A pe-coated paper-based laminating film

Abstract

This invention relates to the field of digital heat transfer technology and discloses a PE coated paper-based hot stamping film, comprising a substrate layer (1) and a surface color-fixing ink carrier layer (2). The substrate layer (1) comprises a PE coated paper base, and the surface color-fixing ink carrier layer (2) is coated on the substrate layer (1). The surface color-fixing ink carrier layer (2) directly fixes pigment or dye molecules in the paint ink to form a printing pattern, thereby realizing the heat transfer of a simple printing pattern. This solves the problem that the existing technology uses PET film as the substrate and that the PET hot stamping film forms the pattern by fixing the color through an ink absorption layer. At the same time, it has the characteristics of fewer coating layers, better overall coating performance, simple production process, lower cost, and purer colors of the transferred pattern.

Description

Technical Field

[0001] This invention relates to the field of heat transfer technology, and in particular to a PE coated paper-based hot stamping film and its preparation method. Background Technology

[0002] Heat transfer film is a new way to print designs on various materials, especially suitable for personalized and customized products, as well as for printing designs containing full-color images or photographs. The principle is to first print the design onto a heat transfer film substrate, then sprinkle hot melt powder on top, remove excess powder, and finally heat-melt and cure the powder. The design is then transferred to the surface of fabric or other products by hot pressing at 150℃. It boasts advantages such as vibrant colors, rich detail, low production cost, and simple and convenient processing. It can be used on textiles, leather, acrylic, metal, plastics, crystal, and wood products. As DIY enjoyment becomes increasingly popular among ordinary families, the product has a broad market prospect.

[0003] Heat transfer printing technology can be applied to materials such as leather, textiles, plexiglass, metal, plastic, crystal, wood products, and coated paper. It eliminates the need for plate making, color matching, and complex exposure processes. Heat transfer printing offers advantages such as vibrant colors, rich detail, low production costs, and resistance to fading, making it a promising technology with broad market application prospects.

[0004] In existing heat transfer film technology, patent application number CN202010315595.5 discloses a heat transfer film and its manufacturing process. The heat transfer film includes a non-stick layer, a base layer, a release layer, a polyurethane layer, an ink layer, and an adhesive layer connected in sequence. The resulting heat transfer film has a novel six-layer structure, which is very complex and cumbersome to manufacture. Patent ZL200380107048.2 (authorization announcement number CN100431848C) discloses an inkjet receiving layer, comprising: a base containing an ink receiving layer, the ink receiving layer containing a raw material polymer selected from: 1) urethane acrylic copolymers, 2) a blend of at least one polyurethane polymer with a Mw greater than 400,000 g / mol and at least one acrylic polymer, 3) a blend of at least two polyurethane polymers, and mixtures thereof, wherein the ink receiving layer does not contain fillers; and a non-aqueous inkjet image located on the ink receiving layer. This type of patent structure has 4-6 layers, and the pattern is displayed by fixing the color through the ink-absorbing layer.

[0005] Patent application number 202010470186.2 discloses an environmentally friendly heat transfer ink, a PET film heat transfer method, and its application. Preferably, a coating composition is coated onto the PET film. This coating composition, based on a total weight of 100 parts, comprises the following components in the following weight ratio: 10-30 parts of polyvinyl butyral, 5-10 parts of waterborne polyurethane, 5-10 parts of polyvinyl alcohol, and 0.5-1 part of a coupling agent, with the balance being water. The patent specifically emphasizes the ink-absorbing effect of polyvinyl butyral, indicating that the coating composition achieves its effect through the structural characteristics of the ink-absorbing layer.

[0006] Both of these methods involve passing ink through the ink-absorbing layer of a PET heat transfer film in an inkjet printer, and then using this PET heat transfer film to transfer the ink-absorbing layer entirely onto the fabric, whether it's pure cotton or a cotton blend. During heat transfer, the ink-absorbing layer containing pigments or dyes, along with the release layer, is peeled off, affecting the original color of the ink, the precision of the pattern, its folding resistance, and its variability.

[0007] To address the aforementioned issues, certain improvements have been made to the existing technology.

