A kind of glossy glaze, multi-layered antique inkjet brick and its preparation method

Abstract

The present invention relates to the field of ceramic tile technology, and more particularly to a glossy glaze, a multi-layered antique inkjet brick, and a preparation method thereof. The raw materials for preparing the glossy glaze include, by mass percentage, 40% to 46% high-temperature potassium feldspar, 2% to 5% calcite, 3% to 8% black mud, 13% to 18% quartz, 20% to 26% barium carbonate, 3% to 8% raw kaolin, 3% to 8% zinc oxide, 0.2% to 0.3% sodium tripolyphosphate, and 1.3% to 1.7% carboxymethyl cellulose. The glossy glaze has an appropriate high-temperature viscosity, is good for developing ink color, and has high hardness and good wear resistance after firing. The present invention also provides a multi-layered antique inkjet brick, which is made using a glaze-throwing process and has strong layering and a good three-dimensional effect.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic tiles, in particular to a multi-layered antique inkjet tile with a glossy glaze and a preparation method thereof. Background Art

[0002] With the rapid development of large-scale inkjet technology, people's demand for artistic decoration is increasing. Antique tiles are actually glazed porcelain tiles, often used for building walls and floors. Due to their patterns and textures, they have the effect of stone veneer after a long period of use, full of the vicissitudes of time and the weight of history. Therefore, antique tiles often create a nostalgic atmosphere through the combination of styles, colors and patterns. Antique tiles evolved from colored glaze tiles. Compared with ordinary glazed tiles, their main difference is the color of the glaze.

[0003] At present, the patterns and colors of traditional antique tiles are already very rich, but they generally lack layering and three-dimensionality. The main reason is that the glossiness of the glaze of antique tiles is basically the same, and the formation of three-dimensionality and layering can only rely on the color and pattern design of the inkjet process. This results in the antique tiles imitating the traces of stone use. The effect is not good.

[0004] In addition, existing glazes such as glossy glazes have poor color development properties, resulting in instability after the ink and glaze are combined, causing the ink to break up and blur, and the color of the ink after firing does not meet expectations.

[0005] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a glossy glaze, multi-layered antique inkjet brick and a preparation method thereof, aiming to solve the technical problems in the prior art of poor color development of glaze and weak three-dimensional and layered effect of inkjet antique bricks.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The first aspect of the present invention provides a bright glaze, the raw materials for its preparation comprising, by mass percentage, 40% to 46% of high-temperature potassium feldspar, 2% to 5% of calcite, 3% to 8% of black mud, 13% to 18% of quartz, 20% to 26% of barium carbonate, 3% to 8% of raw kaolin, and 3% to 8% of zinc oxide.

[0009] The second aspect of the present invention provides a multi-layered antique inkjet brick, which includes a body layer, a bottom glaze layer, an intermediate glaze layer, a splash glaze layer and an inkjet layer arranged in sequence; the intermediate glaze layer is made of the glossy glaze described above.

[0010] The multi-layered antique inkjet bricks, wherein the raw materials for preparing the bottom glaze layer include, by mass percentage: 8% to 14% high-temperature slurry, 4% to 8% zinc oxide, 13% to 15% zirconium silicate, 10% to 15% washed mud, 5% to 8% black mud powder, 35% to 40% red potassium sand, 8% to 10% burnt earth, 1% to 4% potassium feldspar, and 2% to 8% sodium soil.

[0011] The multi-layered antique inkjet brick, wherein, calculated by mass percentage, the raw materials for preparing the high-temperature slurry include: 22% to 28% of waste materials, 15% to 20% of potassium feldspar, 13% to 18% of sodium feldspar, 8% to 12% of black mud powder, 8% to 12% of quartz, and 18% to 24% of kaolin.

[0012] The multi-layered antique inkjet bricks, wherein, calculated by mass percentage, the raw materials for preparing the glaze layer include: 23% to 30% of albite, 12% to 18% of high-temperature potassium feldspar, 10% to 15% of calcite, 5% to 8% of burned talc, 5% to 10% of black mud, 10% to 12% of burned kaolin, 2% to 5% of calcined zinc oxide, and 13% to 18% of barium carbonate.

