CN115074019B

CN115074019B - Ceramic-imitated transmutation glaze layer and preparation method and application thereof

Info

Publication number: CN115074019B
Application number: CN202210506654.6A
Authority: CN
Inventors: 胡军; 余艳锋
Original assignee: Zhuhai Meizhu New Material Co ltd
Current assignee: Zhuhai Meizhu New Material Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2023-04-11
Anticipated expiration: 2042-05-10
Also published as: CN115074019A

Abstract

The invention belongs to the technical field of coatings, and discloses a ceramic imitation transmutation glaze layer and a preparation method and application thereof. The preparation method is characterized by comprising the following steps: spraying a primer on the base material, spraying a middle coating when the primer is not dried, spraying a finish when the middle coating is not dried, and baking to obtain the paint; the primer comprises a hydroxy acrylic acid secondary dispersion with the grain diameter of 180-280nm and the hydroxyl content of 0.8-2.0%; the intermediate coating comprises a hydroxy acrylic acid secondary dispersion with the particle size of 130-170nm and the hydroxyl content of 0.8-2.0%; the finish paint contains a hydroxy acrylic acid secondary dispersion with the particle size of 60-120nm and the hydroxyl content of 3.0-5.0%. The ceramic imitation kiln-changed glaze layer prepared by the method has high glossiness, is natural and beautiful, greatly improves the decorative effect, has high added value of the vessel prepared by the method, can realize industrial batch production, and has high yield.

Description

Ceramic-imitated transmutation glaze layer and preparation method and application thereof

Technical Field

The invention belongs to the technical field of coatings, and particularly relates to a ceramic-imitated transmutation glaze layer as well as a preparation method and application thereof.

Background

With the increasing awareness of environmental protection, the environmental protection requirements for the coating industry are also increasing, and as a transition product for changing oil property into water property, the water-soluble resin coating can not meet the increasingly strict environmental protection requirements gradually. At this time, the coating taking the water-based secondary dispersion as the main film-forming substance plays an important role, the problem of high VOC content originally used as a transition product is well solved, and most of the performances can be compared favorably with those of an oily product. Aqueous dispersion coatings often suffer from poor film fullness due to low solids content, which results in the inability to select aqueous coating products for certain demanding products.

In addition, people have raised environmental awareness and also put higher demands on the decoration of the coating. The glaze is a colorless or colored vitreous thin layer covered on the surface of the ceramic product, the color is rich, the aesthetic feeling is very rich, and the ceramic with the glaze layer is more and more popular with people. The transmutation is the surface effect similar to an artwork in the ceramic industry and is the key for forming the glaze. But in the ceramic industry, the furnace transmutation is difficult to be produced by batch firing, only by transportation gas, the yield of products is extremely low, repeatability is not high, and economic benefit is low. And the ceramic high-temperature furnace transmutation needs to be fired at the temperature of more than 800 ℃ to obtain the ceramic high-temperature furnace transmutation with high requirements on equipment and high energy consumption.

Therefore, it is highly desirable to provide a method for preparing a ceramic glaze imitation kiln change layer, which can prepare an appearance of a ceramic glaze with high temperature, does not need to be fired at high temperature, and can realize industrial mass production.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides a ceramic imitation transmutation glaze layer and a preparation method and application thereof. The preparation method of the ceramic imitation kiln-changed glaze layer can prepare the appearance of high-temperature ceramic glaze, does not need high-temperature firing, and can realize industrial batch production.

The invention provides a preparation method of a ceramic-imitated transmutation glaze layer in a first aspect.

Specifically, the preparation method of the ceramic-imitated transmutation glaze layer comprises the following steps:

spraying a primer on a substrate, spraying a primer paint when the primer paint is not dried, spraying a finish paint when the primer paint is not dried, and baking to obtain the paint; the primer comprises a hydroxy acrylic acid secondary dispersion with the particle size of 180-280nm and the hydroxyl content of 0.8-2.0%; the middle paint comprises a hydroxy acrylic acid secondary dispersion with the particle size of 130-170nm and the hydroxyl content of 0.8-2.0%; the finish paint contains a hydroxy acrylic acid secondary dispersion with the particle size of 60-120nm and the hydroxyl content of 3.0-5.0%.

