A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface

Abstract

The invention discloses a deamination and grinding process for the surface of CMF integrated colored crystal glass, which belongs to the technical field of colored crystal glass preparation, and comprises the following steps: performing bottom sealing protection on the tin surface of the tempered glass; performing plasma treatment on the air surface of the tempered glass; degassing polyurethane ink, coating the deamination polyurethane ink on the air surface of the tempered glass and performing pre-crosslinking; deamination of the pre-crosslinked polyurethane ink layer by a pressing method or a vacuum method; performing embossing, secondary crosslinking and grinding on the air surface of the tempered glass in sequence to obtain a finished product, wherein the polyurethane ink comprises a first polyol and a second polyol, wherein the first polyol is a polyol having a diimidazole structure, and the second polyol is poly-ε-caprolactone diol; and the invention can directly form a pattern with a strong concave-convex feeling on the glass surface coating through a simple coating treatment and embossing process, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of colored crystal glass preparation, and in particular to a CMF-based deammoniation and polishing process for the surface of colored crystal glass. Background Art

[0002] CMF is an abbreviation of the first letters of the three English words Color, Material, and Finishing. It is a sub-field of industrial design. In product design, it focuses on the synergistic relationship between factors such as color, material, and process, and uses this to enhance the added value and emotional experience of the product. In current product design, CMF also includes a very important element, Pattern. These elements are an integral part of the overall product design. As an important type of CMF material, color crystal glass uses forward-looking color patterns, material texture, and molding technology as product design strategies to achieve a balance between product aesthetics, performance requirements, and low cost, making it more competitive in the market.

[0003] Today, the glass industry is constantly developing, and the glass coating production process is basically finalized on screen printing, such as the Chinese patent with publication number CN108640529A. However, there are few subsequent changes, the process form is relatively simple, the number of screen printing layers is large, and the production efficiency is relatively low. Summary of the invention

[0004] In view of the above problems, the present invention provides a deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface, comprising the following steps:

[0007] (1) The tin surface of the tempered glass is sealed with a bottom layer for protection. The sealing layer can be coated with a wear-resistant protective primer ink, which can be hardened after baking to form a protective layer;

[0008] (2) Plasma treatment is performed on the air surface of the tempered glass, generally using a plasma treatment device to activate the surface;

[0009] (3) degassing the polyurethane ink and then coating it on the air side of the tempered glass in step (2) and pre-crosslinking it, generally using a vacuum method or a centrifugal method for degassing;

[0010] (4) Deammoniation of the pre-crosslinked polyurethane ink layer by a pressing method or a vacuum method; the crosslinking of the polyurethane ink or its solvent may include some ammonia-containing substances, and deammoniation treatment can minimize the VOC emission of the product;

[0011] (5) embossing, secondary cross-linking and grinding the air surface of the tempered glass in sequence to obtain a finished product;

[0012] The polyurethane ink comprises a first polyol and a second polyol, and the preparation method of the first polyol comprises the following steps:

[0013] Weigh p-hydroxybenzaldehyde and stir and disperse it in a sodium hydroxide aqueous solution, stir and heat it to 70-80° C. under a protective atmosphere, add 2-chloro-1,3-propylene glycol, continue to stir and react for 10-14 hours, add an acid solution after cooling to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate and dissolve it in ethyl acetate, wash it with deionized water and saturated brine in sequence, dry it and evaporate the solvent to obtain product A; dissolve the product A in an acetic acid solution, add 4,4'-dihydroxydiphenylethanedione and ammonium acetate, stir and mix thoroughly, heat it to 80-90° C. and stir and react for 12-20 hours, add a sodium chloride aqueous solution to dilute the reaction system after the reaction is completed, add an alkaline solution to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate, wash it, and dry it to obtain product B; dissolve the product B in a dichloromethane solvent, add an alkaline potassium ferrocyanide solution drop by drop under stirring, continue to stir and react for 8-10 hours after the addition is completed, separate the upper organic layer after the reaction is completed, and evaporate the solvent under reduced pressure to obtain the first polyol;

[0014] The second polyol is poly-ε-caprolactone diol.

