Dunhuang mural stone green ceramic rock plate and manufacturing method

Abstract

The present application relates to dunhuang murals stone green ceramic rock plate and manufacturing method, including: (1) pressing blank; (2) low zirconium series super white cosmetic clay: cosmetic clay is composed according to weight part: washed highland clay 6, black mud 3, glass frit 18, diopside 2, quartz powder 2, barium-based frit 4, ultrafine quartz powder 12, zirconium white frit 15, calcined alumina powder 6, zirconium silicate 3, potassium feldspar 10, nepheline powder 7, ball clay 10, calcined talc 2, sodium tripolyphosphate 0.6, sodium carboxymethyl cellulose 0.3; (3) inkjet printing: color ink is combined by cyan, blue, brown, wrapped yellow, red and black; (4) promote green glaze: promote green glaze formula is composed according to weight part: high-zinc low-temperature frit 32, fused quartz 28, quartz powder 17, white carbon black 14, highland clay 9; (5) apply protective glaze: according to the selection of product surface gloss and texture of green series product development, it can be dry particle glaze, matt or bright protective glaze; (6) high temperature sintering.

Description

Technical Field

[0001] This invention belongs to the field of ceramic slab technology, and specifically relates to a green ceramic slab based on Dunhuang mural stone and its manufacturing method. Background Technology

[0002] In the elements of Dunhuang murals, turquoise is a color scheme that ancient artists favored. Although it is not presented as the main color in the murals, it is undoubtedly a bright and beautiful color scheme in Dunhuang mural art, which makes the whole picture vivid and harmonious, against the backdrop of the main colors such as crimson and earth brown.

[0003] However, in the field of architectural ceramics, ceramic tiles or ceramic slabs are usually dominated by white, apricot, brown, blue, and reddish-gray tones. This is mainly due to the limited channels of inkjet printing decorative inks, which are generally configured with blue, brown, yellow, red, and black inks. As a result, green products are less developed. Even when they are developed, some green products are synthesized by mixing blue and yellow. Green products developed by this ink combination are generally impure in color, either too blue or too yellow, and suffer from poor production stability. On the other hand, green usually uses chromium as the source of green pigments. At the same time, the main particle size of chromium inks is usually submicron. The finer the chromium base colorant, the higher its reaction degree with some glaze systems during ceramic firing, resulting in unstable color or discoloration. The stone green products of Dunhuang murals are carriers of the inheritance and dissemination of traditional art, and the purity and effect of the stone green they present are crucial. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention aims to provide a solution to the problem of the scarcity or impure color development of green products in the ceramic building materials industry. Through the research, development, and combined application of low-zirconium ultra-white slip, celadon ceramic ink, and green-promoting glaze, a Dunhuang mural-inspired stone-green ceramic slab is prepared. This slab inherits the artistic charm of Dunhuang murals, using Dunhuang as a starting point and porcelain as a bridge to engrave the soul of Chinese civilization, connecting with the world and continuously promoting the leading role of Dunhuang culture in the global art field. Another technical problem this invention aims to solve is to provide a product with good production stability, using high-zinc low-temperature frit to replace traditional calcined zinc oxide. The high-zinc low-temperature frit is produced by high-temperature melting and subsequent clarification and melting. The high-temperature melting time during preparation is relatively long, resulting in a more complete reaction and a relatively stable zinc glass phase material with minimal Zn formation during the firing process in the green-promoting glaze. 2+ This method, which has a relatively small impact on the green coloration of Dunhuang mural stones, is also beneficial for producing blue, brown, yellow, and bright red ink colors.

[0005] The technical solution of this invention is the method for preparing the green ceramic slab based on the Dunhuang murals, which is characterized by including the following steps:

[0006] (1) Pressed blank;

[0007] (2) Low-zirconium super-white slip: The low-zirconium super-white slip formula consists of the following components by weight: 5-8 parts washed kaolin, 2-5 parts black mud, 15-20 parts glass frit, 0-2 parts diopside, 0-2 parts quartz powder, 2-5 parts barium frit, 10-15 parts ultrafine quartz powder, 10-20 parts zirconium white frit, 6-10 parts calcined alumina powder, 1-3 parts zirconium silicate, 10-15 parts potassium feldspar, 5-8 parts nepheline powder, 10-15 parts ball clay, 2-3 parts calcined talc, 0.5-1 part sodium tripolyphosphate, and 0-0.5 parts sodium carboxymethyl cellulose.

[0008] (3) Inkjet printing: The color inks are mainly composed of cyan, blue, brown, yellow, bright red, and black.

