Gold glaze ink, gold-colored decorative ceramic rock plate and preparation method thereof

Abstract

The invention belongs to the technical field of building ceramics, and specifically relates to a gold glaze ink, a gold decorative ceramic rock plate and a preparation method thereof. The gold glaze ink contains 30-50wt% of gold glaze element; the raw material composition of the gold glaze element includes: by mass percentage, 10-40% titanium-barium frit, 5-30% zinc phosphate, 10-30% sodium feldspar, 10-15% aluminum phosphate, and 5-20% tin oxide; the chemical composition of the titanium-barium frit includes: by mass percentage, SiO2 8-14%, Al2O3 0.5-2%, Fe2O3 0.05-0.3%, CaO 3.0-7.0%, MgO 0.5-1.5%, K2O 0.15-0.3%, Na2O 0.5-1.5%, BaO 40-47%, ZnO 1-4%, B2O3 0.5-1.5%, and TiO2 30-36%. The present invention creatively synthesizes an inorganic gold glaze element and prepares a gold glaze ink containing the gold glaze element. By digitally printing the gold glaze ink, it is possible to prepare ceramic rock slabs with different gold-colored decorations on the basis of a gold base tone, which has a strong decorative effect.

Description

Technical Field

[0001] The invention belongs to the technical field of building ceramics, and specifically relates to a gold-colored glaze ink, a gold-colored decorative ceramic rock plate and a preparation method thereof. Background Art

[0002] At present, ceramic rock slabs have become one of the main materials for interior decoration. With the rapid development of digital decoration technology, the texture of simulated stone rock slab products has become more and more refined, and the demand for surface decoration effects of ceramic rock slabs has become more and more diversified. Golden decorative ceramic rock slabs have a metallic texture and can give people a feeling of brightness, joy and stability. Therefore, in recent years, golden decorative effect ceramic tile products have been favored by consumers.

[0003] Existing gold-colored decorative ceramic products are mainly prepared by screen printing gold paste combined with secondary low-temperature firing. The price of screen printing gold paste is expensive and the production cost is high. Some ceramic companies have also proposed to use electroplating technology to prepare gold-colored decorative ceramic products. However, the electroplating process will cause environmental pollution. Moreover, these two preparation processes are complicated and cumbersome to operate, making it difficult to achieve mass production.

[0004] In addition, when using metal glaze to decorate ceramic tiles, architectural ceramic companies usually need to use screen or roller technology to apply a large amount of metal glaze in order to make the metal decoration effect prominent. However, this will lead to technical defects such as thick metal glaze layer, difficult to control color, and single color design. Summary of the invention

[0005] In view of the above problems, the present invention aims to provide a gold glaze ink, a gold-decorated ceramic rock plate and a preparation method thereof. The present invention creatively synthesizes an inorganic gold glaze element and prepares a gold glaze ink containing the gold glaze element. By digitally printing the gold glaze ink, it is possible to prepare ceramic rock plates decorated with different gold colors (such as red gold, platinum gold, and blue gold) on the basis of a gold tone, which has a strong decorative effect. At present, the present invention has successfully realized gold decoration on antique brick rock plate products, which can save precious metal resources and realize the low cost and mass production of gold decoration production lines.

[0006] In the first aspect, the present invention provides a gold glaze ink. The gold glaze ink contains 30-50wt% of gold glaze element; the raw material composition of the gold glaze element includes: by mass percentage, 10-40% titanium-barium frit, 5-30% zinc phosphate, 10-30% sodium feldspar, 10-15% aluminum phosphate, and 5-20% tin oxide; the chemical composition of the titanium-barium frit includes: by mass percentage, SiO28-14%, Al2O30.5-2%, Fe2O30.05-0.3%, CaO 3.0-7.0%, MgO 0.5-1.5%, K2O 0.15-0.3%, Na2O 0.5-1.5%, BaO 40-47%, ZnO 1-4%, B2O30.5-1.5%, and TiO230-36%.