The invention takes a hydroxyacrylic acid secondary dispersion with a coarse grain diameter (180-280 nm) and low hydroxyl content (0.8% -2.0%) as a main component as a primer, takes a hydroxyacrylic acid secondary dispersion with a medium grain diameter (130-170 nm) and low hydroxyl content (0.8% -2.0%) as a main component as a middle painting, takes a hydroxyacrylic acid secondary dispersion with a fine grain diameter (60-120 nm) and high hydroxyl content (3.0% -5.0%) as a finish paint, and carries out a three-spraying one-baking process to prepare the ceramic-like kiln glaze change layer by strictly controlling the grain diameter and the hydroxyl content of the hydroxyacrylic acid secondary dispersion in each layer and adopting a 'wet-on-wet process'. And the next layer is sprayed under the condition that each layer is not dried completely, because the coating is not dried completely, the grain diameter of the main component of the upper layer coating is smaller than that of the main component of the lower layer coating, the coatings are easy to mutually interlock and can keep a certain degree of natural color, the colors of the three layers are not completely fused, the phenomenon that the composite color is presented on the same surface is achieved through the matching of the colors, and the ceramic high-temperature transmutation effect can be presented through baking.

Note that the hydroxyl group content of the hydroxyacrylic secondary dispersion is calculated in a similar manner to the hydroxyl group content of the resin, and the hydroxyl group content of the hydroxyacrylic secondary dispersion = hydroxyl value of hydroxyacrylic secondary dispersion/33.

Preferably, the substrate is selected from at least one of glass, alloy or ceramic. Further preferably, the substrate is selected from glass. The glass has low preparation cost, is more beneficial to the formation of the ceramic imitation transmutation glaze layer, and the formed ceramic imitation transmutation glaze layer has good texture and is natural and beautiful. In addition, the ceramic-imitated furnace transmutation glaze layer is formed on the glass material by the method, and the glass product has the massive texture similar to that of ceramic, so that the problem in the glass packaging vessel industry is solved.

Preferably, the primer comprises a hydroxyacrylic secondary dispersion with a particle size of 180-250nm and a hydroxyl content of 0.8% -1.8%; the middle coating comprises a hydroxy acrylic acid secondary dispersion with the particle size of 130-160nm and the hydroxyl content of 0.8-1.8%; the finish paint contains a hydroxy acrylic acid secondary dispersion with the particle size of 80-120nm and the hydroxyl content of 3.0-5.0%.

Further preferably, the primer comprises a hydroxyacrylic secondary dispersion with a particle size of 180-220nm and a hydroxyl content of 0.8% -1.5%; the middle paint comprises a hydroxy acrylic acid secondary dispersion with the particle size of 130-160nm and the hydroxyl content of 0.8-1.5%; the finish paint contains a hydroxy acrylic acid secondary dispersion with the particle size of 80-120nm and the hydroxyl content of 3.5% -4.5%.

More preferably, the primer comprises a hydroxyacrylic secondary dispersion having a particle size of 190-210nm and a hydroxyl content of 1.0% -1.5%; the middle coating comprises a hydroxy acrylic acid secondary dispersion with the particle size of 140-160nm and the hydroxyl content of 1.0% -1.5%; the finish paint comprises a hydroxy acrylic acid secondary dispersion with the particle size of 90-110nm and the hydroxyl content of 3.8% -4.2%.

Preferably, the primer has a thickness of 10-20 μm.

Preferably, the thickness of the primer surfacer is 10 to 20 μm.

Preferably, the thickness of the finishing paint is 10-20 μm.

Preferably, the finish paint comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-15 parts of water-based amino resin, 0.1-2 parts of epoxy phosphate, 1-8 parts of water-based closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 5-30 parts of color paste and 1-30 parts of water.

Further preferably, the finish paint comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-10 parts of waterborne amino resin, 0.2-1 part of epoxy phosphate, 1-5 parts of waterborne closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 10-30 parts of color paste and 1-20 parts of water.

Preferably, in the finish, the auxiliary agent comprises at least one of a wetting agent, a pH adjuster, a film forming cosolvent, a silane coupling agent, or a rheological agent.

Further preferably, the auxiliary agent comprises 0.2-1 part of wetting agent, 0.2-1 part of pH value regulator, 0.1-3 parts of film-forming cosolvent, 1-3 parts of silane coupling agent and 0.1-1 part of rheological agent in parts by weight.

Preferably, the intermediate coating comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-15 parts of waterborne amino resin, 0.1-2 parts of epoxy phosphate, 1-8 parts of waterborne closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 5-30 parts of color paste and 5-30 parts of water.

