CN110091637B - In-mold heat transfer film of elastic toy ball and production method thereof - Google Patents
In-mold heat transfer film of elastic toy ball and production method thereof Download PDFInfo
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- 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
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- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/10—Esters of organic acids
- C09D101/12—Cellulose acetate
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/16—Esters of inorganic acids
- C09D101/18—Cellulose nitrate
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- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/06—Waxes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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Abstract
The invention discloses an in-mold heat transfer film of an elastic toy ball and a production method thereof, wherein the structure of the heat transfer film comprises a release layer, a printing coating and a transfer printing ink layer, wherein the release layer takes a waxy material as a main component and is sequentially arranged on the upper surface of a film base layer; the production method of the heat transfer film comprises the steps of (a) preparing a release agent, (b) preparing a printing coating, (c) preparing a transfer printing ink, (d) coating, and (e) printing the transfer printing ink; compared with the existing production method, the production method has the advantages of simple process, low equipment requirement and easy realization in production, and a PE film does not need to be compounded on the PVC film, so that the production cost of the heat transfer film is reduced, the PVC film waste after in-mold transfer printing can be recycled, and a large amount of plastic waste which is difficult to treat is avoided.
Description
Technical Field
The invention relates to the technical field of in-mold thermal transfer printing, in particular to an in-mold thermal transfer printing film of an elastic toy ball and a production method thereof.
Background
In-mold thermal transfer printing is a process in which molding and decoration printing are performed simultaneously. By decorating the plastic parts in the molding process, the operation steps of traditional molding decoration, on-line production and inventory and the like are reduced, and therefore the production cost is reduced. In the process, the heat transfer film is guided into a mold through a conveying unit, after the mold is closed, the injected mold filling material of the heat transfer film is pressed into a mold cavity, the temperature and the molding pressure in the mold cavity peel off the decorative layer from the heat transfer film carrier and enable the decorative layer to be combined with the plastic part, and after the mold is cooled, the product can be taken down from the carrier.
The raw materials of the elastic toy ball are usually foamed EVA, PU, rubber and the like, and the in-mold thermal transfer printing is completed during injection molding, so that the elastic toy ball is a novel surface decoration method for toy balls, which is emerging in recent years. The in-mold transfer of spherical surfaces requires that the heat transfer film must have good strength and excellent stretchability. Common thermal transfer film substrate PET membrane, because the elasticity is relatively poor, is difficult to satisfy this kind of requirement, adopts the PVC membrane of certain thickness (50 ~ 100 microns) as the substrate of thermal transfer film to solve this problem usually. Since most of the transfer printing ink on the PVC film is not easy to peel off, how to peel off the decorative printing layer from the PVC film carrier in the in-mold transfer printing process becomes a difficult problem. In the manufacturing method of the in-mold transfer film of the elastic ball in production practice, a thin PE film (10-20 microns in thickness) is compounded on a PVC film in advance, then a cellulose ester resin layer is coated on the PE film to serve as a release layer, then a pattern is printed on the release layer, and ink binder resin with good adhesive force with an elastic material is selected, so that in-mold heat transfer printing is achieved. However, this method also has disadvantages in that it requires a PE film to be previously laminated on a PVC film, which greatly increases the manufacturing cost of the thermal transfer film, and in addition, the PVC film and the PE film are laminated to cause waste of the film after transfer, which is difficult to recycle, and generates a large amount of plastic waste which is difficult to dispose.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the in-mold heat transfer film and the production method thereof, which can recycle the waste PVC film after the transfer printing without compounding a PE film on the PVC film, thereby reducing the production cost of the heat transfer film and avoiding generating a large amount of plastic garbage which is difficult to treat.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an elasticity toy ball's mould internal heat transfer die, its structure includes uses the PVC membrane as the film basic unit, sets gradually and uses waxy material as the printing coating, the rendition printing ink layer of principal component from the type layer, with resin material at film basic unit upper surface.