[0007] Preferably, the mineral composition of the titanium-barium frit includes, by mass percentage, 2-4% washed kaolin, 35-45% barium carbonate, 3-5% borax, 1-3% potassium carbonate, 2-4% zinc oxide, 5-10% quartz, 24-30% titanium dioxide, and 5-8% limestone.

[0008] Preferably, the raw material composition of the gold glaze ink includes: in mass percentage, 30-50% gold glaze element, 15-30% solvent white oil, 15-22% ester solvent, 3-8% super dispersant, 0.3-0.6% leveling agent, 0.3-0.6% quick-drying agent, and 0.2-0.6% defoaming agent.

[0009] Preferably, the ester solvent is selected from one or more of isooctyl palmitate, methyl laurate, isopropyl laurate and isooctyl laurate.

[0010] Preferably, the preparation method of the gold glaze ink includes: weighing each raw material according to the raw material composition of the gold glaze, sintering after evenly mixing them, and crushing to obtain the gold glaze; mixing the gold glaze with solvent white oil, ester solvent, super dispersant, leveling agent, quick drying agent, and defoaming agent, and filtering to obtain the gold glaze ink.

[0011] Preferably, the sintering temperature is 1150-1200° C., and the sintering time is 2-4 hours.

[0012] In the second aspect, the present invention provides a method for preparing a gold-colored decorative ceramic rock plate. The preparation method comprises the following steps: applying a glaze on the surface of a brick blank; inkjet printing a common ink pattern on the surface of the brick blank after the glaze is applied; applying a transparent protective glaze on the surface of the brick blank after the common ink pattern is inkjet printed; inkjet printing the gold-colored glaze ink on the surface of the brick blank after the transparent protective glaze is applied; firing the brick blank after the gold-colored glaze ink is applied to obtain the gold-colored decorative ceramic rock plate; or the preparation method comprises the following steps: applying a glaze on the surface of a brick blank; inkjet printing a common ink pattern on the surface of the brick blank after the glaze is applied; applying a transparent protective glaze on the surface of the brick blank after the common ink pattern is inkjet printed; inkjet printing a mixed ink of commercial digital color ink and the gold-colored glaze ink on the surface of the brick blank after the transparent protective glaze is applied; firing the brick blank after the mixed ink is applied to obtain the gold-colored decorative ceramic rock plate.

[0013] Preferably, at least two channels are used to inkjet print the gold glaze ink or the mixed ink, and the grayscale of each channel is at least 40%.

[0014] Preferably, the chemical composition of the glaze includes, by mass percentage, loss on ignition 1~5%, SiO2 54~56%, Al2O3 23~26%, Fe2O3 0.1~0.6%, TiO2 0.01~0.1%, CaO 0.5~1.5%, MgO 0.5~1%, K2O 3~6%, Na2O 2~4%, and ZrO2 4.5~6.5%.

[0015] Preferably, the glaze is applied by pouring glaze; the specific gravity of the glaze is 1.85-1.90 g / cm 3 , application amount is 500~600g / m 2 .

[0016] Preferably, the chemical composition of the transparent protective glaze includes, in mass percentage, loss on ignition 0.5~2%, SiO2 56~60%, Al2O3 11~15%, Fe2O3 0.1~0.3%, TiO2 0.01~0.1%, CaO 1~3%, MgO 1~3%, K2O 4~6%, Na2O 2~4%, ZnO 1.5~2.5%, BaO 0.5~2.5%, and SrO 4~8%.

[0017] Preferably, the transparent protective glaze is applied by spraying; the specific gravity of the transparent protective glaze is 1.4-1.5 g / cm 3 , application amount is 550~700g / m 2 .

[0018] Preferably, the sintering temperature is 1160-1210° C., and the sintering time is 50-110 minutes.

[0019] In a third aspect, the present invention provides a gold-colored decorative ceramic rock plate, which is obtained according to the preparation method of the gold-colored decorative ceramic rock plate.