[0009] (4) Spraying green glaze: The green glaze formula consists of the following components by weight: 30-35 parts high zinc low temperature frit, 20-28 parts fused silica, 17-20 parts quartz powder, 10-15 parts fumed silica, and 8-12 parts kaolin.

[0010] (5) Apply protective glaze: Select the surface gloss and texture of the product based on the development of green products, which can be dry granule glaze, matte or glossy protective glaze;

[0011] (6) High-temperature firing.

[0012] As a preferred embodiment, the low-zirconium ultra-white slip material described in step (2) is further composed of the following components by weight: 6 parts washed kaolin, 3 parts black mud, 18 parts glass frit, 2 parts diopside, 2 parts quartz powder, 4 parts barium frit, 12 parts ultrafine quartz powder, 15 parts zirconium white frit, 6 parts calcined alumina powder, 3 parts zirconium silicate, 10 parts potassium feldspar, 7 parts nepheline powder, 10 parts ball clay, 2 parts calcined talc, 0.6 parts sodium tripolyphosphate, and 0.3 parts sodium carboxymethyl cellulose.

[0013] The chemical composition of the low-zirconium ultra-white slip is as follows by weight percentage: SiO2 62.47%, Al2O3 22.95%, Fe2O3 0.15%, CaO 1.76%, MgO 2.13%, K2O 4.34%, Na2O 1.68%, ZrO2 2.92%, BaO 1.60%.

[0014] Preferably, the chemical composition of the glass fused block in step (2) consists of the following components by weight percentage: SiO2 68.51%, Al2O3 13.82%, Fe2O3 0.10%, CaO 3.15%, MgO 1.21%, K2O 9.68%, Na2O 1.38%, B2O3 2.15%;

[0015] The chemical composition of the barium-based frit consists of the following components by weight percentage: SiO2 38.12%, Al2O3 15.46%, Fe2O3 0.01%, CaO 1.27%, MgO 2.17%, K2O 0.23%, Na2O 3.38%, BaO 39.36%.

[0016] The chemical composition of the zirconium white ingot consists of the following components by weight percentage: SiO2 61.24%, Al2O3 10.15%, Fe2O3 0.14%, CaO 12.18%, MgO 3.05%, K2O 4.07%, Na2O 1.15%, ZrO2 5.44%, ZnO 2.13%, and LOI 0.45%.

[0017] Preferably, the low-zirconium ultra-white slip used in step (2) is applied by glazing, with a glaze specific gravity of 1.76–1.91 and a glaze application amount of 400–550 g / m³. 2 .

[0018] Preferably, the cyan-green ink formulation in step (3) consists of the following components by weight: 42 parts cyan-green ceramic ink base powder, 45 parts resin solvent, 5 parts humectant, 5 parts dispersant, and 3 parts surfactant. The chemical composition of the cyan-green ceramic ink base powder by weight percentage consists of the following components: SiO2 23.29%, Al2O3 5.73%, ZrO2 31.31%, CaO 3.07%, Cr2O3 25.76%, CoO 5.05%, and Pr6O2. 11 3.03%, Na2O 1.82%, Fe2O30.05%, MgO 0.84%, LOI 0.05%.

[0019] Preferably, the greening glaze material in step (4) is further composed of the following components by weight: 32 parts high-zinc low-temperature frit, 28 parts fused silica, 17 parts quartz powder, 14 parts silica, and 9 parts kaolin; the chemical composition of the greening glaze material by weight percentage is composed of the following components: SiO2 60.5%, Al2O3 9.1%, CaO 12.1%, MgO 2.2%, K2O 4.3%, Na2O 0.5%, and ZnO 11.3%.

[0020] Preferably, the chemical composition of the high-zinc low-temperature fused block in step (4) consists of the following components by weight percentage: SiO2 60.5%, Al2O3 9.1%, CaO 12.1%, MgO 2.2%, K2O 4.3%, Na2O 0.5%, and ZnO 11.3%.

[0021] As a preferred method, the preparation method of the green-promoting glaze in step (4) is as follows: the high-zinc low-temperature frit, fused silica, quartz powder, and kaolin materials in the green-promoting glaze formula are mixed in proportion, with the addition of 0.15 parts of sodium carboxymethyl cellulose, 0.5 parts of sodium tripolyphosphate, and 40 parts of water. The mixture is ball-milled until 0.2-0.4% residue remains on a 325-mesh sieve and set aside. Silica is added at the glazing site by hydration at a ratio of 1:5 (silica:water). Silica is slowly added to the water using a stirring pump and stirred until no lumps are observed, resulting in a colloidal substance. The colloidal substance, in the same dry weight ratio as silica in the formula, is added to the glaze formula and stirred in a circulating manner until homogeneous, thus obtaining a ready-to-use green-promoting glaze slurry.