Further preferably, the intermediate coating comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-10 parts of waterborne amino resin, 0.2-1 part of epoxy phosphate, 1-5 parts of waterborne closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 10-30 parts of color paste and 1-20 parts of water.

Preferably, in the intermediate coating material, the auxiliary agent comprises at least one of a wetting agent, a pH value regulator, a film-forming cosolvent, a silane coupling agent or a rheological agent.

Preferably, the primer comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-15 parts of waterborne amino resin, 0.1-2 parts of epoxy phosphate, 1-8 parts of waterborne closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 5-30 parts of color paste and 1-30 parts of water.

Further preferably, the primer comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-10 parts of water-based amino resin, 0.2-1 part of epoxy phosphate, 1-5 parts of water-based closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 10-30 parts of color paste and 1-20 parts of water.

Preferably, in the primer, the auxiliary agent comprises at least one of a wetting agent, a pH adjuster, a film forming co-solvent, a silane coupling agent, or a rheological agent.

Preferably, the color of the color paste is not completely the same in the top coat, the primer and the intermediate coat. It is understood here that the colour of the top coat, the base coat and the colour paste in the intermediate coat may be the same for both or different for all three. Further preferably, the colors of the finish paint, the primer paint and the color paste in the intermediate paint are different. The final coating can present colorful color effect through the collocation of different colors and the furnace transmutation effect.

Preferably, in the top coat, the primer and the primer coat, the wetting agent is a polyether modified silicone based compound having a low silicone content and a low surface tension. Such as TEGO 4100, TEGO 245, and the like.

Preferably, in the top coat, the primer and the primer surfacer, the amino resin is an aqueous partially methylated amino resin, such as cyanote CYMEL327.

Preferably, in the top coat, the primer and the primer, the pH adjuster is an organic ammonia-based pH adjuster.

Preferably, the ring opening temperature of the water-based isocyanate-blocked curing agent in the top coat, the primer and the primer coat is 100-120 ℃.

Preferably, in the top coat, the primer and the primer surfacer, the film-forming co-solvent is selected from alcohol esters 12 or/and dipropylene glycol butyl ether.

Preferably, in the top coat, the primer and the primer, the silane coupling agent is glycidoxypropyltrimethoxysilane.

Preferably, in the top coat, the primer and the primer surfacer, the rheological agent is a hydrophobically modified alkali-swellable thixotropic agent.

The preparation methods of the finish paint, the primer and the intermediate paint are as follows:

mixing the water, wetting agent, hydroxyl acrylic acid secondary dispersion and amino resin; then adding a pH value regulator to regulate the pH value to 7.5-9.0; and adding epoxy phosphate, a water-based isocyanate enclosed curing agent, a film-forming cosolvent and a silane coupling agent, mixing, and finally adding a rheological agent, and adjusting the viscosity to be 30-40 seconds per 4 cups of coating to obtain the coating.

Preferably, after the base material is sprayed with the primer, the base material is placed statically for 0.5 to 5min at the temperature of between 20 and 60 ℃; after painting in spraying, standing at 20-60 deg.C for 0.5-5min, and after spraying finish paint, standing at 20-60 deg.C for 0.5-5min.

Preferably, the baking temperature is 150-180 ℃, and the baking time is 5-30min; further preferably, the baking temperature is 160-170 ℃, and the baking time is 10-20min.

The invention provides a ceramic-imitated transmutation glaze layer in a second aspect.

The ceramic-imitated transmutation glaze layer is prepared by the preparation method.

In a third aspect of the invention, a vessel is provided.

Specifically, the ware comprises a substrate and the ceramic imitation transmutation glaze layer attached to the substrate.

Preferably, the material of the substrate is at least one selected from glass, alloy or ceramic.

Compared with the prior art, the invention has the following beneficial effects:

(1) The invention strictly controls the grain diameter and the hydroxyl content of the hydroxyl acrylic acid secondary dispersion in each layer and carries out a three-spraying one-baking process by a wet-on-wet process to prepare the ceramic imitation transmutation glaze layer. And spraying the next layer under the condition that each layer is not dried, so that the coatings are mutually occluded and keep the natural color to a certain degree, the formed composite color is presented on the same surface, and the ceramic imitation kiln-changed glaze layer is prepared by baking, and has high glossiness, natural and beautiful appearance and strong decoration.

