Unyielding Gold Granules, Unyielding Gold Granular Glaze, Marble Tiles and Their Preparation Methods

Abstract

The present invention discloses a tungsten carbide dry granule, a tungsten carbide dry granule glaze, a marble tile and a preparation method thereof, relating to the technical field of ceramics. The raw materials of the tungsten carbide dry granule are melted, quenched with water, broken and sieved to form the tungsten carbide dry granule, which is applied to the glaze. After firing, a tungsten carbide decorative effect with colorful luster is formed on the glaze surface, enriching the decorative effects of the existing tungsten carbide glaze and marble tile.

Description

Technical Field

[0001] The present invention relates to the field of ceramic technology, and particularly relates to a black gold dry granule, a black gold dry granule glaze, a marble tile and a preparation method thereof. Background Art

[0002] Traditional Jingdezhen black gold glaze is mainly made from black gold clay containing 13.4% iron. In this black gold clay, not only is the iron oxide content extremely high, but it also contains color-forming elements such as manganese and cobalt, and is usually fired under a slow-burning and heat-preserving reducing atmosphere at a high temperature of 1300 - 1330°C. The decorative effect of the existing black gold glaze mainly presents a single luster at different angles, and the decorative effect of the black gold glaze can still be enriched. Summary of the Invention

[0003] The main object of the present invention is to propose a black gold dry granule, after the raw material components are prepared, the formed crystals can form a black gold decorative effect with colorful luster on the glaze surface, adding a new decorative effect to the development of black gold glaze.

[0004] To achieve the above object, the present invention proposes a black gold dry granule, which includes the following raw materials by weight percentage: albite: 8 - 10%, sodium carbonate: 5 - 10%, zinc oxide: 5 - 15%, brown fused alumina: 1 - 6%, boric acid: 3 - 6%, limonite: 10 - 15%, ball clay: 5 - 10%, fluorite: 7 - 10%, quartz: 14 - 18%, dolomite: 4 - 8% and copper oxide: 1 - 2%.

[0005] The black gold dry granule raw materials with the above composition are melted, cooled, crushed and sieved to form black gold dry granules. The feldspar, quartz, and brown fused alumina (usually stable at a high temperature above 2000°C) in the formula react with limonite and copper oxide under the action of a eutectic mixture to form cuproferrite crystals, which can form a colorful luster on the glaze surface. It not only has a dense structure, high stability, and is not easy to discolor, but also has a low porosity and few pore defects. Incorporating zinc oxide into the cuproferrite crystals not only helps to reduce the firing melting point of the black gold dry granules, but also forms effective antibacterial ions attached to the surface of the dry granules, which is beneficial to improving the antibacterial effect of the glaze surface.

[0006] The present invention provides a black gold dry granule, which is applied to the glaze and obtains a black gold decorative effect with colorful luster on the glaze surface after firing, enriching the decorative effects of the existing black gold glaze and marble tiles.

[0007] Preferably, the weight percentage of the zinc oxide is 10 - 15%. Within this preferred range, the balance between cost and antibacterial effect is achieved, and the antibacterial effect is better.

[0008] Preferably, the copper oxide is copper oxide powder with a mesh size of 180 - 325, and the copper oxide powder is wrapped on the surface of particles obtained by quenching and crushing the mixture of other raw materials after melting. The particle size of the particles is 60 - 200 mesh. Generally, the particles obtained by quenching and crushing are first coated with an adhesive, and then mixed with copper oxide powder. Compared with the dry particles obtained by conventional melting, cooling, crushing and sieving, after being melted, heat-preserved, cooled and crushed into dry particles by this preparation step and then wrapped on the dry particles, it is easier to fuse and wrap, and the obtained decorative effect is more obvious.

[0009] In a specific embodiment, a method for preparing the black gold dry particles includes the following steps:

[0010] (1) Other raw materials except copper oxide are melted at a high temperature of 1450 - 1550 °C according to the raw material ratio of the black gold dry particles, heat-preserved for 3 - 5 hours, and quenched and crushed through screening with water below 5 °C to form dry particles with a mesh size of 60 - 200;

[0011] (2) The dry particles are added to methyl cellulose water with a solute weight percentage of 10 - 30% and stirred for 1 - 2 hours, and then mixed and wrapped with copper oxide powder;

[0012] (3) Bake at 200 - 230 °C to form the black gold dry particles with uniformly bonded copper oxide powder.