[0022] Preferably, the greening glaze described in step (4) is applied by spraying, with a glaze specific gravity of 1.15–1.18 and an application amount of 200–220 g / m³. 2 .

[0023] Another technical solution of the present invention is the Dunhuang mural stone-green ceramic slab, which is special in that it is prepared by the Dunhuang mural stone-green ceramic slab preparation method according to any one of claims 1-9.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] (1) The green-promoting glaze formula of this invention uses high-zinc low-temperature frit instead of traditional calcined zinc oxide. Green inks typically use chromium compounds as the source of their green color, while transparent glazes require the addition of ZnO to achieve transparency. During firing, based on the priority order of cation coordination, the ZnO in the glaze... 2+ and Cr in ink 3+ The most readily formed is structurally stable zinc-chromium spinel (Zn)[Cr2]O4, i.e., the green chromophore Cr. 3+ Reacting with ZnO can decompose the pigment and affect the coloring effect. This invention replaces traditional calcined zinc oxide with a high-zinc, low-temperature frit. The high-zinc, low-temperature frit is prepared by high-temperature melting and subsequent clarification and melting. The high-temperature melting process involves a longer melting time, resulting in a more complete reaction. It is a zinc glass phase substance with a relatively stable internal structure, and therefore generates very little Zn during the firing process when used in green glazes. 2+ This means it has little impact on the color of green, but it is also beneficial for the color of blue, brown, yellow, and red inks.

[0026] (2) In the green glaze formulation of the present invention, fused silica, quartz powder and white carbon black are all raw materials mainly composed of SiO2. When used alone, they are in an underfired state. In the glaze formulation, they react with the high zinc low temperature fused block in the formulation to form a high quartz glaze, which has good optical properties. This allows the color-producing particles in the ink to better scatter and reflect light, thereby enhancing the color saturation and gloss of the ink and further effectively promoting the color development of green ink.

[0027] (3) The low zirconium-based ultra-white slip of the present invention has a whiteness of 78°, which is high and beneficial to the color development of inkjet inks, especially green inks.

[0028] (4) The glass frit in the low zirconium-based ultra-white slip formulation of the present invention has the characteristics of a lower melting temperature and a wider sintering temperature range, which can improve the whiteness of the slip. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to embodiments:

[0030] Example 1:

[0031] The preparation method of Dunhuang mural-colored stone-green ceramic slabs includes the following steps:

[0032] (1) Pressed blank;

[0033] (2) Low-zirconium super-white slip: The low-zirconium super-white slip is composed of the following components by weight: 6 parts washed kaolin, 3 parts black mud, 18 parts glass frit, 2 parts diopside, 2 parts quartz powder, 4 parts barium-based frit, 12 parts ultrafine quartz powder, 15 parts zirconium white frit, 6 parts calcined alumina powder, 3 parts zirconium silicate, 10 parts potassium feldspar, 7 parts nepheline powder, 10 parts ball clay, 2 parts calcined talc, 0.6 parts sodium tripolyphosphate, and 0.3 parts sodium carboxymethyl cellulose; The chemical composition of the low-zirconium super-white slip is composed of the following components by weight percentage: SiO2 62.47%, Al2O3 22.95%, Fe2O3 0.15%, CaO 1.76%, MgO 2.13%, K2O 4.34%, Na2O 1.68%, ZrO2 2.92% BaO 1.60%; glazing method is used, glaze specific gravity is 1.76-1.78, glaze amount is 525-530 g / m³ 2 ;

[0034] The glass frit is a frit made primarily from waste glass. The chemical composition of the glass frit, by weight percentage, consists of the following components: SiO2 68.51%, Al2O3 13.82%, Fe2O3 0.10%, CaO 3.15%, MgO 1.21%, K2O 9.68%, Na2O 1.38%, and B2O3 2.15%.

[0035] The barium-based frit is a frit prepared from barium oxide as the base material. The chemical composition of the barium-based frit consists of the following components by weight percentage: SiO2 38.12%, Al2O3 15.46%, Fe2O3 0.01%, CaO 1.27%, MgO 2.17%, K2O 0.23%, Na2O 3.38%, BaO 39.36%.

