Disclosure of Invention
The invention aims to provide a pearlescent transfer film and a preparation method and application thereof. The pearlescent transfer film has the advantages of gorgeous color, full brightness, good thermoprinting effect, good weather resistance, scratch resistance, wear resistance, good water resistance, acid and alkali resistance and corrosion resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pearly-luster transfer film comprises a base material layer, a UV release layer, a stabilizing layer, a pearly-luster image-text layer, an ink image-text layer and an adhesive layer from top to bottom in sequence; the substrate layer is a PET film; the UV release layer is composed of UV gloss oil; the stabilizing layer is composed of a stabilizing agent; the pearlescent image-text layer is made of pearlescent binder; the printing ink image-text layer is formed by printing ink; the adhesive layer is composed of hot melt adhesive.
Preferably, the thickness of the PET film is 19-25 um.
Preferably, the stabilizer comprises the following raw materials in percentage by weight: 9-18% of vinyl chloride-vinyl acetate resin, 15-30% of polyurethane resin, 10-25% of polyacrylate resin, 5-15% of polyketone resin, 11-29% of filler, 0-2% of auxiliary agent and 15-50% of solvent.
More preferably, the filler is at least one of a matte powder, calcium carbonate, or wax powder.
More preferably, the auxiliary agent is at least one of a leveling agent, modified chlorinated polypropylene or chlorinated polyester acrylate.
More preferably, the solvent is at least one of toluene, butanone, ethyl acetate, or n-propyl acetate.
Function of the stabilizer layer: the UV release layer and the pearlescent image-text layer are effectively and firmly combined together, so that the connection quality between the UV gloss oil and the pearlescent image-text layer is improved, and particularly, excellent bonding performance is embodied by taking the chloroacetic resin, the polyurethane resin, the polyacrylate resin and the polyketone resin as connecting materials.
Preferably, the preparation method of the stabilizing agent comprises the following steps: (1) premixing a solvent and vinyl chloride-vinyl acetate copolymer in a reaction kettle, heating to 60-65 ℃, and dissolving within 45-60 minutes; (2) adding polyketone resin and an auxiliary agent into the dissolved reaction kettle, and stirring; (3) then adding polyurethane resin, acrylic resin and filler and mixing; (4) dispersing for 30-40 min after mixing, adding the solvent and mixing for 15-20 min to obtain the product.
Preferably, the pearlescent vehicle comprises the following raw materials in percentage by weight: 5-15% of cellulose liquid, 5-10% of vinyl chloride-acetate resin liquid, 10-15% of pearl powder and 50-70% of organic solvent.
More preferably, the pearl powder is one or two of copper powder and aluminum powder.
More preferably, the organic solvent is at least one of methyl isobutyl butanone, isopropanol or ethyl acetate.
Preferably, the preparation method of the pearlescent vehicle comprises the following steps: (1) stirring the organic solvent, and adding the pearl powder in the stirring process to obtain pearl liquid; (2) mixing the cellulose solution and the vinyl chloride-acetate resin solution, and stirring for 10-15 minutes; (3) slowly adding the pearlescent liquid prepared in the step (1) into the step (2), and stirring for 5-20 minutes to obtain the pearlescent liquid.
Preferably, the ink comprises the following raw materials in percentage by weight: 1-5% of synthetic resin, 3-10% of acrylic resin, 2-10% of vinyl chloride-vinyl acetate copolymer resin, 10-40% of pigment and 30-60% of solvent.
More preferably, the synthetic resin is a chlorohydrin resin.
More preferably, the pigment is one of iron oxide red powder, permanent yellow powder, titanium dioxide, carbon black, titanium blue powder and ultramarine powder.
More preferably, the solvent is at least one of ethyl acetate, methyl isobutyl butanone and isopropanol.
Preferably, the preparation method of the ink comprises the following steps: (1) stirring the synthetic resin, the vinyl chloride-vinyl acetate copolymer resin and a part of solvent to obtain a resin mixed solution; (2) mixing acrylic resin with part of solvent to obtain acrylic resin liquid; (3) and uniformly mixing the resin mixed solution, the acrylic resin solution, the pigment and the rest solvent to obtain the acrylic resin coating.
A preparation method of the pearlescent transfer film comprises the following steps:
(1) coating UV gloss oil on the surface of the PET film, and curing by ultraviolet light to form a UV release layer;
(2) coating a stabilizer on the surface of the UV release layer, drying by hot air to form a stable layer, printing a pearly-luster connecting material, then performing plate roller drying by hot air to obtain a pearly-luster image-text layer;
(3) and continuously printing ink, drying by hot air to obtain an ink image-text layer, and coating hot melt adhesive to form an adhesive layer, thus obtaining the pearlescent transfer film.
