Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/405—Marking
  • B42D25/425—Marking by deformation, e.g. embossing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
  • B42D25/373—Metallic 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
  • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
  • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
• • 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
  • B05D7/02—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 to macromolecular substances, e.g. rubber
  • B05D7/04—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 to macromolecular substances, e.g. rubber to surfaces of films or sheets
• • 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
  • B05D7/24—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 for applying particular liquids or other fluent materials
  • B05D7/26—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 for applying particular liquids or other fluent materials synthetic lacquers or varnishes
• • 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
  • B05D7/50—Multilayers
  • B05D7/56—Three layers or more
  • B05D7/58—No clear coat specified
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
  • B29C70/28—Shaping operations therefor
  • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
  • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific 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
  • B32B27/06—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
• • 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
  • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
• • 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
  • B32B7/06—Interconnection of layers permitting easy separation
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/455—Associating two or more layers using heat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/465—Associating two or more layers using chemicals or adhesives
  • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
  • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
  • B44C5/0453—Ornamental plaques, e.g. decorative panels, decorative veneers produced by processes involving moulding
• • 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
• • 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/20—Inorganic coating
• • 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/20—Inorganic coating
  • B32B2255/205—Metallic coating
• • 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
  • B32B2255/00—Coating on the layer surface
  • B32B2255/28—Multiple coating on one surface
• • 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
  • B32B2451/00—Decorative or ornamental articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/46—Associating two or more layers using pressure

Definitions

• the invention relates to a decorative film, in particular a laminating film,
• Hot stamping foil and / or cold stamping foil a method for producing a decorative film and a method for decorating a target substrate with a decorative film.
• a total lacquer layer of the decorative film is transferred to a target substrate and then the carrier film of the decorative film is removed. With such a transfer of the total lacquer layer of a decorative film from a carrier film to a target substrate, the total lacquer layer is torn along a boundary line which defines the partial area of the total lacquer layer to be transferred. This partial area can in particular be defined by an adhesive layer which is applied to the target substrate and which connects the overall lacquer layer to the target substrate.
• the applied adhesive layer is in particular only partially applied and can, for example, be configured in the form of a pattern.
• the decorative film tears at the outer edge of the adhesive layer.
• it can lead, for example, to undefined cracks in the overall lacquer layer far from the outer edge of the adhesive layer, which results in an unclean decoration.
• the invention is now based on the object of specifying an improved decorative film, an improved method for producing a decorative film and an improved method for decorating a target substrate.
• a decorative film in particular a laminating film, cold stamping film or hot stamping film, comprising a carrier film and an overall lacquer layer, the carrier film having a thickness in the range from 3.0 ⁇ m to 10.0 ⁇ m.
• a method for producing a decorative film comprising the following steps, which are carried out in particular in the following order: a) Providing a carrier film, the carrier film having a thickness in the range from 3.0 ⁇ m to 10 ⁇ m , 0 ⁇ m, b) applying an overall layer of lacquer to at least one area of at least one surface of the carrier film, a decorative film being formed.
• At least a partial area of the at least one area is arranged on at least one surface of the at least one surface of the carrier film, this at least partially covering at least one surface of the at least one surface of the carrier film.
• this object is achieved by a method for decorating a target substrate, the method comprising the following steps, which are carried out in the following order in particular: d) providing a decorative film, e) providing a target substrate, f) applying the decorative film to at least one Area at least one
• At least a partial area of the at least one area is arranged on at least one surface of the at least one surface of the target substrate, this at least partially covering at least one surface of the at least one surface of the target substrate.
• the present invention achieves an improved covering power and a cleaner expression of the decoration compared to conventional decorative foils, since the tearing force and the tear force are reduced due to the reduced carrier foil thickness and this is decisive for a high-quality decoration of the target substrate are.
• the carrier film is peeled off from the overall lacquer layer, the carrier film is bent, so that tensions result, in particular, over the entire cross section of the decorative film. Due to the reduced thickness of the carrier film, these stresses can be reduced and the resulting tear force and tear force are also reduced. Furthermore, the fluctuations in the force amplitude of the tear force decrease significantly, which further improves the detachment behavior and promotes a clean decoration.
• a decorative film with a carrier film thickness in the range from 3.0 ⁇ m to 10.0 ⁇ m reduces the amount of plastic waste compared to conventional decorative films.
• the overall lacquer layer has a thickness in the range from 1.0 gm to 2.5 gm, in particular from 1.0 gm to 1.7 gm. It has been shown that with such a layer thickness the overall lacquer layer breaks particularly well at the predefined edges which are defined by the outer edge of the adhesive layer. A clean decoration of the decorative film on the target substrate can thus be achieved.
• the ratio of the carrier film thickness to the total lacquer layer thickness is preferably in a range from 1.8: 1 to 7.0: 1, preferably from 2.5: 1 to 5.8: 1, the carrier film having a thickness in a range greater than or equal to 3 gm to less than or equal to 7 gm and / or the ratio of the carrier film thickness to the total lacquer layer thickness is in a range from 4.1: 1 to 10.0: 1, preferably from 4.4: 1 to 8.3: 1, wherein the carrier film has a thickness in a range from greater than or equal to 7 ⁇ m to less than or equal to 10 ⁇ m.
• Such conditions promote good detachment behavior of the carrier film from the overall lacquer layer. This is because under such conditions, when the carrier film is peeled off from the overall lacquer layer, lower stresses occur than with conventional decorative films. This also improves the decoration quality.
• the carrier film comprises a material or a material combination selected from: PET, PMMA, PC, PE, PVC, PS, ABS, PU, PBS, PLA, PAN and / or glass.
• the overall lacquer layer has at least one release layer and / or at least one protective lacquer layer and / or at least one decorative layer and / or at least one primer layer and / or at least one adhesive layer and / or at least one color layer.
• At least one release layer of the at least one release layer preferably comprises a material or a combination of materials selected from: waxes, silicones, polyurethanes and / or polymers, preferably acrylate copolymers, polyester copolymers, polystyrene copolymers, polycarbonate copolymers.
