Anti-fingerprint scratch-resistant ink coating heat transfer printing process

Abstract

The invention discloses an anti-fingerprint scratch-resistant ink coating heat transfer printing process, which comprises the following steps of: heating and melting modified ink, coating the modified ink on transfer printing paper, drying, engraving a design pattern by using laser, adhering the transfer printing paper and a transfer printing base material, carrying out hot-pressing transfer printing, and irradiating by using ultraviolet light to finish ink heat transfer printing. The modified ink is prepared from the following raw materials in parts by weight: 20-30 parts of modified resin, 20-25 parts of flax wax, 15-20 parts of beewax, 15-20 parts of castor oil, 8-10 parts of a reinforcing additive, 3-5 parts of modified filler, 1-1.5 parts of KH570, 0.5-1 part of benzoin diethyl ether and 15-20 parts of pigment, and the raw materials are subjected to double-bond polymerization in the raw material mixing and illumination process, so that the cross-linking curing sites of the ink are increased; through cooperation with a layered structure of a modified filler base material graphene, the scratch resistance of the ink is improved, and meanwhile, the reinforcing additive contains flurane, long-chain alkyl and polysiloxane chain segments, so that residues of fingerprints on the surface of the ink can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of thermal transfer ink preparation, and in particular to a thermal transfer process for an anti-fingerprint and anti-scratch ink coating. Background Art

[0002] With the rapid development of industry and the improvement of product quality management, many industrial products, such as instant noodles, snacks, cosmetics, alcoholic beverages, and other packaging materials, need to be printed with production dates and shelf life, and some need to print product identification barcodes and anti-counterfeiting marks. The widespread use of computers and the improvement of printing standards require that tickets (such as bus tickets, train tickets, boat tickets, etc.) and many documents be printed quickly. These tasks are completed on the corresponding printer (or coding machine) by thermal transfer ribbons. Thermal transfer inks are different from ordinary inks: ordinary inks are printed in one go, and the greater the adhesion to the substrate, the better; thermal transfer inks are first printed on the substrate surface (paper substrate, plastic substrate), and then the ink of the graphic part is transferred to the substrate surface through heat. At this stage, transfer inks are prone to residual fingerprints and scratches, which affects normal use. Summary of the invention

[0003] The purpose of the present invention is to provide a thermal transfer process for an anti-fingerprint and anti-scratch ink coating, which solves the problem that fingerprint residues and scratches are easily left on thermal transfer inks at the current stage.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A thermal transfer process for an anti-fingerprint and anti-scratch ink coating comprises the following steps:

[0006] The modified ink is heated and melted, coated on the transfer paper and dried, the design pattern is laser engraved, the transfer paper and the transfer substrate are laminated, hot-pressed and transferred, and then irradiated with 365nm ultraviolet light for 8-10s to complete the ink thermal transfer.

[0007] Further, the modified ink is prepared by the following steps:

[0008] Step A1: EVA resin and toluene are mixed, stirred for 30-40 minutes at a speed of 300-500 r / min and a temperature of 60-70° C., sodium hydroxide solution is added, and the mixture is reacted for 2-3 hours. The mixture is cooled to room temperature and filtered to remove the filtrate. The substrate is dissolved in DMF, stirred at a speed of 150-200 r / min and a temperature of 40-50° C., potassium carbonate and allyl chloride are added, and the mixture is reacted for 3-5 hours to obtain a modified resin;

[0009] Step A2: dispersing graphene oxide in ethanol, stirring and adding KH550 and deionized water at a speed of 150-200 r / min and a temperature of 30-40° C., reacting for 3-5 hours to obtain pretreated graphene, mixing the pretreated graphene, epoxybutene and toluene evenly, introducing nitrogen protection, reacting for 6-8 hours at a speed of 120-150 r / min, a temperature of 25-30° C. and a pH value of 9-10, adding isocyanatepropyltriethoxysilane, and continuing the reaction for 1-1.5 hours to obtain a modified filler;