[0020] Beneficial Effects

[0021] The present invention creatively synthesizes an inorganic gold glaze element, and uses the gold glaze element to prepare gold glaze ink, so as to achieve the artistic effect of different gold color decorations, better control the gold color change of the ink, and effectively achieve the decorative effect of the metal color. The present invention also uses the ceramic inkjet printing technology to inkjet print the gold glaze ink on the surface of the transparent protective glaze to prepare the gold color decorative ceramic rock plate. The preparation method of the present invention overcomes the problems of low efficiency and high cost existing in the existing processes such as printing gold paste, gold plating, and silver plating, and can realize the preparation of gold color decorative ceramic rock plates with good repeatability, simple operation, and green pollution-free. Moreover, compared with the existing methods, the preparation method of the present invention has the advantages of less ink printing, good stability, digital digitization, and diversified effects. It can combine the precise positioning characteristics of digital technology to accurately realize the design and decoration of any pattern such as points, lines, and surfaces, and at the same time combine the existing color ceramic ink decoration technology to realize the diversification of the decorative art effects of antique bricks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a brick surface effect diagram of the gold-colored decorative ceramic rock slab prepared in Example 1;

[0023] Figure 2 This is a brick surface effect diagram of the gold-colored decorative ceramic rock slab prepared in Example 2;

[0024] Figure 3 This is a brick surface effect diagram of the gold-colored decorative ceramic rock slab prepared in comparative example 1;

[0025] Figure 4 This is a brick surface rendering of the gold-colored decorative ceramic rock slab prepared in Example 2. DETAILED DESCRIPTION

[0026] The present invention is further described below through embodiments. It should be understood that the following embodiments are only used to illustrate the present invention, but not to limit the present invention. Unless otherwise specified, each percentage refers to the percentage by mass. The following is an exemplary description of the gold glaze ink, gold-colored decorative ceramic rock plate and preparation method thereof according to the present invention.

[0027] Prepare a brick blank. The chemical composition of the brick blank is not limited. Conventional antique brick blanks in the art can be used. For example, the chemical composition of the brick blank includes: in terms of mass percentage, loss on ignition: 4.0-6.0%, SiO2: 60-70%, Al2O3: 19-25%, Fe2O3: 0.5-1.5%, TiO2: 0.2-0.5%, CaO: 0.2-0.8%, MgO: 0.3-0.8%, K2O: 2.0-4.0%, Na2O: 1.5-3.5%.

[0028] Applying glaze on the surface of the brick can cover the defects of the brick and promote the color development of the inkjet pattern.

[0029] In some embodiments, the chemical composition of the glaze includes, by mass percentage, loss on ignition 1~5%, SiO2 54~56%, Al2O3 23~26%, Fe2O3 0.1~0.6%, TiO2 0.01~0.1%, CaO 0.5~1.5%, MgO 0.5~1%, K2O 3~6%, Na2O 2~4%, and ZrO2 4.5~6.5%.

[0030] For example, the mineral composition of the glaze includes, by mass percentage, 3-10% washed kaolin, 15-20% albite, 35-45% potassium feldspar, 10-15% quartz, 10-20% burnt clay, 6-10% zirconium silicate, and 1-5% wollastonite.

[0031] Prepare glaze slurry. As an example, the raw material composition of the glaze slurry includes: 100 grams of glaze mineral composition, 35-40 grams of water, 0.4 grams of sodium tripolyphosphate, and 0.15-0.2 grams of sodium carboxymethyl cellulose. Weigh the raw materials according to the raw material composition of the glaze slurry, mix them evenly by ball milling, and sieve to obtain the glaze slurry. The ball milling time can be 10-30 minutes. The fineness of the glaze slurry can be less than 1wt% after passing through a 325-mesh sieve. When applying the glaze, water can be further added to adjust the specific gravity of the glaze slurry to obtain the final desired specific gravity of the glaze.

