A method for preparing highly weather-resistant transfer paper

Abstract

The present invention discloses a method for preparing highly weather-resistant transfer paper, comprising the following steps: injecting an ink improver into an ink tank, removing the ink from the blank portion through an ink scraping device, leaving the ink in the finely carved mesh holes of the pattern / texture portion, and transferring the ink to the surface of a heat transfer base paper through existing technology to obtain the transfer paper. The method for preparing the transfer paper of the present invention uses a base agent and a ball-milled slurry to form an ink improver, and wollastonite-modified whisker agent and flaky graphene agent are coordinated and mutually enhanced under the action of a medium body of a silane coupling agent. The cleaning points are improved in the point-like structure distribution system of wollastonite, and the synergistic effect of wollastonite is enhanced under the distribution of whiskers. The anti-fouling and cleaning effect of the system is enhanced by the interlaced flaky graphene in the system, and the water resistance and heat resistance stability of the product are improved. Through the mutual coordination between the raw materials, the performance of the product is significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of transfer paper, and in particular to a method for preparing highly weather-resistant transfer paper. Background Art

[0002] Transfer paper is printed using gravure printing technology. The resulting transfer paper is cut into different lengths according to customer needs and packaged after passing inspection. The ink layer used in transfer paper produced using existing technology has poor stain and cleaning resistance, as well as poor water and heat resistance, limiting the product's effectiveness. Summary of the Invention

[0003] In view of the defects of the prior art, the object of the present invention is to provide a method for preparing a transfer paper with high weather resistance, so as to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The present invention provides a method for preparing a highly weather-resistant transfer paper, comprising the following steps:

[0006] Step 1: Mix 10-15 parts of water-based ink, 8-12 parts of cellulose resin, 4-7 parts of anthraquinone blue dye produced by Lanxess Magories of Germany, 1-3 parts of hindered phenol antioxidant 1010 and 10-15 parts of water to prepare a base agent;

[0007] Step 2: 4-8 parts of wollastonite modified whisker agent, 5-7 parts of flaky graphene agent and 3-6 parts of silane coupling agent are mixed and ball-milled to obtain a ball-milled slurry;

[0008] Step 3: Then, the slurry and the base agent are ball-milled and stirred to obtain an ink improver;

[0009] Step 4: Ink improver is injected into the ink tank, and the ink in the blank part is removed by the ink scraping device, so that the ink remains in the finely carved mesh holes of the pattern / texture part. The ink is transferred to the surface of the heat transfer base paper through existing technology to obtain transfer paper.

[0010] Preferably, the preparation method of the wollastonite modified whisker agent is:

[0011] S01: Sodium silicate and deionized water were stirred and mixed at a weight ratio of 2:5 at 50°C to prepare a sodium silicate solution;

[0012] S02: Stir and mix 3-5 parts of lanthanum chloride solution and 4-7 parts of sodium silicate solution, then add 1-2 parts of phosphate buffer solution and 1-2 parts of urea, stir and mix to obtain a modified solution;

[0013] S03: placing the silicon carbide whiskers in a modification solution 3-5 times the total amount of the silicon carbide whiskers and stirring for modification treatment. After stirring, washing with water and drying to obtain a modified silicon carbide whisker agent;

[0014] S04: mixing the modified silicon carbide whisker agent and wollastonite slurry in a weight ratio of 5:2 and subjecting them to ball milling at a ball milling speed of 1000-1500 r / min. After the ball milling is completed, washing with water and drying to obtain a wollastonite modified whisker agent;

[0015] Preferably, the mass fraction of the lanthanum chloride solution is 3-5%; and the pH value of the phosphate buffer solution is 5.0-5.5.

[0016] Preferably, the stirring temperature of the stirring modification treatment is 50-55° C., the stirring time is 1-2 h, and the stirring speed is 550-750 r / min.

[0017] Preferably, the preparation method of the wollastonite slurry is:

[0018] Add 3-5 parts of yttrium nitrate solution to 10-15 parts of chitosan solution, then add 2-4 parts of wollastonite and 1-2 parts of nano-silica sol, stir evenly, and finally add 1-2 parts of sodium dodecylbenzenesulfonate, continue stirring and mixing thoroughly to obtain wollastonite slurry.

[0019] Preferably, the mass fraction of the yttrium nitrate solution is 2-5%; the mass fraction of the chitosan solution is 4-8%.