(2) The ceramic-imitated transmutation glaze layer prepared by the method has the effect similar to that of an artwork, the decorative effect is greatly improved, the additional value of a vessel prepared by the ceramic-imitated transmutation glaze layer is high, industrial batch production can be realized, the rate of finished products is high, and the production benefit is improved.

Drawings

FIG. 1 is an external view of a glass bottle having a ceramic simulated fambe glaze layer obtained in example 4;

FIG. 2 is an external view of a glass bottle having a ceramic simulated fambe glaze layer obtained in example 8;

FIG. 3 is an external view of a coated glass bottle produced in comparative example 1;

FIG. 4 is an external view of a coated glass bottle produced in comparative example 2;

FIG. 5 is an external view of a coated glass bottle prepared in comparative example 3;

FIG. 6 is an external view of a coated glass bottle obtained in comparative example 4.

Detailed Description

In order to make the technical solutions of the present invention more clearly apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are not intended to limit the scope of the claimed invention.

The starting materials, reagents or apparatuses used in the following examples are conventionally commercially available or can be obtained by conventionally known methods, unless otherwise specified.

Examples 1 to 3

The components are weighed according to the component ratio in the table 1, and a primer, a finish and a middle paint are respectively prepared, wherein the primer is prepared in example 1, the middle paint is prepared in example 2, and the finish is prepared in example 3.

The preparation method of the primer, the finish and the intermediate coat comprises the following steps:

mixing deionized water, a wetting agent, a hydroxy acrylic acid secondary dispersion and a water-based amino tree, uniformly stirring, adding a pH value regulator in a stirring state, and regulating the pH value to 7.5-9.0; then adding epoxy phosphate, water-based isocyanate enclosed curing agent, film-forming assistant, color paste and silane coupling agent under stirring; then the rheological agent is stirred, and the viscosity is adjusted to be 30-40 seconds per 4 cups.

TABLE 1

Example 4

A preparation method of a ceramic-imitated transmutation glaze layer comprises the following steps:

a glass bottle having a ceramic simulating fambe glaze layer was prepared by spraying the primer of example 1 having a thickness of about 15 μm on a transparent glass bottle, standing at 25 ℃ for 2min, spraying the intercoat paint of example 2 having a thickness of about 15 μm when the primer was not dried, standing at 25 ℃ for 2min, spraying the topcoat paint of example 3 having a thickness of about 15 μm when the intercoat paint was not dried, and finally baking at 165 ℃ for 15min, and the appearance of the glass bottle was as shown in FIG. 1.

Examples 5 to 7

The components were weighed out in the component ratios in table 2 to prepare a primer, a topcoat and a midcoat paint, respectively, wherein the primer was prepared in example 5, the midcoat paint was prepared in example 6, and the topcoat was prepared in example 7.

mixing deionized water, a wetting agent, a hydroxy acrylic acid secondary dispersion and a water-based amino tree, uniformly stirring, adding a pH value regulator in a stirring state, and regulating the pH value to 7.5-9.0; then adding epoxy phosphate, water-based isocyanate enclosed curing agent, film-forming assistant, color paste and silane coupling agent under stirring; then the viscosity of the rheological agent is adjusted to 30-40 seconds per 4 cups of coating under the stirring state.

TABLE 2

Example 8

a glass bottle having a ceramic simulating fambe glaze layer was prepared by spraying the primer of example 5 having a thickness of about 15 μm on a transparent glass bottle, standing at 25 ℃ for 2min, spraying the intercoat paint of example 6 having a thickness of about 15 μm when the primer was not dried, standing at 25 ℃ for 2min, spraying the topcoat paint of example 7 having a thickness of about 15 μm when the intercoat paint was not dried, and finally baking at 165 ℃ for 15min, and the appearance of the glass bottle was as shown in FIG. 2.

Comparative example 1

A method of preparing a coating comprising the steps of:

a glass bottle having a coating was prepared by spraying the primer of example 1 having a thickness of about 15 μm on a transparent glass bottle, standing at 25 ℃ for 2 minutes, spraying the intercoat paint of example 2 having a thickness of about 15 μm when the primer was not dried, and then baking at 165 ℃ for 15 minutes, and the appearance of the glass bottle was as shown in FIG. 3.

Comparative example 2

A method of preparing a coating comprising the steps of:

the primer prepared in example 1 was sprayed on a transparent glass bottle to a thickness of about 15 μm, and then left to stand at 25 ℃ for 2min, and the top coat prepared in example 3 was sprayed to a thickness of about 15 μm until the primer was completely dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle having a coating, an external appearance of which is shown in FIG. 4.