• the tear force indicates the force that has to be used to separate two layers from one another; there is a positive correlation between the tear force of a first layer from a second layer and the flattening between the first and the second layer.
• the flaking of at least one color layer of the at least one color layer on at least one area of the overall lacquer layer of the decorative film that was transferred to a target substrate was determined immediately after printing and one day after printing by means of the following test at room temperature:
• a test pattern in the form of a target substrate with the total lacquer layer applied thereon and printing of at least one color layer on at least one area of the total lacquer layer was placed in a Z005 material testing machine from ZwickRoell GmbH & Co. KG.
• a 13 to 16 cm long strip of Tesa tape of the Tesa brand and type 4104 with a width of 19 mm was glued to the test sample so that about 5 cm to 7 cm of the tape protruded over the edge of the substrate.
• the scotch tape was then pressed on three to four times with the thumb and finally pulled off the test sample at a peel angle of 90 ° and at a speed of 500 mm / min the force measured which was necessary to detach the at least one color layer of the at least one color layer from the overall lacquer layer.
• the test was passed if 90% of the printing ink remained on the test pattern or the test pattern itself was torn.
• LMI low migration
• MGA low migration
• the total lacquer layer has at least one color layer on at least one surface, the adhesive force between at least one color layer of the at least one color layer and the total lacquer layer being at least 25 cN, preferably at least 30 cN.
• At least one release layer of the at least one release layer preferably has a thickness in the range from 0.01 gm to 0.50 gm, preferably from 0.10 gm to 0.30 gm. This comparatively small thickness of the release layer allows the entire lacquer layer to be detached from the carrier film with a sharp edge and cleanly.
• the achievable accuracy and the achievable resolution can correspond comparatively exactly to the layout of the at least one adhesive layer of the at least one adhesive layer applied partially, preferably on the target substrate, without deviating significantly from it, whereby a high register accuracy of the film layout with a possibly existing conventional print layout Printing inks is achievable.
• Register or register or register accuracy or register accuracy is preferably understood to mean a positional accuracy of two or more elements and / or layers.
• the register accuracy should move within a specified tolerance and be as low as possible.
• the register accuracy of several elements, layers, sub-areas relative to one another is an important feature in order to increase process reliability.
• markings in particular by means of sensor marks, preferably optically detectable registration marks or register marks.
• markings in particular registration marks or register marks, preferably represent either special separate elements or areas or layers or are preferably themselves part of the elements or areas or layers to be positioned.
• the small thickness of the detachment layer results in only very small and very few so-called flakes, i.e. small remnants of the overall lacquer layer of the decorative film, which can be disruptive in subsequent process steps and / or disrupt the visual appearance of the coated target substrate. Due to the comparatively small thickness of the release layer, resolutions can be achieved which are below the resolving power of the human eye.
• At least one release layer of the at least one release layer is transparent and / or translucent and / or opaque and / or colored and / or at least partially colored and / or crystal clear.
• the layers of the overall lacquer layer have long-chain, in particular high molecular weight, polymers.
• the layers of the overall lacquer layer have short-chain, in particular low molecular weight, polymers.
• the polymers in particular acrylate copolymers, polyester copolymers, polycarbonate copolymers, polystyrene copolymers and / or SMA copolymers and / or combinations thereof, have a molar mass in the overall lacquer layer Range from 1000 g / mol to 100000 g / mol, preferably from 3000 g / mol to 35000 g / mol.
• the opacity is a measure of the number of defects in a target substrate decorated with a contiguous full area. With a 100% opacity, there are consequently no defects or holes within this full area on the decorated target substrate.
• the defects can occur microscopically, that is to say cannot be resolved by the human eye, or macroscopically, that is to say can be resolved by the human eye.
• a low and homogeneous tear force enables a high covering power of the decoration.
• At least one protective lacquer layer of the at least one protective lacquer layer preferably has a thickness in the range from 0.5 gm to 3 gm, in particular from 0.8 gm to 1.3 gm.
• the protective lacquer layer represents, in particular, protection against mechanical and / or chemical stress on the entire lacquer layer on a target substrate.
• At least one protective lacquer layer of the at least one protective lacquer layer is transparent and / or translucent and / or opaque and / or colored and / or at least partially colored and / or crystal clear.
• At least one decorative layer of the at least one decorative layer comprises at least one metallic layer and / or at least one dielectric layer.
• At least one decorative layer of the at least one decorative layer preferably has a thickness in the range from 8 nm to 500 nm, preferably from 8 nm to 60 nm, particularly preferably from 10 nm to 30 nm.
• the decorative film for UV radiation in the wavelength range from 250 nm to 400 nm has a permeability in the range from 5% to 70%, in particular from 10% to 40% .
• This enables particularly rapid and, in particular, sufficient curing of a cold adhesive based on an adhesive that cross-links under UV radiation on the target substrate possible, whereby the adhesion of the entire lacquer layer to the target substrate is further improved. Only when the amount of irradiation is sufficiently high is the adhesive crosslinking under UV irradiation fully crosslinked and cured and achieves a high bond strength, so that detachment of the entire lacquer layer areas transferred to the target substrate is reliably prevented from the target substrate.
• the decisive factor for the UV permeability of a decorative film is the layer of a decorative film which has the lowest UV permeability of all the layers present.
• At least one metallic layer of the at least one metallic layer comprises a material or a combination of materials selected from: aluminum, silver, gold, copper, nickel, chromium and / or an alloy comprising at least two of these metals.
• HRI High Refractive Index
• HRI High Refractive Index
• a decorative layer has a diffractive and / or refractive relief structure for generating optically variable effects and / or a macrostructure for generating three-dimensional effects or Has depth effects.
• diffractive and / or refractive relief structures which are formed in particular in a transparent lacquer layer or replication lacquer layer, different optical effects, so-called optically variable effects, can be achieved depending on the viewing angle, such as holograms, three-dimensional representations with a kinematic effect depending on the viewing angle, etc.