[0013] The third aspect of the present invention provides a method for preparing an antique inkjet brick, which is used to prepare the multi-layer antique inkjet brick described above, comprising the following steps:

[0014] S001. Applying white glaze on the body layer to form a bottom glaze layer;

[0015] S002. Applying a glossy glaze to form an intermediate glaze layer;

[0016] S003. Apply matte glaze and glaze by throwing point process to form a glaze layer;

[0017] S004. Inkjet to form an inkjet layer;

[0018] S005. Firing, the firing temperature is 1225° C. to 1230° C., and the firing cycle is 50 to 55 minutes.

[0019] The method for preparing the antique inkjet brick, wherein the specific gravity of the white glaze slurry is 1.33-1.35 g / cm 3 ; The flow rate of the white glaze is 19 to 21 seconds; the flow rate of the glossy glaze is 19 to 21 seconds; the flow rate of the matte glaze is 19 to 21 seconds.

[0020] The method for preparing the antique inkjet brick, wherein the glaze slurry specific gravity of the glossy glaze is 1.33-1.35 g / cm 3 .

[0021] The method for preparing the antique inkjet brick, wherein the glaze slurry specific gravity of the matte glaze is 1.33-1.35 g / cm 3 .

[0022] The method for preparing antique inkjet bricks, wherein, in the throwing-point process, the frequency of the throwing-point cabinet is 3-7 Hz, and the speed of the conveyor belt is 14-16 cm / s.

[0023] Beneficial Effects: The first aspect of the present invention provides a glossy glaze. By adjusting the calcite and zinc oxide contents, the glossy glaze achieves an appropriate high-temperature viscosity, ensuring normal ink color development and good gloss. Furthermore, by adjusting the amount of quartz used, the glaze layer is ensured to have sufficient hardness and wear resistance.

[0024] The second aspect of the present invention provides a multi-layered antique inkjet brick, which includes a body layer, a bottom glaze layer, an intermediate glaze layer, a throwing glaze layer and an inkjet layer arranged in sequence, wherein the intermediate glaze layer is made of the glossy glaze described above. By combining the intermediate glaze layer, the throwing glaze layer and the inkjet layer, the intermediate glaze layer can have both concave and convex textures and color depth changes, which is rich in layering and three-dimensional sense.

[0025] A third aspect of the present invention provides a method for producing the aforementioned multi-layered antique inkjet bricks. The method first sequentially applies a base glaze and a glossy glaze to the base layer, then applies a matte glaze using a spraying technique, and finally, inkjet firing. The combination of the glossy and matte glazes creates an antique inkjet brick with varying gloss levels and a strong sense of layering. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a physical picture of Example 1.

[0027] Figure 2 This is a physical picture of Comparative Example 1.

[0028] Figure 3 This is a physical picture of Comparative Example 2. DETAILED DESCRIPTION

[0029] The present invention provides a multi-layered, glossy, antique-style inkjet brick and a method for preparing the same. To clarify the objectives, technical solutions, and effects of the present invention, the present invention is further described below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0030] The first aspect of the present invention provides a bright glaze, the raw materials for its preparation comprising, by mass percentage, 40% to 46% of high-temperature potassium feldspar, 2% to 5% of calcite, 3% to 8% of black mud, 13% to 18% of quartz, 20% to 26% of barium carbonate, 3% to 8% of raw kaolin, and 3% to 8% of zinc oxide.

[0031] Compared with existing glossy glazes, the glossy glaze provided by the present invention can well maintain the stability of inkjet ink in the glaze without the phenomenon of being scattered and blurring; moreover, this formula has excellent color development ability for ink, the surface of the glaze is smooth, the feel is delicate, and the anti-fouling ability is strong.