Preferably, the UV gloss oil is mainly prepared from the following raw materials in percentage by weight: 30-50% of acrylic resin, 10-20% of epoxy resin oligomer, 10-20% of polyester resin, 5-12% of filler, 2-7% of photoinitiator, 0-1% of defoaming agent and 10-30% of solvent.
More preferably, the filler is talc.
More preferably, the photoinitiator is 1-hydroxy-cyclohexyl-benzophenone.
More preferably, the defoamer is one or both of polydimethylsiloxane or polyether modified siloxane.
More preferably, the solvent is one or two of butyl ester or ethyl ester
Preferably, the preparation method of the UV gloss oil comprises the following steps: (1) adding resin monomers including acrylic acid, epoxy oligomer and polyester resin, a photoinitiator and a solvent into a reaction kettle, and stirring at the reaction temperature of 40-50 ℃ for 45-60 minutes; (2) adding a defoaming agent, stirring, adding a filler in the stirring process, and stirring for 5-15 minutes; (3) continuously stirring for 20-30 min, and cooling to obtain the final product.
Preferably, the hot melt adhesive is mainly prepared from the following raw materials in percentage by weight: 20-30% of binder, 0-20% of filler, 0-3% of auxiliary agent and 40-60% of solvent; the continuous adhesive is at least one of a chloro-acetic copolymer and polyvinyl alcohol.
More preferably, the filler is calcium carbonate. Calcium carbonate prevents sedimentation and facilitates leveling.
More preferably, the adjuvant is a polyether modified siloxane.
More preferably, the solvent is at least one of methyl isobutyl butanone and toluene.
Preferably, the preparation method of the hot melt adhesive comprises the following steps: (1) premixing a solvent and a binder; (2) heating to 60-70 deg.C for 30-45 min for dissolving; (3) adding an auxiliary agent into the dissolved reaction kettle, stirring, and then adding a filler for dispersing for 30-40 minutes; (4) adding the solvent, and continuously stirring for 15-20 minutes to obtain the product.
Preferably, in step (1), the dry weight of the coating is 1 to 5g/m2。
Preferably, in step (2), the dry weight of the coating is 0.5-1.5g/m2。
Preferably, in step (2), the dry weight of the printing is 2 to 10g/m2。
Preferably, in the step (2), the plate roll is a gravure plate roll laser engraved with 40 to 60 lines.
Preferably, in step (3), the dry weight of the printing is 4-15g/m2。
Preferably, in step (2), the dry weight of the coating is 3 to 20g/m2。
The invention also provides application of the pearlescent transfer film in preparation of the artificial decorative board.
Preferably, the artificial board is one of a density board, a solid wood particle board, an inorganic board or a fragrant board.
A preparation method of a decorative artificial board comprises the following steps: transferring the pearly-luster transfer film to the surface of an artificial board, tearing off a PET (polyethylene terephthalate) base film, rolling and coating a UV (ultraviolet) primer, then pasting a PETG (polyethylene terephthalate-1, 4-cyclohexane dimethanol) film, and drying by an ultraviolet lamp to obtain the artificial board.
Preferably, the temperature of the transfer printing is 180-220 ℃, and the pressure is 5-7kg/cm2。
The invention has the advantages that:
(1) the pearlescent transfer film disclosed by the invention has the advantages of gorgeous color, full brightness, good hot stamping effect, good weather resistance, scratch resistance, wear resistance, good water resistance, acid and alkali resistance and corrosion resistance.
(2) The UV release layer and the pearlescent decorative layer are effectively and firmly combined together by using the stabilizer, so that the connection quality between the UV gloss oil and the pearlescent decorative layer is improved, and the printing effect is excellent.
(3) According to the invention, the UV release layer is prepared by using the UV gloss oil, so that the release effect is provided, and meanwhile, the UV release layer has excellent adhesive force with the UV adhesion primer when a decoration panel is manufactured by subsequent processing, and the transfer film has certain performances of scratch resistance, chemical pollution resistance and the like.
Detailed Description
For a further understanding of the invention, preferred embodiments of the invention are described below with reference to the examples to further illustrate the features and advantages of the invention, and any changes or modifications that do not depart from the gist of the invention will be understood by those skilled in the art to which the invention pertains, the scope of which is defined by the scope of the appended claims.
Those who do not specify specific conditions in the examples of the present invention follow conventional conditions or conditions recommended by the manufacturer. The raw materials, reagents and the like which are not indicated for manufacturers are all conventional products which can be obtained by commercial purchase.
Examples 1 to 4
The pearly luster transfer film of the embodiment 1-4 comprises a base material layer 100, a UV release layer 200, a stabilizing layer 300, a pearly luster image-text layer 400, an ink image-text layer 500 and an adhesive layer 600 from top to bottom in sequence; the substrate layer 100 is a PET film; the UV release layer 200 is composed of UV gloss oil; the stabilizer layer 300 is composed of a stabilizer; the pearlescent image-text layer 400 is composed of pearlescent binder; the ink image-text layer 500 is made of ink; the adhesive layer 600 is composed of a hot melt adhesive.
