A process for the production of a ceramic article with a crystallographic color

Abstract

The application discloses a kind of ceramic products crystal color process, including the following steps: S1, preparation powdered ground glaze and transparent color glaze;S2, and respectively using water to be modulated into liquid ground glaze and liquid transparent color glaze;S3, modulated ground glaze is hand drawn to ceramic product on blank pattern in advance drawing, then placed in electric kiln and is fired;S4, in step S3, after firing, it is taken out and naturally cooled to normal temperature, then transparent color glaze is hand drawn to ceramic product on already fired ground glaze, then placed in electric kiln and is fired;S5, after firing, it is taken out and naturally cooled to normal temperature, then washes and dyes, after washing and dyeing, first firing is carried out, it is taken out and naturally cooled to normal temperature to result, after result, hand draw a layer of transparent glaze;The crystal color process of the application changes the composition of ground glaze and changes process steps and temperature, so that ceramic product is formed after decoration, the whole glaze layer outside ceramic has strong stereoscopic sense, color is crystal clear, and jelly-like can be seen with naked eye.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of overglaze decoration of ceramic products, and in particular to a crystal superposition decoration process for ceramic products. BACKGROUND

[0002] Ceramic products with color are first formed into a body, and then glazed, and the quality of the ceramic products is determined not only by the body, but also by the glaze outside the body. The crystal superposition decoration process is overglaze decoration, which is one of the main decoration techniques for ceramics. It involves drawing various images on the glaze surface of a fired white body using various colored materials, and then performing a second firing in a kiln, and low-temperature curing of the colored materials. It usually includes colored drawing porcelain, colored decoration porcelain, blue and white porcelain with colored decoration, five-color porcelain, powder color porcelain, color ground and gold drawing porcelain, and enamel color, etc.

[0003] The current overglaze decoration technology uses glass white to fill white on a white body, and then performs washing and dyeing after firing (780-800 DEG C), and then performs a second firing (610-640 DEG C), and then performs detailed outlining and drawing (commonly known as results), and finally fires at 780-800 DEG C to form porcelain. The finished product is white, and the overall color is thick and bright under the white background, with high color saturation, but the stereoscopic effect is not good. There are some products on the market that have good stereoscopic effect, but they are filled with thick glass white glaze, which is easy to burn, and the color dispersion effect is poor, and the overall picture looks "stiff and lifeless".

[0004] Therefore, we propose a crystal superposition decoration process for ceramic products to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a crystal superposition decoration process for ceramic products to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A crystal superposition decoration process for ceramic products, comprising the following steps:

[0008] S1, preparing transparent glaze raw materials, glass white glaze raw materials, and transparent color glaze raw materials, and grinding the transparent glaze raw materials, glass white glaze raw materials, and transparent color glaze raw materials into powder;

[0009] S2, respectively adjusting the powder-like transparent glaze raw materials, glass white glaze raw materials, and transparent color glaze raw materials into liquid transparent glaze, liquid glass white glaze, and liquid transparent color glaze using water;

[0010] S3, hand-drawing the prepared transparent glaze into the blank pattern on the ceramic product, and then placing it in an electric kiln for firing;

[0011] S4, in step S3, after firing, take out the natural cooling to normal temperature, and then superimposed hand-drawing transparent color glaze or glass white glaze on the transparent white glaze of the ceramic product which has been fired, and then placed in the electric kiln for firing;

[0012] S5, in step S4, after firing, take out the natural cooling to normal temperature, and then wash and dye, and perform the first firing after washing and dyeing, after firing, take out the natural cooling to normal temperature, and then perform the result after natural cooling to normal temperature, and then hand-draw a layer of transparent white glaze, and then perform the second firing, to complete the ceramic product with crystal color.

[0013] The transparent white glaze is divided into a plurality of types, which are transparent white glaze one and transparent white glaze two, and the glass white glaze one is also divided into a plurality of types, which are glass white glaze one and glass white glaze two.

[0014] Further, the preparation process of the transparent white glaze one is that: limestone, sodium feldspar, quartz, anhydrous potassium carbonate, borax, and anhydrous borax are mixed, mixed and calcined at 1200℃, and then first ball milling, first 400 mesh screening, second ball milling and second 400 mesh screening are performed after the first 400 mesh screening.

[0015] The mass ratio of the limestone, sodium feldspar, quartz, anhydrous potassium carbonate, borax and anhydrous borax is 13:12:33:3:3:36.