[0013] Compared with the dry particles obtained by conventional melting, cooling, crushing and sieving, after being melted, heat-preserved, cooled and crushed into dry particles by this preparation step, first add methyl cellulose water and stir, then roll and bond with copper oxide powder and bake to form black gold dry particles with uniformly bonded copper oxide powder. If the cooling temperature is higher than this range, it is easy to have uneven cooling, and the transparency of the obtained particles is not high.

[0014] The present invention provides a black gold dry particle glaze, and the raw material uses the black gold dry particles described in the foregoing solution. Applying this black gold dry particle glaze to tiles or other ceramic products can obtain a black gold decorative effect with colorful luster formed on the glaze surface after firing.

[0015] Preferably, the dry material composition of the black gold dry particle glaze, calculated by weight percentage, includes the following raw materials:

[0016] Lithium porcelain stone: 10 - 25%, zinc oxide: 10 - 15%, the black gold dry particles: 16 - 22%, limestone: 5 - 7%, fluorite: 11 - 16%, barium carbonate: 2 - 7%, potassium feldspar: 12 - 17%, ball clay: 6 - 9% and strontium carbonate: 12 - 17%.

[0017] Using the dry material composition of the black gold dry particle glaze with the above components is beneficial to reducing the firing temperature range and realizing firing in an oxidizing atmosphere in the subsequent firing step. It breaks through the limitations of traditional black gold glaze on the firing atmosphere (reducing atmosphere) and the firing temperature range (1300 - 1330 °C).

[0018] The present invention also provides a method for preparing marble tiles, comprising the following preparation steps:

[0019] S1: A green body is prepared from ceramic blank raw materials and dried for later use;

[0020] S2: Apply a surface glaze;

[0021] S3: Screen-print or roll-press the above-mentioned tungsten gold dry granule glaze according to a preset pattern;

[0022] S4: Fire.

[0023] The marble tiles prepared by this solution correspondingly have the beneficial effects corresponding to the above-mentioned solutions, which will not be elaborated here.

[0024] Preferably, the tungsten gold dry granule glaze includes a dry material component and a glaze-forming auxiliary material, and the weight ratio of the dry material component to the glaze-forming auxiliary material is 1:1;

[0025] The dry material component, by weight percentage, includes the following raw materials:

[0026] Lithium porcelain stone: 10-25%, zinc oxide: 10-15%, the above-mentioned tungsten gold dry granule: 16-22%, limestone: 5-7%, fluorite: 11-16%, barium carbonate: 2-7%, potassium feldspar: 12-17%, ball clay: 6-9% and strontium carbonate: 12-17%;

[0027] The glaze-forming auxiliary material, by weight percentage, includes: printing paste: 60-70%, printing oil: 15-25% and water: 15-20%.

[0028] Generally, the proportion of printing paste and printing oil in the glaze-forming auxiliary material is 1:4-6, and the ratio of the dry material component to water is 1:0.5-0.8. However, this technical solution uses a lower amount of water and a large proportion of printing paste, which is prone to problems such as affecting the quality of the glaze surface and possible agglomeration in conventional glazes. However, after the glaze-forming auxiliary material in this solution is mixed with the dry material component, the obtained tungsten gold dry granule glaze slurry has better dispersibility, is not prone to agglomeration, and maintains better glaze surface quality after firing.

[0029] Further preferably, the present invention provides a method for preparing marble tiles. The surface glaze in step S2 is a tungsten gold surface glaze, which, by weight percentage, includes the following raw materials:

[0030] Lithium feldspar: 28-50%, kaolin: 10-15%, quartz: 5-10%, wollastonite: 5-10%, calcined kaolin: 5-10%, zinc oxide: 1-2%, barium carbonate: 5-10% and zirconium silicate: 10-15%,

[0031] In step S4, the firing temperature is 1170 - 1190 °C, and the firing duration is 55 - 65 min;

[0032] Using the aforementioned black gold surface glaze and black gold dry granule glaze in combination is beneficial for firing in an oxidation atmosphere by means of medium - temperature rapid firing.