[0020] Preferably, the preparation method of the flaky graphene agent is:

[0021] The flake graphene is first heat-treated at 110-120°C for 10-15 minutes, then cooled to 55°C at a rate of 2-4°C / min, immersed in a 10% by mass sodium lignin sulfonate solution for immersion treatment, and after the treatment is completed, washed with water and dried to obtain a flake graphene agent.

[0022] Preferably, the immersion pressure of the immersion treatment is 10-15 MPa, and the immersion time is 1-2 hours.

[0023] Preferably, the preparation method of the silane coupling agent modifier is:

[0024] S101: Stir and mix 3-5 parts of silane coupling agent, 1-2 parts of acetone and 4-6 parts of water;

[0025] S102: Then, 1-2 parts of glycolic acid and 1-2 parts of hexadecyltrimethylammonium bromide are added thereto, and the mixture is stirred thoroughly to obtain a silane coupling agent.

[0026] Preferably, the silane coupling agent is silane coupling agent KH560.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The preparation method of the transfer paper of the present invention adopts a base agent and a ball-milled slurry to form an ink improver, and a wollastonite-modified whisker agent and a flaky graphene agent are coordinated and mutually enhanced under the medium action of a silane coupling agent modifier. The cleaning points are improved in the point-like structure distribution system of the wollastonite, and the synergistic effect of the wollastonite is enhanced under the distribution of the whiskers. The anti-fouling and cleaning effect of the system is enhanced by the interlaced flaky graphene in the system, and the water resistance and heat resistance stability of the product are improved. Through the mutual coordination between the raw materials, the performance of the product is significantly improved. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The method for preparing a highly weather-resistant transfer paper of this embodiment includes the following steps:

[0031] Step 1: Mix 10-15 parts of water-based ink, 8-12 parts of cellulose resin, 4-7 parts of anthraquinone blue dye produced by Lanxess Magories of Germany, 1-3 parts of hindered phenol antioxidant 1010 and 10-15 parts of water to prepare a base agent;

[0032] Step 2: 4-8 parts of wollastonite modified whisker agent, 5-7 parts of flaky graphene agent and 3-6 parts of silane coupling agent are mixed and ball-milled to obtain a ball-milled slurry;

[0033] Step 3: Then, the slurry and the base agent are ball-milled and stirred to obtain an ink improver;

[0034] Step 4: Ink improver is injected into the ink tank, and the ink in the blank part is removed by the ink scraping device, so that the ink remains in the finely carved mesh holes of the pattern / texture part. The ink is transferred to the surface of the heat transfer base paper through existing technology to obtain transfer paper.

[0035] The preparation method of the wollastonite modified whisker agent of the present embodiment is:

[0036] S01: Sodium silicate and deionized water were stirred and mixed at a weight ratio of 2:5 at 50°C to prepare a sodium silicate solution;

[0037] S02: Stir and mix 3-5 parts of lanthanum chloride solution and 4-7 parts of sodium silicate solution, then add 1-2 parts of phosphate buffer solution and 1-2 parts of urea, stir and mix to obtain a modified solution;

[0038] S03: placing the silicon carbide whiskers in a modification solution 3-5 times the total amount of the silicon carbide whiskers and stirring for modification treatment. After stirring, washing with water and drying to obtain a modified silicon carbide whisker agent;

[0039] S04: mixing the modified silicon carbide whisker agent and wollastonite slurry in a weight ratio of 5:2 and subjecting them to ball milling at a ball milling speed of 1000-1500 r / min. After the ball milling is completed, washing with water and drying to obtain a wollastonite modified whisker agent;

[0040] The mass fraction of the lanthanum chloride solution of this embodiment is 3-5%; the pH value of the phosphate buffer solution is 5.0-5.5.

[0041] The stirring temperature of the stirring modification treatment in this embodiment is 50-55° C., the stirring time is 1-2 h, and the stirring speed is 550-750 r / min.

[0042] The preparation method of the wollastonite slurry of the present embodiment is:

[0043] Add 3-5 parts of yttrium nitrate solution to 10-15 parts of chitosan solution, then add 2-4 parts of wollastonite and 1-2 parts of nano-silica sol, stir evenly, and finally add 1-2 parts of sodium dodecylbenzenesulfonate, continue stirring and mixing thoroughly to obtain wollastonite slurry.

[0044] The mass fraction of the yttrium nitrate solution in this embodiment is 2-5%; the mass fraction of the chitosan solution is 4-8%.