• a highly reflective metallic layer and / or dielectric HRI layer with a comparatively high to very high refractive index, in particular made of a metal oxide.
• HRI High Refractive Index
• Such a highly reflective layer is preferably formed over the entire surface or in the form of a pattern.
• At least one decorative layer of the at least one decorative layer has at least one replication lacquer layer with a surface structure shaped into at least one replication lacquer layer of the at least one replication lacquer layer, in particular selected from: diffractive surface structure, refractive surface structure, lens structure, matt structure and / or blaze grating .
• At least one decorative layer of the at least one decorative layer to have at least one layer that generates an optically variable effect.
• At least one decorative layer of the at least one decorative layer preferably has at least one reflective layer, in particular at least one reflective layer formed in a pattern in the form of a first item of information. It is also preferably possible for at least one decorative layer of the at least one decorative layer to have at least one color layer shaped like a pattern in the form of a second item of information.
• At least one decorative layer of the at least one decorative layer has at least one thin-film layer element for generating a viewing angle-dependent color shift effect.
• At least one primer layer of the at least one primer layer has a thickness in the range from 0.1 ⁇ m to 2 ⁇ m, preferably from 0.2 ⁇ m to 0.8 ⁇ m.
• At least one primer layer of the at least one primer layer is transparent and / or translucent and / or opaque and / or colored and / or at least partially colored and / or crystal clear.
• at least one primer layer of the at least one primer layer is at least partially colored or colored, the contrast to the target substrate is increased and a particularly high-quality optical impression or effect is brought about.
• At least one primer layer of the at least one primer layer has a surface roughness in the Range from 100 nm to 200 nm, preferably from 120 nm to 160 nm.
• the surface roughness is determined, among other things, by the application method and the formulation of the primer layer. It was found that a lower surface roughness, but surprisingly also a higher surface roughness of the primer layer, leads to a reduction in the achievable adhesion between a cold adhesive and the transfer layer or overall lacquer layer.
• the surface roughness of the primer layer was determined by means of an interference microscope.
• the overall lacquer layer may comprise a plurality of primer layers which differ in their chemical and / or physical properties, so that optimum adhesion is formed to the adjacent layers.
• the overall lacquer layer it is possible on the one hand to achieve optimal adhesion in the direction of at least one decorative layer of the at least one decorative layer and, on the other hand, optimal adhesion in the direction of at least one adhesive layer of the at least one adhesive layer.
• Tesatest a Tesa-proof adhesion
• the transfer layer is achieved between the transfer layer and the substrate, with the Tesatest already after a few minutes when using a conventionally drying cold adhesive and the Tesatest immediately after exposure to UV light when using a UV adhesive could be rated as passed. Over 90% of the transfer layer remained on the target substrate.
• At least one adhesive layer of the at least one adhesive layer covers at least a first area of the overall lacquer layer at least partially or over the entire area.
• At least one adhesive layer of the at least one adhesive layer preferably does not cover at least a second area of the overall lacquer layer, in particular wherein at least a second area of the at least one second area does not overlap or at least partially or over the entire area at least a first area of the at least one first area.
• At least a first area of the at least one first area and / or at least a second area of the at least one second area comprises at least one of the following design elements or a combination of the following design elements: alphanumeric characters, characters, symbols, microscripts, images , Photo, logo, portrait, pictogram, pattern, in particular endless pattern, grid, in particular periodic grid, amplitude-modulated grid, point grid, line grid, motif.
• At least one adhesive layer of the at least one adhesive layer consists of a hot-melt adhesive and / or a thermoplastic adhesive and / or a cold adhesive and / or a radiation-curable adhesive, in particular one by means of electromagnetic radiation and / or electron beams and / or by means of UV radiation.
• the overall lacquer layer ideally tears at the outer edge, in particular at the front edge in the feed direction, of at least one adhesive layer of the at least one adhesive layer.
• the force that has to be used to crack the entire paint layer is known as the crack force.
• the force that has to be applied to tear off the overall paint layer on the rear edge of at least one adhesive layer of the at least one adhesive layer in the feed direction is referred to as the tear-off force.
• the tear force is therefore the force that is required to separate the entire lacquer layer from the carrier film or, analogously, to separate the carrier film from the total lacquer layer adhering to at least one adhesive layer of the at least one adhesive layer.
• a low and homogeneous tear force over the entire surface or area to be decorated enables high coverage and a clean expression.
• the tear force of the overall lacquer layer from the carrier film is in a range from 2 cN to 8 cN.
• the tear force is constant on average, however, due to irregularities in the layer structure of the overall lacquer layer, fluctuations in the tear force can result. It is important to keep these fluctuations in the force amplitude of the tear force as small as possible, so that one can speak of a homogeneous tear force and a high covering power can be achieved. For this reason, it is particularly expedient if the tear force has fluctuations in the force amplitude around its mean value in a range from greater than or equal to -0.5 cN to less than or equal to 0.5 cN.
• the quality of the decoration can be improved by a low and homogeneous tear force.
• the point perception is preferably an indicator for a precise film decoration for individually applied adhesive points.
• precise means that the decoration covers the entire point of glue and does not protrude beyond the point of glue.
• the overall lacquer layer has an opacity when decorating a contiguous full area of greater than or equal to 99.5%, preferably 100%, and a decoration or point perception when decorating a 10% screen tone field of greater than or equal to 99.5%, preferably of 100%.
• any area of a target substrate is provided with adhesive dots in such a way that 10% of the arbitrary area of the target substrate is covered with adhesive dots.
• the points of glue are preferably arranged equidistant, pattern-like, grid-like and / or spaced apart from one another.
