CN116021906A - Wood grain transfer film, preparation method and printing stock - Google Patents

Wood grain transfer film, preparation method and printing stock Download PDF

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Publication number
CN116021906A
CN116021906A CN202310185461.XA CN202310185461A CN116021906A CN 116021906 A CN116021906 A CN 116021906A CN 202310185461 A CN202310185461 A CN 202310185461A CN 116021906 A CN116021906 A CN 116021906A
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China
Prior art keywords
parts
wood grain
printing
layer
transfer film
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Pending
Application number
CN202310185461.XA
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Chinese (zh)
Inventor
麦惠贤
霍虾
霍浩麟
霍丽仙
关旭光
范海坚
吴顺卫
叶健能
庞健棉
林晓冬
潘肖娥
梁德智
庞深杨
叶庆祥
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Foshan Changsheng Xinglong Decoration Material Co ltd
Original Assignee
Foshan Changsheng Xinglong Decoration Material Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN202310185461.XA priority Critical patent/CN116021906A/en
Publication of CN116021906A publication Critical patent/CN116021906A/en
Pending legal-status Critical Current

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Abstract

The application relates to the field of thermal transfer printing, and discloses a wood grain transfer printing film, a preparation method and a printing stock, wherein the wood grain transfer printing film sequentially comprises a substrate layer, a release layer and a UV pattern layer from bottom to top; the UV pattern layer is printed by UV paint. The utility model provides a wood grain transfer film, UV pattern layer adopt UV coating to form through gravure press printing, through adopting UV coating, need not to add the filler also can make the wood grain pattern have protruding wood grain feel, can also improve the wearability on UV pattern layer, when the foreign object friction, reduces the probability of wearing and tearing appearing.