[0045] The preparation method of the flake graphene agent of this embodiment is:

[0046] The flake graphene is first heat-treated at 110-120°C for 10-15 minutes, then cooled to 55°C at a rate of 2-4°C / min, immersed in a 10% by mass sodium lignin sulfonate solution for immersion treatment, and after the treatment is completed, washed with water and dried to obtain a flake graphene agent.

[0047] The immersion pressure of the immersion treatment in this embodiment is 10-15 MPa, and the immersion time is 1-2 hours.

[0048] The preparation method of the silane coupling agent conditioning agent of this embodiment is:

[0049] S101: Stir and mix 3-5 parts of silane coupling agent, 1-2 parts of acetone and 4-6 parts of water;

[0050] S102: Then, 1-2 parts of glycolic acid and 1-2 parts of hexadecyltrimethylammonium bromide are added thereto, and the mixture is stirred thoroughly to obtain a silane coupling agent.

[0051] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0052] Example 1.

[0053] The method for preparing a highly weather-resistant transfer paper of this embodiment includes the following steps:

[0054] Step 1: 10 parts of water-based ink, 8 parts of cellulose resin, 4 parts of anthraquinone blue dye produced by Lanxess Magories of Germany, 1 part of hindered phenol antioxidant 1010 and 10 parts of water are mixed to prepare a base agent;

[0055] Step 2: 4 parts of wollastonite modified whisker agent, 5 parts of flaky graphene agent and 3 parts of silane coupling agent are mixed and ball-milled to obtain a ball-milled slurry;

[0056] Step 3: Then, the slurry and the base agent are ball-milled and stirred to obtain an ink improver;

[0057] Step 4: Ink improver is injected into the ink tank, and the ink in the blank part is removed by the ink scraping device, so that the ink remains in the finely carved mesh holes of the pattern / texture part. The ink is transferred to the surface of the heat transfer base paper through existing technology to obtain transfer paper.

[0058] The preparation method of the wollastonite modified whisker agent of the present embodiment is:

[0059] S01: Sodium silicate and deionized water were stirred and mixed at a weight ratio of 2:5 at 50°C to prepare a sodium silicate solution;

[0060] S02: Stir and mix 3 parts of lanthanum chloride solution and 4 parts of sodium silicate solution, then add 1 part of phosphate buffer solution and 1 part of urea, stir and mix to obtain a modified solution;

[0061] S03: placing the silicon carbide whiskers in a modification solution three times the total amount of the silicon carbide whiskers and stirring for modification treatment. After stirring, washing with water and drying to obtain a modified silicon carbide whisker agent;

[0062] S04: mixing the modified silicon carbide whisker agent and wollastonite slurry in a weight ratio of 5:2 and subjecting them to ball milling at a ball milling speed of 1000 r / min. After the ball milling is completed, washing and drying are performed to obtain the wollastonite modified whisker agent;

[0063] The mass fraction of the lanthanum chloride solution of this embodiment is 3%; the pH value of the phosphate buffer solution is 5.0.

[0064] The stirring temperature of the stirring modification treatment in this embodiment is 50° C., the stirring time is 1 h, and the stirring speed is 550 r / min.

[0065] The preparation method of the wollastonite slurry of the present embodiment is:

[0066] 3 parts of yttrium nitrate solution were added to 10 parts of chitosan solution, followed by adding 2 parts of wollastonite and 1 part of nano-silica sol, stirring evenly, and finally adding 1 part of sodium dodecylbenzenesulfonate, continuing to stir and mix thoroughly to obtain wollastonite slurry.

[0067] The mass fraction of the yttrium nitrate solution in this embodiment is 2%; the mass fraction of the chitosan solution is 4%.

[0068] The preparation method of the flake graphene agent of this embodiment is:

[0069] The flake graphene was first heat-treated at 110°C for 10 minutes, then cooled to 55°C at a rate of 2°C / min, immersed in a 10% by mass sodium lignin sulfonate solution, and after the treatment, washed with water and dried to obtain a flake graphene agent.

[0070] The immersion pressure of the immersion treatment in this embodiment is 10 MPa, and the immersion time is 1 hour.

[0071] The preparation method of the silane coupling agent conditioning agent of this embodiment is:

[0072] S101: Stir and mix 3 parts of silane coupling agent, 1 part of acetone and 4 parts of water;

[0073] S102: Then, add 1 part of glycolic acid and 1 part of hexadecyltrimethylammonium bromide thereto, and stir thoroughly to obtain a silane coupling agent preparation agent.

[0074] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0075] Example 2.