[0032] Specifically, the calcite and zinc oxide content in the glossy glaze cannot be too high. Excessive calcite and zinc oxide content will reduce its high-temperature viscosity. When making multi-layered antique inkjet tiles, this will dissolve the upper glaze layer, making the product lack layering and three-dimensionality. It will also corrode the ink, causing the ink to have a poor color and affecting the surface gloss of the product. The quartz content cannot be too low. Quartz is the skeleton of ceramics. Too little quartz will make the product's hardness and wear resistance unacceptable.

[0033] A second aspect of the present invention provides a multi-layered antique inkjet tile, comprising a body layer, a base glaze layer, an intermediate glaze layer, a glaze layer, and an inkjet layer, arranged in sequence; the intermediate glaze layer is made from the aforementioned glossy glaze. The use of the glossy glaze ensures the uneven effect of the glaze layer and the color of the ink, giving the multi-layered antique inkjet tile a strong sense of layering and a good three-dimensional effect.

[0034] Preferably, the glaze layer is a matte glaze layer. In this embodiment, the surface of the multi-layered antique inkjet brick is an old inkjet matte, exuding a sense of fashion brought by retro, simple and elegant without losing its exquisiteness, and the size of the brick is visually expanded on the surface.

[0035] Preferably, the raw materials for preparing the base glaze layer include, by mass percentage, 8% to 14% high-temperature slurry, 4% to 8% zinc oxide, 13% to 15% zirconium silicate, 10% to 15% washed mud, 5% to 8% black mud powder, 35% to 40% red potassium sand, 8% to 10% burnt earth, 1% to 4% potassium feldspar, and 2% to 8% sodium soil. The base glaze layer is formulated as a white glaze with a high whiteness that can effectively improve the color development effect of inkjet inks. The formula contains high-temperature slurry, which can ensure a smooth glaze surface and avoid defects such as ripples. It is characterized by high glaze hardness, high high-temperature viscosity, a large thermal expansion coefficient, and low transparency. It also serves as a base for the intermediate glaze layer to ensure overall whiteness.

[0036] Specifically, the base glaze formula should contain a low content of high-temperature slurry and fired clay. Excessive amounts will result in excessively high viscosity, hindering the bonding between the base and glaze, and causing defects such as raw glaze cracking. The zirconium silicate content should also be moderate, as base glaze is a cosmetic soil that conceals blemishes. Zirconium silicate increases the whiteness of the base glaze, allowing it to cover the base and enhance the color of the ink.

[0037] Specifically, the raw materials for preparing the high-temperature slurry include, by mass percentage, 22% to 28% waste materials, 15% to 20% potassium feldspar, 13% to 18% sodium feldspar, 8% to 12% black mud powder, 8% to 12% quartz, and 18% to 24% kaolin. The waste materials can be used tailings or waste mud obtained after sedimentation treatment of wastewater.

[0038] Preferably, the raw materials for preparing the throwing-point glaze layer include, by mass percentage: 23% to 30% sodium feldspar, 12% to 18% high-temperature potassium feldspar, 10% to 15% calcite, 5% to 8% burned talc, 5% to 10% black mud, 10% to 12% burned kaolin, 2% to 5% calcined zinc oxide, and 13% to 18% barium carbonate. The formula of the throwing-point glaze layer is an improved matte glaze. The effect of conventional matte glaze is not ideal, and it is easy to cause the blue-purple color to be unstable in inkjet printing. The improved matte glaze is adjusted by adding feldspar, which can make the blue tone turn green and stable, thereby promoting the product effect. In addition, the formula also contains a large amount of calcium and barium, which makes the glaze surface smooth and has strong anti-fouling ability. When forming a multi-layered glaze effect with the middle glaze layer, it will not hide dirt and is easy to clean.