[0010] Step A3: Tetramethylcyclotetrasiloxane, n-dodecene, chloroplatinic acid and DMF are uniformly mixed, nitrogen is introduced for protection, and the reaction is carried out for 3-5 hours at a speed of 120-150 r / min and a temperature of 70-80° C. to obtain a modified monomer; tetramethyl tri-3-trifluoropropylcyclotetrasiloxane, a modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane and dimethyl sulfoxide are uniformly mixed, nitrogen is introduced for protection, and the reaction is carried out for 3-5 hours at a speed of 120-150 r / min and a temperature of 105-110° C. to obtain a modifier;

[0011] Step A4: Mix the modifier, acrylic acid, dicyclohexylcarbodiimide and DMF, and react for 3-5 hours at a rotation speed of 120-150r / min and a temperature of 25-30°C to obtain a reinforcing additive. Weigh the following raw materials in parts by weight: 20-30 parts of modified resin, 20-25 parts of flax wax, 15-20 parts of beeswax, 15-20 parts of castor oil, 8-10 parts of reinforcing additive, 3-5 parts of modified filler, 1-1.5 parts of KH570, 0.5-1 parts of benzoin ethyl ether and 15-20 parts of pigment, melt and mix the raw materials to obtain a modified ink.

[0012] Furthermore, the amount ratio of the EVA resin, toluene and sodium hydroxide solution described in step A1 is 3g:50mL:25mL, and the sodium hydroxide solution is prepared by mixing sodium hydroxide and methanol in an amount ratio of 1g:20mL.

[0013] Furthermore, the amount of KH550 used in step A2 is 3% of the mass of graphene oxide, and the molar ratio of amino group to epoxybutene on the pretreated graphene is 1:2.

[0014] Further, the molar ratio of tetramethylcyclotetrasiloxane and n-dodecene described in step A3 is 1:4, the amount of chloroplatinic acid used is 1‰ of the mass of tetramethylcyclotetrasiloxane, and the molar ratio of tetramethyltri-3-trifluoropropylcyclotetrasiloxane, modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 1:0.4:1:3:2.

[0015] Furthermore, the molar ratio of the modifier, acrylic acid and dicyclohexylcarbodiimide described in step A4 is 1:1:1.1.

[0016] Beneficial effects of the invention: The invention discloses a thermal transfer process for anti-fingerprint and anti-scratch ink coating, wherein the modified ink is heated and melted, coated on transfer paper and dried, a design pattern is laser engraved, the transfer paper is laminated with a transfer substrate, hot-pressed and transferred, and then irradiated with ultraviolet light to complete the thermal transfer of the ink. The modified ink comprises the following raw materials: modified resin, flax wax, beeswax, castor oil, reinforcing additives, modified fillers, KH570, benzoin ethyl ether and pigment. The modified resin is made of EVA resin as a raw material, treated with alcoholysis of sodium hydroxide solution, and then reacted with allyl chloride to make the hydroxyl groups of the side chains The modified filler is prepared by reacting the chlorine atom sites on the alkyl group and the allyl chlorine with each other to obtain a modified resin. The modified filler is treated with graphene oxide as a raw material and treated with KH550 to graft amino groups on the surface to obtain pretreated graphene. The pretreated graphene is reacted with epoxybutylene to react the amino groups on the pretreated graphene with the epoxy groups on the epoxybutylene to produce new hydroxyl groups. Isocyanatepropyl triethoxysilane is then added to react the isocyanate groups on the isocyanatepropyl triethoxysilane with the hydroxyl groups to obtain a modified filler. Tetramethylcyclotetrasiloxane is reacted with n-dodecene to react the S on the tetramethylcyclotetrasiloxane with hydroxyl groups. iH bond and double bond on n-dodecene to obtain modified monomer, tetramethyl tri-3-trifluoropropyl cyclotetrasiloxane, modified monomer and octamethyl cyclotetrasiloxane are ring-opened, and then reacted with 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane to form amino-terminated polysiloxane to obtain modifier, the modifier and acrylic acid are reacted under the action of dicyclohexylcarbodiimide to make the amino group on the modifier and the carboxyl group on the acrylic acid dehydrate to obtain strengthening additive, and in the process of mixing raw materials and irradiating with light, the modified resin side The double bonds on the chain, the double bonds on castor oil, the double bonds on the reinforcing additives, the double bonds on the modified filler and the double bonds on KH570 are polymerized, thereby increasing the cross-linking and curing sites of the ink, and cooperating with the layered structure of the modified filler substrate graphene to increase the scratch resistance of the ink. At the same time, the reinforcing additives contain fluorocarbons, long-chain alkyls and polysiloxane segments, which can reduce the residual fingerprints on the surface of the ink. After long-term contact with moisture in the air, KH570 and the siloxane on the modified filler will undergo hydrolysis and cross-linking, further increasing the cross-linking sites, thereby further improving the scratch resistance. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1: A thermal transfer process for an anti-fingerprint and anti-scratch ink coating, comprising the following steps:

[0019] The modified ink is heated and melted, coated on the transfer paper and dried, the design pattern is laser engraved, the transfer paper and the transfer substrate are laminated, hot-pressed and transferred, and then irradiated with 365nm ultraviolet light for 8s to complete the ink thermal transfer.

[0020] The modified ink is prepared by the following steps:

[0021] Step A1: EVA resin and toluene are mixed, stirred at a speed of 300 r / min and a temperature of 60° C. for 30 min, and then a sodium hydroxide solution is added to react for 2 h. The mixture is cooled to room temperature and filtered to remove the filtrate. The substrate is dissolved in DMF, stirred at a speed of 150 r / min and a temperature of 40° C., and potassium carbonate and allyl chloride are added to react for 3 h to obtain a modified resin;

[0022] Step A2: dispersing graphene oxide in ethanol, stirring and adding KH550 and deionized water at a speed of 150 r / min and a temperature of 30° C., reacting for 3 hours to obtain pretreated graphene, mixing the pretreated graphene, epoxybutene and toluene evenly, introducing nitrogen protection, reacting for 6 hours at a speed of 120 r / min, a temperature of 25° C. and a pH value of 9, adding isocyanatepropyltriethoxysilane, and continuing the reaction for 1 hour to obtain a modified filler;

[0023] Step A3: Tetramethylcyclotetrasiloxane, n-dodecene, chloroplatinic acid and DMF are mixed uniformly, nitrogen is introduced for protection, and the reaction is carried out for 3 hours at a speed of 120 r / min and a temperature of 70° C. to obtain a modified monomer; tetramethyl tri-3-trifluoropropylcyclotetrasiloxane, a modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane and dimethyl sulfoxide are mixed uniformly, nitrogen is introduced for protection, and the reaction is carried out for 3 hours at a speed of 120 r / min and a temperature of 105° C. to obtain a modifier;

[0024] Step A4: Mix the modifier, acrylic acid, dicyclohexylcarbodiimide and DMF, and react for 3 hours at a speed of 120 r / min and a temperature of 25°C to obtain a reinforcing additive. Weigh the following raw materials in parts by weight: 20 parts of modified resin, 20 parts of flax wax, 15 parts of beeswax, 15 parts of castor oil, 8 parts of reinforcing additive, 3 parts of modified filler, 1 part of KH570, 0.5 parts of benzoin ethyl ether and 15 parts of pigment, melt and mix the raw materials to obtain a modified ink.

[0025] The amount ratio of the EVA resin, toluene and sodium hydroxide solution described in step A1 is 3g:50mL:25mL, the sodium hydroxide solution is prepared by mixing sodium hydroxide and methanol in an amount ratio of 1g:20mL, and the model of the EVA resin is 7350M.

[0026] The amount of KH550 used in step A2 is 3% of the mass of graphene oxide, and the molar ratio of amino group to epoxybutene on the pretreated graphene is 1:2.

[0027] The molar ratio of tetramethylcyclotetrasiloxane and n-dodecene described in step A3 is 1:4, the amount of chloroplatinic acid used is 1‰ of the mass of tetramethylcyclotetrasiloxane, and the molar ratio of tetramethyltri-3-trifluoropropylcyclotetrasiloxane, modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 1:0.4:1:3:2.

[0028] The molar ratio of the modifier, acrylic acid and dicyclohexylcarbodiimide described in step A4 is 1:1:1.1.