[0032] The glaze can be applied by pouring glaze. Preferably, the specific gravity of the glaze is 1.85-1.90 g / cm 3 , application amount is 500~600g / m 2 .

[0033] The conventional color ink pattern is inkjet printed on the surface of the brick after the glaze is applied. The color and texture of the conventional color ink pattern printed by inkjet can be changed as needed. Conventional color inks include yellow, brown, blue, wrapped red, black and other commonly used ceramic inks for architectural ceramics.

[0034] A transparent protective glaze is applied to the surface of the brick after inkjet printing of conventional color ink patterns.

[0035] In some embodiments, the chemical composition of the transparent protective glaze includes, by mass percentage, loss on ignition 0.5~2%, SiO2 56~60%, Al2O3 11~15%, Fe2O3 0.1~0.3%, TiO2 0.01~0.1%, CaO 1~3%, MgO 1~3%, K2O 4~6%, Na2O 2~4%, ZnO 1.5~2.5%, BaO 0.5~2.5%, and SrO 4~8%.

[0036] For example, the mineral composition of the transparent protective glaze includes, by mass percentage, 7-15% washed kaolin, 15-20% albite, 25-35% potassium feldspar, 0.1-5% strontium carbonate, 8-14% quartz, 1-3% zinc oxide, 5-15% burnt clay, and 5-10% calcite.

[0037] The transparent protective glaze can be applied by spraying. Preferably, the specific gravity of the transparent protective glaze is 1.4-1.5 g / cm 3 , application amount is 550~700g / m 2 If too much transparent protective glaze is applied, the metallic color of the gold glaze ink will be reduced; if too little transparent protective glaze is applied, the gold glaze ink effect can be better presented, but the glaze surface has more pores and the anti-fouling performance becomes worse.

[0038] Prepare gold glaze ink. The gold glaze ink includes 30-50wt% of gold glaze element. The raw material composition of the gold glaze element includes: in terms of mass percentage, 10-40% of titanium barium frit, 5-30% of zinc phosphate, 10-30% of albite, 10-15% of aluminum phosphate, and 5-20% of tin oxide.

[0039] The chemical composition of the titanium-barium frit includes, by mass percentage, 8-14% SiO2, 0.5-2% Al2O3, 0.05-0.3% Fe2O3, 3.0-7.0% CaO, 0.5-1.5% MgO, 0.15-0.3% K2O, 0.5-1.5% Na2O, 40-47% BaO, 1-4% ZnO, 0.5-1.5% B2O3, and 30-36% TiO2.

[0040] In some embodiments, the mineral composition of the titanium-barium frit includes: by mass percentage, 2-4% washed kaolin, 35-45% barium carbonate, 3-5% borax, 1-3% potassium carbonate, 2-4% zinc oxide, 5-10% quartz, 24-30% titanium dioxide, and 5-8% limestone. The raw materials are weighed according to the mineral composition of the titanium-barium frit, mixed evenly, melted at 1450°C-1550°C for 2-4 hours to obtain glass liquid, and the glass liquid is quenched with water and crushed to obtain the titanium-barium frit.

[0041] The inventors have also tried to use direct titanium oxide and / or barium oxide. However, it was found that in the process of directly using titanium oxide and barium oxide as single materials to prepare gold glaze ink, the high temperature chemical reaction activation energy required is relatively high, and under the existing rapid firing system of ceramic tiles, the gold glaze ink only shows yellow, without the shiny metallic color formed by crystal precipitation.

[0042] The raw materials of the gold enamel are mixed and sintered, and then crushed to obtain the gold enamel. The sintering temperature can be 1150-1200°C, and the sintering time can be 2-4 hours. The heating rate can be 2-10°C / minute, preferably 5°C / minute. The raw materials of the gold enamel can undergo sufficient chemical reaction through sintering, thereby obtaining the gold enamel of the composite silicate system.