[0015] In some preferred embodiments, the polyurethane ink includes diisocyanate, the first polyol, the second polyol, an auxiliary agent and a solvent.

[0016] In some preferred embodiments, the auxiliary agent is one or more of a pigment, a rheological agent, a dispersant, a coupling agent, an antioxidant, and a waterproofing agent.

[0017] In some preferred embodiments, the solvent is dimethylformamide.

[0018] In some preferred embodiments, the mass ratio of the diisocyanate to the first polyol, the second polyol, and the auxiliary agent is 1:(3.7-4):(4-5):(0-1).

[0019] In some preferred embodiments, the diisocyanate is one or more of hexamethylene diisocyanate, isophorone diisocyanate, biphenyl diisocyanate, and paraphenylene diisocyanate.

[0020] In some preferred embodiments, the method for preparing the polyurethane ink comprises the following steps:

[0021] The first polyol is prepared for use; the first polyol, the second polyol and the diisocyanate are added to the solvent in sequence, stirred and heated to 70-80° C. to completely dissolve, the auxiliary agent is added, and the mixture is mixed again to obtain the product.

[0022] In some preferred embodiments, the cross-linking temperature of the pre-cross-linking in step (3) is 100-120° C., and the cross-linking time is 0.5-1 h.

[0023] In some preferred embodiments, the cross-linking temperature of the secondary cross-linking in step (5) is 160-180° C., and the cross-linking time is 0.5-3 h.

[0024] In some preferred embodiments, the mass ratio of the p-hydroxybenzaldehyde to the 2-chloro-1,3-propanediol is 1:(1.5-1.7); the mass ratio of the product A to the 4,4'-dihydroxydiphenylethanedione and the ammonium acetate is 1:(1.1-1.2):(3.1-3.4).

[0025] In some preferred embodiments, the number average molecular weight of the poly-ε-caprolactone diol is 400-4000.

[0026] The beneficial effects of the present invention are:

[0027] (1) The present invention can form a pattern with a strong sense of concave and convex on the glass surface through a simple coating treatment and embossing process, thereby obtaining a genuine leather appearance and surface touch like "thickened cowhide". Compared with the screen printing method that can only print one piece of glass at a time, the present invention can realize the coating of multiple pieces of glass at the same time through a roller coating and direct coating method. The method is simple to operate and quick to produce. It is a glass production process that is convenient for subsequent production and the derivation of various products. It can save manufacturing time and a lot of space for production, greatly reduce production costs, and improve production efficiency.

[0028] (2) The present invention obtains a coating material with good embossing performance by modifying the components of polyurethane ink and using two polyols with different structures as reaction components. Specifically, the present invention uses p-hydroxybenzaldehyde as a raw material, and forms an ether by condensing phenolic hydroxyl group with chloroalkanol and an imidazole structure by condensing aldehyde group with α and β diketone structure in 4,4'-dihydroxydiphenylethanedione. Finally, a polyol structure containing a diimidazole group is formed and introduced into the polyurethane resin chain by addition with diisocyanate. After pre-crosslinking, a polymerization product is formed. Under the combined action of hot pressing conditions of an embossing steel roller and ultraviolet rays, the diimidazole group is broken, thereby reducing the crosslinking degree of the resin, so that a pattern with a strong sense of concave and convex can be easily embossed on the coating. Then, a secondary crosslinking is performed under crosslinking conditions to obtain a pattern with clear and stable texture. Furthermore, the present invention also introduces a polycaprolactone segment into the polyurethane resin by adding polycaprolactone diol as a composite component to neutralize the hardness and elasticity of the crosslinked product, thereby improving the efficiency of skin grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0030] Figure 1 This is a finished product appearance diagram of the product described in Example 1 of the present invention. DETAILED DESCRIPTION

[0031] The present invention is further described in conjunction with the following examples.