• the ratio of the thickness of the carrier film to the thickness of the overall lacquer layer is in a range from 1.8: 1 to 7.0: 1, preferably from 2.5: 1 to 5, 8: 1, wherein the carrier film has a thickness in a range from greater than or equal to 3 ⁇ m to less than or equal to 7 ⁇ m and / or that the ratio of the thickness of the carrier film to the thickness of the overall lacquer is in a range from 4.1: 1 to 10.0: 1, preferably from 4.4: 1 to 8.3: 1, the carrier film having a thickness in a range from greater than or equal to 7 ⁇ m to less than or equal to 10 ⁇ m.
• the overall lacquer layer in step b) it is preferably possible for the overall lacquer layer in step b) to have a thickness in the range from 1.0 ⁇ m to 2.5 ⁇ m, preferably from 1.0 ⁇ m to 1.7 ⁇ m.
• the overall lacquer layer in step b) has at least one release layer and / or at least one protective lacquer layer and / or at least one decorative layer and / or at least one primer layer and / or at least one adhesive layer and / or at least one color layer.
• the at least one adhesive layer as a hot-melt adhesive, a thermoplastic adhesive, a cold adhesive, a radiation-curable adhesive, in particular an adhesive curable by means of electromagnetic radiation and / or electron beams and / or by means of UV radiation, or an oxidatively hardening adhesive and / or a low-migration adhesive is applied.
• step b) further comprises the following step and / or the following step is carried out after step b): c) applying at least one adhesive layer of the at least one adhesive layer in such a way that at least one adhesive layer of the at least one adhesive layer is at least one first area of the overall lacquer layer at least partially or completely covered and / or a second area of the overall lacquer layer not covered, in particular wherein at least a second area of the at least one second area does not or at least partially or completely overlaps at least a first area of the at least one first area.
• the areas not covered with the adhesive layer are then not decorated by the decorative film.
• negative fonts and / or negative patterns can be generated.
• At least a first area comprises the at least one first area and / or at least a second area of the at least one second Area of at least one of the following design elements or a combination of the following design elements: Alphanumeric characters, characters, symbols, microscripts, images, photos, logos, portraits, pictograms, patterns, in particular endless patterns, grids, in particular periodic grids, amplitude-modulated grids, point grids, line grids, Motive.
• the method for decorating a target substrate comprises the following steps, which are carried out in the following order in particular: d) providing a decorative film, e) providing a target substrate, f) applying the decorative film to the target substrate.
• step f) g) Applying at least one adhesive layer to the decorative film in such a way that at least one adhesive layer of the at least one adhesive layer at least partially or completely covers and / or at least a first area of the overall lacquer layer at least one second area of the overall lacquer layer does not cover, in particular at least one second area of the at least one second area does not overlap at least a first area of the at least one first area or at least partially or over the entire area, and / or application of at least one adhesive layer to the target substrate in such a way that at least one adhesive layer of the at least one adhesive layer covers at least a third area of the target substrate at least partially or over the entire area and / or does not cover at least a fourth area of the target substrate, in particular wherein at least a fourth area of the at least one fourth area does not overlap or at least partially or completely overlaps at least a third area of the at least one third area.
• the first and second areas are preferably located in a plane spanned by the overall lacquer layer. It is provided in particular that the spanned plane comprises at least one surface of the overall lacquer layer.
• the third and fourth areas are preferably located in a plane spanned by the target substrate. It is provided in particular that the spanned plane comprises at least one surface of the target substrate.
• the first and second regions can preferably be arranged next to one another, at a distance from one another, partially overlapping and / or overlapping over the entire area. Furthermore, it is also provided in particular that the third and fourth areas are arranged next to one another, spaced apart from one another, partially overlapping and / or overlapping one another over the full area.
• At least a first and / or third area of the at least one first and / or third area and / or at least one second and / or fourth area of the at least one second and / or fourth area at least one of the following design elements or comprises a combination of the following design elements: alphanumeric characters, characters, symbols, microscripts, images, photos, logos, portraits, pictograms, patterns, in particular endless patterns, grids, especially periodic grids, amplitude-modulated grids, point grids, line grids, motifs.
• At least one adhesive layer of the at least one adhesive layer in step g) is preferably composed of a hot melt adhesive, a thermoplastic adhesive, a cold adhesive, a radiation-curable adhesive, in particular one by means of electromagnetic radiation and / or electron radiation and / or by means of UV radiation curable adhesive, and / or an oxidatively curing adhesive and / or a low-migration adhesive formed.
• step g) at least one adhesive layer of the at least one adhesive layer is preferably applied by means of gravure printing and / or screen printing and / or letterpress and / or pad printing and / or inkjet printing and / or offset printing and / or flexographic printing and / or casting techniques.
• At least a first and / or third area of the at least one first and / or third area is decorated by the overall lacquer layer and / or at least a second and / or fourth area of the at least one second and / or fourth area is not decorated by the entire lacquer layer is decorated.
• At least a first and / or third area of the at least one first and / or third area, which is at least partially or completely covered by the at least one adhesive layer of the at least one adhesive layer, is decorated by the overall lacquer layer.
• At least one color layer is applied to at least one surface of the overall lacquer layer after step f) so that the adhesive force between at least one color layer of the at least one color layer and the overall lacquer layer is at least 25 cN, preferably at least 30 cN.
• the overall lacquer layer after step f) has an opacity when decorating a continuous full area of greater than or equal to 99.5%, preferably of 100%, and a decoration or point perception when decorating a 10% screen tone field of greater than or equal to equal to 99.5%, preferably of 100%. Furthermore, it is particularly provided that after step f) the following step is carried out:
• peeling off the carrier film from the entire lacquer layer the peel angle between the carrier film and the total lacquer layer being in a range from 0 ° to 120 °, preferably from 0 ° to 90 °.
• step f) it is possible for the following step to be carried out in step f) and / or after step f): h) pressing the decorative film on with at least one pressure stamp and / or at least one pressure roller.