[0033] Preferably, after step S2, there is also a step of ink - jetting to form a pattern layer.

[0034] Preferably, after step S1, the green body dried in step S1 is wetted with water so that the surface of the green body contains 5 - 8% moisture. To further ensure the decorative effect, if the moisture content of the green body surface is too high or too low, it is not conducive to the effective adhesion of the glaze on the green body surface, thus affecting the black gold decorative effect of the glaze surface.

[0035] The present invention provides marble tiles, which are prepared by using the preparation method of marble tiles described in any of the foregoing solutions. Thus, it has the beneficial effects of the foregoing solutions, which will not be elaborated here.

[0036] Compared with the prior art, the present invention provides a black gold dry granule, which is applied to the glaze and forms a black gold decorative effect with colorful luster on the glaze surface after firing, enriching the decorative effects of the existing black gold glaze and marble tiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0038] Figure 1 It is a magnified 100 - fold glaze surface texture diagram in the screen - printing embodiment of the marble tiles of the present invention;

[0039] Figure 2 It is a black gold decorative effect diagram of the colorful luster of the glaze surface of the marble tiles of the present invention.

[0040] The realization of the purpose of the present application, functional features and advantages will be further described in combination with the embodiments and with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The following is an example of a method for preparing marble tiles to illustrate the technical solution of the present invention. In the following examples and comparative examples, raw materials, reagents, etc. without special instructions are all commercially available, and the same batch of raw materials or reagents are used in the examples and comparative examples; the preparation methods without special conditions are all prepared by conventional, well-known preparation methods.

[0043] Example 1

[0044] The specific example in Example 1 refers to this preparation method, comprising the following steps:

[0045] S1. The green body is pressed using conventional ceramic green body raw materials, dried and set aside;

[0046] S2. The green body after drying in step S1 is moistened with water so that the surface of the green body contains 5-8% moisture;

[0047] S3. The conventional transparent glaze after ball milling is evenly applied to the body obtained in step S2 and set aside;

[0048] S4. Prepare the materials according to the weight percentage of each raw material of the black gold dry glaze, mix them thoroughly and then perform ball milling, screen print the glaze layer according to the preset pattern, and apply the ball-milled black gold marble dry glaze mixture evenly through the large screen device to the body obtained in step S3 for standby use;

[0049] The Wujin dry granular glaze is mixed with the glaze auxiliary materials, and ball-milled for 26 minutes per 100g. The obtained Wujin dry granular glaze mixture is sieved through a 325-mesh screen for standby use;

[0050] Specifically, the Wujin dry granules include the following raw materials by weight percentage:

[0051] Albite: 10%, sodium carbonate: 9%, zinc oxide: 11%, brown fused alumina: 5%, boric acid: 6%, limonite: 15%, ball clay: 10%, fluorite: 10%, quartz: 18%, dolomite: 4%, copper oxide: 2%. All raw materials are melted at a high temperature of 1500 °C, quenched with water at a low temperature to form frit, and then crushed and screened to obtain 60 - 200 mesh black gold dry granules.

[0052] S5. The green body obtained in step S4 is calcined at a high temperature in a kiln and then polished to obtain a black gold marble dry granule glaze marble tile. In specific examples 1 - 1 to 1 - 3, it is fired in an oxidizing atmosphere, the firing temperature is 1200 - 1220 °C, and the firing duration is 65 - 80 min. When the firing temperature is higher, the corresponding firing duration is shortened, and technicians can make corresponding adjustments.

[0053] Among them, for the composition of the black gold dry granule glaze in the specific examples of Example 1, refer to the following:

[0054] Example 1 - 1

[0055] Black gold dry granule glaze, the black gold dry granule glaze includes dry material components and glaze - forming auxiliary materials, and the weight ratio of the dry material components to the glaze - forming auxiliary materials is 1:1.

[0056] The dry material components, by weight percentage, include the following raw materials: lithium porcelain stone: 25%, zinc oxide: 10%, black gold dry granules: 16%, limestone: 5%, fluorite: 11%, barium carbonate: 3%, potassium feldspar: 12%, ball clay: 6% and strontium carbonate: 12%.