[0076] The method for preparing a highly weather-resistant transfer paper of this embodiment includes the following steps:

[0077] Step 1: 15 parts of water-based ink, 12 parts of cellulose resin, 7 parts of anthraquinone blue dye produced by Lanxess Magories of Germany, 3 parts of hindered phenol antioxidant 1010 and 15 parts of water are mixed to prepare a base agent;

[0078] Step 2: 8 parts of wollastonite modified whisker agent, 7 parts of flaky graphene agent and 6 parts of silane coupling agent are mixed and ball-milled to obtain a ball-milled slurry;

[0079] Step 3: Then, the slurry and the base agent are ball-milled and stirred to obtain an ink improver;

[0080] Step 4: Ink improver is injected into the ink tank, and the ink in the blank part is removed by the ink scraping device, so that the ink remains in the finely carved mesh holes of the pattern / texture part. The ink is transferred to the surface of the heat transfer base paper through existing technology to obtain transfer paper.

[0081] The preparation method of the wollastonite modified whisker agent of the present embodiment is:

[0082] S01: Sodium silicate and deionized water were stirred and mixed at a weight ratio of 2:5 at 50°C to prepare a sodium silicate solution;

[0083] S02: First, stir and mix 5 parts of lanthanum chloride solution and 7 parts of sodium silicate solution, then add 2 parts of phosphate buffer solution and 2 parts of urea, stir and mix to obtain a modified solution;

[0084] S03: placing the silicon carbide whiskers in a modification solution with a volume 5 times the total volume of the silicon carbide whiskers and stirring for modification treatment, washing with water and drying after the stirring is completed to obtain a modified silicon carbide whisker agent;

[0085] S04: mixing the modified silicon carbide whisker agent and wollastonite slurry in a weight ratio of 5:2 and subjecting them to ball milling at a ball milling speed of 1500 r / min. After the ball milling is completed, washing and drying are performed to obtain a wollastonite modified whisker agent;

[0086] The mass fraction of the lanthanum chloride solution in this embodiment is 5%; the pH value of the phosphate buffer solution is 5.5.

[0087] The stirring temperature of the stirring modification treatment in this embodiment is 55° C., the stirring time is 2 h, and the stirring speed is 750 r / min.

[0088] The preparation method of the wollastonite slurry of the present embodiment is:

[0089] 5 parts of yttrium nitrate solution were added to 15 parts of chitosan solution, followed by 4 parts of wollastonite and 2 parts of nano-silica sol, stirred evenly, and finally 2 parts of sodium dodecylbenzenesulfonate were added, and stirring was continued to be thorough to obtain wollastonite slurry.

[0090] The mass fraction of the yttrium nitrate solution in this embodiment is 5%; the mass fraction of the chitosan solution is 8%.

[0091] The preparation method of the flake graphene agent of this embodiment is:

[0092] The flake graphene was first heat-treated at 120°C for 15 minutes, then cooled to 55°C at a rate of 4°C / min, immersed in a 10% by mass sodium lignin sulfonate solution, and after the treatment, washed with water and dried to obtain a flake graphene agent.

[0093] The immersion pressure of the immersion treatment in this embodiment is 15 MPa, and the immersion time is 2 hours.

[0094] The preparation method of the silane coupling agent conditioning agent of this embodiment is:

[0095] S101: Stir and mix 5 parts of silane coupling agent, 2 parts of acetone and 6 parts of water;

[0096] S102: Then, 2 parts of glycolic acid and 2 parts of hexadecyltrimethylammonium bromide are added thereto, and the mixture is stirred thoroughly to obtain a silane coupling agent preparation agent.

[0097] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0098] Example 3.

[0099] The method for preparing a highly weather-resistant transfer paper of this embodiment includes the following steps:

[0100] Step 1: 12.5 parts of water-based ink, 10 parts of cellulose resin, 5.5 parts of anthraquinone blue dye produced by Lanxess Magories of Germany, 2 parts of hindered phenol antioxidant 1010 and 12.5 parts of water are mixed to prepare a base agent;

[0101] Step 2: 6 parts of wollastonite modified whisker agent, 6 parts of flaky graphene agent and 4.5 parts of silane coupling agent are mixed and ball-milled to obtain a ball-milled slurry;

[0102] Step 3: Then, the slurry and the base agent are ball-milled and stirred to obtain an ink improver;

[0103] Step 4: Ink improver is injected into the ink tank, and the ink in the blank part is removed by the ink scraping device, so that the ink remains in the finely carved mesh holes of the pattern / texture part. The ink is transferred to the surface of the heat transfer base paper through existing technology to obtain transfer paper.