[0029] Embodiment 2: A thermal transfer process for an anti-fingerprint and anti-scratch ink coating, comprising the following steps:

[0030] The modified ink is heated and melted, coated on the transfer paper and dried, the design pattern is laser engraved, the transfer paper and the transfer substrate are laminated, hot-pressed and transferred, and then irradiated with 365nm ultraviolet light for 9s to complete the ink thermal transfer.

[0031] The modified ink is prepared by the following steps:

[0032] Step A1: EVA resin and toluene are mixed, stirred at a speed of 300 r / min and a temperature of 65° C. for 35 min, and then a sodium hydroxide solution is added to react for 3 h. The mixture is cooled to room temperature and filtered to remove the filtrate. The substrate is dissolved in DMF, stirred at a speed of 150 r / min and a temperature of 45° C., and potassium carbonate and allyl chloride are added to react for 4 h to obtain a modified resin;

[0033] Step A2: dispersing graphene oxide in ethanol, stirring and adding KH550 and deionized water at a speed of 150 r / min and a temperature of 35° C., reacting for 4 hours to obtain pretreated graphene, mixing the pretreated graphene, epoxybutene and toluene evenly, introducing nitrogen protection, reacting for 7 hours at a speed of 120 r / min, a temperature of 30° C. and a pH value of 9, adding isocyanatepropyltriethoxysilane, and continuing the reaction for 1.5 hours to obtain a modified filler;

[0034] Step A3: Tetramethylcyclotetrasiloxane, n-dodecene, chloroplatinic acid and DMF are mixed uniformly, nitrogen is introduced for protection, and the reaction is carried out for 4 hours at a speed of 120 r / min and a temperature of 75° C. to obtain a modified monomer; tetramethyl tri-3-trifluoropropylcyclotetrasiloxane, a modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane and dimethyl sulfoxide are mixed uniformly, nitrogen is introduced for protection, and the reaction is carried out for 4 hours at a speed of 120 r / min and a temperature of 110° C. to obtain a modifier;

[0035] Step A4: Mix the modifier, acrylic acid, dicyclohexylcarbodiimide and DMF, and react for 4 hours at a speed of 120 r / min and a temperature of 30°C to obtain a reinforcing additive. Weigh the following raw materials in parts by weight: 25 parts of modified resin, 23 parts of flax wax, 18 parts of beeswax, 18 parts of castor oil, 9 parts of reinforcing additive, 4 parts of modified filler, 1.3 parts of KH570, 0.8 parts of benzoin ethyl ether and 18 parts of pigment, melt and mix the raw materials to obtain a modified ink.

[0036] The amount ratio of the EVA resin, toluene and sodium hydroxide solution described in step A1 is 3g:50mL:25mL, the sodium hydroxide solution is prepared by mixing sodium hydroxide and methanol in an amount ratio of 1g:20mL, and the model of the EVA resin is 7350M.

[0037] The amount of KH550 used in step A2 is 3% of the mass of graphene oxide, and the molar ratio of amino group to epoxybutene on the pretreated graphene is 1:2.

[0038] The molar ratio of tetramethylcyclotetrasiloxane and n-dodecene described in step A3 is 1:4, the amount of chloroplatinic acid used is 1‰ of the mass of tetramethylcyclotetrasiloxane, and the molar ratio of tetramethyltri-3-trifluoropropylcyclotetrasiloxane, modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 1:0.4:1:3:2.

[0039] The molar ratio of the modifier, acrylic acid and dicyclohexylcarbodiimide described in step A4 is 1:1:1.1.

[0040] Embodiment 3: A thermal transfer process for an anti-fingerprint and anti-scratch ink coating, comprising the following steps:

[0041] The modified ink is heated and melted, coated on the transfer paper and dried, the design pattern is laser engraved, the transfer paper and the transfer substrate are laminated, hot-pressed and transferred, and then irradiated with 365nm ultraviolet light for 10s to complete the ink thermal transfer.