• At least one pressure stamp of the at least one pressure stamp and / or at least one pressure roller of the at least one pressure roller in step h) is configured as a heated surface and / or shaped stamp and / or a heated roller is configured, this being At least one adhesive layer of the at least one adhesive layer is activated at least partially and / or in at least a first and / or third area of the at least one first and / or third area and connects the decorative film to the target substrate.
• Fig. 1 shows a sectional view of a decorative film
• Fig. 2 shows a further sectional view of a decorative film
• Fig. 3 shows a sectional view of a target substrate, wherein on the
• Target substrate is applied at least one adhesive layer 4 shows a sectional view of a decorated target substrate
• Fig. 5 shows a further sectional view of a decorated
• FIG. 6 shows a schematic representation of a method for setting a decorative film
• FIG. 7 shows a schematic representation of a method for decorating a target substrate
• FIG. 8 shows a schematic representation of a method for decorating a target substrate
• 9a shows the tear force measurement for a decorative film with a carrier film thickness of 5.7 ⁇ m
• 9b shows the tear force measurement for a decorative film with a carrier film thickness of 12 ⁇ m
• 10a shows the decorated 10% screen tone field of a decorative film with a carrier film thickness of 5.7 ⁇ m
• 10b shows the decorated 10% screen tone field of a decorative film with a carrier film thickness of 12 ⁇ m
• 11a shows a schematic representation of a decorative film with a carrier film thickness of 5.7 ⁇ m
• a neutral fiber being shown
• 11b shows a schematic representation of a decorative film with a carrier film thickness of 12 ⁇ m, a neutral fiber being drawn in
• FIG. 1 shows a sectional view of a decorative film 40, in particular a laminating film, cold stamping film or hot stamping film, comprising a carrier film 42 and an overall lacquer layer 41, the carrier film having a thickness in the range from 3.0 ⁇ m to 10.0 ⁇ m.
• the overall lacquer layer 41 it is possible for the overall lacquer layer 41 to have a thickness in the range from 1.0 ⁇ m to 2.5 ⁇ m, in particular from 1.0 ⁇ m to 1.7 ⁇ m.
• the overall lacquer layer 41 comprises a release layer 43, a protective lacquer layer 44, a decorative layer 45 and a primer layer 46.
• the overall lacquer layer 41 has at least one release layer 43 and / or at least one protective lacquer layer 44 and / or at least has a decorative layer 45 and / or at least one primer layer 46 and / or at least one adhesive layer 47 and / or at least one color layer.
• the ratio of the carrier film thickness to the total lacquer layer thickness is in a range from 1.8: 1 to 7.0: 1, preferably from 2.5: 1 to 5.8: 1, the carrier film 42 having a thickness in a range from greater than or equal to 3 pm to less than or equal to 7 pm and / or that the ratio of the carrier film thickness to the total lacquer layer thickness is in a range from 4.1: 1 to 10.0: 1, preferably from 4.4: 1 to 8 , 3: 1, the carrier film 42 having a thickness in a range from greater than or equal to 7 ⁇ m to less than or equal to 10 ⁇ m. It is particularly advantageous if the decorative film 40 has a permeability in the range from 5% to 70%, in particular from 10% to 40%, for UV radiation in the wavelength range from 250 nm to 400 nm.
• the carrier film 42 preferably comprises a material or a combination of materials selected from: PET, PMMA, PC, PE, PVC, PS, ABS, PU PBS, PLA, PAN and / or glass.
• At least one release layer 43 of the at least one release layer 43 preferably has a thickness in the range from 0.01 gm to 0.50 gm, preferably from 0.10 gm to 0.30 gm.
• At least one release layer 43 of the at least one release layer 43 preferably comprises a material or a combination of materials selected from: waxes, silicones, polyurethanes and / or polymers, preferably acrylate copolymer, polyester copolymer, polycarbonate copolymer, polystyrene copolymer.
• At least one release layer 43 of the at least one release layer 43 is transparent and / or translucent and / or opaque and / or colored and / or at least partially colored and / or crystal clear.
• the protective lacquer layer 44 is an optional layer which serves in particular to protect the decorative layer 45 from mechanical and / or chemical stress.
• the protective lacquer layer 44 is in particular a lacquer layer based on nitrocellulose and acrylate polymers, polyester copolymers, polycarbonate copolymers, polystyrene copolymers and / or SMA copolymers.
• At least one protective lacquer layer 44 of the at least one protective lacquer layer 44 preferably has a thickness in the range from 0.5 gm to 3 gm, in particular from 0.8 gm to 1.3 gm.
• At least one protective lacquer layer 44 of the at least one protective lacquer layer 44 is transparent and / or translucent and / or opaque and / or colored and / or at least partially colored and / or crystal clear.
• At least one protective lacquer layer 44 of the at least one protective lacquer layer 44 comprises a material or a material combination selected from: polymers, in particular acrylate copolymers, polyester copolymers, polystyrene copolymers, polycarbonate copolymers, and / or SMA copolymers.
• the polymers, in particular acrylate copolymers and / or SMA copolymers, polyester copolymers, polycarbonate copolymers, polystyrene copolymers or combinations thereof, of the overall lacquer layer 41 preferably have a molar mass in the range from 1000 g / mol to 100,000 g / mol, preferably from 3000 g / mol to 35000 g / mol.
• At least one decorative layer 45 of the at least one decorative layer 45 comprises at least one metallic layer and / or at least one dielectric layer.
• At least one metallic layer of the at least one metallic layer comprises a material or a combination of materials selected from: aluminum, silver, gold, copper, nickel, chromium and / or an alloy comprising at least two of these metals.
• at least one dielectric layer of the at least one dielectric layer comprises a material or a material combination selected from: metal oxide, polymer, lacquer and / or HRI material, in particular MgO, TiOn, Al2O3, ZnO, ZnS and / or SiOn, the variable n preferably being in the range from greater than or equal to 0 to less than or equal to 3.
• At least one decorative layer 45 of the at least one decorative layer 45 has a thickness in the range from 8 nm to 500 nm, preferably from 8 nm to 60 nm, particularly preferably from 10 nm to 30 nm.