[0104] The preparation method of the wollastonite modified whisker agent of the present embodiment is:

[0105] S01: Sodium silicate and deionized water were stirred and mixed at a weight ratio of 2:5 at 50°C to prepare a sodium silicate solution;

[0106] S02: 4 parts of lanthanum chloride solution and 5.5 parts of sodium silicate solution were stirred and mixed, and then 1.5 parts of phosphate buffer solution and 1.5 parts of urea were added and stirred to obtain a modified solution;

[0107] S03: placing the silicon carbide whiskers in a modification solution with a volume of 4 times the total volume of the silicon carbide whiskers and stirring for modification treatment, washing with water, and drying to obtain a modified silicon carbide whisker agent;

[0108] S04: mixing the modified silicon carbide whisker agent and wollastonite slurry in a weight ratio of 5:2 and subjecting them to ball milling at a ball milling speed of 1250 r / min. After the ball milling is completed, washing and drying are performed to obtain the wollastonite modified whisker agent;

[0109] The mass fraction of the lanthanum chloride solution of this embodiment is 4%; the pH value of the phosphate buffer solution is 5.2.

[0110] The stirring temperature of the stirring modification treatment in this embodiment is 52.5° C., the stirring time is 1.5 h, and the stirring speed is 600 r / min.

[0111] The preparation method of the wollastonite slurry of the present embodiment is:

[0112] 4 parts of yttrium nitrate solution were added to 12.5 parts of chitosan solution, followed by 3 parts of wollastonite and 1.5 parts of nano-silica sol, stirred evenly, and finally 1.5 parts of sodium dodecylbenzenesulfonate were added, and stirring was continued to mix thoroughly to obtain wollastonite slurry.

[0113] The mass fraction of the yttrium nitrate solution in this embodiment is 3.5%; the mass fraction of the chitosan solution is 6%.

[0114] The preparation method of the flake graphene agent of this embodiment is:

[0115] The flaky graphene was first heat-treated at 115°C for 12.5 minutes, then cooled to 55°C at a rate of 3°C / min, immersed in a 10% by mass sodium lignin sulfonate solution, and after the treatment, washed with water and dried to obtain a flaky graphene agent.

[0116] The immersion pressure of the immersion treatment in this embodiment is 12.5 MPa, and the immersion time is 1.5 h.

[0117] The preparation method of the silane coupling agent conditioning agent of this embodiment is:

[0118] S101: Stir and mix 4 parts of silane coupling agent, 1.5 parts of acetone and 5 parts of water;

[0119] S102: Then, 1.5 parts of glycolic acid and 1.5 parts of hexadecyltrimethylammonium bromide were added thereto, and the mixture was stirred thoroughly to obtain a silane coupling agent preparation agent.

[0120] The silane coupling agent in this embodiment is silane coupling agent KH560.

[0121] Comparative Example 1.

[0122] The difference from Example 3 is that no wollastonite modified whisker agent is added.

[0123] Comparative Example 2.

[0124] The difference from Example 3 is that the wollastonite modified whisker agent is not treated with a modifying liquid.

[0125] Comparative Example 3.

[0126] The difference from Example 3 is that no wollastonite slurry is added to the wollastonite modified whisker agent.

[0127] Comparative Example 4.

[0128] The difference from Example 3 is that no yttrium nitrate solution or nano-silica sol is added to the wollastonite slurry.

[0129] Comparative Example 5.

[0130] The difference from Example 3 is that no flake graphene agent is added.

[0131] Comparative Example 6

[0132] The difference from Example 3 is that no silane coupling agent or modifier is used for treatment.

[0133] The products of Examples 1-3 and Comparative Examples 1-6 were coated on the test products by applying oil, dirt and dust in a weight ratio of 2:1, and then placed at 40°C for 12 hours. They were then wiped to test whether the wiping force applied could wipe off the dirt.

[0134] The product is placed at 65°C for 6 hours to test heat resistance stability, and the product is immersed in water for 6 hours to test water resistance stability.

[0135] The performance measurement results of Examples 1-3 and Comparative Examples 1-6 are as follows

[0136]

[0137] From Examples 1-3 and Comparative Examples 1-6, it can be concluded that the product of Example 3 of the present invention has excellent stain resistance and cleaning power, and the stain resistance and cleaning stability of the product under heat and water resistance conditions are obvious;

[0138] Without adding wollastonite modified whisker agent, without adding wollastonite modified whisker agent, and without using silane coupling agent as a modifier, the performance of the product is significantly reduced. Only when the three are combined and work together, the performance effect of the product is most obvious.