[0057] The glaze - forming auxiliary materials, by weight percentage, include: printing paste: 60%, printing oil: 20% and water: 20%.

[0058] Example 1 - 2

[0059] Black gold dry granule glaze, the black gold dry granule glaze includes dry material components and glaze - forming auxiliary materials, and the weight ratio of the dry material components to the glaze - forming auxiliary materials is 1:1.

[0060] The dry material components, by weight percentage, include the following raw materials: lithium porcelain stone: 20%, zinc oxide: 10%, black gold dry granules: 17%, limestone: 5%, fluorite: 12%, barium carbonate: 5%, potassium feldspar: 12%, ball clay: 6% and strontium carbonate: 13%.

[0061] The glaze - forming auxiliary materials, by weight percentage, include: printing paste: 70%, printing oil: 15% and water: 15%.

[0062] Example 1 - 3

[0063] Black gold dry granule glaze, the black gold dry granule glaze includes dry material components and glaze - forming auxiliary materials, and the weight ratio of the dry material components to the glaze - forming auxiliary materials is 1:1.

[0064] The dry material composition, in terms of weight percentage, includes the following raw materials: lithium porcelain stone: 18%, zinc oxide: 11%, black gold dry particles: 18%, limestone: 5%, fluorite: 13%, barium carbonate: 4%, potassium feldspar: 12%, ball clay: 6% and strontium carbonate: 13%.

[0065] The glaze auxiliary materials, calculated by weight percentage, include: printing paste: 66%, printing oil: 15% and water: 19%.

[0066] Comparative Example 1

[0067] The specific preparation method of the marble tile is roughly the same as that of Example 1-2, except that no limonite is added to the raw material components of the black gold dry particles, and other raw material components are adaptively adjusted in proportion.

[0068] The performance test items of the specific embodiments and the specific comparative examples were tested, and the corresponding effects are shown in the following table:

[0069] Table 1

[0070]

[0071] Performance test project description:

[0072] The decorative effect is obtained by technicians observing the glaze decorative effect from different angles at close range under sufficient light conditions;

[0073] Antibacterial effect: Apply roughly equal initial amounts of Escherichia coli and Staphylococcus aureus to the surface of the tested marble tile, test the residual amount of Escherichia coli and Staphylococcus aureus after 168 hours, record the initial amount of bacteria and the residual amount of bacteria, and calculate the sterilization rate. The formula for calculating the sterilization rate is: (initial amount - residual amount) / initial amount * 100%.

[0074] The quality of the glaze is obtained by technicians observing the glaze at close range under sufficient light conditions. When no pores can be observed with the naked eye, the glaze quality is good; when individual pores can be observed with the naked eye, the glaze quality is average; when a large number of pores can be observed clustered together with the naked eye, the glaze quality is poor.

[0075] Dispersion effect: During the preparation process, technicians observed the dispersion effect of the Wujin dry granule glaze and the degree of agglomeration: good dispersion with no agglomeration; general dispersion with a little agglomeration; poor dispersion with obvious agglomeration.

[0076] It can be seen from the above data that Examples 1-1 to 1-3 use the black gold dry granular glaze of the present application to prepare marble tiles, which helps to form a black gold decorative effect with a colorful luster on the glaze surface of the marble tiles.

[0077] In Comparative Example 1, no limonite was added and no black copper-iron crystals were formed. A black gold decorative effect with a single luster at different angles was formed on the glaze surface, which was consistent with the effect of traditional black gold glaze.

[0078] Example 2

[0079] The specific preparation method is roughly the same as that of Example 1-2, except that: the glaze auxiliary materials, calculated by weight percentage, include: printing paste: 20%, printing oil: 40% and water: 40%.

[0080] Example 3

[0081] The specific preparation method of marble tiles is roughly based on Example 1-2, except that the preparation method of black gold dry particles is:

[0082] (1) According to the raw material ratio of Wujin dry particles, the raw materials except copper oxide are melted at a high temperature of 1500°C, kept warm for 4 hours, and then quenched in water at a low temperature of 3°C, crushed and sieved to form 60-200 mesh dry particles;

[0083] (2) After the dry particles are mixed with 180-325 mesh copper oxide powder, 20% by weight of solute methylcellulose water is added and stirred for 1.5 hours;

[0084] (3) Drying at 200 degrees Celsius to form black gold dry particles that are evenly bonded with copper oxide powder.