[0036] The zirconium white frit is a frit containing zirconium and having an initial melting temperature of 900–1000°C. The chemical composition of the zirconium white frit, by weight percentage, consists of the following components: SiO2 61.24%, Al2O3 10.15%, Fe2O3 0.14%, CaO 12.18%, MgO 3.05%, K2O 4.07%, Na2O 1.15%, ZrO2 5.44%, ZnO 2.13%, LOI 0.45%; and its fineness is 150–250 mesh.

[0037] Special Note: To ensure that the product can reproduce the rich and pure colors of the Dunhuang murals, it is necessary to ensure the purity of the ink color. This requires the slip to have a high whiteness, which is conducive to the color development of inkjet inks, especially green inks. Therefore, to ensure the whiteness of low-zirconium slip, the carbon content of washed kaolin should be controlled between 0.75% and 0.93% in the raw materials, achieving a whiteness of 67° under firing conditions of a maximum firing temperature of 1200℃ and a firing cycle of 70 minutes; the carbon content of black mud should be controlled between 1.35% and 1.48%, achieving a whiteness of 63° under firing conditions of a maximum firing temperature of 1200℃ and a firing cycle of 70 minutes; ultrafine quartz powder, calcined alumina powder, and zirconium silicate are industrial-grade raw materials, with an introduced fineness of passing through a 325-mesh sieve and a median particle size of 30±5 micrometers; potassium feldspar and nepheline powder are introduced with a fineness of 200-300 mesh; to ensure that the low-zirconium ultra-white slip is conducive to inkjet ink coloring, the iron content in the slip slurry should be controlled between 0.12% and 0.16%, and the fineness should be controlled to leave a residue of 0.4% to 0.7% on a 325-mesh sieve.

[0038] Regarding the adaptability adjustment of the slip formula for the Dunhuang mural stone green ceramic slab, the zircon white frit and calcined alumina powder in the formula are used as materials to adjust the firing temperature of the glaze. Under normal firing conditions, with a maximum firing temperature of 1200℃ and a firing cycle of 70 minutes, the green body + low zircon ultra-white slip is used for trial firing. The surface gloss of the test sample is 4-7° and the whiteness is 75-85°, which can meet the requirements of the slip for the color development of the Dunhuang mural stone green ceramic slab ink.

[0039] When the gloss of the green body + low zirconium-based ultra-white slip sample is less than 4°, it can be determined that the sample is under-fired. The zirconium white frit should be increased or the calcined alumina powder should be reduced.

[0040] When the gloss of the green body + low zirconium-based ultra-white slip sample is higher than 7°, it can be determined that the sample has been over-fired, which may cause defects such as bubbles and pinholes. The zirconium white frit should be reduced or the calcined alumina powder should be increased.

[0041] (3) Inkjet printing: The main colors of ink are cyan, blue, brown, yellow, red and black. Among them, the Dunhuang mural stone green ceramic rock slab uses cyan ceramic ink as the main color and blue as the auxiliary ink. Other colors of ink are selected and combined according to the pattern design.

[0042] The greenish-blue ink formulation comprises the following components by weight: 42 parts of greenish-blue ceramic ink base powder, 45 parts of resin solvent, 5 parts of humectant, 5 parts of dispersant, and 3 parts of surfactant. The chemical composition of the greenish-blue ceramic ink base powder by weight percentage comprises the following components: SiO2 23.29%, Al2O3 5.73%, ZrO2 31.31%, CaO 3.07%, Cr2O3 25.76%, CoO 5.05%, and Pr6O2. 11 3.03%, Na2O 1.82%, Fe2O3 0.05%, MgO0.84%, LOI: 0.05%.

[0043] Special Note: This cyan-green ceramic ink was printed in a single channel at 100% grayscale on pure low-zirconium ultra-white slip. After firing, the color Lab values ​​were: L: 52, a: -32, b: -6. The cyan-green color is pure and meets the development requirements of the Dunhuang stone green series.

[0044] (4) Green-promoting glaze: The green-promoting glaze formula consists of the following components by weight: 32 parts high-zinc low-temperature frit, 28 parts fused silica, 17 parts quartz powder, 14 parts silica, and 9 parts kaolin; the chemical composition of the green-promoting glaze, by weight percentage, consists of the following components: SiO2 60.5%, Al2O3 9.1%, CaO 12.1%, MgO 2.2%, K2O 4.3%, Na2O 0.5%, and ZnO 11.3%. The green-promoting glaze is applied by spraying, with a glaze specific gravity of 1.15–1.16 and a glaze application rate of 202–205 g / m³. 2 ;

[0045] The high-zinc low-temperature frit is a frit with a ZnO weight percentage content exceeding 10%, an initial melting temperature of 800-900℃, a high zinc content, and a low firing temperature. The chemical composition of the high-zinc low-temperature frit consists of the following components by weight percentage: SiO2 60.5%, Al2O3 9.1%, CaO 12.1%, MgO 2.2%, K2O 4.3%, Na2O 0.5%, and ZnO 11.3%.