A production method of an in-mold heat transfer film of an elastic toy ball comprises the following steps:
(a) preparing a release agent: the release agent comprises waxy materials, EVA resin, dimethylbenzene and ethyl acetate; mixing the waxy material, EVA resin, xylene and ethyl acetate, heating to 30-50 ℃, and stirring for dissolving;
(b) preparation of printing coating: the components of the printing coating comprise resin and solvent; mixing the resin and the solvent, stirring and dissolving at normal temperature or heating to 40-50 ℃, and stirring and dissolving;
(c) preparation of transfer printing ink: the components of the transfer printing ink comprise printing ink vehicle resin, solvent, pigment and dispersant; mixing ink vehicle resin, pigment, solvent and dispersant, dispersing at high speed, and grinding to obtain transfer printing ink;
(d) coating: coating the release agent prepared in the step on the upper surface of the film base layer by using a PVC film as the film base layer to form a release layer, and coating the printing coating prepared in the step on the upper surface of the release layer to form a printing coating;
(e) printing transfer ink: and printing a pattern on the upper surface of the printing coating by adopting conventional gravure printing or flexography to form a transfer printing ink layer.
Further, the release agent in the step (a) comprises 7-10% of waxy material, 0.5-1.0% of EVA resin, 50-70% of xylene and 20-40% of ethyl acetate by weight ratio.
Further, the printing coating in the step (b) comprises 10-15% of resin and 85-90% of solvent.
Furthermore, the components of the transfer ink in the step (c) comprise 50-60% of ink vehicle resin, 20-30% of solvent, 10-20% of pigment and 0.5-1.0% of dispersant by weight ratio.
Further, in the step (a), the waxy material is any one of carnauba wax, montan wax and petroleum wax with the melting point of more than 85 ℃; the EVA resin, namely the ethylene-vinyl acetate copolymer, has 10 to 20 percent of vinyl acetate content and 60 to 90 ℃ of softening point, has good compatibility with waxy materials and improves the adhesive force of the release agent on the PVC film.
Furthermore, the resin in the step (b) is any one of acrylate-styrene copolymer resin, cellulose nitrate and ethyl cellulose, and the printing coating formed by the resin has good ink printability, and is easy to peel off from the wax-type release layer; the solvent selected for the acrylate-styrene copolymer resin is any one of butanone and ethyl acetate; the solvent selected by the cellulose nitrate resin is any one of butanone and ethyl acetate; the solvent selected for the ethyl cellulose resin is a mixed solvent of xylene and isopropanol, wherein the ratio of xylene: isopropanol = 7: 3.
Further, the ink binder resin in the step (c) comprises 20-25% of thermoplastic polyurethane resin, 5-10% of rosin modified resin and 65-75% of cyclohexanone by weight ratio; mixing thermoplastic polyurethane resin, rosin modified resin and cyclohexanone, heating to 60-80 ℃, stirring and dissolving to prepare the ink vehicle resin.
Further, the release agent coating in the step (d) is coated by using an anilox roll coater, wherein the anilox roll screen line: heating a release agent and keeping the temperature at 30-50 ℃ for coating, wherein the drying temperature of a drying tunnel is 40-60 ℃, the time is 3-6 seconds, and the coating amount of the release agent is 3-6 g per square meter; the printing coating is coated by an anilox roller coating machine, and the anilox roller screen line: 150-300 lines, drying temperature of drying tunnel is 40-60 ℃, time is 3-6 seconds, and coating amount of printing coating is 3-6 g per square meter.
Furthermore, the thermoplastic polyurethane resin has a softening point of 90-120 ℃ and a tensile elongation at break of 300-600%; the rosin modified resin is any one of rosin glyceride, hydrogenated rosin glyceride, rosin pentaerythritol ester and hydrogenated rosin pentaerythritol ester, and the softening point is 80-100 ℃.
The invention has the beneficial effects that: the film-in heat transfer film of the elastic toy ball can be applied to the in-mold heat transfer of the toy ball which takes rubber and plastic materials such as EVA, PU, styrene butadiene rubber and the like as raw materials; compared with the existing production method, the production method has the advantages of simple process, low equipment requirement and easy realization in production, and a PE film does not need to be compounded on the PVC film, so that the production cost of the heat transfer film is reduced, the PVC film waste after in-mold transfer printing can be recycled, and a large amount of plastic waste which is difficult to treat is avoided.
Drawings
Fig. 1 is an enlarged schematic view of a sectional structure of an in-mold heat transfer film of the elastic toy ball of the present invention.
Detailed Description
As shown in fig. 1, the present invention relates to a method for producing an in-mold thermal transfer film for an elastic toy ball.
In the embodiment 1, a PVC film with a thickness of 50 μm is selected as a film base layer 1, and a release layer 2, a print coating 3 and a transfer ink layer 4, which are sequentially arranged on the upper surface of the film base layer and mainly comprise a wax material, the print coating 3 and the transfer ink layer.