[0008] Patent application number 202220900136.8 discloses a paper-based digital inkjet printing film, comprising a substrate film, a primer release layer, an ink-absorbing layer, a printing pattern layer, and a hot melt adhesive layer. The substrate is paper, and the surface is provided with a treatment layer, a release layer, and an ink-absorbing layer. The ink-absorbing layer prints the pattern, and the hot melt adhesive layer solves the problem of PET degradation in existing heat transfer films. However, this technology suffers from complex coating structure and complex coating process.

[0009] Patent application number 202110384877.5 discloses a coating composition for heat transfer paper, heat transfer paper, and its preparation method. The coating composition for heat transfer paper, by weight, includes 30-40 parts of cation exchange resin, 0.5-1 parts of fixative, 10-30 parts of butadiene and styrene copolymer emulsion, 5-10 parts of waterborne polyurethane, 1-5 parts of calcium stearate emulsion, 10-30 parts of silica, and the penetration of polysiloxane ink, improving the transfer rate and image resolution of the heat transfer paper. However, it directly coats the surface of the base paper to form an ink-absorbing coating without a release layer, resulting in difficulty in peeling it off during use; the printing ink also suffers from severe penetration problems. Summary of the Invention

[0010] This invention addresses the shortcomings of existing technologies, such as low drying temperature and slow printing speed of PET film, by providing a PE coated paper-based hot-stamping film and its manufacturing method. The drying temperature reaches 170℃, the printing speed is increased, and the production efficiency is more than doubled.

[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0012] A PE coated paper-based hot stamping film includes a substrate layer and a surface color-fixing ink-carrying layer. The substrate layer includes a PE coated paper base. The surface color-fixing ink-carrying layer is coated on the substrate layer. The surface color-fixing ink-carrying layer directly fixes pigment or dye molecules in the coating ink to form a printed pattern.

[0013] Preferably, the surface of the hot-pressed film is formed with a concave-convex structure by hot pressing. The concave-convex structure includes a plurality of equally spaced concave portions, each of which is an inwardly concave hemispherical shape.

[0014] Preferably, the surface-fixing ink carrier layer includes sodium carboxymethyl cellulose, polyurethane emulsion, methacrylate-acrylate-ethylene copolymer emulsion, cationic polyacrylamide, organic dimethyl silicone resin, fatty acid salt emulsion, wax emulsion, and inorganic salt solution.

[0015] Preferably, the surface-fixing ink-carrying layer comprises, by weight, 2-10 parts sodium carboxymethyl cellulose, 7-15 parts polyurethane emulsion, 2-5 parts methacrylate-acrylate-ethylene copolymer emulsion, 5-7 parts cationic polyacrylamide, 10-17 parts organic dimethyl silicone resin, 3-8 parts fatty acid salt emulsion, 20-27 parts wax emulsion, and 10-17 parts inorganic salt solution.

[0016] Preferably, the methacrylate-acrylate-ethylene copolymer emulsion has an ethylene content of 20-40% and a solid content of 30-46%, and the polyurethane emulsion is a polyester-type polyurethane with a solid content of 30-46%.

[0017] Preferably, the fatty acid salt emulsion has a solid content of 40-50% and the fatty acid has 12-22 carbon atoms, with carbon 16-18 being the most preferred; the wax emulsion has a solid content of 40-50% and the fatty acid has 14-20 carbon atoms, with carbon 16-18 being the most preferred.

[0018] Preferably, the inorganic salt solution is one or a combination of two of BaCl2, ZnCl2, CaCl2, MgCl2, and AlCl3, with a liquid concentration of 10%-20%; the ratio of the two is 100:32 to 100:13.

[0019] Preferably, the method for preparing the surface color-fixing ink-carrying layer includes the following steps:

[0020] (1) Sodium carboxymethyl cellulose, polyurethane emulsion, and methacrylate-acrylate-ethylene copolymer emulsion are added to a high-speed dispersion tank and dispersed at a speed of 300-500 r / min for 5-10 min to form a dispersion with dispersing effect; then cationic polyacrylamide is added and dispersed at a speed of 1500-2000 r / min for 30-40 min to obtain a dispersion of the composition.