[0046] The preparation method of the greening-promoting glaze is as follows: The high-zinc low-temperature frit, fused silica, quartz powder, and kaolin materials in the greening-promoting glaze formula are proportioned, with the addition of 0.15 parts sodium carboxymethyl cellulose, 0.5 parts sodium tripolyphosphate, and 40 parts water. The mixture is ball-milled until a residue of 0.2-0.4% remains on a 325-mesh sieve, and then set aside. Silica is added at the glazing site via hydration at a ratio of 1:5 (silica:water). Silica is slowly added to the water using a stirring pump until no lumps form, resulting in a colloidal substance. This colloidal substance, in an equal proportion of dry silica in the formula, is added to the glaze formula and stirred continuously until homogeneous.

[0047] Special note: When producing products with darker colors and larger ink volume, an ink removal agent can be added to the green glaze to avoid glaze avoidance defects. The ink removal agent is a water- and oil-compatible surfactant mainly composed of fatty alcohol polyoxyethylene ether.

[0048] In the formulation of green glaze, the amounts of fused silica and quartz powder should be adjusted according to the kiln firing temperature and firing time. Increasing the amount of fused silica can help form a eutectic and reduce the amount of free quartz caused by excessive introduction of quartz powder, which can lead to instability in the glaze formulation. For the silica, a hydrophilic type with a specific surface area of ​​260 m² is selected. 2 / g, with high specific surface area, high dispersibility and reactivity, hydrophilic silica is a key material for promoting the color of cyan-green ceramic ink in practical applications;

[0049] (5) Apply protective glaze: Select the surface gloss and texture of the product based on the development of green products, which can be dry granule glaze, matte or glossy protective glaze;

[0050] (6) High-temperature firing: The maximum firing temperature is 1160℃, and the firing cycle is 65 minutes.

[0051] This embodiment also includes a Dunhuang mural-colored ceramic slab prepared by the aforementioned method for preparing Dunhuang mural-colored ceramic slabs.

[0052] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A Dunhuang murals stone green ceramic rock plate preparation method, characterized by, It comprises the following steps:

1. Pressing the blank; 2. Low zirconium series super white cosmetic clay: the low zirconium series super white cosmetic clay formula is composed of the following components by weight: water washed kaolin 5-8 parts, black mud 2-5 parts, glass frit 15-20 parts, diopside 0-2 parts, quartz powder 0-2 parts, barium-based frit 2-5 parts, ultra-fine quartz powder 10-15 parts, zirconium white frit 10-20 parts, calcined alumina powder 6-10 parts, zirconium silicate 1-3 parts, potassium feldspar 10-15 parts, nepheline powder 5-8 parts, ball clay 10-15 parts, calcined talc 2-3 parts, sodium tripolyphosphate 0.5-1 part, sodium carboxymethyl cellulose 0-0.5 part; 3. Inkjet printing: the color ink is mainly composed of cyan, blue, brown, wrapped yellow, red and black; 4. Promoting green glaze: the promoting green glaze formula is composed of the following components by weight: high-zinc low-temperature frit 30-35 parts, fused quartz 20-28 parts, quartz powder 17-20 parts, white carbon black 10-15 parts, kaolin 8-12 parts; 5. Applying protective glaze: according to the development of green products, the surface gloss and texture of the products are selected, which are dry particle glaze, matte or bright protective glaze; 6. High temperature firing.

2. The method for preparing Dunhuang mural-colored ceramic slabs according to claim 1, characterized in that, The low zirconium series super white cosmetic clay in step 2 is further composed of the following components by weight: water washed kaolin 6 parts, black mud 3 parts, glass frit 18 parts, diopside 2 parts, quartz powder 2 parts, barium-based frit 4 parts, ultra-fine quartz powder 12 parts, zirconium white frit 15 parts, calcined alumina powder 6 parts, zirconium silicate 3 parts, potassium feldspar 10 parts, nepheline powder 7 parts, ball clay 10 parts, calcined talc 2 parts, sodium tripolyphosphate 0.6 parts, sodium carboxymethyl cellulose 0.3 parts; The chemical composition of the low zirconium series super white cosmetic clay is composed of the following components by weight percentage: SiO2 62.47%, Al2O3 22.95%, Fe2O3 0.15%, CaO 1.76%, MgO 2.13%, K2O 4.34%, Na2O 1.68%, ZrO2 2.92%, BaO 1.60%.