[0016] Further, the preparation process of the transparent white glaze two is that: limestone, potassium feldspar, kaolin, quartz, borax and boric acid are mixed, mixed and calcined at 1200℃, and then first ball milling, first 400 mesh screening, second ball milling and second 400 mesh screening are performed after the first 400 mesh screening.

[0017] The mass ratio of the limestone, potassium feldspar, kaolin, quartz, borax and boric acid is 14:17:14:26:20:19.

[0018] Further, the preparation process of the glass white glaze one is that: limestone, potassium feldspar, kaolin, quartz and borax are mixed, mixed and calcined at 1200℃, and then first ball milling, first 400 mesh screening, second ball milling and second 400 mesh screening are performed after the first 400 mesh screening.

[0019] The mass ratio of the limestone, potassium feldspar, kaolin, quartz and borax is 7:35:7:15:36.

[0020] Further, the preparation process of the glass white glaze two is: borax, quartz, feldspar, limestone, kaolin, alkali ash are mixed, mixing is calcined at 1060 DEG C, after calcination, first ball milling, first 400 mesh sieving, after first 400 mesh sieving, second ball milling, second 400 mesh sieving are carried out again;

[0021] Wherein, the mass ratio of borax, quartz, feldspar, limestone, kaolin, alkali ash is 25:25:12:13:13:12.

[0022] Further, in the step S3, the firing temperature is 810-830 DEG C, in the step S4, the firing temperature is 780-800 DEG C, in the step S5, the first firing temperature after washing and dyeing is 610-640 DEG C, and the second firing temperature after washing and dyeing and the result is 778-783 DEG C.

[0023] Further, the transparent color glaze is transparent white glaze added color glaze material, the mass ratio of transparent white glaze and color glaze material is 95:5, and when the multi-layer transparent color glaze is superimposed, the transparent color glaze is fired once for each layer of transparent color glaze.

[0024] For the above, the transparent white glaze, the glass white glaze and the transparent color glaze are selected according to the corresponding color of the pattern; the transparent white glaze is matched with multiple kinds, which can be selected according to the transparent color glaze to be used later, and when the transparent color glaze is colored, in addition to the conventional pigment glaze, multiple kinds of alkali metal oxide transparent color glaze are additionally matched, different alkali transparent color glazes are selected according to the glossiness and opacity of the base glaze, so as to form complementation with the base glaze, thereby ensuring the glossiness of the entire ceramic outer glaze layer.

[0025] Compared with the prior art, the beneficial effects of the present application are: when the ceramic product is decorated by using the crystal superposition color process in the present application, by changing the composition of the base glaze and the process steps and temperature, the entire glaze layer outside the ceramic product after decoration and molding has strong stereoscopic sense, the color is crystal clear, and the jelly-like color is visible to the naked eye, and the color softness is strong:

[0026] Before washing and dyeing, the transparent white glaze is used as the base on the blank pattern, after the layer of transparent white glaze is fired and cooled to room temperature, another layer of glaze is continuously superimposed, which is selected from the transparent white glaze, the glass white glaze and the transparent color glaze according to the pattern on the white blank, so that the entire glaze layer outside the ceramic product after decoration and molding has strong stereoscopic sense, the color is crystal clear, the jelly-like color is visible to the naked eye, and the color softness is strong.

[0027] In the process, each layer of glaze is fired, and the temperature is accurately controlled each time to ensure that there is no bleeding and color mixing between the inner and outer layers. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Effect picture after firing at 810℃ in Example 1;

[0029] Figure 2 Effect picture after firing at 820℃ in Example 1;

[0030] Figure 3 Effect picture after firing at 830℃ in Example 1;

[0031] Figure 4 Effect picture after firing at 780℃ in Example 2;

[0032] Figure 5 Effect picture after firing at 790℃ in Example 2;

[0033] Figure 6 Effect picture after firing at 800℃ in Example 2;

[0034] Figure 7 Effect picture after firing at 610℃ and 645℃ in Example 3;

[0035] Figure 8 Effect picture after firing at 620℃ and 645℃ in Example 3;

[0036] Figure 9 Effect picture after firing at 640℃ and 645℃ in Example 3;

[0037] Figure 10 Effect picture after firing at 770℃ in Example 4;

[0038] Figure 11 Effect picture after firing at 778℃ in Example 4;

[0039] Figure 12 Effect picture after firing at 780℃ in Example 4;

[0040] Figure 13 Effect picture after firing at 783℃ in Example 4;