[0085] Example 4

[0086] The specific preparation method of the marble tile is roughly based on Example 1-2, with the difference being that the surface glaze uses black gold glaze.

[0087] The black gold glaze includes the following raw materials, by weight percentage: lithium feldspar: 45%, kaolin: 10%, quartz: 10%, wollastonite: 5%, burnt kaolin: 5%, zinc oxide: 1%, barium carbonate: 9% and zirconium silicate: 14%, methyl cellulose: 0.25% and sodium tripolyphosphate: 0.75%.

[0088] After mixing the dry materials of the black gold glaze, add 38% water by weight of the black gold glaze and ball mill for 18 minutes per 100g. The obtained black gold glaze mixture is sieved through a 325-mesh screen for standby use.

[0089] Specifically, in step S5, the high temperature calcination temperature is 1190°C, the calcination time is 60 minutes, and the atmosphere is oxidizing.

[0090] Example 5

[0091] The specific preparation method of the marble tiles is roughly the same as that of Example 1-2, except that: as shown in the following table, the specific content of zinc oxide in the black gold dry particles is adjusted, and the composition of other raw materials is adaptively adjusted in proportion.

[0092] Table 2

[0093]

[0094] The performance test items of specific examples and specific comparative examples are detected, and the corresponding effects are shown as follows:

[0095] Table 3

[0096]

[0097] It can be seen from the above data that in Example 2, compared with Examples 1-2, the glazing auxiliary materials are adjusted to the conventional ratio. The obtained glaze slurry of the black gold dry granule glaze mixture generally has a general dispersion performance with a little agglomeration, and the glaze surface quality is average, that is, the dispersion effect and the glaze surface quality become worse. It can be seen from the effect data of Example 2 and Examples 1-1 to 1-3 that when the glazing auxiliary materials are adjusted to the preferred ratio, that is, the weight ratio of the dry material component of the black gold dry granule glaze to the glazing auxiliary materials is 1:1, and the glazing auxiliary materials are calculated by weight percentage, including printing paste: 60-70%, printing oil: 15-25% and water: 15-20%, the obtained glaze slurry performance of the black gold dry granule glaze mixture is better, the dispersion is good without agglomeration, and the glaze surface quality after firing is better.

[0098] In Example 3, compared with Examples 1-2, the preparation method of the black gold dry granule is adjusted, and the obtained marble tile has a better molten state, better wrapping performance, and a better black gold decorative effect with colorful luster.

[0099] In Example 4, compared with Examples 1-2, the black gold surface glaze is preferably used as the surface glaze. Through the combination of the black gold surface glaze and the black gold dry granule glaze, the firing time and the firing range are further reduced. Through similar experiments, it is found that when the raw materials of the black gold surface glaze, calculated by mass percentage, include: spodumene: 28-50%, kaolin: 10-15%, quartz: 5-10%, wollastonite: 5-10%, calcined kaolin: 5-10%, zinc oxide: 1-2%, barium carbonate: 5-10% and zirconium silicate: 10-15%, when it is combined with the black gold dry granule glaze of the present application, the firing temperature can be further reduced to 1170-1190 °C, and the firing duration can be further reduced to 55-65 min.

[0100] In Example 5, compared with Examples 1-2, the specific content of zinc oxide in the black gold dry granule is adjusted. When the zinc oxide content is lower than 10 wt%, the antibacterial performance is not significantly improved, and the sterilization rates of Escherichia coli and Staphylococcus aureus are only about 70%; when the zinc oxide content is higher than 15 wt%, the antibacterial performance does not increase but decreases, and better comprehensive effects cannot be obtained. Only when the content of zinc oxide in the black gold dry granule is 10-15 wt%, the obtained glaze surface of the marble tile achieves a balance between antibacterial effect and cost, and the sterilization rate reaches more than 95%, so it has better comprehensive effects.