3. The method for preparing green ceramic slabs based on the Dunhuang murals according to claim 1, characterized in that, The chemical composition of the glass frit in step 2 is composed of the following components by weight percentage: SiO2 68.51%, Al2O3 13.82%, Fe2O3 0.10%, CaO 3.15%, MgO 1.21%, K2O 9.68%, Na2O 1.38%, B2O3 2.15%; The chemical composition of the barium-based frit is composed of the following components by weight percentage: SiO2 38.12%, Al2O3 15.46%, Fe2O3 0.01%, CaO 1.27%, MgO 2.17%, K2O 0.23%, Na2O 3.38%, BaO 39.36%. The chemical composition of the zircon white frit consists of the following components in percentage by weight: SiO2 61.24%, Al2O3 10.15%, Fe2O3 0.14%, CaO 12.18%, MgO 3.05%, K2O 4.07%, Na2O 1.15%, ZrO2 5.44%, ZnO 2.13%, and LOI 0.45%.

4. The method according to claim 1, wherein the ceramic rock plate is prepared in a green color system of Dunhuang murals. The low-zirconium series ultra-white cosmetic clay in step 2 is applied by a glaze dripping method, the application density is 1.76-1.91, and the application amount is 400-550 g / m 2 .

5. The method according to claim 1, wherein the ceramic rock plate is prepared in a green color system of Dunhuang murals. The greenish-blue ink formula of step 4 is composed of the following components by weight parts: greenish-blue ceramic ink base powder 42 parts, resin-based solvent 45 parts, humectant 5 parts, dispersant 5 parts, surfactant 3 parts, wherein the chemical composition of the greenish-blue ceramic ink base powder is composed of the following components by weight percentage: SiO2 23.29%, Al2O3 5.73%, ZrO2 31.31%, CaO 3.07%, Cr2O3 25.76%, CoO 5.05%, Pr6O 11 3.03%, Na2O 1.82%, Fe2O3 0.05%, MgO 0.84%, LOI 0.05%.

6. The method according to claim 1, wherein the ceramic rock plate is greenish Dunhuang murals. The high-zinc low-temperature frit of step ⑷ consists of the following components in parts by weight: high-zinc low-temperature frit 32 parts, fused quartz 28 parts, quartz powder 17 parts, and white carbon black 14 parts.

7. The method according to claim 1, wherein the ceramic rock plate is greenish Dunhuang murals. The chemical composition of the high-zinc low-temperature frit of step ⑷ consists of the following components in percentage by weight: SiO2 60.5%, Al2O3 9.1%, CaO 12.1%, MgO 2.2%, K2O 4.3%, Na2O 0.5%, and ZnO 11.3%.

8. The method according to claim 1, wherein the ceramic rock plate is greenish Dunhuang murals. The preparation method of the green-promoting glaze of step ⑷ is as follows: the high-zinc low-temperature frit, fused quartz, quartz powder, and kaolin in the green-promoting glaze formula are proportioned, and auxiliary materials carboxymethyl cellulose sodium 0.15 parts and sodium tripolyphosphate 0.5 parts are added, and then 40 parts of water is added, and ball milling is performed to 0.2-0.4% residue on a 325 mesh sieve, and then the mixture is used; the white carbon black is added in a hydrated manner on site, and the hydrated ratio is white carbon black: water = 1:5, and a stirring pump is used to slowly add the white carbon black in water and stir until there are no lumps and the mixture is a colloidal substance; the colloidal substance with the same dry material ratio of white carbon black in the formula is added to the glaze formula, and the mixture is stirred until uniform, and then a green-promoting glaze slurry ready for use is obtained.

9. The method according to claim 1, wherein the ceramic rock plate is greenish Dunhuang murals. The green-promoting glaze of step ⑷ is applied in the form of spray glaze, and the application density is 1.15-1.18, and the application amount is 200-220 g / m².

10. A Dunhuang wall painting stone green ceramic rock plate, characterized in that, The Dunhuang murals stone green ceramic rock plate prepared by the method of any one of claims 1-9. The Dunhuang murals stone green ceramic rock plate prepared by the method of any one of claims 1-9.