[0021] (2) Add the inorganic salt solution while stirring at a speed of 300-500 r / min, and stir for 5-10 min at this speed to obtain a mixed dispersion;

[0022] (3) Continue to add organic dimethyl silicone resin while stirring at a speed of 300-500 r / min. After the addition is complete, continue to add fatty acid salt emulsion and wax emulsion at the same speed, stir for 5-10 min, and then measure the solid content and viscosity for later use.

[0023] A method for preparing a PE coated paper-based hot-stamping film includes the following steps: coating one side of a substrate layer with a surface-fixing ink carrier material, and drying it to form a surface-fixing ink carrier layer.

[0024] This invention, by adopting the above technical solutions, has significant technical effects:

[0025] This invention enables thermal transfer printing on PE coated paper substrates, forming a surface-fixed ink-carrying layer on the PE coated surface. Compared with PET films prepared with PET as the substrate in the prior art, it is more cost-effective and has better water resistance and printability.

[0026] Furthermore, the surface-fixing ink-carrying layer selected in this invention has excellent ink absorption and adsorption properties. It quickly combines with the fixative in the composition to form a complex, effectively locking in the ink and preventing ink penetration. At the same time, the silicone resin cross-links with the fixative and water-based polyurethane, enhancing the strength of the network structure of the ink-absorbing coating, further preventing ink penetration, thereby improving the transfer rate and image resolution of the heat transfer paper.

[0027] The method for preparing a color-fixed ink-carrying heat transfer film provided by this invention is simple and convenient. Compared with the complex process of traditional PET heat transfer film preparation, it eliminates steps such as static electricity removal and repeated gravure coating, achieving one-time molding with double coating. Compared to PET film, which is limited by the production speed of PET coating, this method for preparing a color-fixed ink-carrying heat transfer film allows for a drying temperature of up to 170℃, increasing printing speed and doubling production efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the color-fixing ink-carrying hot-stamping film in this embodiment.

[0029] Figure 2 This is a schematic diagram of the structure of the PE coated paper of the color-fixed ink-carrying hot-pressing film in this embodiment after hot pressing.

[0030] The parts referred to by the numbers in the attached diagram are as follows: 1-substrate layer, 2-surface color fixing ink layer, 3-ink layer. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0032] Example 1

[0033] A PE coated paper-based hot stamping film includes a substrate layer 1 and a surface color-fixing ink-carrying layer 2. The substrate layer 1 is a PE coated paper substrate, and the surface color-fixing ink-carrying layer 2 is coated on the substrate layer 1. The surface color-fixing ink-carrying layer 2 directly fixes pigment or dye molecules in the coating ink to form a printed pattern.

[0034] The surface-fixing ink-carrying layer 2 includes a grid-like polymer cross-linking layer. One end of the polymer cross-linking layer is connected to the substrate film, and the other end is covered with an ion layer to achieve direct fixation of pigment or dye molecules to form a pattern, which is the ink layer 3.

[0035] Specifically, the grid-like polymer crosslinking layer in the surface color-fixing ink carrier layer 2 is composed of sodium carboxymethyl cellulose, polyurethane emulsion, methacrylate-acrylate-ethylene copolymer emulsion, cationic polyacrylamide, and organic dimethyl silicone resin, while the ion layer is composed of fatty acid salt emulsion, wax emulsion, and inorganic salt solution.

[0036] The surface of the hot-pressed film is formed with a concave-convex structure by hot pressing. The concave-convex structure includes a number of equally spaced concave portions, each of which is an inwardly concave hemispherical shape.

[0037] Example 2

[0038] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 2 parts sodium carboxymethyl cellulose, 8 parts polyurethane emulsion, 2 parts methacrylate-acrylate-ethylene copolymer emulsion, 5 parts cationic polyacrylamide, 30 parts organic dimethyl silicone resin, 4 parts fatty acid salt emulsion, 20 parts wax emulsion, and 10 parts inorganic salt solution.

[0039] The methacrylate-acrylate-ethylene copolymer emulsion has an ethylene content of 20-40% and a solid content of 30-46%. The polyurethane emulsion is a polyester-type polyurethane with a solid content of 30-46%.