Preparing a release agent and coating a release layer: the components of the release agent comprise 10 percent of carnauba wax, 0.5 percent of EVA resin, 50 percent of dimethylbenzene and 39.5 percent of ethyl acetate in percentage by weight; mixing carnauba wax, EVA resin and solvent, heating to about 40 ℃, stirring and dissolving, wherein the EVA resin has 18-20% of vinyl acetate content and 77-80 ℃ of softening point; the coating method of the release layer 2 is as follows: coating by using an anilox roller coating machine, wherein the anilox roller is a mesh line: 150 lines, and the release layer 2 is hot-coated, namely the solvent type release agent in the ink fountain is heated and kept at about 30 ℃, coating is carried out, the drying condition of a drying tunnel is that the temperature is about 40 ℃, the time is about 6 seconds, and the coating weight is controlled to be about 6 grams per square meter.
Preparation of printing coating and printing coating: the components of the printing coating comprise 10% of cellulose nitrate and 90% of ethyl acetate in percentage by weight; mixing cellulose nitrate and ethyl acetate, and stirring and dissolving at normal temperature; coating method of the printing coating: coating by using an anilox roller coating machine, wherein 200 lines of anilox roller mesh lines are coated, drying channel drying conditions are adopted, the temperature is 40-60 ℃, the time is 3-6 seconds, and the coating amount of the printing coating is controlled to be about 6 grams per square meter.
Preparation and printing of transfer printing ink: the components of the transfer printing ink comprise 55% of ink vehicle resin, 30% of solvent, 14% of pigment and 1.0% of dispersant by weight ratio; the solvent is ethyl acetate, and the dispersant is silane coupling agent vinyl trimethoxy silane; the ink vehicle resin comprises the following components (by weight): 20% of thermoplastic polyurethane resin, 5% of hydrogenated rosin glyceride and 75% of cyclohexanone; mixing thermoplastic polyurethane resin, hydrogenated rosin glyceride resin and cyclohexanone, heating to 60-80 ℃, stirring and dissolving, wherein the softening point of the selected thermoplastic polyurethane resin is 120 ℃, the elongation at break is 300%, the softening point of the selected hydrogenated rosin glyceride is 85 ℃; after the ink vehicle resin, the pigment and the dispersing agent are mixed, the mixture is dispersed and ground at a high speed to obtain the transfer printing ink, the viscosity of the transfer printing ink is 15 seconds in a coating cup No. 4 cup, the fineness of a scraper is less than 35 microns, and the printing method of the transfer printing ink adopts the conventional gravure printing on the upper surface of a printing coating.
In embodiment 2, a PVC film with a thickness of 100 μm is selected as a film base layer 1, and a release layer 2 mainly composed of a wax material, a print coating 3 mainly composed of a resin material, and a transfer ink layer 4 are sequentially disposed on an upper surface of the film base layer.
Preparing a release agent and coating a release layer: the components of the mold release agent comprise 9 percent of petroleum wax, 1.0 percent of EVA resin, 60 percent of dimethylbenzene and 30 percent of ethyl acetate by weight; mixing petroleum wax, EVA resin and a solvent, heating to about 40 ℃, stirring for dissolving, and uniformly stirring, wherein the melting point of the petroleum wax is 90 ℃, the EVA resin is selected, the vinyl acetate content is 10-12%, and the softening point is 61-63 ℃; the coating method of the release layer comprises the following steps: coating by using an anilox roller coating machine, wherein the anilox roller is a mesh line: 300 lines, hot coating of a release layer, namely heating the solvent type release agent in the ink fountain and keeping the temperature at about 40 ℃, coating, drying at 40 ℃ for about 6 seconds, and controlling the coating amount of the release layer to be about 3 g per square meter.
Preparation of printing coating and printing coating: the components of the printing coating comprise 12 percent of acrylate-styrene copolymer resin and 88 percent of butanone by weight ratio; mixing the acrylate-styrene copolymer resin with a solvent, and stirring and dissolving at normal temperature; coating method of the printing coating: coating by using an anilox roller coating machine, wherein the anilox roller has 150 lines of screen lines, drying channel drying conditions, the temperature of 40-60 ℃, the time of 3-6 seconds and the coating amount of the printing coating is controlled to be about 6 grams per square meter.