Description

Wood grain transfer film, preparation method and printing stock
Technical Field
The application relates to the field of thermal transfer printing, and mainly relates to a wood grain transfer printing film, a preparation method and a printing stock.
Background
The existing wood grain thermal transfer film is widely used for aluminum alloy profiles such as burglarproof doors and windows, and the main process flow is that the aluminum profile is welded and molded firstly, powder is sprayed on the surface of the aluminum profile, and finally the wood grain thermal transfer film is used for transferring wood grain patterns on the surface of the aluminum profile. The existing wood grain transfer printing patterns can simulate the three-dimensional effect of wood grains, and can also have 3D visual effect and protruding wood grain hand feeling. The applicant has developed a wood grain thermal transfer film prepared by using thermal sublimation transfer ink and filler, so that the wood grain pattern has 3D visual effect and protruding wood grain hand feeling, and as the surface of the wood grain thermal transfer film is generally free of a protective layer, the protruding part of the wood grain pattern transferred on the surface of an aluminum profile is easily worn after being rubbed and collided by foreign objects during long-term use, and the appearance of a product is influenced.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present application is to provide a wood grain transfer film, a method for manufacturing the same, and a printing stock, which are intended to solve the problem that the protruding portions of the existing wood grain pattern are easily worn.
The technical scheme of the application is as follows:
the wood grain transfer film comprises a substrate layer, a release layer and a UV pattern layer from bottom to top in sequence; the UV pattern layer is printed by UV paint.
The wood grain transfer film comprises the following raw materials in parts by weight:
30-40 parts of hyperbranched tetrafunctional polyester acrylate;
30-40 parts of fluorine modified polyurethane acrylic ester;
10-25 parts of epoxy resin;
1-3 parts of nano silicon dioxide;
2-3 parts of an initiator;
45-55 parts of a solvent;
and 0-20 parts of pigment.
The wood grain transfer film is characterized in that the substrate layer is a PVC film or a PET film.
The wood grain transfer film, wherein the solvent is a combination of ethyl acetate and butyl acetate.
The wood grain transfer film comprises ethyl acetate and butyl acetate, wherein the mass ratio of the ethyl acetate to the butyl acetate is 1:1.
A method of producing a wood grain transfer film as described above, comprising the steps of:
mixing 30-40 parts of hyperbranched tetrafunctional polyester acrylate, 30-40 parts of fluorine modified polyurethane acrylate, 10-25 parts of epoxy resin, 1-3 parts of nano silicon dioxide, 2-3 parts of initiator, 45-55 parts of solvent and 0-20 parts of pigment under a light-shielding condition to obtain a UV coating;
brushing a release agent on the substrate layer, and drying at 110-130 ℃ to form a release layer;
printing the UV paint on one surface of the substrate layer coated with the release layer to form the UV pattern layer;
and (5) winding the finished product to finish printing.
The preparation method of the wood grain transfer film, wherein the UV coating is printed on one surface of the substrate layer coated with the release layer, and the process of forming the UV pattern layer specifically comprises the following steps:
selecting a cylindrical gravure roll engraved with wood grain patterns according to the wood grain plate; setting cylindrical gravure rollers on a gravure printing machine according to color sequences, and respectively pouring the UV paint with corresponding colors; adjusting the viscosity of the UV coating to be between 15 seconds and 30 seconds in a No. 3 cup, the temperature of a bellows of the intaglio printing press to be between 130 and 140 ℃ and the production speed of the intaglio printing press to be between 50 meters/min and 200 meters/min; and (3) starting the color printing, printing the UV paint on one surface of the substrate layer coated with the release layer, and drying to form the UV pattern layer.
And carrying out heat transfer printing treatment on the printing stock by adopting the wood grain transfer printing film, wherein the UV pattern layer is attached to the printing stock.
The printing stock is an aluminum alloy section, a stainless steel section or a steel plate.
The beneficial effects are that: the utility model provides a wood grain transfer film, UV pattern layer adopt UV coating to form through gravure press printing, through adopting UV coating, need not to add the filler also can make the wood grain pattern have protruding wood grain feel, can also improve the wearability on UV pattern layer, when the foreign object friction, reduces the probability of wearing and tearing appearing.
Detailed Description
The application provides a wood grain transfer film, a preparation method and a printing stock, and aims to make the purposes, the technical scheme and the effects of the application clearer and more definite, and the application is further described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The application provides a wood grain transfer film which sequentially comprises a substrate layer, a release layer and a UV pattern layer from bottom to top; the UV pattern layer is printed by UV paint.
The substrate layer may be a PVC film or a PET film. The UV pattern layer is formed by printing through a gravure printing machine by adopting the UV coating, the wood grain patterns can have convex wood grain hand feeling without adding fillers, the wear resistance of the UV pattern layer can be improved, and the probability of abrasion is reduced when foreign objects rub and collide.