[0043] In some embodiments, the raw material composition of the gold enamel further includes a colorant. The colorant includes but is not limited to cobalt blue pigment, etc. The introduction of the colorant can adjust the color tone of the gold decoration. The content of the colorant can be 1-10wt% of the total mass of other raw material compositions of the gold enamel except the colorant.

[0044] In some embodiments, the raw material composition of the gold glaze ink includes: in mass percentage, 30~50% gold glaze element, 15~30% solvent white oil, 15~22% ester solvent, 3~8% super dispersant, 0.3~0.6% leveling agent, 0.3~0.6% quick drying agent, and 0.2~0.6% defoaming agent.

[0045] The solvent white oil can be 3# white mineral oil and / or 10# white oil. The ester solvent is selected from one or more of isooctyl palmitate, methyl laurate, isopropyl laurate, and isooctyl laurate. Hyperdispersant, leveling agent, quick-drying agent, and defoamer are all commonly used additives in the art and can be purchased commercially. In a specific embodiment, the hyperdispersant is HP3100 and the defoamer is BYK067.

[0046] The gold glaze ink is obtained by mixing the gold glaze element with solvent white oil, ester solvent, super dispersant, leveling agent, quick drying agent and defoaming agent, sand grinding and filtering.

[0047] As an example, the gold glaze ink is prepared according to the following steps:

[0048] a. Prepare industrial-grade gold glaze raw materials. Mix the raw materials by ball milling, and control the residue on the 325-mesh sieve to less than 2wt%, and mark this material as material A.

[0049] b. Synthesize gold enamel: sinter material A at 1150~1200℃ for 2~4 hours at a heating rate of 5℃ / min in an oxidizing atmosphere to allow the raw material powder to undergo sufficient chemical reaction to obtain a composite silicate system gold enamel. The particle size of the gold enamel is preferably controlled at D 90 <8μm. It can be crushed by mechanical crushing, air flow crushing and other methods. The crushed gold glaze powder is marked as material B.

[0050] c. Preparation of gold glaze ink: Mix material B, solvent white oil, ester solvent (isooctyl palmitate and / or isopropyl laurate), super dispersant, leveling agent, quick-drying agent, and defoaming agent evenly, and grind them in a sand mill to control the particle size D. 90 <1μm, to obtain gold glaze ink with consistent stability.

[0051] An appropriate amount of solvent can be added to the gold glaze ink to adjust the performance parameters of the ink. Preferably, the solid content of the gold glaze ink is 20-40wt%. The viscosity of the gold glaze ink at 40°C can be 10-18 mPa·s, the surface tension is controlled to be 25-40 mN / m, and the density is 1.0-1.7 g / cm 3 The prepared gold glaze ink is filtered through a multi-stage 1 μm filter element and then packaged.

[0052] After applying the transparent protective glaze, the gold glaze ink is applied on the surface of the brick in combination with the inkjet pattern. The gold glaze ink can be digitally printed using the Starlight 1024HF printhead or the Xaar GS40 printhead.

[0053] Please note that the present invention must place the gold glaze ink after the process of applying the transparent protective glaze. If the gold glaze ink layer is placed between the top glaze layer and the transparent protective glaze layer, the gold glaze ink will react with the top glaze and the transparent protective glaze, further causing the gold glaze ink to lose its gold decorative effect.

[0054] The gold color decorative effect of different depths can be prepared by superimposing different ink amounts. The gold color glaze ink can be printed by single-channel, dual-channel or multi-channel inkjet printing. Preferably, at least two channels are used for printing, and the printing grayscale of each channel is at least 40%. For example, the application amount of the gold color glaze ink is 80-120 pL.

[0055] As an alternative embodiment, a mixture of commercial digital color ink (ordinary color ink) and gold glaze ink can be applied on the surface of the tile after the transparent protective glaze is applied in combination with an inkjet pattern. As an example, the amount of commercial digital yellow ink is 1-10wt% (e.g., 5wt%) of the gold glaze ink. Commercial digital color inks include, but are not limited to, commercial digital red ink, commercial digital yellow ink, etc.