[0040] The fatty acid salt emulsion has a solid content of 40-50% and the fatty acid has 12-22 carbons, with carbon 16-18 being the optimal choice; the wax emulsion has a solid content of 40-50% and the fatty acid has 14-20 carbons, with carbon 16-18 being the optimal choice.

[0041] The inorganic salt solution is one or a combination of two of BaCl2, ZnCl2, CaCl2, MgCl2, and AlCl3, with a liquid concentration of 10%-20%; the ratio of the two is 100:32 to 100:13.

[0042] Example 3

[0043] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 2 parts sodium carboxymethyl cellulose, 7 parts polyurethane emulsion, 4 parts methacrylate-acrylate-ethylene copolymer emulsion, 5 parts cationic polyacrylamide, 35 parts organic dimethyl silicone resin, 3 parts fatty acid salt emulsion, 25 parts wax emulsion, and 15 parts inorganic salt solution.

[0044] Example 4

[0045] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 4 parts sodium carboxymethyl cellulose, 10 parts polyurethane emulsion, 3 parts methacrylate-acrylate-ethylene copolymer emulsion, 6 parts cationic polyacrylamide, 40 parts organic dimethyl silicone resin, 5 parts fatty acid salt emulsion, 22 parts wax emulsion, and 12 parts inorganic salt solution.

[0046] Example 5

[0047] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 6 parts of sodium carboxymethyl cellulose, 10 parts of polyurethane emulsion, 4 parts of methacrylate-acrylate-ethylene copolymer emulsion, 7 parts of cationic polyacrylamide, 45 parts of organic dimethyl silicone resin, 6 parts of fatty acid salt emulsion, 27 parts of wax emulsion, and 13 parts of inorganic salt solution.

[0048] Example 6

[0049] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 8 parts of sodium carboxymethyl cellulose, 10 parts of polyurethane emulsion, 2 parts of methacrylate-acrylate-ethylene copolymer emulsion, 7 parts of cationic polyacrylamide, 47 parts of organic dimethyl silicone resin, 8 parts of fatty acid salt emulsion, 27 parts of wax emulsion, and 10 parts of inorganic salt solution.

[0050] Example 7

[0051] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 10 parts of sodium carboxymethyl cellulose, 15 parts of polyurethane emulsion, 5 parts of methacrylate-acrylate-ethylene copolymer emulsion, 6 parts of cationic polyacrylamide, 45 parts of organic dimethyl silicone resin, 8 parts of fatty acid salt emulsion, 27 parts of wax emulsion, and 17 parts of inorganic salt solution.

[0052] Example 8

[0053] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 10 parts of sodium carboxymethyl cellulose, 15 parts of polyurethane emulsion, 5 parts of methacrylate-acrylate-ethylene copolymer emulsion, 6 parts of cationic polyacrylamide, 40 parts of organic dimethyl silicone resin, 5 parts of fatty acid salt emulsion, 24 parts of wax emulsion, and 12 parts of inorganic salt solution.

[0054] Example 9

[0055] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 5 parts sodium carboxymethyl cellulose, 15 parts polyurethane emulsion, 5 parts methacrylate-acrylate-ethylene copolymer emulsion, 5 parts cationic polyacrylamide, 30 parts organic dimethyl silicone resin, 3 parts fatty acid salt emulsion, 20 parts wax emulsion, and 10 parts inorganic salt solution.

[0056] Example 10

[0057] This embodiment provides a PE coated paper-based hot-stamping film, which differs from the above embodiment only in that: the surface color-fixing ink carrier layer 2 includes, by weight, 10 parts of sodium carboxymethyl cellulose, 15 parts of polyurethane emulsion, 5 parts of methacrylate-acrylate-ethylene copolymer emulsion, 7 parts of cationic polyacrylamide, 47 parts of organic dimethyl silicone resin, 8 parts of fatty acid salt emulsion, 27 parts of wax emulsion, and 17 parts of inorganic salt solution.

[0058] Example 11

[0059] This embodiment provides a method for preparing a PE coated paper-based hot-stamping film, which includes the following steps:

[0060] (1) Preparation of surface-fixed ink carrier layer 2:

[0061] 1) Sodium carboxymethyl cellulose, polyurethane emulsion, and methacrylate-acrylate-ethylene copolymer emulsion are added to a high-speed dispersion tank and dispersed at 300-500 r / min for 5-10 min to form a dispersion with dispersing effect; then cationic polyacrylamide is added and dispersed at 1500-2000 r / min for 30-40 min to obtain a dispersion of the composition.