• at least one metallic layer of the at least one metallic layer has a thickness in the range from 8 nm to 60 nm, preferably from 10 nm to 30 nm. This layer thickness guarantees that a high level of permeability for UV radiation is achieved for at least one metallic layer of the at least one metallic layer.
• At least one decorative layer 45 of the at least one decorative layer 45 it is possible for at least one decorative layer 45 of the at least one decorative layer 45 to have at least one layer that generates an optically variable effect. In this way, particularly high-quality optical properties of the decorative film 40 can be achieved. It is also possible that these are security elements that are preferably forgery-proof. Furthermore, it is preferred that at least one decorative layer 45 of the at least one decorative layer 45 has at least one replication lacquer layer with a surface structure molded into at least one replication lacquer layer of the at least one replication lacquer layer, in particular selected from: diffractive surface structure, refractive surface structure, lens structure, matt structure and / or blaze. Grid.
• At least one decorative layer 45 of the at least one decorative layer 45 has at least one reflective layer, in particular has at least one reflective layer formed in a pattern in the form of a first item of information.
• At least one decorative layer 45 of the at least one decorative layer 45 has at least one color layer shaped in a pattern in the form of a second item of information.
• At least one decorative layer 45 of the at least one decorative layer 45 to have at least one thin-film layer element for generating a viewing angle-dependent color shift effect.
• At least one primer layer 46 of the at least one primer layer 46 has a thickness in the range from 0.1 ⁇ m to 2 ⁇ m, particularly preferably from 0.2 ⁇ m to 0.8 ⁇ m.
• At least one primer layer 46 of the at least one primer layer 46 is transparent and / or translucent and / or opaque and / or colored and / or at least partially colored and / or crystal clear.
• at least one primer layer 46 of the at least one primer layer 46 is at least partially colored and / or colored, there is the advantage of that the contrast to the target substrate 10 is increased and this brings about a particularly high-quality optical impression or effect.
• At least one primer layer 46 of the at least one primer layer 46 has a surface roughness in the range from 100 nm to 200 nm, preferably from 120 nm to 160 nm.
• the overall lacquer layer 41 may comprise a plurality of primer layers 46 which differ in their chemical and / or physical properties, so that optimum adhesion is formed with the adjacent layers.
• primer layers 46 which differ in their chemical and / or physical properties, so that optimum adhesion is formed with the adjacent layers.
• the decorative film 40 is shown with the same structure as shown in FIG. 1, except that an adhesive layer 47 covers a surface of the overall lacquer layer 41 in the first areas 21 and does not cover it in the second areas 22.
• At least one adhesive layer 47 of the at least one adhesive layer 47 covers at least a first area 21 of the overall lacquer layer 41 at least partially or over the entire area.
• At least one adhesive layer 47 of the at least one adhesive layer 47 does not cover at least one second area 22 of the overall lacquer layer 41, in particular at least one second area 22 of the at least one second area 22 at least one first area 21 of the at least one first area 21 does not overlap or at least partially or over the entire area.
• At least a first area 21 of the at least one first area 21 and / or at least a second area 22 of the at least one second area 22 comprises at least one of the following design elements or a combination of the following design elements: Alphanumeric characters, characters, symbols , Micro-font, image, photo, logo, portrait, pictogram, pattern, in particular endless patterns, grids, in particular periodic grids, amplitude-modulated grids, point grids, line grids, motifs. This allows individual design options to be implemented that create a particularly high-quality impression on the viewer.
• At least one adhesive layer 47 of the at least one adhesive layer 47 made of a hot melt adhesive and / or a thermoplastic adhesive and / or a cold adhesive and / or a radiation-curable adhesive, in particular one by means of electromagnetic radiation and / or electron radiation and / or by means of UV radiation curable adhesive, and / or an oxidatively curing adhesive and / or a low-migration adhesive is formed.
• the decorative film 40 can be applied to the target substrate 10 by means of cold embossing, for example when using a cold adhesive and / or an adhesive curable by means of UV radiation, or, for example when using a thermoplastic adhesive, can be applied to the target substrate by means of hot embossing by the at least one adhesive layer 47 of the at least one adhesive layer 47, which comprises a thermoplastic adhesive, is activated by means of a heated pressure stamp and / or a pressure roller.
• FIG 3 shows a sectional illustration of the target substrate 10, a surface of the target substrate 10 being covered with at least one adhesive layer 47 in the third regions 23 and not being covered in the fourth regions 24.
• at least one adhesive layer 47 of at least one adhesive layer 47 is applied in at least a third region 23 of the at least one third region 23 before the decorative film 40 is applied to the target substrate 10 and is not applied in a fourth region 24 of the at least one fourth region 24.
• At least one adhesive layer 47 of the at least one adhesive layer 47 may cover at least one surface of the target substrate 10 over the entire area.
• a decorated target substrate is shown in its sectional illustration in FIG. 4.
• at least one adhesive layer 47 of the at least one adhesive layer 47 is arranged on a target substrate 10 in such a way that it completely covers one surface of the target substrate 10.
• the decorated target substrate further comprises an overall lacquer layer
• the carrier 42 having already been peeled off from the decorative film 40. It can preferably also be provided that the carrier
• the release layer 43 is also transferred to the target substrate 10 and does not or only partially remains on the carrier film 42. In an alternative embodiment not shown in detail, it is also possible that the release layer 43 remains or only remains on the removed carrier film 42 very few areas of the release layer 43 are also transferred to the target substrate 10.
• FIG. 5 a further alternative for a decorated target substrate is shown in the sectional illustration.
• at least a third area 23 of the at least one third area 23 is decorated by the overall lacquer layer 41 and at least a fourth area 24 of the at least one fourth area 24 is not decorated by the overall lacquer layer 41.
• at least a first and / or third area 21, 23 of the at least one first and / or third area 21, 23 to be decorated by the overall lacquer layer 41 and / or at least a second and / or fourth area 22, 24 of the at least one second and / or fourth area 22, 24 is not decorated by the overall lacquer layer 41.