Further, a release layer is disposed between the UV pattern layer and the substrate layer. By arranging the release layer between the UV pattern layer and the substrate layer, the UV pattern layer and the substrate layer can be better separated during transfer printing treatment. The release agent used to form the release layer is commercially available and will not be described in detail herein.
The UV coating used for the UV pattern layer can be a commercially available product. Because the existing wood grain transfer film is mainly used on aluminum alloy sections such as burglarproof doors and windows, and some aluminum alloy sections are placed in an outdoor environment for use, but the problem of yellowing of common UV paint on the market after long-term sun-drying and rain-spraying can occur, and the aesthetic property of a UV pattern layer is influenced. Therefore, the applicant obtains the yellowing-resistant and abrasion-resistant UV coating through a plurality of research and development experiments, and specifically, the UV coating comprises the following raw materials in parts by weight:
30-40 parts of hyperbranched tetrafunctional polyester acrylate;
30-40 parts of fluorine modified polyurethane acrylic ester;
10-25 parts of epoxy resin;
1-3 parts of nano silicon dioxide;
2-3 parts of an initiator;
45-55 parts of a solvent;
and 0-20 parts of pigment.
The hyperbranched tetrafunctional polyester acrylate is resin with higher terminal group density and larger free volume, and can well improve the wear resistance of the UV pattern layer through interaction with fluorine modified polyurethane acrylate and nano silicon dioxide, and meanwhile, the UV pattern layer has good flexibility, so that the resin can be suitable for rolling and transporting of a thermal transfer film in the production process. In addition, through adding epoxy resin, the yellowing resistance of the UV pattern layer can be well improved, so that the aesthetic property of the pattern ink layer can be better maintained. By adding pigment, UV coating with different colors can be prepared to meet the color requirement of the UV pattern layer. The UV pattern layer of this application adopts the UV coating to form through intaglio printing machine printing, divides into multilayer printing according to the shape of three-dimensional wood grain pattern with the UV pattern layer according to the colour preface, sets up drum gravure roll according to the colour preface on intaglio printing machine, prints one deck according to the colour preface in proper order, dries, reprints next layer. The protruding wood grain part is provided with more layers, so that the protruding wood grain part has protruding wood grain hand feeling, thus, the wood grain pattern with protruding wood grain hand feeling can be obtained without additional filling filler, and the wear resistance of the wood grain pattern transferred on the surface of the aluminum profile is better because no filler is used, the aluminum profile is not easy to be worn even through foreign object friction and collision, and the aluminum profile can keep good appearance for a long time.
The raw materials adopted in the method are all commercially available products, hyperbranched tetrafunctional polyester acrylate, fluorine modified polyurethane acrylate, epoxy resin and initiator are purchased from the long-standing materials, and nano silicon dioxide is purchased from the super wear-resistant materials. The solvent can be a combination of ethyl acetate and butyl acetate, and the mass ratio of the ethyl acetate to the butyl acetate is 1:1.
The application also provides a preparation method of the wood grain transfer film, which comprises the following steps:
preparing a UV coating: mixing 30-40 parts of hyperbranched tetrafunctional polyester acrylate, 30-40 parts of fluorine modified polyurethane acrylate, 10-25 parts of epoxy resin, 1-3 parts of nano silicon dioxide, 2-3 parts of initiator, 45-55 parts of solvent and 0-20 parts of pigment under a light-shielding condition to obtain a UV coating;
coating a release layer: brushing a release agent on the substrate layer, and drying at 110-130 ℃ to form a release layer;
printing a UV pattern layer: selecting a cylindrical gravure roll engraved with wood grain patterns according to the wood grain plate; setting cylindrical gravure rollers on a gravure printing machine according to color sequence, and respectively pouring UV paint with corresponding colors; adjusting the viscosity of the UV coating to be between 15 seconds and 30 seconds (cup 3), the temperature of a bellows of the intaglio printing press to be between 130 and 140 ℃ and the production speed of the intaglio printing press to be between 50 and 200 meters per minute; printing UV paint on one surface of the substrate layer coated with the release layer, and drying to form a UV pattern layer;
and (5) winding the finished product to finish printing.
The wood grain transfer film is in a solid state but not subjected to UV curing after being prepared, and can be rolled, stored, transported and the like. When transfer printing is carried out, the operation method comprises the following steps: brushing a layer of colorless or UV paint with the same color as the base color of the UV pattern layer on the surface of the metal printing material to moisten the surface of the metal printing material, sticking a wood grain transfer film on the metal printing material, and applying a light energy of 600-900mJ/cm 2 And (3) performing UV light curing to form a cured UV pattern layer, and stripping the substrate layer to complete the transfer printing process.
In the scheme in the application, a printing object is also provided, and a UV pattern layer is attached to the printing object; the printing stock is a metal printing stock. The metal printing stock can be an aluminum alloy section, a stainless steel section, a steel plate and the like.
The present application is further illustrated by the following specific examples.
Example 1
Preparing a UV coating: mixing 35 parts of hyperbranched tetrafunctional polyester acrylate, 35 parts of fluorine modified polyurethane acrylate, 18 parts of epoxy resin, 2 parts of nano silicon dioxide, 2.5 parts of initiator, 50 parts of solvent (ethyl acetate: butyl acetate=1:1) and 10 parts of pigment under a light-shielding condition to obtain a UV coating;