[0041] Figure 14 Effect picture after firing at 790℃ in Example 4;

[0042] Figure 15 Effect picture after firing and washing in Example 5;

[0043] Figure 16 Effect picture after firing and washing in Example 5;

[0044] Figure 17 Finished product picture of Comparative Example 1;

[0045] Figure 18 For Example 4, the use effect diagram of the transparent white glaze 1 after firing at 780°C is compared with the finished product of Comparative Example 1;

[0046] Figure 19 For transparent white glaze 1, the use effect diagram is shown;

[0047] Figure 20 For transparent white glaze 2, the use effect diagram is shown;

[0048] Figure 21 For transparent white glaze 1 and transparent white glaze 2, the comparison diagram is shown;

[0049] Figure 22 For glass white glaze 1, the use effect diagram is shown;

[0050] Figure 23 For glass white glaze 2, the use effect diagram is shown;

[0051] Figure 24 For glass white glaze 1 and glass white glaze 2, the comparison diagram is shown. DETAILED DESCRIPTION

[0052] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0053] In the description of the present application, it needs to be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0055] A ceramic product laminated crystal color process, comprising the following steps:

[0056] S1, preparing transparent white glaze raw materials, glass white glaze raw materials, transparent color glaze raw materials, and grinding the transparent white glaze raw materials, glass white glaze raw materials, transparent color glaze raw materials into powder;

[0057] S2, the powder of the transparent white glaze raw materials, glass white glaze raw materials, transparent color glaze raw materials is respectively adjusted into liquid transparent white glaze, liquid glass white glaze and liquid transparent color glaze with water;

[0058] S3, the prepared transparent white glaze is hand-drawn on the ceramic product into the blank pattern in advance, and then placed in an electric kiln for firing;

[0059] S4, in step S3, after firing, take out and cool down (cool to room temperature naturally, as long as it is not hot), then superimpose hand-draw transparent color glaze or glass white glaze on the transparent white glaze that has been fired on the ceramic product, and then place it in an electric kiln for firing;

[0060] S5, in step S4, after firing, take out and cool down (cool to room temperature naturally), then wash and dye, and perform the first firing after washing and dyeing, after firing, take out and cool down (cool to room temperature naturally), after cooling, perform the result, after the result, hand-draw a layer of transparent white glaze, then perform the second firing, and complete the ceramic product laminated crystal color;

[0061] Among them, the washing and dyeing is to grind the purchased pigment raw materials into powder, then mix them with kerosene to form a paste, and then color with a coloring pen, and then wash and dye with a washing and dyeing pen, that is, to spread the colored pigment, the result is to outline the pigment on the washing and dyeing part with a pen after the washing and dyeing step is completed and the temperature is cooled down, to supplement and enrich the details of the pattern, such as the stripes on the butterfly wings, the whiskers and other details, washing and dyeing and result are mature technologies.

[0062] In the above, in order to further improve the transparency of the entire glaze layer, a layer of transparent white glaze can be applied after washing and dyeing and the first firing is completed, and then fired at a temperature of 778-783℃.

[0063] In the above, the transparent white glaze includes two different transparent white glazes, transparent white glaze one and transparent white glaze two, both of which are transparent as a whole, in addition, these transparent white glazes will not change in color and luster due to the influence of temperature during later firing, each has different gloss and opacity, therefore, the effect of gloss and opacity required by the entire glaze layer is selected;

[0064] In the above, the transparent color glaze is transparent white glaze added with color glaze material, and the mass ratio of the transparent white glaze to the color glaze material is 95:5, that is, in the preparation process of each transparent white glaze, after the first calcination, ball milling is performed, then the 400-mesh sieve plate is passed, and after drying / air drying, the mixed material (color glaze material) is added for the second calcination, and after ball milling, the 400-mesh sieve plate is passed, when the multi-layer transparent color glaze is stacked, the color glaze material is added once for each layer of transparent color glaze, and the color glaze material includes selenium red glaze, red glaze, yellow glaze, tea brown glaze, black brown glaze, black glaze, gray glaze, fresh rose red glaze, white glaze, rose red glaze, sapphire blue glaze, sea blue glaze, Turkish blue glaze, cyan glaze, and green glaze;

[0065] The transparent color glaze can also be an alkali metal oxide transparent color glaze, and two kinds of transparent color glazes are selected according to needs;

[0066] The alkali metal oxide transparent color glaze includes:

[0067] The alkali metal oxide Turkish blue glaze is transparent white glaze added with copper oxide in a mass ratio of 1%-6%, and in practice, the ratio of the copper oxide to the transparent white glaze is 1:99, 4:96, or 6:94, and the effects of the three are the same;

[0068] The alkali metal oxide blue glaze is transparent white glaze added with cobalt oxide in a mass ratio of 0.1%-5%, and in practice, the ratio of the cobalt oxide to the transparent white glaze is 0.1:99.9, 3:97, or 5:95, and the effects of the three are the same;

[0069] The alkali metal oxide brown glaze I is transparent white glaze added with iron oxide in a mass ratio of 1%-5%, and in practice, the ratio of the iron oxide to the transparent white glaze is 1:99, 3:97, or 5:95, and the effects of the three are the same;

[0070] The alkali metal oxide brown purple glaze is transparent white glaze added with manganese oxide in a mass ratio of 1%-5%, and in practice, the ratio of the manganese oxide to the transparent white glaze is 1:99, 3:97, or 5:95, and the effects of the three are the same;

[0071] The alkali metal oxide brown glaze II is transparent white glaze added with nickel oxide in a mass ratio of 0.1-1%, and in practice, the ratio of the nickel oxide to the transparent white glaze is 0.1:99.9, 0.5:99.5, or 1:99, and the effects of the three are the same;

[0072] The alkali metal oxide green glaze is transparent white glaze added with chromium oxide in a mass ratio of 0.1-0.5%, and in practice, the ratio of the nickel oxide to the transparent white glaze is 0.1:99.9, 0.3:99.7, or 0.5:99.5, and the effects of the three are the same;

[0073] Among them, selenium red glaze, red glaze, yellow glaze, tea brown glaze, black brown glaze, black glaze, gray glaze, fresh rose red glaze, white glaze, rose red glaze, dark blue glaze, sea blue glaze, Turkish blue glaze, green glaze, green glaze are conventional color glaze, but not limited to these, the raw materials and mass ratio of these color glaze are

[0074] Selenium red glaze:

[0075] Selenium powder: 5-15;

[0076] Cadmium oxide: 15-30;

[0077] Cadmium sulfide: 60-70;

[0078] Mixing calcination: 600℃.

[0079] Red glaze:

[0080] Iron oxide: 100%.

[0081] Yellow glaze:

[0082] Antimony acid: 40-55;

[0083] Iron oxide: 0-8;

[0084] Red lead: 40-55;

[0085] Zinc oxide: 0-8;

[0086] Mixing calcination: 950℃.

[0087] Tea brown glaze:

[0088] Iron oxide: 55-70;

[0089] Zinc oxide: 30-40;

[0090] Mixing calcination: 1000℃.

[0091] Black brown glaze:

[0092] Black cobalt oxide: 5-15;

[0093] Iron oxide: 45-55;

[0094] Zinc oxide: 35-50

[0095] Mixing calcination: 1000℃.

[0096] Black glaze:

[0097] Black cobalt oxide: 30-45;

[0098] Copper oxide: 0-8;

[0099] Manganese dioxide: 35-50;

[0100] Iron oxide: 10-25;

[0101] Mixed calcination: 1140°C.

[0102] Grey glaze:

[0103] Antimony oxide: 1-8;

[0104] Tin oxide: 90-98;

[0105] Mixed calcination: 1200°C.

[0106] Fresh rose red glaze:

[0107] Rose red material: 70-90;

[0108] Gold liquid (9%): 0.5-2;

[0109] Tin oxide: 8-20;

[0110] Calcium stannate: 40-60;

[0111] Quartz: 20-30;

[0112] Calcined kaolin: 5-15;

[0113] Mixed calcination: 700°C.

[0114] White glaze:

[0115] Calcium oxide: 100%;

[0116] Mixed calcination: 1250°C.

[0117] Rose red glaze:

[0118] Lead chromate: 0-1;

[0119] White lead (trace): 1-10;

[0120] Tin oxide: 5-20;

[0121] Mixed calcination: 1140°C.

[0122] Cobalt blue glaze:

[0123] Grey cobalt oxide: 20-35;

[0124] Zinc oxide: 35-50;

[0125] Mixed calcination: 1200°C.

[0126] Sea green glaze:

[0127] Grey cobalt oxide: 15-30;

[0128] Zinc oxide: 1-10;

[0129] Aluminum hydroxide: 70-85;

[0130] Mixed calcination: 1300℃.