Preparation and printing of transfer printing ink: the components of the transfer printing ink comprise 59.5 percent of ink vehicle resin, 30 percent of solvent, 10 percent of pigment and 0.5 percent of dispersant by weight; butanone is selected as a solvent, and vinyl trimethoxy silane which is a silane coupling agent is selected as a dispersing agent; the ink vehicle resin comprises the following components (by weight): 25% of thermoplastic polyurethane resin, 5% of hydrogenated rosin pentaerythritol ester and 70% of cyclohexanone; mixing thermoplastic polyurethane resin, hydrogenated rosin pentaerythritol ester resin and cyclohexanone, heating to 60-80 ℃, stirring and dissolving, wherein the softening point of the selected thermoplastic polyurethane resin is 120 ℃, the elongation at break is 300%, and the softening point of the selected hydrogenated rosin pentaerythritol ester is 95 ℃; after the ink vehicle resin, the pigment and the dispersing agent are mixed, the mixture is dispersed and ground at a high speed to obtain the transfer printing ink, the viscosity of the transfer printing ink is 25 seconds in a coating cup No. 4 cup, the fineness of a scraper is less than 35 micrometers, and the printing method of the transfer printing ink adopts a gravure printing method to print the upper surface of a printing coating.
In embodiment 3, a PVC film with a thickness of 100 μm is selected as the film base layer 1, and the release layer 2 mainly composed of a wax material, the print coating 3 mainly composed of a resin material, and the transfer ink layer 4 are sequentially disposed on the upper surface of the film base layer.
Preparing and coating a release agent: the components of the release agent comprise 7 percent of carnauba wax, 0.5 percent of EVA resin, 69.5 percent of dimethylbenzene and 23 percent of ethyl acetate in percentage by weight; mixing carnauba wax, EVA resin and solvent, heating to about 40 ℃, stirring and dissolving, wherein the EVA resin has the vinyl acetate content of 10-12 percent and the softening point of 61-63 ℃, and the coating method of the release layer comprises the following steps: coating by using an anilox roller coating machine, wherein 300 lines of anilox roller wires are adopted, and a release layer is subjected to thermal coating, namely, a solvent type release agent in an ink fountain is heated and kept at about 40 ℃, coating is carried out, drying channel drying conditions are adopted, the temperature is 40 ℃, the time is about 6 seconds, and the coating amount of the release layer is controlled to be about 3 grams per square meter.
Preparation and coating of a printing coating: the components of the printing coating comprise 10% of ethyl cellulose and 90% of mixed solvent by weight, wherein the solvent is mixed solvent of xylene and isopropanol (xylene: isopropanol = 7: 3); mixing ethyl cellulose resin with a solvent, and stirring for dissolving; the coating method of the printing coating comprises the following steps: coating by using an anilox roller coating machine, wherein the anilox roller has 150 lines of screen lines, and drying channel drying conditions, the temperature is 40-60 ℃, the time is 3-6 seconds, and the coating amount is controlled to be about 6 grams per square meter.
Preparation and printing of transfer printing ink: the components of the transfer printing ink comprise 50% of ink vehicle resin, 29% of solvent, 20% of pigment and 1.0% of dispersant by weight ratio; the solvent is ethyl acetate, and the dispersant is silane coupling agent vinyl trimethoxy silane; the ink vehicle resin comprises the following components (by weight): 25% of thermoplastic polyurethane resin, 10% of rosin pentaerythritol ester and 65% of cyclohexanone; mixing thermoplastic polyurethane resin, rosin pentaerythritol ester and cyclohexanone, heating to 60-80 ℃, stirring and dissolving, wherein the softening point of the selected thermoplastic polyurethane resin is 120 ℃, the elongation at break is 450%, and the softening point of the selected rosin pentaerythritol ester is 95 ℃; after the ink vehicle resin, the pigment and the dispersing agent are mixed, the mixture is dispersed and ground at a high speed to obtain the transfer printing ink, the viscosity of the transfer printing ink is 16 seconds in a coating cup No. 4 cup, the fineness of a scraper is less than 35 microns, and the printing method of the transfer printing ink adopts flexography to print the upper surface of a printing coating.
In embodiment 4, a PVC film with a thickness of 80 μm is selected as the film base layer 1, and the release layer 2 mainly composed of a wax material, the print coating 3 mainly composed of a resin material, and the transfer ink layer 4 are sequentially disposed on the upper surface of the film base layer 1.