Comparative example 3

A method of preparing a coating comprising the steps of:

the intercoat paint prepared in example 2 was sprayed on a transparent glass bottle to a thickness of about 15 μm, and then left to stand at 25 ℃ for 2min, and the topcoat paint prepared in example 3 was sprayed to a thickness of about 15 μm when the intercoat paint was not dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle having a coating, and an external appearance thereof is shown in fig. 5.

Comparative example 4

A method of preparing a coating comprising the steps of:

the intercoat paint prepared in example 2 was sprayed on a transparent glass bottle to a thickness of about 15 μm, and then left to stand at 25 ℃ for 2min, and when the intercoat paint was not dried, a layer of the intercoat paint prepared in example 2 was sprayed to a thickness of about 15 μm and a second layer of the intercoat paint was also dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle having a coating, an external appearance of which is shown in fig. 6.

Comparative example 5

A method of preparing a coating comprising the steps of:

the intermediate paint prepared in example 2 was sprayed on a transparent glass bottle to a thickness of about 15 μm, left to stand at 25 ℃ for 2min, the primer prepared in example 1 was sprayed to a thickness of about 15 μm when the intermediate paint was not dried, left to stand at 25 ℃ for 2min, the finish paint prepared in example 3 was sprayed to a thickness of about 15 μm when the primer was not dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle with a coating.

Comparative example 6

A method of preparing a coating comprising the steps of:

the intermediate coating prepared in example 2 was sprayed onto a transparent glass bottle to a thickness of about 15 μm, left to stand at 25 ℃ for 2min, the top coating prepared in example 3 was sprayed to a thickness of about 15 μm when the intermediate coating was not dried, left to stand at 25 ℃ for 2min, the primer prepared in example 1 was sprayed to a thickness of about 15 μm when the top coating was not dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle with a coating.

Comparative example 7

A method of preparing a coating comprising the steps of:

the primer prepared in example 1 was sprayed to a thickness of about 15 μm on a transparent glass bottle, left to stand at 25 ℃ for 2min, the top coat prepared in example 3 was sprayed to a thickness of about 15 μm when the primer was not dried, then left to stand at 25 ℃ for 2min, the intermediate coat prepared in example 2 was sprayed to a thickness of about 15 μm when the top coat was not dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle with a coating.

Comparative example 8

A method of preparing a coating comprising the steps of:

the top coat prepared in example 3 was sprayed on a transparent glass bottle to a thickness of about 15 μm, left to stand at 25 ℃ for 2min, the primer prepared in example 1 was sprayed to a thickness of about 15 μm when the top coat was not completely dried, then left to stand at 25 ℃ for 2min, the intercoat prepared in example 2 was sprayed to a thickness of about 15 μm when the primer was not completely dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle with a coating.

Comparative example 9

A method of preparing a coating comprising the steps of:

the top coat prepared in example 3 was sprayed on a transparent glass bottle to a thickness of about 15 μm, left to stand at 25 ℃ for 2min, the intermediate coat prepared in example 2 was sprayed to a thickness of about 15 μm when the top coat was not completely dried, left to stand at 25 ℃ for 2min, and the primer prepared in example 1 was sprayed to a thickness of about 15 μm when the intermediate coat was not completely dried, and finally baked at 165 ℃ for 15min to obtain a glass bottle with a coating.

It should be noted that the primer, the basecoat and the topcoat in the above comparative examples do not represent the actual position of the respective layers in the coating, but are named according to examples 1-3, wherein example 1 is prepared as the primer, example 2 is prepared as the basecoat and example 3 is prepared as the topcoat.

Product effectiveness testing

(2) The intercoat and topcoat prepared in examples 2 and 3 were sprayed onto glass to a thickness of about 15 μm, respectively, and tested together with the ceramic simulating transmutation glaze prepared in example 4 for fineness, hardness, adhesion, VOC content, gloss (60.), water resistance, alkali resistance, alcohol resistance, boiling resistance, artificial aging (QUVA), and the like. The test results are shown in table 3.

TABLE 3 coating Performance test

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As shown in Table 3, the ceramic imitation kiln glaze layer prepared by the preparation method provided by the invention also has good adhesion, hardness, gloss (60.), water resistance, alkali resistance, alcohol resistance, boiling resistance and artificial aging (QUVA) performances of a single-layer coating.