[0032] Example 1

[0033] A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface, comprising the following steps:

[0034] (1) The tin surface of the tempered glass is sealed with a protective bottom layer, and the sealing bottom layer is coated with a wear-resistant protective primer ink. In this embodiment, a commercial polyurethane primer ink is used for sealing the bottom, and the protective layer is hardened after being baked at 180°C;

[0035] (2) Plasma treatment is performed on the air surface of the tempered glass. In this embodiment, a plasma treatment device is used to activate the surface.

[0036] (3) preparing the polyurethane ink, specifically, preparing a first polyol for standby use; sequentially adding the first polyol, the second polyol and the diisocyanate into a dimethylformamide solvent, stirring and heating to 70-80° C. to completely dissolve, adding an auxiliary agent, and mixing again to obtain the polyurethane ink;

[0037] Wherein, the preparation method of the first polyol comprises the following steps:

[0038] Weigh p-hydroxybenzaldehyde and disperse it in a 1.2 mol / L sodium hydroxide aqueous solution (dispersion ratio is 0.07 g / mL), stir and heat to 70-80°C under a protective atmosphere, add 2-chloro-1,3-propanediol, continue to stir and react for 12 hours, add 1 mol / L hydrochloric acid solution after cooling to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate and dissolve it in ethyl acetate, wash it with deionized water and saturated brine in turn, dry it and evaporate the solvent to obtain product A; dissolve the product A in a 1 mol / L acetic acid solution (dissolve The concentration is 0.045 g / mL), 4,4'-dihydroxydiphenylethanedione and ammonium acetate are added, the mixture is stirred thoroughly, the temperature is raised to 80-90°C, and the mixture is stirred and reacted for 16 hours. After the reaction is completed, a saturated sodium chloride aqueous solution is added to dilute the reaction system, a 1 mol / L sodium hydroxide solution is added to adjust the pH to neutral, the mixture is stirred thoroughly, the precipitate is separated, and the product B is obtained after washing and drying. The product B is dissolved in a dichloromethane solvent (the dissolution concentration is 0.025 g / mL), and a potassium hydroxide solution of potassium ferrocyanide (c(K 3 Fe(CN) 6 )=1mol / L, c(KOH)=2mol / L), after the dropwise addition is completed, the stirring reaction is continued for 8h, after the reaction is completed, the upper organic layer is separated, and the solvent is evaporated under reduced pressure to obtain the first polyol; the mass ratio of the p-hydroxybenzaldehyde to the 2-chloro-1,3-propanediol is 1:1.58, the mass ratio of the product A to the 4,4'-dihydroxydiphenylethanedione and the ammonium acetate is 1:1.14:3.28, and the mass ratio of the product B to the potassium ferrocyanide is 1:8;

[0039] The second polyol is poly-ε-caprolactone diol, and the number average molecular weight of the poly-ε-caprolactone diol is 2000;

[0040] The diisocyanate is a mixture of hexamethylene diisocyanate and isophorone diisocyanate in equal molar ratios;

[0041] The mass ratio of the diisocyanate to the first polyol and the second polyol is 1:3.86:4.6;

[0042] The additives may include conventional coating additives as required, such as pigments, rheological agents, dispersants, coupling agents, antioxidants, waterproofing agents, etc. To avoid the influence of the additives on the test comparison results of the coating properties, no additives are added in the examples and comparative examples of the present invention;

[0043] (4) after centrifugal degassing, the polyurethane ink is roller coated on the air side of the tempered glass in step (2) and pre-crosslinked, wherein the pre-crosslinking temperature is 110° C., the crosslinking time is 0.5 h, and the roller coating thickness is 0.1 mm;

[0044] (5) Deaminate the pre-crosslinked polyurethane ink layer using a pressing method or a vacuum method, such as dimethylformamide solvent;

[0045] (6) The air surface of the tempered glass is embossed, secondary cross-linked and ground in sequence to obtain a finished product. The embossed steel roller is heated by heat transfer oil at a temperature of 140-150° C. The secondary cross-linking temperature is 170° C. for a cross-linking time of 1.5 h. The grinding is performed by a grinding machine and 300-mesh sandpaper.