Preparing a release agent and coating a release layer: the release agent comprises 8% of montan wax, 1.0% of EVA resin, 70% of xylene and 21% of ethyl acetate in percentage by weight; mixing montan wax, EVA resin and a solvent, heating to 30-50 ℃, stirring and dissolving, selecting the EVA resin with 10-12% of vinyl acetate content and 61-63 ℃ of softening point, and coating a release layer: coating by using an anilox roller coating machine, wherein the anilox roller is a mesh line: 300 lines, hot coating of a release layer, namely heating the solvent type release agent in the ink fountain and keeping the temperature at 40 ℃, coating, drying in a drying tunnel, controlling the temperature at 60 ℃, controlling the time to be about 3 seconds, and controlling the coating amount of the release agent to be about 3 grams per square meter.
Preparation of printing coating and coating of printing coating: the printing coating comprises 10% of cellulose nitrate and 90% of ethyl acetate by weight, the cellulose nitrate and a solvent are mixed and stirred at normal temperature to be dissolved, and the coating method of the printing coating comprises the following steps: coating by using an anilox roller coating machine, wherein the anilox roller has 150 lines of screen lines, drying channel drying conditions, the temperature of 40-60 ℃, the time of 3-6 seconds and the coating amount of the printing coating is controlled to be about 6 grams per square meter.
Preparation and printing of transfer printing ink: the components of the transfer printing ink comprise 60% of ink vehicle resin, 20% of solvent, 19% of pigment and 1.0% of dispersant by weight ratio; the dispersing agent is silane coupling agent N, N-bis- (triethoxysilylpropyl) imine, and the solvent is butanone; the ink vehicle resin comprises the following components (by weight): 25% of thermoplastic polyurethane resin, 10% of rosin glyceride and 65% of cyclohexanone; the preparation method of the ink vehicle resin comprises the steps of mixing thermoplastic polyurethane resin, rosin glyceride and cyclohexanone, heating to about 80 ℃, stirring and dissolving, wherein the softening point of the adopted thermoplastic polyurethane resin is 90 ℃, the elongation at break is 600%, and the softening point of the adopted rosin glyceride is 85 ℃; after the ink vehicle resin, the pigment and the dispersing agent are mixed, the mixture is dispersed and ground at a high speed to obtain the transfer printing ink, the viscosity of the transfer printing ink is 20 seconds in a coating cup No. 4, the fineness of a scraper is less than 35 microns, and the printing method of the transfer printing ink adopts a gravure printing method to print the upper surface of a printing coating.
The in-mold heat transfer film for the elastic toy ball realizes decoration printing on the surface of a ball body which takes foaming EVA materials, PU materials, styrene butadiene rubber and other materials as raw materials through in-mold transfer printing, a PVC film carrier is cleanly stripped, the pattern is clear, the pattern and the ball body have excellent adhesiveness, and meanwhile, a waste PVC film can be recycled.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.
Claims (8)
1. The utility model provides an elasticity toy ball's mould internal heat rendition membrane which characterized in that: the structure of the transfer printing ink film comprises a PVC film as a film base layer (1), a release layer (2) which is arranged on the upper surface of the film base layer in sequence and takes a waxy material as a main component, a printing coating (3) which takes a resin material as a main component, and a transfer printing ink layer (4); the release agent used by the release layer (2) comprises, by weight, 7% -10% of a waxy material, 0.5% -1.0% of EVA resin, 50% -70% of xylene and 20% -40% of ethyl acetate; the components of the transfer printing ink used by the transfer printing ink layer (4) by weight ratio comprise 50-60% of printing ink binder resin, 20-30% of solvent, 10-20% of pigment and 0.5-1.0% of dispersant; the resin is any one of acrylate-styrene copolymer resin, cellulose nitrate and ethyl cellulose; the ink vehicle resin component comprises 20-25% of thermoplastic polyurethane resin, 5-10% of rosin modified resin and 65-75% of cyclohexanone by weight ratio; the heat transfer film is used for in-mold heat transfer decoration of elastic toy balls which take EVA, PU and styrene butadiene rubber as raw materials.