[0042] The modified ink is prepared by the following steps:

[0043] Step A1: EVA resin and toluene are mixed, stirred at a speed of 500 r / min and a temperature of 70°C for 40 minutes, and then a sodium hydroxide solution is added to react for 3 hours. The mixture is cooled to room temperature and filtered to remove the filtrate. The substrate is dissolved in DMF, stirred at a speed of 200 r / min and a temperature of 50°C, and potassium carbonate and allyl chloride are added to react for 5 hours to obtain a modified resin;

[0044] Step A2: dispersing graphene oxide in ethanol, stirring and adding KH550 and deionized water at a speed of 200 r / min and a temperature of 40°C, reacting for 5 hours to obtain pretreated graphene, mixing the pretreated graphene, epoxybutene and toluene evenly, introducing nitrogen protection, reacting for 8 hours at a speed of 150 r / min, a temperature of 30°C and a pH value of 10, adding isocyanatepropyltriethoxysilane, and continuing the reaction for 1.5 hours to obtain a modified filler;

[0045] Step A3: Tetramethylcyclotetrasiloxane, n-dodecene, chloroplatinic acid and DMF are mixed uniformly, nitrogen is introduced for protection, and the reaction is carried out for 5 hours at a speed of 150 r / min and a temperature of 80° C. to obtain a modified monomer; tetramethyl tri-3-trifluoropropylcyclotetrasiloxane, a modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane and dimethyl sulfoxide are mixed uniformly, nitrogen is introduced for protection, and the reaction is carried out for 5 hours at a speed of 150 r / min and a temperature of 110° C. to obtain a modifier;

[0046] Step A4: Mix the modifier, acrylic acid, dicyclohexylcarbodiimide and DMF, and react for 5 hours at a speed of 150 r / min and a temperature of 30°C to obtain a reinforcing additive. Weigh the following raw materials in parts by weight: 30 parts of modified resin, 25 parts of flax wax, 20 parts of beeswax, 20 parts of castor oil, 10 parts of reinforcing additive, 5 parts of modified filler, 1.5 parts of KH570, 1 part of benzoin ethyl ether and 20 parts of pigment, melt and mix the raw materials to obtain a modified ink.

[0047] The amount ratio of the EVA resin, toluene and sodium hydroxide solution described in step A1 is 3g:50mL:25mL, the sodium hydroxide solution is prepared by mixing sodium hydroxide and methanol in an amount ratio of 1g:20mL, and the model of the EVA resin is 7350M.

[0048] The amount of KH550 used in step A2 is 3% of the mass of graphene oxide, and the molar ratio of amino group to epoxybutene on the pretreated graphene is 1:2.

[0049] The molar ratio of tetramethylcyclotetrasiloxane and n-dodecene described in step A3 is 1:4, the amount of chloroplatinic acid used is 1‰ of the mass of tetramethylcyclotetrasiloxane, and the molar ratio of tetramethyltri-3-trifluoropropylcyclotetrasiloxane, modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 1:0.4:1:3:2.

[0050] The molar ratio of the modifier, acrylic acid and dicyclohexylcarbodiimide described in step A4 is 1:1:1.1.

[0051] Comparative Example 1: Compared with Example 1, this comparative example uses EVA resin instead of modified resin, and the other steps are the same.

[0052] Comparative Example 2: Compared with Example 1, no modified filler was added in this comparative example, and the remaining steps were the same.

[0053] Comparative Example 3: Compared with Example 1, no reinforcing additives were added to this comparative example, and the remaining steps were the same.

[0054] The pencil hardness of the inks prepared in Examples 1-3 and Comparative Examples 1-3 was tested according to the standard of GB / T6739-2006, and the anti-fingerprint effect was tested by the color difference method. 10g of vaseline was evenly coated on the surface, and then wiped off after standing for 3 hours. The color difference value was calculated. The test results are shown in Table 1 below.

[0055] Table 1

[0056] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Pencil hardness 4H 4H 4H 3H H 3H Color difference value 0.11 0.09 0.08 0.13 0.16 1.1

[0057] It can be seen from Table 1 above that the present invention has good anti-fingerprint and anti-scratch effects.