[0131] Turkish blue glaze:

[0132] Gray cobalt oxide: 8-20;

[0133] Zinc oxide: 10-20;

[0134] Aluminum hydroxide: 70-85;

[0135] Mixed calcination: 1200℃.

[0136] Blue-green glaze:

[0137] Gray cobalt oxide: 10-25;

[0138] Chromium oxide: 40-50 (optional);

[0139] Zinc oxide: 10-20;

[0140] Aluminum hydroxide: 20-30;

[0141] Mixed calcination: 1250℃.

[0142] Green glaze:

[0143] Gray cobalt oxide: 5-10;

[0144] Cadmium oxide: 50-60;

[0145] Zinc oxide: 20-30;

[0146] Aluminum hydroxide: 8-15;

[0147] Mixed calcination: 1250℃. Example 1

[0148] Following the above-described process, the prepared translucent white glaze was hand-painted onto blank patterns on three identical ceramic pieces. These pieces were then fired separately in an electric kiln at temperatures of 810℃, 820℃, and 830℃, respectively. The resulting effects are as follows. Figures 1-3 As shown. Example 2

[0149] The prepared transparent white glaze is hand-painted into the blank patterns on the five same ceramic products, and then they are placed in an electric kiln for firing at a temperature of 830°C. Then, step S4 is performed at a temperature of 790°C. After the firing is completed, washing and dyeing are performed, and then 620°C firing is performed. After the firing of the three products is completed and they are cooled, a layer of transparent white glaze is added to each of them, and then 770°C, 778°C, 780°C, 783°C and 790°C firing is performed, respectively. The firing effects are shown in Figs. 8A-8E, respectively. Figures 4-6 As shown in Figs. 8A-8E, respectively, Figures 4-6 In Figs. 8A-8E, region 1 is not coated with transparent color glaze, and region 2 is coated with transparent color glaze. Example 3

[0150] The prepared transparent white glaze is hand-painted into the blank patterns on the five same ceramic products, and then they are placed in an electric kiln for firing at a temperature of 830°C. Then, step S4 is performed at a temperature of 790°C. After the firing is completed, washing and dyeing are performed, and then 620°C firing is performed. After the firing of the three products is completed and they are cooled, a layer of transparent white glaze is added to each of them, and then 770°C, 778°C, 780°C, 783°C and 790°C firing is performed, respectively. The firing effects are shown in Figs. 8A-8E, respectively. Figures 7-9 As shown in Figs. 8A-8E, respectively, Example 4

[0151] The prepared transparent white glaze is hand-painted into the blank patterns on the five same ceramic products, and then they are placed in an electric kiln for firing at a temperature of 830°C. Then, step S4 is performed at a temperature of 790°C. After the firing is completed, washing and dyeing are performed, and then 620°C firing is performed. After the firing of the three products is completed and they are cooled, a layer of transparent white glaze is added to each of them, and then 770°C, 778°C, 780°C, 783°C and 790°C firing is performed, respectively. The firing effects are shown in Figs. 8A-8E, respectively. Figures 10-14 As shown in Figs. 8A-8E, respectively,

[0152] For Examples 1-4, the pattern is a butterfly. In order to meet the coloring requirements of the butterfly, the transparent white glaze used in Examples 1-4 is transparent white glaze II, and the transparent color glaze is transparent white glaze II plus yellow glaze. In addition, no glass white glaze is used for coloring the butterfly. It should be noted that the selection and use of transparent white glaze, glass white glaze and transparent color glaze are based on the corresponding colors of the pattern. Example 5

[0153] The steps of the embodiment 1 to the embodiment 4 are adopted, the pattern of the embodiment is still a butterfly, but a butterfly with different color tone, the transparent white glaze adopted is the transparent white glaze 1, the transparent color glaze adopted is the transparent white glaze 1 plus yellow glaze, and a layer of glass white glaze is drawn on the transparent white glaze, the semi-finished product before washing and dyeing in the embodiment is shown in Figure 15 , and the finished product after washing and dyeing is shown in Figure 16 .

[0154] Comparative example 1

[0155] The common base glaze and transparent color glaze on the market are adopted, and the ceramic product with the same blank pattern in the embodiment 1 to the embodiment 4 is adopted, and then the superimposed base glaze firing, the transparent color glaze firing, the washing and dyeing firing and the like are carried out, and finally the result is shown in Figures 17-18 , the finished product presents a porcelain white color, and under the background of the porcelain white color, the overall color is thick and bright, the color saturation is high, but the stereoscopic effect is poor.