coating a release layer: brushing a release agent on the PVC film, and drying at 120 ℃ to form a release layer;
printing a UV pattern layer: selecting a cylindrical gravure roll engraved with wood grain patterns according to the wood grain plate; setting cylindrical gravure rollers on a gravure printing machine according to color sequence, and respectively pouring UV paint with corresponding colors; adjusting the viscosity of the water-based ink to be between 20 seconds (No. 3 cup), the temperature of a bellows of the intaglio printing press to be between 135 ℃ and the production speed of the intaglio printing press to be between 180 meters/minute; printing a UV pattern layer on one surface of the PVC film coated with the release layer, and drying;
and (5) winding the finished product to finish printing.
Brushing a layer of UV paint with the same color as the primer of the UV pattern layer on the surface of the metal printing stock to moisten the surface of the metal printing stock, sticking the wood grain transfer film on the metal printing stock, smoothing and sticking, and applying the wood grain transfer film on the metal printing stock with the light energy of 800mJ/cm 2 And (3) performing UV light curing to form a cured UV pattern layer, and stripping the substrate layer to complete the thermal transfer printing process.
The wood grain pattern on the surface of the aluminum alloy is subjected to performance test, the pencil hardness is 2H, the steel wool is wiped back and forth for 500 times under the force of 500g without damage, and the yellowing value after being irradiated for 200 hours under the UV of 1W/m is 2.4.
Example 2
Preparing a UV coating: 31 parts of hyperbranched tetrafunctional polyester acrylate, 31 parts of fluorine modified polyurethane acrylate, 12 parts of epoxy resin, 1.2 parts of nano silicon dioxide, 2.2 parts of initiator, 45 parts of solvent (ethyl acetate: butyl acetate=1:1) and 5 parts of pigment are mixed under a light-shielding condition to obtain a UV coating;
coating a release layer: brushing a release agent on the PVC film, and drying at 120 ℃ to form a release layer;
printing a UV pattern layer: selecting a cylindrical gravure roll engraved with wood grain patterns according to the wood grain plate; setting cylindrical gravure rollers on a gravure printing machine according to color sequence, and respectively pouring UV paint with corresponding colors; adjusting the viscosity of the water-based ink to be between 20 seconds (No. 3 cup), the temperature of a bellows of the intaglio printing press to be between 135 ℃ and the production speed of the intaglio printing press to be between 180 meters/minute; printing a UV pattern layer on one surface of the PVC film coated with the release layer, and drying;
and (5) winding the finished product to finish printing.
Brushing a layer of UV paint with the same color as the primer of the UV pattern layer on the surface of the metal printing stock to moisten the surface of the metal printing stock, sticking the wood grain transfer film on the metal printing stock, smoothing and sticking, and applying the wood grain transfer film on the metal printing stock with the light energy of 800mJ/cm 2 And (3) performing UV light curing to form a cured UV pattern layer, and stripping the substrate layer to complete the thermal transfer printing process.
The wood grain pattern on the surface of the aluminum alloy is subjected to performance test, the pencil hardness is 2H, the steel wool is wiped back and forth for 500 times under the force of 500g without damage, and the yellowing value after being irradiated for 200 hours under the UV of 1W/m is 2.8.
Example 3
Preparing a UV coating: mixing 40 parts of hyperbranched tetrafunctional polyester acrylate, 38 parts of fluorine modified polyurethane acrylate, 25 parts of epoxy resin, 3 parts of nano silicon dioxide, 3 parts of initiator, 55 parts of solvent (ethyl acetate: butyl acetate=1:1) and 15 parts of pigment under a light-shielding condition to obtain a UV coating;
coating a release layer: brushing a release agent on the PVC film, and drying at 120 ℃ to form a release layer;
printing a UV pattern layer: selecting a cylindrical gravure roll engraved with wood grain patterns according to the wood grain plate; setting cylindrical gravure rollers on a gravure printing machine according to color sequence, and respectively pouring UV paint with corresponding colors; adjusting the viscosity of the water-based ink to be between 20 seconds (No. 3 cup), the temperature of a bellows of the intaglio printing press to be between 135 ℃ and the production speed of the intaglio printing press to be between 180 meters/minute; printing a UV pattern layer on one surface of the PVC film coated with the release layer, and drying;
and (5) winding the finished product to finish printing.
Brushing a layer of UV paint with the same color as the primer of the UV pattern layer on the surface of the metal printing stock to moisten the surface of the metal printing stock, sticking the wood grain transfer film on the metal printing stock, smoothing and sticking, and applying the wood grain transfer film on the metal printing stock with the light energy of 800mJ/cm 2 And (3) performing UV light curing to form a cured UV pattern layer, and stripping the substrate layer to complete the thermal transfer printing process.
The wood grain pattern on the surface of the aluminum alloy is subjected to performance test, the pencil hardness is 2H, the steel wool is wiped back and forth for 500 times under the force of 500g without damage, and the yellowing value after being irradiated for 200 hours under the UV of 1W/m is 2.2.
It will be understood that the application of the present application is not limited to the examples described above, but that modifications and variations can be made by those skilled in the art in light of the above description, all of which are intended to be within the scope of the present application.