[0046] Comparative Example 1

[0047] A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface, comprising the following steps:

[0048] (1)-(5) are the same as in Example 1;

[0049] (6) The air surface of the tempered glass is embossed and ground in sequence to obtain a finished product. The embossed steel roller is heated by heat transfer oil at a temperature of 140-150° C. The grinding is performed by a grinding machine and 300-mesh sandpaper.

[0050] Comparative Example 2

[0051] A deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass, which is the same as Example 1, except that the second polyol is not contained.

[0052] Comparative Example 3

[0053] A deammoniation and skin resurfacing process based on a CMF integrated colored crystal glass surface is the same as that in Example 1, except that the first polyol and the second polyol are replaced by polyether polyols with equal hydroxyl values.

[0054] Comparative Example 4

[0055] A deamination and microdermabrasion process based on the surface of CMF integrated colored crystal glass, which is the same as Example 1, except that the preparation method of the first polyol comprises the following steps:

[0056] Weigh p-hydroxybenzaldehyde and disperse it in a 1.2 mol / L sodium hydroxide aqueous solution (dispersion ratio is 0.07 g / mL) with stirring, heat it to 70-80°C under a protective atmosphere, add 2-chloro-1,3-propanediol, continue to stir and react for 12 hours, cool it, add 1 mol / L hydrochloric acid solution to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate and dissolve it in ethyl acetate, wash it with deionized water and saturated brine in sequence, dry it and evaporate the solvent to obtain product A; dissolve the product A in a 1 mol / L acetic acid solution (dissolution concentration is 0.045 g / mL), add 4,4'-dihydroxydiphenylethylenedione and ammonium acetate, stir and mix thoroughly, heat it to 80-90°C and stir and react for 16 hours with stirring, add saturated sodium chloride aqueous solution to dilute the reaction system after the reaction is completed, add 1 mol / L sodium hydroxide solution to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate, wash and dry it to obtain product B; use product B as the first polyol.

[0057] Example 2

[0058] A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface, comprising the following steps:

[0059] (1) The tin surface of the tempered glass is sealed for protection, as in Example 1;

[0060] (2) Plasma treatment is performed on the air surface of the tempered glass, as in Example 1;

[0061] (3) preparing the polyurethane ink, specifically, preparing a first polyol for standby use; sequentially adding the first polyol, the second polyol and the diisocyanate into a dimethylformamide solvent, stirring and heating to 70-80° C. to completely dissolve, and mixing again to obtain the polyurethane ink;

[0062] Wherein, the preparation method of the first polyol comprises the following steps:

[0063] Weigh p-hydroxybenzaldehyde and disperse it in a 1.2 mol / L sodium hydroxide aqueous solution (dispersion ratio is 0.07 g / mL), stir and heat to 70-80°C under a protective atmosphere, add 2-chloro-1,3-propanediol, continue to stir and react for 10 hours, add 1 mol / L hydrochloric acid solution after cooling to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate and dissolve it in ethyl acetate, wash it with deionized water and saturated brine in turn, dry it and evaporate the solvent to obtain product A; dissolve the product A in a 1 mol / L acetic acid solution (dissolve The concentration is 0.045 g / mL), 4,4'-dihydroxydiphenylethanedione and ammonium acetate are added, the mixture is stirred thoroughly, the temperature is raised to 80-90°C, and the mixture is stirred and reacted for 12 hours. After the reaction is completed, a saturated sodium chloride aqueous solution is added to dilute the reaction system, a 1 mol / L sodium hydroxide solution is added to adjust the pH to neutral, the mixture is stirred thoroughly, the precipitate is separated, and the product B is obtained after washing and drying. The product B is dissolved in a dichloromethane solvent (the concentration is 0.025 g / mL), and a potassium hydroxide solution of potassium ferrocyanide (c(K 3 Fe(CN) 6 )=1mol / L, c(KOH)=2mol / L), after the dropwise addition is completed, the stirring reaction is continued for 8h, after the reaction is completed, the upper organic layer is separated, and the solvent is evaporated under reduced pressure to obtain the first polyol; the mass ratio of the p-hydroxybenzaldehyde to the 2-chloro-1,3-propanediol is 1:1.7, the mass ratio of the product A to the 4,4'-dihydroxydiphenylethanedione and the ammonium acetate is 1:1.2:3.1, and the mass ratio of the product B to the potassium ferrocyanide is 1:8;