[0156] In the comparative example 1, the base glaze is lead powder, glass white and snow white, and the transparent color glaze is all the pigments in the snow white and the glass white to adjust the corresponding color;

[0157] Lead powder: stone powder, blue lead (red lead), potassium nitrate;

[0158] Glass white: lead powder, glass powder, potassium nitrate, white stone;

[0159] Snow white: stone powder, lead powder.

[0160] The use effect of the transparent white glaze 1, the use effect of the transparent white glaze 2 and the comparison between the transparent white glaze 1 and the transparent white glaze 2 are shown in Figures 18-21 .

[0161] In the above, the glass white glaze also adopts two adjustment methods, and the two glass white glazes are also selected according to the glossiness and opalescence performance required by the entire glaze layer.

[0162] The use effect of the glass white glaze 1, the use effect of the glass white glaze 2 and the comparison between the glass white glaze 1 and the glass white glaze 2 are shown in Figures 22-24 .

[0163] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by the person skilled in the art.

Claims

1. A ceramic product layering coloring process, characterized in that: Includes the following steps: S1. Prepare translucent white glaze raw materials, glass white glaze raw materials, and transparent colored glaze raw materials, and grind the translucent white glaze raw materials, glass white glaze raw materials, and transparent colored glaze raw materials into powder; S2. The powdered translucent white glaze raw material, glass white glaze raw material, and transparent colored glaze raw material are respectively mixed with water to form liquid translucent white glaze, liquid glass white glaze, and liquid transparent colored glaze; S3. Hand-paint the prepared translucent white glaze onto the pre-drawn blank pattern on the ceramic product, and then place it in an electric kiln for firing. In step S4 and S3, after firing, the product is taken out and naturally cooled to room temperature. Then, transparent colored glaze or glass white glaze is applied to the ceramic product and hand-painted onto the already fired transparent white glaze. Then, it is placed in an electric kiln for firing. In steps S5 and S4, after firing, the product is taken out and allowed to cool naturally to room temperature. Then it is washed and dyed, and then fired for the first time after washing and dyeing. After firing, the product is taken out and allowed to cool naturally to room temperature. After cooling naturally to room temperature, the details are outlined and painted. After the details are outlined and painted, a layer of translucent white glaze is hand-painted. Then the product is fired for the second time to complete the ceramic product with layered crystal colors. In step S3, the firing temperature is 810-830℃; in step S4, the firing temperature is 780-800℃; in step S5, the first firing temperature after washing and dyeing is 610-640℃; and the second firing temperature after washing, dyeing, layering, and applying white glaze and outlining details is 778-783℃. Among them, the translucent white glaze is divided into several types, namely translucent white glaze one and translucent white glaze two; The preparation process of the transparent white glaze is as follows: limestone, albite, quartz, anhydrous potassium carbonate, borax, and anhydrous borax are mixed and calcined at 1200℃. After calcination, the mixture is ball-milled for the first time and sieved through a 400-mesh sieve for the first time. After the first 400-mesh sieve, the mixture is ball-milled for the second time and sieved through a 400-mesh sieve for the second time. The preparation process of the translucent white glaze II is as follows: limestone, potassium feldspar, kaolin, quartz, borax and boric acid are mixed and calcined at 1200℃. After calcination, the mixture is ball-milled for the first time and sieved through a 400-mesh sieve for the first time. After the first 400-mesh sieve, the mixture is ball-milled for the second time and sieved through a 400-mesh sieve for the second time. The transparent colored glaze is made by adding colored glaze to a transparent white glaze, and the mass ratio of the transparent white glaze to the colored glaze is 95:

5. There are several types of white glass glaze, namely white glass glaze type 1 and white glass glaze type 2. The preparation process of the glass white glaze is as follows: limestone, potassium feldspar, kaolin, quartz and borax are mixed and calcined at 1200℃. After calcination, the mixture is ball-milled for the first time and sieved through a 400-mesh sieve for the first time. After the first 400-mesh sieve, the mixture is ball-milled for the second time and sieved through a 400-mesh sieve for the second time. The preparation process of the glass white glaze II is as follows: borax, quartz, feldspar, limestone, kaolin, and soda ash are mixed and calcined at 1060℃. After calcination, the mixture is ball-milled for the first time and sieved through a 400-mesh sieve for the first time. After the first 400-mesh sieve, the mixture is ball-milled for the second time and sieved through a 400-mesh sieve for the second time.

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