(2) The ceramic simulated famine glaze prepared in example 4 was tested for famine effect with the coatings prepared in comparative examples 1-9, including gloss (60.), distinctness of image (DOI value), paint film appearance, orange peel, and visual famine effect.

The orange peel is tested by a BYK4824 miniature orange peel instrument, wherein the corrugation with the length of more than 0.6mm is counted as long wave (lw), and the corrugation with the length of less than 0.5mm is counted as short wave (sw).

The test results are shown in fig. 4.

FIG. 4 transmutation Effect

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As can be seen from Table 4, the ceramic-imitated transmutation glaze layer prepared by the method can generate good transmutation and natural transmutation patterns, and is uniform in color occlusion, natural, attractive, smooth in surface, high in glossiness and good in distinctness of image. And the comparative examples 2 to 4 lack one layer, and still according to the principle that the inner layer paint is the hydroxyl acrylic acid secondary dispersion with large particle size and low hydroxyl content, and the outer layer paint is the hydroxyl acrylic acid secondary dispersion with small particle size and high hydroxyl content, the coating with smooth surface and higher glossiness can be basically formed, but the coating is the appearance of the conventional coating and cannot generate natural and beautiful transmutation effect. Comparative example 1 had a non-smooth surface because it contained only the primer and the middle coat paint. Comparative examples 5 to 9, although having a primer layer, a middle coat layer and a top coat layer, were not sprayed in the strict order of primer, middle coat and final top coat, were unable to produce a famine discoloration, all exhibited undercut bleeding (uneven color, dulling of the coating film surface), had an unsmooth surface, had low gloss, and even failed to achieve the appearance of conventional paint coatings.

The above examples 4 and 8 provide two examples of preparing a ceramic-imitated transmutation glaze layer, and actually, when the primer, the middle paint and the finish paint are respectively used for replacing color pastes with different colors, and the dosage of each component is within the protection range, the ceramic-imitated transmutation glaze layer can produce better transmutation effect and has the appearance of high-temperature transmutation ceramic.

Claims

1. The preparation method of the ceramic imitation transmutation glaze layer is characterized by comprising the following steps of:

spraying a primer on a substrate, spraying a primer coat when the primer is not dried, spraying a finish coat when the primer coat is not dried, and baking to obtain the paint; the primer comprises a hydroxy acrylic acid secondary dispersion with the particle size of 180-220nm and the hydroxyl content of 0.8-1.5%; the middle paint comprises a hydroxy acrylic acid secondary dispersion with the particle size of 130-160nm and the hydroxyl content of 0.8% -1.5%; the finish paint comprises a hydroxy acrylic acid secondary dispersion with the particle size of 80-120nm and the hydroxyl content of 3.5% -4.5%;

the finish paint comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-15 parts of waterborne amino resin, 0.1-2 parts of epoxy phosphate, 1-8 parts of waterborne closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 5-30 parts of color paste and 5-30 parts of water;

the middle paint comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-15 parts of waterborne amino resin, 0.1-2 parts of epoxy phosphate, 1-8 parts of waterborne closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 5-30 parts of color paste and 5-30 parts of water;

the primer comprises the following components in parts by weight: 40-85 parts of hydroxyl acrylic acid secondary dispersion, 5-15 parts of water-based amino resin, 0.1-2 parts of epoxy phosphate, 1-8 parts of water-based closed isocyanate curing agent, 0.5-10 parts of auxiliary agent, 5-30 parts of color paste and 5-30 parts of water.

2. The production method according to claim 1, wherein the primer has a thickness of 10 to 20 μm; the thickness of the intermediate paint is 10-20 mu m; the thickness of the finish paint is 10-20 μm.

3. The method according to claim 1, wherein the color paste is not completely the same in the top coat, the primer and the primer.

4. The method according to claim 3, wherein the color paste is different in color in the top coat, the primer and the primer.

5. The method for preparing the alloy material according to claim 1, wherein the baking temperature is 150-180 ℃ and the baking time is 5-30min.

6. A ceramic simulated transmutation glaze layer, characterized in that the ceramic simulated transmutation glaze layer is prepared by the preparation method of any one of claims 1 to 5.

7. A vessel comprising a substrate and the ceramic simulated transmutation glaze layer of claim 6 attached to the substrate; the material of the substrate is at least one selected from glass, alloy and ceramic.