacrylates, polyvinylidene flouride, copolymers of polymethyl acrylates and polyvinylidene fluoride, copolymers of polymethyl methacrylate and polyvinylidene fluoride,
- and/or
- polyol, polyurethane (PU), copolymers of polyurethane (PU) and polyol, copolymers of polyurethane (PU) and polyacrylate.
A method for producing a plastic article or film article decorated with a transfer ply of a transfer film with the following steps:
- providing a transfer film comprising a carrier film and a transfer ply arranged on the carrier film and detachable from the carrier film, the carrier film comprising a master structure varnish and the transfer ply comprising a topcoat, wherein the master structure varnish is arranged on the carrier film on its side facing the transfer ply and has a replicated master structure and wherein the topcoat comprises a structuring which has a structure complementary to the replicated master structure,
- peeling the carrier film, together with the replicated master structure, off the transfer ply of the transfer film,
- arranging the transfer film in an injection mold,
- back-injection molding the transfer film with a plastic injection-molding material,
- obtaining a decorated plastic article or a film article,
- wherein the transfer ply has layers arranged on the side of the topcoat facing away from the carrier film, the layers of the transfer ply arranged on the side of the topcoat facing away from the carrier film having a stretchability of at least 80% of a stretchability of the topcoat, and
- wherein the master structure varnish has components curable by UV radiation, and
- wherein the topcoat is formed from polymers selected individually or in combination from:
- polymethyl acrylates, polymethyl methacrylates, polyvinylidene flouride, copolymers of polymethyl acrylates and polyvinylidene fluoride, copolymers of polymethyl methacrylate and polyvinylidene fluoride,
- and/or
- polyol, polyurethane (PU), copolymers of polyurethane (PU) and polvol, copolymers of polyurethane (PU) and polyacrylate.
Dependencies are inferred from the claim text.