[0064] The second polyol is poly-ε-caprolactone diol, and the number average molecular weight of the poly-ε-caprolactone diol is 400;

[0065] The diisocyanate is a mixture of hexamethylene diisocyanate and biphenyl diisocyanate in equal molar ratios;

[0066] The mass ratio of the diisocyanate to the first polyol and the second polyol is 1:3.7:4;

[0067] (4) after centrifugal degassing, the polyurethane ink is roller coated on the air side of the tempered glass in step (2) and pre-crosslinked, wherein the pre-crosslinking temperature is 100° C., the crosslinking time is 1 h, and the roller coating thickness is 0.1 mm;

[0068] (5) Deaminate the pre-crosslinked polyurethane ink layer using a pressing method or a vacuum method, such as dimethylformamide solvent;

[0069] (6) The air surface of the tempered glass is embossed, secondary cross-linked and ground in sequence to obtain a finished product. The embossed steel roller is heated by heat transfer oil at a temperature of 140-150° C. The cross-linking temperature of the secondary cross-linking is 160° C. and the cross-linking time is 3 hours. The grinding is performed by a grinding machine and 300-mesh sandpaper.

[0070] Example 3

[0071] A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface, comprising the following steps:

[0072] (1) The tin surface of the tempered glass is sealed for protection, as in Example 1;

[0073] (2) Plasma treatment is performed on the air surface of the tempered glass, as in Example 1;

[0074] (3) preparing the polyurethane ink, specifically, preparing a first polyol for standby use; sequentially adding the first polyol, the second polyol and the diisocyanate into a dimethylformamide solvent, stirring and heating to 70-80° C. to completely dissolve, and mixing again to obtain the polyurethane ink;

[0075] Wherein, the preparation method of the first polyol comprises the following steps:

[0076] Weigh p-hydroxybenzaldehyde and disperse it in a 1.2 mol / L sodium hydroxide aqueous solution (dispersion ratio is 0.07 g / mL), stir and heat to 70-80°C under a protective atmosphere, add 2-chloro-1,3-propanediol, continue to stir and react for 14 hours, add 1 mol / L hydrochloric acid solution after cooling to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate and dissolve it in ethyl acetate, wash it with deionized water and saturated brine in turn, dry it and evaporate the solvent to obtain product A; dissolve the product A in a 1 mol / L acetic acid solution (dissolve The concentration is 0.045 g / mL), 4,4'-dihydroxydiphenylethanedione and ammonium acetate are added, the mixture is stirred thoroughly, the temperature is raised to 80-90°C, and the mixture is stirred and reacted for 20 hours. After the reaction is completed, a saturated sodium chloride aqueous solution is added to dilute the reaction system, a 1 mol / L sodium hydroxide solution is added to adjust the pH to neutral, the mixture is stirred thoroughly, the precipitate is separated, and the product B is obtained after washing and drying. The product B is dissolved in a dichloromethane solvent (the dissolution concentration is 0.025 g / mL), and a potassium hydroxide solution of potassium ferrocyanide (c(K 3 Fe(CN) 6)=1mol / L, c(KOH)=2mol / L), after the dropwise addition is completed, the stirring reaction is continued for 10 hours, and after the reaction is completed, the upper organic layer is separated, and the solvent is evaporated under reduced pressure to obtain the first polyol; the mass ratio of the p-hydroxybenzaldehyde to the 2-chloro-1,3-propanediol is 1:1.5, the mass ratio of the product A to the 4,4'-dihydroxydiphenylethanedione and the ammonium acetate is 1:1.1:3.4, and the mass ratio of the product B to the potassium ferrocyanide is 1:8;