[0039] Furthermore, the matte glaze must contain a low content of feldspar and calcite, otherwise its high-temperature viscosity will decrease, increasing its fluidity during firing and melting into the glossy glaze. Excessive feldspar and calcite content will also result in the matte glaze's glossiness approaching that of the glossy glaze, failing to create a contrast and severely impacting the layering effect. It will also result in the product's glossiness being too high, exceeding the gloss range required for antique tiles. Black mud and burnt clay are the primary sources of alumina in matte glaze. Too little alumina results in too low a high-temperature viscosity, increasing the product's glossiness and making the glaze layer more fluid, making it prone to defects such as glaze flow during firing. Excessive alumina will cause the glaze slurry to be fired at too high a temperature, significantly reducing the gloss, failing to meet the gloss requirements for antique tiles, and causing a raw burn, which can affect the ink's color.

[0040] The third aspect of the present invention provides a method for preparing an antique inkjet brick, which is used to prepare the multi-layer antique inkjet brick described above, comprising the following steps:

[0041] S001. Applying white glaze on the body layer to form a bottom glaze layer;

[0042] S002. Applying a glossy glaze to form an intermediate glaze layer;

[0043] S003. Apply matte glaze and glaze by throwing point process to form a glaze layer;

[0044] S004. Inkjet to form an inkjet layer;

[0045] S005. Firing, the firing temperature is 1225° C. to 1230° C., and the firing cycle is 50 to 55 minutes.

[0046] Specifically, in S003, ink glazing is performed after the dot-throwing process, which can make the top of the dot-throwing smooth and the gloss transition between the glossy glaze and the matte glaze natural.

[0047] Preferably, the glaze slurry specific gravity of the white glaze is 1.33-1.35 g / cm 3 .

[0048] Preferably, the glaze slurry specific gravity of the glossy glaze is 1.33-1.35 g / cm 3 .

[0049] Preferably, the glaze slurry specific gravity of the matte glaze is 1.33-1.35 g / cm 3 The specific gravity of matte glaze cannot be too high. If the specific gravity of matte glaze is too high, the dots will be too protruding, and the combination of the glaze layer and the middle glaze layer will be unnatural, affecting the layering effect. The frequency of brushing should not be too high. If the frequency of brushing is too high, the dots will be smaller, the surface effect will be more fragmented, and the effect will not change naturally.

[0050] In the present invention, by strictly controlling the specific gravity of each glaze slurry, it is possible to ensure that each glaze layer is tightly bonded, thereby avoiding precipitation and not affecting the inkjet effect.

[0051] Preferably, in the throwing-off process, a throwing-off cabinet is used for the throwing-off operation, the frequency of the throwing-off cabinet is 3 to 7 Hz, and the speed of the conveyor belt is 14 to 16 cm / s.

[0052] The three glazes required by the present invention do not require color adjustment, and the pattern display is completed by inkjet technology. The three glazes can directly adjust the glaze slurry parameters and glaze. The white glaze (used for the bottom glaze layer) needs to have a certain viscosity, otherwise it is easy to produce spots, and the glazing must be uniform and smooth, otherwise it is easy to affect the glaze surface of the entire product. The same is true for the glossy glaze (used for the middle glaze layer); in the most critical throwing point process, the glaze slurry ratio of the matte glaze is 1.35g / cm 3 This will make the glaze layer smoother, effectively reducing the subsequent grinding process, and finally the inkjet printing can be carried out. During firing, the product will produce different color changes due to the different color-developing abilities of the middle glaze layer and the glaze layer. The color of the glossy glaze is darker, and the matte glaze is lighter. Together with the inkjet pattern, it creates an antique brick-like effect.

[0053] Specifically, the preparation of the green body layer includes the following steps:

[0054] (1) Grinding raw materials: Grind each raw material and pass it through a 10-mesh sieve;

[0055] (2) Batching and ball milling: Prepare the raw materials according to the set ratio, transfer the prepared powder to the ball mill through the batching machine, add water to the mixture until the water content is 18% by weight, and start the ball mill to grind to the calibrated fineness;

[0056] (3) Mud homogenization: put the mud of qualified fineness into the mud pool and stir it evenly;

[0057] (4) Spray drying: The homogenized slurry is pumped into the drying tower by a slurry pump. The atomizer atomizes the slurry into fine droplets, which are dried and dehydrated by the hot air (400℃~600℃) in the drying tower to form powder particles. The particles flow out through the discharge port, and the air containing fine powder and water vapor is collected by the bag dust collector, and then discharged from the exhaust fan after dust removal in a water bath.