[0056] The sintering temperature may be 1160-1210° C., and the sintering time may be 50-100 minutes.

[0057] In summary, the present invention creatively synthesizes inorganic gold glaze elements, realizes the preparation of gold-colored decorative ceramic rock plates through one-time firing based on the antique brick process, and avoids the cumbersome operation of secondary printing of gold paste. Moreover, the present invention forms gold-colored decoration by inkjet printing of gold-colored glaze ink, which can greatly reduce the use of metal glaze ink, realize digital decoration technology at will, and facilitate the flexible matching of design processes.

[0058] The following examples are further listed to illustrate the present invention in detail. It should also be understood that the following examples are only used to further illustrate the present invention and cannot be construed as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention belong to the scope of protection of the present invention. The specific process parameters and the like in the following examples are also only examples within a suitable range, that is, those skilled in the art can make a selection within a suitable range through the description herein, and are not limited to the specific values ​​​​exemplified below.

[0059] Example 1

[0060] The preparation method of the gold-colored decorative ceramic rock plate comprises the following steps:

[0061] Step 1. Apply glaze on the surface of the brick. The chemical composition of the glaze includes: by mass percentage, ignition loss 4%, SiO2 56%, Al2O3 24%, Fe2O3 0.5%, TiO2 0.1%, CaO 1.3%, MgO 0.6%, K2O 5%, Na2O 3%, ZrO2 5.5%. The glaze is applied by pouring. The specific gravity of the glaze is 1.87g / cm 3 , application amount is 525g / m 2 .

[0062] Step 2. Inkjet print a normal ink pattern on the surface of the tile after the top glaze is applied.

[0063] Step 3. Apply a transparent protective glaze on the surface of the brick after the ordinary ink pattern is inkjet printed. The chemical composition of the transparent protective glaze includes: in terms of mass percentage, ignition loss 1%, SiO2 60%, Al2O3 15%, Fe2O3 0.2%, TiO2 0.1%, CaO 3%, MgO 3%, K2O 5%, Na2O 3%, ZnO 2.5%, BaO 2.2%, SrO 5%. The transparent protective glaze is applied by spraying. The specific gravity of the transparent protective glaze is 1.4g / cm 3 , application amount is 600g / m 2 .

[0064] Step 4. Apply gold glaze ink to the surface of the brick blank after applying the transparent protective glaze according to the inkjet pattern. The raw material composition of the gold glaze ink is shown in Table 1. The raw material composition of the gold glaze element includes: by mass percentage, 38% titanium barium frit, 22% zinc phosphate, 20% sodium feldspar, 10% aluminum phosphate, and 10% tin oxide. The chemical composition of the titanium barium frit includes: by mass percentage, SiO211.7%, Al2O31%, Fe2O30.1%, CaO 5%, MgO 1%, K2O 0.2%, Na2O 1%, BaO 43%, ZnO 2%, B2O31%, TiO234%. Use dual-channel inkjet to print the gold glaze ink. The grayscale of each channel is 45%.

[0065] Step 5. Firing the bricks with the gold glaze ink to obtain gold-decorated ceramic rock panels. The firing temperature is 1170° C. and the firing time is 80 minutes.

[0066] Table 1 Raw material composition of gold glaze ink

[0067]

[0068] Figure 1 This is a brick surface effect diagram of the gold-colored decorative ceramic rock board prepared in Example 1. It can be seen that the decorative pattern of the gold-colored decorative ceramic rock board presents a golden hue.

[0069] Example 2

[0070] It is basically the same as Example 1, except that:

[0071] Step 4. Apply a mixture of gold glaze ink and commercial digital red ink on the surface of the brick after applying the transparent protective glaze according to the inkjet pattern. The amount of commercial digital red ink is 5wt% of the gold glaze ink. The raw material composition of the gold glaze ink is the same as Table 1. The raw material composition of the gold glaze element includes: in terms of mass percentage, 39% titanium barium frit, 13% zinc phosphate, 25% sodium feldspar, 15% aluminum phosphate, and 8% tin oxide.