[0062] 2) Add the inorganic salt solution while stirring at 300-500 r / min, and stir for 5-10 min at this speed to obtain a mixed dispersion;

[0063] 3) Continue stirring at 300-500 r / min, add organic dimethyl silicone resin. After the addition is complete, continue adding fatty acid salt emulsion and wax emulsion at the same speed, stir for 5-10 min, and then measure the solid content and viscosity for later use.

[0064] (2) Preparation of hot-fixing film: A surface-fixing ink carrier material is coated on one side of the substrate layer 1 and dried to form a surface-fixing ink carrier layer 2.

[0065] This invention involves coating a surface-fixing ink-carrying layer 2 onto the surface of a PE-coated paper base. This layer 2 possesses excellent ink absorption and adsorption properties, and it rapidly combines with the fixative in the composition to form a complex, effectively locking in the ink and preventing ink penetration. Simultaneously, the silicone resin cross-links with the fixative and water-based polyurethane, enhancing the strength of the network structure of the ink-absorbing coating and further preventing ink penetration, thereby improving the transfer rate and image resolution of the heat transfer paper. Compared to existing PET films prepared using PET as the substrate, this invention is more cost-effective and offers better water resistance and printability.

[0066] The technical solution of the present invention will be further illustrated below through specific embodiments to better understand the present invention.

[0067] Experimental example: Surface fixing ink carrier material was prepared according to the weight ratios shown in Examples 1, 2 and 3, and the surface fixing ink carrier material was coated on one side of PE coated paper base. After drying at 150-180℃, a PE coated paper base hot-stamping film with fixing ink carrier layer was formed.

[0068] Comparative example: Without using inorganic salt solution, surface fixing ink carrier materials were prepared according to the weight ratios shown in Examples 1, 2 and 3, and the surface fixing ink carrier materials were coated on one side of PE coated paper base. After drying at 150-180℃, a PE coated paper base hot-stamping film was formed.

[0069] The heat transfer method for the PE coated paper-based hot-stamping film in each test example and comparative example is the same. The specific method for heat transfer of the PE coated paper-based hot-stamping film is as follows: ink is printed on the PE coated paper-based hot-stamping film by inkjet printing, and hot melt powder is sprinkled on the printed pattern. After the hot melt powder is heated and melted into a viscous flow state, the transfer layer of the PE coated paper-based hot-stamping film is placed with the substrate facing the fabric. The PE coated paper-based hot-stamping film is pressed in a hot press machine at 170°C for 10 seconds to obtain the printed pattern on the fabric surface.

[0070] Specific performance tests:

[0071] Test Item 1: Printing Smoothness

[0072] The PE coated paper-based hot-press film prepared in Examples 1, 2, and 3 and the comparative example were printed on a dual-head offset hot-press white ink printer - Q3-E602 inkjet printer. A single color block was printed at 100% inkjet setting. The printing process was observed and recorded, and the test results are shown in Table 1 below. Then, the film was transferred to a white pure cotton fabric and hot-pressed at 160℃~170℃ to obtain the finished fabric.

[0073] Test Item 2: Evaluation of Support and Color Fixation Effect

[0074] The PE-coated paper-based heat transfer films prepared in Examples 1, 2, and 3 and the comparative example were used for printing on a dual-head offset heat transfer ink press - Q3-E602 inkjet printer. A single color block was printed at 100% inkjet setting. After printing, hot melt powder was sprinkled onto the pattern. The hot melt powder was heated and melted into a viscous state. The transfer layer of the PE-coated paper-based heat transfer film was then placed with the substrate facing upwards. The film was then pressed for 10 seconds at 170°C using a heat press, resulting in a printed pattern on the fabric surface. Inspection of the surface of the PE-coated paper-based heat transfer film revealed that the support layer was intact and undamaged, indicating that only the color pigment was transferred, and the support layer was not transferred along with it.

[0075] The test results are shown in Table 1 below.