The UV gloss oils of examples 1-4 were prepared with the components in the weight percentages shown in Table 1:
TABLE 1
The method of making the UV varnish of examples 1-4, comprising the steps of:
(1) adding resin monomers including acrylic resin, epoxy oligomer and polyester resin, 1-hydroxy-cyclohexyl-benzophenone and butyl ester into a reaction kettle, and stirring at the reaction temperature of 40-50 ℃ for 45-60 minutes; (2) after dissolving, adding polydimethylsiloxane, stirring, adding talcum powder in the mixing process, and stirring at high speed for 5-15 minutes; (3) stirring at medium speed for 20 min until the talcum powder is completely dissolved, and cooling to obtain the final product.
The stabilizers of examples 1-4 were carried out as the components in the weight percentages indicated in table 2:
TABLE 2
A process for preparing the stabilizers of examples 1-4 comprising the steps of:
(1) premixing a solvent and vinyl chloride-vinyl acetate resin in a reaction kettle; (2) heating to 60-65 deg.C, and dissolving in 45 min; (3) adding polyketone resin and a flatting agent into the dissolved reaction kettle, and stirring at a high speed; (4) adding polyurethane resin, acrylic resin, calcium carbonate, matt powder and wax powder in the mixing process; (5) mixing at high speed for 30-40 min to disperse calcium carbonate, matte powder and wax powder, adding ethyl acetate and butanone, and mixing at medium speed for 15-20 min.
The pearlescent vehicle of examples 1-4 was prepared with the components in the weight percentages shown in table 3:
TABLE 3
A method of making the pearlescent vehicle of examples 1-4 comprising the steps of:
(1) stirring methyl isobutyl butanone and ethyl acetate, and adding copper powder and aluminum powder during stirring to obtain pearlescent liquid; (2) mixing the cellulose solution and the vinyl chloride-acetate resin solution, and stirring for 10-15 minutes; (3) slowly adding the pearlescent liquid prepared in the step (1) into the step (2), and stirring for 5-20 minutes to obtain the pearlescent liquid.
The inks of examples 1-4 were carried out with the components in the weight percentages indicated in table 4:
TABLE 4
The method of making the inks of examples 1-4, including the steps of:
(1) stirring the chlorinated polyether resin, the chlorinated vinegar copolymer resin, part of ethyl acetate and methyl isobutyl butanone to obtain a resin mixed solution; (2) mixing acrylic resin with part of ethyl acetate and methyl isobutyl butanone to obtain acrylic resin liquid; (3) and uniformly mixing the resin mixed solution, the acrylic resin solution, the pigment, the rest ethyl acetate and the methyl isobutyl butanone to obtain the acrylic resin paint.
The hot melt adhesives of examples 1-4 were carried out according to the weight percentage composition shown in table 5:
TABLE 5
The method of preparing the hot melt adhesive of examples 1-4, comprising the steps of:
preferably, the preparation method of the hot melt adhesive comprises the following steps: (1) premixing methyl isobutyl butanone, toluene, a copolymer of chlorine and vinegar and polyvinyl alcohol; (2) heating to 60-70 deg.C for 30-45 min for dissolving; (3) adding polyether modified siloxane into the dissolved reaction kettle, stirring, and then adding calcium carbonate for dispersing for 30-40 minutes; (4) and adding methyl isobutyl butanone and toluene, and continuously stirring for 15-20 min to obtain the final product.
The method for preparing the pearly luster transfer film of the embodiment 1 to 4 includes the following steps:
(1) coating UV gloss oil on the surface of the substrate layer, and drying by ultraviolet light to form a dry weight of 1-5g/m2The UV release layer of (1);
(2) coating stabilizer on the surface of the UV release layer, and hot air drying to obtain a dry weight of 0.5-1.5g/m2Printing a pearl coating, using a 40-60 line laser engraved gravure plate roller, and drying by hot air to obtain the stable layer with the dry weight of 2-10g/m2The pearl image-text layer;
(3) continuously printing the ink, and drying with hot air to obtain a dry weight of 4-15g/m2Coating hot melt adhesive on the ink image-text layer to form a dry weight of 3-20g/m2The adhesive layer is used to obtain the pearly-lustre transfer printing film.
The result of the detection
The pearlescent transfer films prepared in examples 1 to 4 meet the standard limit requirements of the release amount of formaldehyde of GB/T28995-2012 and the general performance standards required by artificial boards by the test of a detection mechanism, as shown in Table 6.
TABLE 6
The foregoing detailed description of the pearlescent transfer film and the method and application of the same provided by the present invention, and the principles and embodiments of the present invention are described herein using specific examples, which are provided only to help understand the method and its core ideas, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any device or system and performing any combined method. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other embodiments are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.