Claims (9)

1. The wood grain transfer film is characterized by sequentially comprising a substrate layer, a release layer and a UV pattern layer from bottom to top; the UV pattern layer is printed by UV paint.
2. The wood grain transfer film of claim 1, wherein the UV coating comprises the following raw materials in parts by weight:
30-40 parts of hyperbranched tetrafunctional polyester acrylate;
30-40 parts of fluorine modified polyurethane acrylic ester;
10-25 parts of epoxy resin;
1-3 parts of nano silicon dioxide;
2-3 parts of an initiator;
45-55 parts of a solvent;
and 0-20 parts of pigment.
3. The wood grain transfer film according to claim 1, wherein the base material layer is a PVC film or a PET film.
4. The wood grain transfer film of claim 1, wherein the solvent is a combination of ethyl acetate and butyl acetate.
5. The wood grain transfer film of claim 4, wherein the mass ratio of ethyl acetate to butyl acetate is 1:1.
6. A method for producing the wood grain transfer film according to any one of claims 1 to 5, comprising the steps of:
mixing 30-40 parts of hyperbranched tetrafunctional polyester acrylate, 30-40 parts of fluorine modified polyurethane acrylate, 10-25 parts of epoxy resin, 1-3 parts of nano silicon dioxide, 2-3 parts of initiator, 45-55 parts of solvent and 0-20 parts of pigment under a light-shielding condition to obtain a UV coating;
brushing a release agent on the substrate layer, and drying at 110-130 ℃ to form a release layer;
printing the UV paint on one surface of the substrate layer coated with the release layer to form the UV pattern layer;
and (5) winding the finished product to finish printing.
7. The method for preparing a wood grain transfer film according to claim 6, wherein the step of printing the UV coating on the side of the substrate layer coated with the release layer to form the UV pattern layer comprises the steps of:
selecting a cylindrical gravure roll engraved with wood grain patterns according to the wood grain plate; setting cylindrical gravure rollers on a gravure printing machine according to color sequences, and respectively pouring the UV paint with corresponding colors; adjusting the viscosity of the UV coating to be between 15 seconds and 30 seconds in a No. 3 cup, the temperature of a bellows of the intaglio printing press to be between 130 and 140 ℃ and the production speed of the intaglio printing press to be between 50 meters/min and 200 meters/min; and (3) starting the color printing, printing the UV paint on one surface of the substrate layer coated with the release layer, and drying to form the UV pattern layer.
8. A printing material, characterized in that the wood grain transfer film according to any one of claims 1 to 5 is used for performing thermal transfer printing treatment on the printing material, and the UV pattern layer is attached to the printing material.
9. The substrate of claim 8, wherein the substrate is an aluminum alloy profile, a stainless steel profile, or a steel plate.
CN202310185461.XA 2023-03-01 2023-03-01 Wood grain transfer film, preparation method and printing stock Pending CN116021906A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100844385B1 (en) * 2007-02-07 2008-07-08 애경피앤티(주) Thermal transfer printing type composite film and preparing method thereof
CN101941339A (en) * 2009-07-06 2011-01-12 珠海东诚光固化材料有限公司 Ultraviolet light cured transfer printing film and preparation method and application thereof
CN103419538A (en) * 2013-07-23 2013-12-04 霍浩麟 Production process for transferring and printing PET (Polyester) transfer film onto metal plate
CN103666053A (en) * 2013-11-25 2014-03-26 铜陵方正塑业科技有限公司 UV curing transfer printing ink 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
CN107839316A (en) * 2016-11-11 2018-03-27 佛山市长盛兴隆装饰材料有限公司 A kind of transfer printing wood grain film/paper and preparation method thereof, printing transferring method and wood grain stock
CN108215557A (en) * 2018-02-01 2018-06-29 东莞市博扬包装材料有限公司 Heat transfer film and its moulding process with concave-convex sense

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100844385B1 (en) * 2007-02-07 2008-07-08 애경피앤티(주) Thermal transfer printing type composite film and preparing method thereof
CN101941339A (en) * 2009-07-06 2011-01-12 珠海东诚光固化材料有限公司 Ultraviolet light cured transfer printing film and preparation method and application thereof
CN103419538A (en) * 2013-07-23 2013-12-04 霍浩麟 Production process for transferring and printing PET (Polyester) transfer film onto metal plate
CN103666053A (en) * 2013-11-25 2014-03-26 铜陵方正塑业科技有限公司 UV curing transfer printing ink 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
CN107839316A (en) * 2016-11-11 2018-03-27 佛山市长盛兴隆装饰材料有限公司 A kind of transfer printing wood grain film/paper and preparation method thereof, printing transferring method and wood grain stock
CN108215557A (en) * 2018-02-01 2018-06-29 东莞市博扬包装材料有限公司 Heat transfer film and its moulding process with concave-convex sense

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