[0058] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A thermal transfer process for anti-fingerprint and anti-scratch ink coating, characterized in that: The specific steps include: The modified ink is heated and melted, coated on the transfer paper and dried, the design pattern is laser engraved, the transfer paper and the transfer substrate are laminated, hot-pressed and transferred, and then irradiated with 365nm ultraviolet light for 8-10s to complete the ink thermal transfer.

2. The anti-fingerprint and anti-scratch ink coating thermal transfer process according to claim 1, characterized in that: The modified ink is prepared by the following steps: Step A1: EVA resin and toluene are mixed, stirred for 30-40 minutes at a speed of 300-500 r / min and a temperature of 60-70° C., sodium hydroxide solution is added, and the mixture is reacted for 2-3 hours. The mixture is cooled to room temperature and filtered to remove the filtrate. The substrate is dissolved in DMF, stirred at a speed of 150-200 r / min and a temperature of 40-50° C., potassium carbonate and allyl chloride are added, and the mixture is reacted for 3-5 hours to obtain a modified resin; Step A2: dispersing graphene oxide in ethanol, stirring and adding KH550 and deionized water at a speed of 150-200 r / min and a temperature of 30-40° C., reacting for 3-5 hours to obtain pretreated graphene, mixing the pretreated graphene, epoxybutene and toluene evenly, introducing nitrogen protection, reacting for 6-8 hours at a speed of 120-150 r / min, a temperature of 25-30° C. and a pH value of 9-10, adding isocyanatepropyltriethoxysilane, and continuing the reaction for 1-1.5 hours to obtain a modified filler; Step A3: Tetramethylcyclotetrasiloxane, n-dodecene, chloroplatinic acid and DMF are uniformly mixed, nitrogen is introduced for protection, and the reaction is carried out for 3-5 hours at a speed of 120-150 r / min and a temperature of 70-80° C. to obtain a modified monomer; tetramethyl tri-3-trifluoropropylcyclotetrasiloxane, a modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide, 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane and dimethyl sulfoxide are uniformly mixed, nitrogen is introduced for protection, and the reaction is carried out for 3-5 hours at a speed of 120-150 r / min and a temperature of 105-110° C. to obtain a modifier; Step A4: Mix the modifier, acrylic acid, dicyclohexylcarbodiimide and DMF, and react for 3-5 hours at a rotation speed of 120-150r / min and a temperature of 25-30°C to obtain a reinforcing additive. Weigh the following raw materials in parts by weight: 20-30 parts of modified resin, 20-25 parts of flax wax, 15-20 parts of beeswax, 15-20 parts of castor oil, 8-10 parts of reinforcing additive, 3-5 parts of modified filler, 1-1.5 parts of KH570, 0.5-1 parts of benzoin ethyl ether and 15-20 parts of pigment, melt and mix the raw materials to obtain a modified ink.

3. The anti-fingerprint and anti-scratch ink coating thermal transfer process according to claim 2, characterized in that: The amount ratio of the EVA resin, toluene and sodium hydroxide solution described in step A1 is 3g:50mL:25mL, and the sodium hydroxide solution is prepared by mixing sodium hydroxide and methanol in an amount ratio of 1g:20mL.

4. The anti-fingerprint and anti-scratch ink coating thermal transfer process according to claim 2, characterized in that: The amount of KH550 used in step A2 is 3% of the mass of graphene oxide, and the molar ratio of amino group to epoxybutene on the pretreated graphene is 1:

2.

5. The anti-fingerprint and anti-scratch ink coating thermal transfer process according to claim 2, characterized in that: The molar ratio of tetramethylcyclotetrasiloxane and n-dodecene described in step A3 is 1:4, the amount of chloroplatinic acid used is 1‰ of the mass of tetramethylcyclotetrasiloxane, and the molar ratio of tetramethyltri-3-trifluoropropylcyclotetrasiloxane, modified monomer, octamethylcyclotetrasiloxane, tetramethylammonium hydroxide and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane is 1:0.4:1:3:

2.

6. The anti-fingerprint and anti-scratch ink coating thermal transfer process according to claim 2, characterized in that: The molar ratio of the modifier, acrylic acid and dicyclohexylcarbodiimide described in step A4 is 1:1:1.1.