[0077] The second polyol is poly-ε-caprolactone diol, and the number average molecular weight of the poly-ε-caprolactone diol is 4000;

[0078] The diisocyanate is a mixture of hexamethylene diisocyanate and benzyl diisocyanate in equal molar ratios;

[0079] The mass ratio of the diisocyanate to the first polyol and the second polyol is 1:3.4:5;

[0080] (4) after centrifugal degassing, the polyurethane ink is roller coated on the air side of the tempered glass in step (2) and pre-crosslinked, wherein the pre-crosslinking temperature is 120° C., the crosslinking time is 0.5 h, and the roller coating thickness is 0.1 mm;

[0081] (5) Deaminate the pre-crosslinked polyurethane ink layer using a pressing method or a vacuum method, such as dimethylformamide solvent;

[0082] (6) The air surface of the tempered glass is embossed, secondary cross-linked and ground in sequence to obtain a finished product, the embossed steel roller is heated by heat transfer oil at a temperature of 140-150° C., the secondary cross-linking temperature is 180° C., the cross-linking time is 0.5 h, and the grinding is performed by a grinding machine and 300-mesh sandpaper.

[0083] Experimental example

[0084] The elastic and toughness properties of the polyurethane coatings prepared in Examples 1-3 and Comparative Examples 1-4 were measured, wherein the test of coating hardness was based on GB / T26704-2011; the test of impact resistance was based on GB / T1732-1993; the test of flexibility was based on GB / T1731-1993; the wear resistance was expressed as the wear per unit area per unit time under the conditions of a load of 750 g and a rotation speed of 500 r; the deformation recovery rate was expressed as the deformation recovery rate of the coating sample (ε 0 =100%) until the deformation ε m (150%), remove the heat pressing, UV conditions and external force conditions, the difference between the tensile deformation and the fixed deformation of the coating sample and the percentage of the tensile deformation are expressed, and the fixed deformation is the deformation ε under stress-free conditionsu and the initial deformation ε 0 The difference, that is, α (%) = (ε m -(ε u -ε 0 )) / ε m , the measurement results are shown in Table 1;

[0085] Table 1 Elastic and toughness test results of polyurethane coatings prepared in Examples 1-3 and Comparative Examples 1-4

[0086]