[0139] At the same time, it was found that when the wollastonite modified whisker agent was not treated with a modifying liquid, wollastonite slurry was not added to the wollastonite modified whisker agent, and yttrium nitrate solution and nano-silica sol were not added to the wollastonite slurry, the performance of the product tended to deteriorate. Only the wollastonite modified whisker agent prepared by the method of the present invention had the most significant improvement effect, and other replacement methods were not as obvious as the effect of the present invention.

[0140] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0141] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for preparing highly weather-resistant transfer paper, characterized in that: The following steps are involved: Step 1: Mix 10-15 parts of water-based ink, 8-12 parts of cellulose resin, 4-7 parts of anthraquinone blue dye produced by Lanxess Magories of Germany, 1-3 parts of hindered phenol antioxidant 1010 and 10-15 parts of water to prepare a base agent; Step 2: 4-8 parts of wollastonite modified whisker agent, 5-7 parts of flake graphene agent and 3-6 parts of silane coupling agent are mixed and ball-milled to obtain ball-milled slurry; Step 3: Then, the slurry and the base agent are ball-milled and stirred to obtain an ink improver; Step 4: Ink improver is injected into the ink tank, and the ink in the blank part is removed by the ink scraping device, so that the ink remains in the finely carved mesh cells of the pattern part. The ink is transferred to the surface of the thermal transfer base paper by existing technology to obtain transfer paper; The preparation method of the wollastonite modified whisker agent is: S01: Sodium silicate and deionized water were stirred and mixed at a weight ratio of 2:5 at 50°C to prepare a sodium silicate solution; S02: Stir and mix 3-5 parts of lanthanum chloride solution and 4-7 parts of sodium silicate solution, then add 1-2 parts of phosphate buffer solution and 1-2 parts of urea, stir and mix to obtain a modified solution; S03: placing the silicon carbide whiskers in a modification solution 3-5 times the total amount of the silicon carbide whiskers and stirring for modification treatment. After stirring, washing with water and drying to obtain a modified silicon carbide whisker agent; S04: mixing the modified silicon carbide whisker agent and wollastonite slurry in a weight ratio of 5:2 and subjecting them to ball milling at a ball milling speed of 1000-1500 r / min. After the ball milling is completed, washing with water and drying to obtain a wollastonite modified whisker agent; The mass fraction of the lanthanum chloride solution is 3-5%; the pH value of the phosphate buffer solution is 5.0-5.5; The stirring temperature of the stirring modification treatment is 50-55°C, the stirring time is 1-2h, and the stirring speed is 550-750r / min; the preparation method of the wollastonite slurry is: Add 3-5 parts of yttrium nitrate solution to 10-15 parts of chitosan solution, then add 2-4 parts of wollastonite and 1-2 parts of nano-silica sol, stir evenly, and finally add 1-2 parts of sodium dodecylbenzenesulfonate, continue stirring and mixing thoroughly to obtain wollastonite slurry.

2. The method for preparing a highly weather-resistant transfer paper according to claim 1, wherein: The mass fraction of the yttrium nitrate solution is 2-5%; the mass fraction of the chitosan solution is 4-8%.

3. The method for preparing a highly weather-resistant transfer paper according to claim 1, wherein: The preparation method of the flaky graphene agent is: The flaky graphene was first heat-treated at 110-120°C for 10-15 minutes, then cooled to 55°C at a rate of 2-4°C / min, immersed in a 10% by mass sodium lignin sulfonate solution for immersion treatment, and after the treatment, washed with water and dried to obtain a flaky graphene agent.

4. The method for preparing a highly weather-resistant transfer paper according to claim 3, wherein: The immersion pressure of the immersion treatment is 10-15 MPa, and the immersion time is 1-2 hours.

5. The method for preparing a highly weather-resistant transfer paper according to claim 1, wherein: The preparation method of the silane coupling agent conditioning agent is: S101: Stir and mix 3-5 parts of silane coupling agent, 1-2 parts of acetone and 4-6 parts of water; S102: Then, 1-2 parts of glycolic acid and 1-2 parts of hexadecyltrimethylammonium bromide are added thereto, and the mixture is stirred thoroughly to obtain a silane coupling agent.

6. The method for preparing a highly weather-resistant transfer paper according to claim 5, wherein: The silane coupling agent is silane coupling agent KH560.

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