[0076] Table 1

[0077] Test Project Printing smoothness Support layer retention effect Example 1 Continuous printing of 500ml, smooth printing with no white lines. good Example 2 Continuous printing of 500ml, smooth printing with no white lines. good Example 3 Continuous printing of 500ml, smooth printing with no white lines. good

[0078] In addition, in Comparative Examples 1-2, water-based pigment inks were transferred onto the ink-absorbing layer of a PE coated paper-based hot-stamping film. The PE coated paper-based film was damaged according to the pattern shape and then transferred onto the fabric.

[0079] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A PE-coated paper-based hot-stamping film, characterized in that: It includes a substrate layer (1) and a surface color-fixing ink carrier layer (2). The substrate layer (1) includes a PE coated paper base. The surface color-fixing ink carrier layer (2) is coated on the substrate layer (1). The surface color-fixing ink carrier layer (2) directly fixes the pigment or dye molecules in the coating ink to form a printing pattern. The surface color-fixing ink carrier layer (2) comprises, by weight, 2-10 parts of sodium carboxymethyl cellulose, 7-15 parts of polyurethane emulsion, 2-5 parts of methacrylate-acrylate-ethylene copolymer emulsion, 5-7 parts of cationic polyacrylamide, 10-17 parts of organic dimethyl silicone resin, 3-8 parts of fatty acid salt emulsion, 20-27 parts of wax emulsion, and 10-17 parts of inorganic salt solution. The surface color-fixing ink-carrying layer (2) includes a grid-shaped polymer cross-linking layer. One end of the polymer cross-linking layer is connected to the substrate layer (1), and the other end is covered with an ion layer to achieve the direct color fixation of pigment or dye molecules to form a pattern, which is the ink layer (3). The surface-fixing ink carrier layer (2) has a grid-like polymer crosslinking layer composed of sodium carboxymethyl cellulose, polyurethane emulsion, methacrylate-acrylate-ethylene copolymer emulsion, cationic polyacrylamide and organic dimethyl silicone resin, and an ion layer composed of fatty acid salt emulsion, wax emulsion and inorganic salt solution.

2. The PE coated paper-based hot-stamping film according to claim 1, characterized in that: The surface of the hot-pressed film is formed with a concave-convex structure by hot pressing. The concave-convex structure includes a number of equally spaced concave portions, each of which is an inwardly concave hemispherical shape.

3. The PE coated paper-based hot-stamping film according to claim 1, characterized in that: The methacrylate-acrylate-ethylene copolymer emulsion has an ethylene content of 20-40% and a solid content of 30-46%. The polyurethane emulsion is a polyester-type polyurethane with a solid content of 30-46%.

4. The PE coated paper-based hot-stamping film according to claim 1, characterized in that: The fatty acid salt emulsion has a solid content of 40-50% and the fatty acid has 12-22 carbon atoms; the wax emulsion has a solid content of 40-50% and the fatty acid has 14-20 carbon atoms.

5. The PE coated paper-based hot-stamping film according to claim 1, characterized in that: The inorganic salt solution is one or a combination of two of BaCl2, ZnCl2, CaCl2, MgCl2, and AlCl3, with a liquid concentration of 10%-20%.

6. A PE-coated paper-based hot-stamping film according to any one of claims 2-5, characterized in that: The method for preparing the surface color-fixing ink-carrying layer includes the following steps: (1) Sodium carboxymethyl cellulose, polyurethane emulsion, and methacrylate-acrylate-ethylene copolymer emulsion are added to a high-speed dispersion tank and dispersed at a speed of 300-500 r / min for 5-10 min to form a dispersion with dispersing effect; then cationic polyacrylamide is added and dispersed at a speed of 1500-2000 r / min for 30-40 min to obtain a dispersion of the composition. (2) Add the inorganic salt solution while stirring at a speed of 300-500 r / min, and stir for 5-10 min at this speed to obtain a mixed dispersion; (3) Continue to add organic dimethyl silicone resin while stirring at a speed of 300-500 r / min. After the addition is complete, continue to add fatty acid salt emulsion and wax emulsion at the same speed, stir for 5-10 min, and then measure the solid content and viscosity for later use.

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