[0087] According to the test results of Examples 1-3, it can be seen that the coatings of Examples 1-3 of the present invention have excellent coating hardness, impact resistance and flexibility, and also have stable deformation fixation rate and good wear resistance, that is, the embossing elastic recovery under external force is small, the pattern is stable, and multiple glass coatings can be produced simultaneously; According to the test results of Example 1 and Comparative Example 1, it can be seen that the secondary cross-linking treatment of the present invention can improve the hardness and impact resistance of the coating, and the coating without secondary cross-linking treatment has poor wear resistance, and the elastic recovery after the external force is removed is almost completely recovered, and it is difficult to form a stable Embossed texture; According to the test results of Example 1 and Comparative Example 2, the addition of the second polyol of the present invention can improve the impact resistance and wear resistance of the coating and improve the efficiency of skin grinding; According to the test results of Example 1 and Comparative Example 3, the conventional polyether polyol cross-linked polyurethane coating has good performance in coating hardness and impact resistance, but the coating has poor wear resistance, and the elastic recovery after the external force is removed is almost completely recovered, and the embossed texture is difficult to form directly; According to the test results of Example 1 and Comparative Example 4, the prior formation of diimidazole groups can improve the wear resistance and impact resistance of the coating.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A deammoniation and microdermabrasion process based on CMF integrated colored crystal glass surface, characterized in that: The following steps are involved: (1) Protect the tin surface of the tempered glass by sealing the bottom; (2) performing plasma treatment on the air surface of the tempered glass; (3) degassing the polyurethane ink, coating it on the air side of the tempered glass in step (2) and performing pre-crosslinking; (4) Deammoniation of the pre-crosslinked polyurethane ink layer by a pressing method or a vacuum method; (5) embossing, secondary cross-linking and grinding the air surface of the tempered glass in sequence to obtain a finished product; The polyurethane ink comprises a first polyol and a second polyol, and the preparation method of the first polyol comprises the following steps: Weigh p-hydroxybenzaldehyde and stir and disperse it in a sodium hydroxide aqueous solution, stir and heat it to 70-80° C. under a protective atmosphere, add 2-chloro-1,3-propylene glycol, continue to stir and react for 10-14 hours, add an acid solution after cooling to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate and dissolve it in ethyl acetate, wash it with deionized water and saturated brine in sequence, dry it and evaporate the solvent to obtain product A; dissolve the product A in an acetic acid solution, add 4,4'-dihydroxydiphenylethanedione and ammonium acetate, stir and mix thoroughly, heat it to 80-90° C. and stir and react for 12-20 hours, add a sodium chloride aqueous solution to dilute the reaction system after the reaction is completed, add an alkaline solution to adjust the pH to neutral, stir and mix thoroughly, separate the precipitate, wash it, and dry it to obtain product B; dissolve the product B in a dichloromethane solvent, add an alkaline potassium ferrocyanide solution drop by drop under stirring, continue to stir and react for 8-10 hours after the addition is completed, separate the upper organic layer after the reaction is completed, and evaporate the solvent under reduced pressure to obtain the first polyol; The second polyol is poly-ε-caprolactone diol.

2. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 1, characterized in that: The polyurethane ink includes diisocyanate, the first polyol and the second polyol, an auxiliary agent and a solvent.

3. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 2, characterized in that: The auxiliary agent is one or more of pigments, rheological agents, dispersants, coupling agents, antioxidants, and waterproofing agents; and the solvent is dimethylformamide.

4. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 2, characterized in that: The mass ratio of the diisocyanate to the first polyol, the second polyol and the auxiliary agent is 1:(3.7-4):(4-5):(0-1).

5. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 2, characterized in that: The diisocyanate is one or more of hexamethylene diisocyanate, isophorone diisocyanate, biphenyl diisocyanate and paraphenylene diisocyanate.

6. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 2, characterized in that: The preparation method of the polyurethane ink comprises the following steps: The first polyol is prepared for use; the first polyol, the second polyol and the diisocyanate are added to the solvent in sequence, stirred and heated to 70-80° C. to completely dissolve, the auxiliary agent is added, and the mixture is mixed again to obtain the product.

7. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 1, characterized in that: The cross-linking temperature of the pre-cross-linking in step (3) is 100-120°C, and the cross-linking time is 0.5-1h.

8. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 1, characterized in that: The cross-linking temperature of the secondary cross-linking in step (5) is 160-180° C., and the cross-linking time is 0.5-3 h.

9. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 1, characterized in that: The mass ratio of the p-hydroxybenzaldehyde to the 2-chloro-1,3-propanediol is 1:(1.5-1.7); the mass ratio of the product A to the 4,4'-dihydroxydiphenylethanedione and the ammonium acetate is 1:(1.1-1.2):(3.1-3.4).

10. The deammoniation and microdermabrasion process based on the surface of CMF integrated colored crystal glass according to claim 1, characterized in that: The number average molecular weight of the poly-ε-caprolactone diol is 400-4000.

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