[0101] In summary, by using the raw materials of the tungsten carbide dry granules of the present application to prepare tungsten carbide dry granules, feldspar, quartz, and brown fused alumina in the formula react with limonite ore and copper oxide to form copper-iron-tungsten crystals under the action of a eutectic mixture, and the crystals exhibit colorful lusters at different angles of the glaze surface. Incorporating zinc oxide into the copper-iron-tungsten crystals not only helps to lower the firing melting point of the tungsten carbide dry granules, but also forms effective antibacterial ions attached to the surface of the dry granules, which is beneficial to improving the antibacterial effect of the glaze surface and can be fired in an oxidizing atmosphere, reducing the firing temperature compared with the prior art. As can be seen from the example of Comparative Example 1, when limonite ore is not added, the raw materials of the tungsten carbide dry granules fail to form copper-iron-tungsten crystals, and a tungsten carbide decorative effect with colorful lusters cannot be obtained on the glaze surface. When the zinc oxide in the tungsten carbide dry granules is preferably 10-15 wt%, the antibacterial effect of the marble tile glaze can be further improved. Through the combination of the tungsten carbide dry granule glaze and the tungsten carbide surface glaze, it is beneficial to further reduce the firing temperature to 1170-1190 °C and the firing duration to 55-65 min, achieving fast firing at medium temperature.

[0102] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. Wujin dry granules, characterized in that, The invention comprises the following raw materials by weight percentage: albite: 8-10%, sodium carbonate: 5-10%, zinc oxide: 5-15%, brown corundum: 1-6%, boric acid: 3-6%, limonite: 10-15%, ball clay: 5-10%, fluorite: 7-10%, quartz: 14-18%, dolomite: 4-8% and copper oxide: 1-2%.

2. The black gold dry granules as claimed in claim 1, characterized in that The weight percentage of the zinc oxide is 10-15%.

3. The Wujin dry granules as claimed in claim 1 or 2, characterized in that The copper oxide is 180-325 mesh copper oxide powder, which is coated on the surface of particles obtained by mixing, melting, water quenching and crushing the other raw materials, and the particle size of the particles is 60-200 mesh.

4. Black gold dry granular glaze, characterized in that: The raw material is the black gold dry granules as described in any one of claims 1 to 3.

5. The black gold dry granular glaze according to claim 4, characterized in that: The dry material components of the black gold dry granular glaze include the following raw materials in terms of weight percentage: Lithium porcelain stone: 10-25%, zinc oxide: 10-15%, the black gold dry particles: 16-22%, limestone: 5-7%, fluorite: 11-16%, barium carbonate: 2-7%, potassium feldspar: 12-17%, ball clay: 6-9% and strontium carbonate: 12-17%.

6. A method for preparing marble tiles, characterized in that: The method comprises the following preparation steps: S1: using ceramic blank raw materials to make a green body, drying and standby; S2: applying glaze; S3: Screen printing or roller rolling the black gold dry granular glaze as claimed in claim 4 or 5 according to a preset pattern; S4: Firing.

7. The method for preparing marble tiles according to claim 6, characterized in that: The black gold dry granular glaze comprises dry material components and glaze-forming auxiliary materials, and the weight ratio of the dry material components to the glaze-forming auxiliary materials is 1:1; The dry material ingredients, by weight percentage, include the following raw materials: Lithium porcelain stone: 10-25%, zinc oxide: 10-15%, the black gold dry particles: 16-22%, limestone: 5-7%, fluorite: 11-16%, barium carbonate: 2-7%, potassium feldspar: 12-17%, ball clay: 6-9% and strontium carbonate: 12-17%; The glaze auxiliary materials include, by weight percentage, printing paste: 60-70%, printing oil: 15-25% and water: 15-20%.

8. The method for preparing marble tiles according to claim 6 or 7, characterized in that: The glaze in step S2 is a black gold glaze, which comprises the following raw materials by weight percentage: Lithium feldspar: 28-50%, kaolin: 10-15%, quartz: 5-10%, wollastonite: 5-10%, burnt kaolin: 5-10%, zinc oxide: 1-2%, barium carbonate: 5-10% and zirconium silicate: 10-15%; In step S4, the firing temperature is 1170-1190° C., the firing time is 55-65 min, and the atmosphere is oxidizing.

9. Marble tiles, characterized in that, The marble tile is prepared by the method for preparing the marble tile according to any one of claims 6 to 8.

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