• the total lacquer layer 41 has at least one color layer on at least one surface, the adhesive force between at least one color layer of the at least one color layer and the total lacquer layer 41 being at least 25 cN, preferably at least 30 cN.
• FIG. 6 shows a schematic representation of a method for producing a decorative film 40, the method comprising the following steps, which are carried out in the following sequence in particular: a) Providing a carrier film 42, the carrier film 42 having a thickness in the range of 3.0 gm to 10.0 gm, b) applying an overall lacquer layer 41 to at least one area of at least one surface of the carrier film 42, a decorative film 40 being formed.
• the overall lacquer layer 41 in step b) prefferably has a thickness in the range from 1.0 gm to 2.5 gm, preferably from 1.0 gm to 1.7 gm.
• the ratio of the carrier film thickness to the total lacquer layer thickness is in a range from 1.8: 1 to 7.0: 1, preferably from 2.5: 1 to 5.8: 1, the carrier film 42 having a thickness in a range from greater than or equal to 3 gm to less than or equal to 7 gm and / or that the ratio of the carrier film thickness to the total lacquer layer thickness in a range from 4.1: 1 to 10.0: 1, preferably from 4.4: 1 to 8.3: 1, with the Carrier film 42 has a thickness in a range from greater than or equal to 7 ⁇ m to less than or equal to 10 ⁇ m.
• the overall lacquer layer in step b) has at least one release layer 43 and / or at least one protective lacquer layer 44 and / or at least one decorative layer 45 and / or at least one primer layer 46 and / or at least one adhesive layer 47 and / or at least one color layer having.
• At least one release layer 43 of the at least one release layer 43 and / or at least one protective lacquer layer 44 of the at least one protective lacquer layer 44 and / or at least one decorative layer 45 of the at least one decorative layer 45 and / or at least one primer layer 46 of the at least one Primer layer and / or at least one adhesive layer 47 of the at least one adhesive layer 47 and / or at least one colored layer of the at least one colored layer by means of gravure printing and / or screen printing and / or floch printing and / or pad printing and / or inkjet printing and / or offset printing and / or flexographic printing and / or casting techniques is applied.
• the at least one adhesive layer 47 is used as a hot-melt adhesive, a thermoplastic adhesive, a cold adhesive, a radiation-curable adhesive, in particular an adhesive curable by means of electromagnetic radiation and / or electron beams and / or by means of UV radiation, or an oxidatively hardening adhesive and / or a low-migration adhesive is applied. It is furthermore also possible for the adhesive layer 47 to be at least partially applied to a surface of the overall lacquer layer 41.
• step b) further comprises the following step and / or the following step is carried out after step b): c) applying at least one adhesive layer 47 of the at least one adhesive layer 47 in such a way that at least one adhesive layer 47 of the at least an adhesive layer 47 covers at least a first area 21 of the overall lacquer layer 41 at least partially or over the entire area and / or does not cover a second area 22 of the overall lacquer layer 41, in particular with at least one second area 22 of the at least one second area 22 at least one first area 21 of the at least one first area 21 does not overlap or at least partially or over the full area.
• At least a first area 21 of the at least one first area 21 and / or at least a second 22 area of the at least one second area 22 comprises at least one of the following design elements or a combination of the following design elements: Alphanumeric characters, characters, Symbol, micro-font, image, photo, logo, portrait, pictogram, pattern, in particular endless pattern, grid, in particular periodic grid, amplitude-modulated grid, point grid, line grid, motif.
• a method for decorating a target substrate 10 is shown schematically in FIG. 7, the method comprising the following steps, which are carried out in particular in the following sequence: d) providing a decorative film 40 e) providing a target substrate 10 f) applying the decorative film 40 onto the target substrate 10.
• step f) g) applying at least one adhesive layer 47 to the decorative film 40 in such a way that at least one adhesive layer 47 of the at least one adhesive layer 47 at least partially or fully covers at least a first area 21 of the overall lacquer layer 41 and / or does not cover at least a second area 22 of the overall lacquer layer 41,
• at least one second area 22 of the at least one second area 22 does not overlap or at least partially or completely overlaps at least one first area 21 of the at least one first area 21, and / or applying at least one adhesive layer 47 to the target substrate 10 in such a way that at least one adhesive layer 47 of the at least one adhesive layer 47 covers at least one third area 23 of the target substrate 10 at least partially or over the entire area and / or does not cover at least one fourth area 24 of the target substrate 10, in particular with at least one fourth area 24 of the at least one fourth area 24 at least one third area 23 of the at least one third area 23 does not
• At least one first and / or third area 21, 23 of the at least one first and / or third area 21, 23 and / or at least one second and / or fourth area 22, 24 of the at least one second and / or fourth area 22, 24 comprises at least one of the following design elements or a combination of the following design elements: Alphanumeric characters, characters, symbols, microscripts, images, photos, logos, portraits, pictograms, patterns, in particular endless patterns, grids, in particular periodic grids, amplitude-modulated Grid, point grid, line grid, motif.
• step g) at least one adhesive layer 47 of the at least one adhesive layer 47 by means of gravure printing and / or screen printing and / or letterpress and / or pad printing and / or inkjet printing and / or offset printing and / or flexographic printing and / or casting techniques is applied.
• At least one color layer is applied to at least one surface of the overall lacquer layer 41 after step f), so that the adhesive force between at least one color layer of the at least one color layer and the overall lacquer layer 41 is at least 25 cN, preferably of at least 30 cN .
• the overall lacquer layer 41 after step f) has an opacity when decorating a continuous full area of greater than or equal to 99.5%, preferably 100%, and a decoration or point perception when decorating a 10% screen tone field of greater than or equal to 99.5%, preferably 100%.
• step f) and / or after step f) the following step is carried out: h) pressing the decorative film 40 with at least one pressure stamp and / or at least one pressure roller.