[0072] Figure 2 This is a brick surface effect diagram of the gold-colored decorative ceramic rock board prepared in Example 2. It can be seen that the decorative pattern of the gold-colored decorative ceramic rock board presents a golden red tone.

[0073] Example 3

[0074] It is basically the same as Example 1, except that the raw material composition of the gold glaze ink is the same as Table 1. The raw material composition of the gold glaze includes a basic glaze and a cobalt blue pigment. The raw material composition of the basic glaze includes: in terms of mass percentage, 40% titanium barium frit, 13% zinc phosphate, 28% sodium feldspar, 11.5% aluminum phosphate, and 7.5% tin oxide. The content of the cobalt blue pigment is 8wt% of the basic glaze. According to the brick surface effect diagram of this embodiment, it can be seen that the decorative pattern of the gold-colored decorative ceramic rock plate presents a golden blue tone.

[0075] The product performance of the gold glaze ink prepared in Examples 1 to 3 was compared with that of conventional digital ink. The ink was placed in an oven at 60° C. for 20 days, and the storage stability of the ink was determined by whether obvious precipitation was generated.

[0076] Table 2 Performance comparison between gold glaze ink and conventional digital ink

[0077]

[0078] It can be seen from Table 2 that the gold glaze ink prepared by the present invention meets the printing standard of digital ink.

[0079] Comparative Example 1

[0080] It is basically the same as Example 1, the only difference is: the process sequence of applying the transparent protective glaze and inkjet printing the gold glaze ink is exchanged.

[0081] Figure 3 This is a brick surface effect diagram of the gold-colored decorative ceramic rock plate prepared in Example 1. It can be seen that since the gold-colored glaze ink layer is arranged between the surface glaze layer and the transparent protective glaze layer, the gold-colored glaze ink reacts with the surface glaze and the transparent protective glaze, causing the gold-colored glaze ink to lose its gold-colored decorative effect.

[0082] Comparative Example 2

[0083] The method is basically the same as Example 1, except that the raw materials of the gold enamel include, by mass percentage, 38% high zinc frit, 22% zinc phosphate, 20% albite, 10% aluminum phosphate, and 10% tin oxide. The chemical composition of the high zinc frit includes, by mass percentage, 11.7% SiO2, 31% Al2O, 0.1% Fe2O3, 7% CaO, 1% MgO, 0.2% K2O, 1% Na2O, 42% BaO, 35% ZnO, and 31% B2O.

[0084] Figure 4 This is a brick surface effect picture of the gold-colored decorative ceramic rock plate prepared in comparative example 2. It can be seen that the gold-colored glaze ink prepared using high-zinc frit only achieves a bright decorative effect and lacks a metallic texture. This is because the high-zinc frit in the gold-colored glaze reacts with the transparent protective glaze to form a transparent glass layer, which has a bright effect but no metallic texture.

[0085] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A gold glaze ink, characterized in that: The gold glaze ink contains 30-50wt% of gold glaze element; The raw material composition of the gold glaze includes, by mass percentage, 10-40% titanium-barium frit, 5-30% zinc phosphate, 10-30% albite, 10-15% aluminum phosphate, and 5-20% tin oxide; the chemical composition of the titanium-barium frit includes, by mass percentage, 8-14% SiO2, 0.5-2% Al2O3, 0.05-0.3% Fe2O3, 3.0-7.0% CaO, 0.5-1.5% MgO, 0.15-0.3% K2O, 0.5-1.5% Na2O, 40-47% BaO, 1-4% ZnO, 0.5-1.5% B2O3, and 30-36% TiO2.