2. A production method of an in-mold heat transfer film of an elastic toy ball is characterized in that: the method comprises the following steps:
(a) preparing a release agent: the release agent comprises waxy materials, EVA resin, dimethylbenzene and ethyl acetate; mixing a waxy material, EVA resin, xylene and ethyl acetate, heating to 30-50 ℃, stirring and dissolving, wherein the components of the release agent comprise, by weight, 7-10% of the waxy material, 0.5-1.0% of the EVA resin, 50-70% of the xylene and 20-40% of ethyl acetate;
(b) preparation of printing coating: the printing coating comprises 10-15% of resin and 85-90% of solvent by weight, wherein the resin is any one of acrylate-styrene copolymer resin, cellulose nitrate and ethyl cellulose; mixing the resin and the solvent, stirring and dissolving at normal temperature or heating to 40-50 ℃, and stirring and dissolving;
(c) preparation of transfer printing ink: the components of the transfer printing ink comprise printing ink vehicle resin, solvent, pigment and dispersant; mixing ink vehicle resin, pigment, solvent and dispersant, dispersing at high speed, and grinding to obtain transfer printing ink;
(d) coating: coating the release agent prepared in the step (a) on the upper surface of the film base layer (1) by taking a PVC film as the film base layer (1) to form a release layer (2), and coating the printing coating prepared in the step (b) on the upper surface of the release layer (2) to form a printing coating (3);
(e) printing transfer ink: and printing a pattern on the upper surface of the printing coating (3) by adopting conventional gravure printing or flexography to form a transfer printing ink layer (4).
3. The production method according to claim 2, characterized in that: the components of the transfer printing ink in the step (c) comprise 50-60% of printing ink binder resin, 20-30% of solvent, 10-20% of pigment and 0.5-1.0% of dispersant by weight ratio.
4. The production method according to claim 2, characterized in that: the waxy material is any one of carnauba wax, montan wax and petroleum wax with the melting point of more than 85 ℃; the EVA resin, namely the ethylene-vinyl acetate copolymer, has the vinyl acetate content of 10-20 percent and the softening point of 60-90 ℃.
5. The production method according to claim 2, characterized in that: the acrylate-styrene copolymer resin adopts any one of butanone and ethyl acetate as a solvent, and the cellulose nitrate resin adopts any one of butanone and ethyl acetate as a solvent; the solvent selected for the ethyl cellulose resin is a mixed solvent of xylene and isopropanol, wherein the ratio of xylene: isopropanol = 7: 3.
6. The production method according to claim 2 or 3, characterized in that: the ink vehicle resin component comprises 20-25% of thermoplastic polyurethane resin, 5-10% of rosin modified resin and 65-75% of cyclohexanone by weight ratio; mixing thermoplastic polyurethane resin, rosin modified resin and cyclohexanone, heating to 60-80 ℃, stirring and dissolving to prepare the ink vehicle resin.
7. The production method according to claim 2, characterized in that: in the step (d), coating the release agent by using an anilox roll coater, wherein the anilox roll is characterized in that: 150-300 lines, and performing thermal coating on a release layer, namely heating the release agent and keeping the temperature at 30-50 ℃ for coating, wherein the coating amount of the release agent is 3-6 g per square meter; the printing coating is coated by an anilox roller coating machine, and the anilox roller screen line: 150-300 lines, and the coating weight of the printing coating is 3-6 g per square meter.
8. The production method according to claim 6, characterized in that: the rosin modified resin is any one of rosin glyceride, hydrogenated rosin glyceride, rosin pentaerythritol ester and hydrogenated rosin pentaerythritol ester.
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| CN112009127A (en) * | 2020-07-23 | 2020-12-01 | 泉州市福采转印科技有限公司 | Transfer printing film for EVA slipper transfer printing and transfer printing method |
| CN112622382B (en) * | 2020-12-25 | 2023-04-07 | 保定乐凯新材料股份有限公司 | Multilayer film, manufacturing method and application thereof |
| CN116120836A (en) * | 2022-12-30 | 2023-05-16 | 安徽集友新材料股份有限公司 | Release agent, preparation method and application thereof and electrochemical aluminum |
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| CN2818150Y (en) * | 2005-02-05 | 2006-09-20 | 汕头市东田转印有限公司 | Transprinting membrane |
| CN101412342A (en) * | 2007-10-17 | 2009-04-22 | 仁宝电脑工业股份有限公司 | Film for color pattern metal casing body |
| CN101642990A (en) * | 2008-08-05 | 2010-02-10 | 焦作市卓立烫印材料有限公司 | Heat transfer film for soft infusion bag and preparation method thereof |
| CN106313923A (en) * | 2015-07-03 | 2017-01-11 | 禹辉（上海）转印材料股份有限公司 | Method for producing high abrasion-resistant solvent-resistant heat transfer film |
| CN109649031B (en) * | 2018-11-19 | 2021-02-05 | 江苏学泰印务有限公司 | Multilayer stacked edge transfer printing film without overprinting |
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