• at least one pressure stamp of the at least one pressure stamp and / or at least one pressure roller of the at least one pressure roller in step h) is configured as a heated surface and / or shaped stamp and / or a heated roller is configured, wherein this at least one adhesive layer 47 of the at least one adhesive layer 47 is activated at least partially and / or in at least one first and / or third area 21, 23 of the at least one first and / or third area 21, 23 and the decorative film 40 with the target substrate 10 connects.
• At least one adhesive layer 47 of the at least one adhesive layer 47 is applied to at least one first and / or third area 21, 23 of the at least one and / or third area 21, 23 and a decoration takes place in this area. So that decoration only takes place in the area mentioned, the so-called tear force must be overcome.
• the tear force is the force that has to be overcome when transferred to a surface or area to be decorated so that there are defined local breaks in the overall lacquer layer 41 of the decorative film 40 and a sharp-edged decoration of the surface or area to be decorated enables.
• the outer edge, in particular the front edge in the feed direction, of at least one adhesive layer 47 of the at least one adhesive layer 47 is called Marked edge.
• the overall lacquer layer 41 breaks precisely and in a defined manner at this tear edge, so that at least one adhesive layer 47 of the at least one adhesive layer 47, which is in at least one first and / or third area 21, 23 of the at least one first and / or third area 21, 23 is applied, the decoration is predefined.
• the outer rear edge of the adhesive layer 47 in the feed direction is referred to as the tear-off edge.
• the overall lacquer layer 41 also breaks precisely and in a defined manner at this tear-off edge, so that at least one adhesive layer 47 of the at least one adhesive layer 47, which is in at least one first and / or third area 21, 23 of the at least one first and / or third Area 21, 23 is applied, the decoration is predefined.
• the surface to be decorated or the area to be decorated is decorated by detaching the overall lacquer layer 41 from the carrier film 42.
• the force required for this is referred to as the tear force and is generally less than the tear force. since the overall lacquer layer 41 does not have to be broken through.
• the general rule is that a low and homogeneous tear force over the entire area to be decorated ensures high coverage and the number of decoration defects is reduced.
• FIG. 9a and 9b are examples of the force curves of the tear force for a decorative film 40 according to the invention with a thickness of the carrier film 42 of 5.7 ⁇ m (FIG. 9a) and a decorative film 40 according to the prior art (FIG. 9b) with a The thickness of the carrier film 42 of 12 ⁇ m is shown, the tear force being indicated in cN over the path in mm.
• the two tested decorative films 40 have the identical layer structure and the identical one Material composition, except that the carrier film thicknesses are different.
• the carrier film 42 to be peeled off has a width of 13.5 mm and a length of 41 mm in both tests.
• the release of the carrier film 42 takes place in the longitudinal direction at a speed of 100 mm / min.
• the mean value of the tear force for a decorative film 40 with a carrier film thickness of 5.7 ⁇ m is approximately 2.75 cN (see FIG. 9a), whereas the mean value of the tear force for a decorative film 40 with a carrier film thickness of 12 ⁇ m is approximately 4 , 5 cN (see Fig. 9b).
• the fluctuations in the force amplitude are lower for a decorative film 40 with a carrier film thickness of 5.7 ⁇ m (FIG. 9a) than for a decorative film 40 with a carrier film thickness of 12 ⁇ m ( Fig. 9b).
• the fluctuations in the force amplitude are less than ⁇ 0.5 cN for a decorative film 40 with a carrier film thickness of 5.7 ⁇ m, whereas for a decorative film 40 with a carrier film thickness of 12 ⁇ m, fluctuations in the force amplitude around the mean value of up to ⁇ 1 cN occur.
• both the absolute tear force in a decorative film 40 with a carrier film thickness of 5.7 ⁇ m is lower than in the case of a decorative film 40 with a carrier film thickness of 12 ⁇ m, as well as the fluctuations in the force amplitude around its mean value in the case of a decorative film 40 with a carrier film thickness of 5.7 ⁇ m are significantly smaller than in the case of a decorative film 40 with a carrier film thickness of 12 ⁇ m.
• the carrier film 42 of which has a thickness in the range from 3 ⁇ m to 10 ⁇ m the tear force behaves particularly homogeneously, which results in an improved decoration and an improved covering power.
• a target substrate 10 without decorative film 40 is scanned with a scanner with a resolution of 1200 dpi and the number of adhesive points is counted.
• the resulting image is also known as the glue image.
• FIGS. 11a and 11b are also given explanatory notes, in which a neutral fiber 50 for a decorative film 40 with a carrier film thickness of 5.7 ⁇ m (FIG. 11a) and for a decorative film 40 with a carrier film thickness of 12 ⁇ m (FIG. 11 b ) is shown.
• the neutral fiber 50 runs along the geometric center plane or center line of the decorative film 40.
• the neutral fiber 50 is that fiber, the length of which does not change when twisted and / or bent, ie no tensile stresses or compressive stresses act on the neutral fiber 50. Tensions.
• the distance x from the neutral fiber to the overall lacquer layer 41 is also shown.
• the normal stress of the overall lacquer layer 41 as a result of bending is then also reduced.
• the reduced normal stress of the overall lacquer layer 41 in the case of a decorative film 40 with a carrier film thickness in the range from 3 ⁇ m to 10 ⁇ m ensures that undefined and / or random local breaks in the overall lacquer layer 41 do not occur even before the carrier film is detached. This enables a clean expression or a very high point perception to be achieved.
• the tear force has fluctuations in the force amplitude around its mean value in a range from greater than or equal to -0.5 cN to less than or equal to 0.5 cN.
• the overall lacquer layer 41 has an opacity when decorating a contiguous full area of greater than or equal to 99.5%, preferably 100%, and a decoration or point perception when decorating a 10% screen tone field of greater than or equal to 99 , 5%, preferably 100%.
• the tear force of the overall lacquer layer 41 from the carrier film 42 to be in a range from 2 cN to 8 cN.

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