2. The gold glaze ink according to claim 1, characterized in that: The mineral composition of the titanium-barium frit includes, by mass percentage, 2-4% washed kaolin, 35-45% barium carbonate, 3-5% borax, 1-3% potassium carbonate, 2-4% zinc oxide, 5-10% quartz, 24-30% titanium dioxide, and 5-8% limestone.

3. The gold glaze ink according to claim 1, characterized in that: The raw material composition of the gold glaze ink includes, by mass percentage, 30-50% gold glaze element, 15-30% solvent white oil, 15-22% ester solvent, 3-8% super dispersant, 0.3-0.6% leveling agent, 0.3-0.6% quick-drying agent, and 0.2-0.6% defoaming agent.

4. The gold glaze ink according to any one of claims 1 to 3, characterized in that: The preparation method of the gold glaze ink comprises: weighing various raw materials according to the raw material composition of the gold glaze, sintering after evenly mixing them, and obtaining the gold glaze by crushing; mixing the gold glaze with solvent white oil, ester solvent, super dispersant, leveling agent, quick drying agent, and defoaming agent evenly, and filtering to obtain the gold glaze ink.

5. A method for preparing a gold-colored decorative ceramic rock plate, characterized in that: The preparation method comprises the following steps: applying a top glaze on the surface of the brick; inkjet printing an ordinary ink pattern on the surface of the brick after the top glaze is applied; applying a transparent protective glaze on the surface of the brick after the ordinary ink pattern is inkjet printed; inkjet printing the gold glaze ink according to any one of claims 1 to 4 on the surface of the brick after the transparent protective glaze is applied; firing the brick after the gold glaze ink is applied to obtain the gold-colored decorative ceramic rock slab; or the preparation method comprises the following steps: applying a top glaze on the surface of the brick; inkjet printing an ordinary ink pattern on the surface of the brick after the top glaze is applied; applying a transparent protective glaze on the surface of the brick after the ordinary ink pattern is inkjet printed; inkjet printing a mixed ink of commercial digital color ink and the gold glaze ink according to any one of claims 1 to 4 on the surface of the brick after the transparent protective glaze is applied; firing the brick after the mixed ink is applied to obtain the gold-colored decorative ceramic rock slab.

6. The preparation method according to claim 5, characterized in that: The gold glaze ink or the mixed ink is printed by inkjet printing using at least two channels, and the grayscale of each channel is at least 40%.

7. The preparation method according to claim 5, characterized in that The chemical composition of the glaze includes, by mass percentage, 1-5% loss on ignition, 54-56% SiO2, 23-26% Al2O3, 0.1-0.6% Fe2O3, 0.01-0.1% TiO2, 0.5-1.5% CaO, 0.5-1% MgO, 3-6% K2O, 2-4% Na2O, and 4.5-6.5% ZrO2.

8. The preparation method according to claim 5, characterized in that: The glaze is applied by pouring glaze; the specific gravity of the glaze is 1.85-1.90 g / cm 3 , application amount is 500~600g / m 2 .

9. The preparation method according to claim 5, characterized in that The chemical composition of the transparent protective glaze includes, by mass percentage, 0.5-2% loss on ignition, 56-60% SiO2, 11-15% Al2O3, 0.1-0.3% Fe2O3, 0.01-0.1% TiO2, 1-3% CaO, 1-3% MgO, 4-6% K2O, 2-4% Na2O, 1.5-2.5% ZnO, 0.5-2.5% BaO, and 4-8% SrO.

10. The preparation method according to claim 5, characterized in that The transparent protective glaze is applied by spraying; the specific gravity of the transparent protective glaze is 1.4-1.5 g / cm 3 , application amount is 550~700g / m 2 .

11. The preparation method according to claim 5, characterized in that: The sintering temperature is 1160-1210° C., and the sintering time is 50-110 minutes.

12. A golden decorative ceramic rock plate, characterized in that: The gold-colored decorative ceramic rock slab is obtained according to the preparation method of the gold-colored decorative ceramic rock slab according to any one of claims 5 to 11.

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