[0058] (5) Silo aging: The powder enters the silo through the conveying system and is placed for a suitable period of time to further homogenize the moisture content of the powder; the moisture content of the powder is 5.6% to 6.2%; the particle size distribution of the powder is <1% for 20 mesh and above, 15% to 25% for 20-40 mesh, 40% to 50% for 40-60 mesh, and 15% to 20% for 60-80 mesh;

[0059] (6) Powder molding: The powder is transported to the press for molding. When pressure is applied to the blank, the powder particles are squeezed by the pressure and begin to move and move closer to each other. The blank shrinks and the air is expelled to form a blank layer. The maximum pressure during pressing is 160 bar and the thickness of the blank layer is 10 mm.

[0060] Example 1

[0061] A multi-layer antique inkjet brick, the preparation method of which comprises the following steps:

[0062] S001. Applying white glaze on the body layer to form a bottom glaze layer;

[0063] The raw materials for preparing the white glaze include, by mass percentage, 14% high-temperature slurry, 6% zinc oxide, 14% zirconium silicate, 10% washed mud, 6% black mud powder, 35% red potash sand, 8% burnt earth, 4% potassium feldspar, and 3% sodium earth;

[0064] The specific gravity of white glaze is 1.35g / cm 3 , flow rate 19s, glaze layer 0.34mm;

[0065] S002. Applying a glossy glaze to form an intermediate glaze layer;

[0066] The raw materials for preparing the glossy glaze include, by weight percentage, 45% high-temperature potassium feldspar, 2% calcite, 5% black mud, 15% quartz, 23% barium carbonate, 5% raw kaolin, and 5% zinc oxide. When preparing the glossy glaze, sodium tripolyphosphate and 1.6% carboxymethyl cellulose are added in an amount of 0.4% by weight of the total weight of the raw materials.

[0067] The glaze slurry density of the glossy glaze is 1.35g / cm3, the flow rate is 20s, and the glaze layer is 0.22mm;

[0068] S003. Apply matte glaze and glaze by throwing point process to form a glaze layer;

[0069] The raw materials for preparing the matte glaze include, by mass percentage, 25% sodium feldspar, 15% high-temperature potassium feldspar, 12% calcite, 8% burned talc, 10% black mud, 12% burned kaolin, 3% calcined zinc oxide, and 15% barium carbonate; when preparing the matte glaze, sodium tripolyphosphate and 1.6% carboxymethyl cellulose need to be added in an amount of 0.4% by weight of the total weight of the raw materials;

[0070] The glaze slurry density of matte glaze is 1.34g / cm 3 , flow rate 20s, frequency of the rejection cabinet is 5Hz, and belt speed is 15cm / s;

[0071] S004. Inkjet to form an inkjet layer;

[0072] S005. Firing: the firing temperature is 1230° C., and the firing cycle is 50 minutes.

[0073] Example 2

[0074] A multi-layer antique inkjet brick, the preparation method of which differs from that of Example 1 in that:

[0075] The formula of white glaze is different. Calculated by mass percentage, the raw materials for preparing the white glaze include: 14% high-temperature slurry, 6% zinc oxide, 14% zirconium silicate, 10% washed mud, 6% black mud powder, 35% red potassium sand, 8% burnt earth, 4% potassium feldspar, and 3% sodium soil.

[0076] Example 3

[0077] A multi-layer antique inkjet brick, the preparation method of which differs from that of Example 1 in that:

[0078] The formula of the glossy glaze is different. The raw materials for preparing the glossy glaze include, by mass percentage: 42% high-temperature potassium feldspar, 3% calcite, 5% black mud, 15% quartz, 25% barium carbonate, 5% raw kaolin, and 5% zinc oxide.

[0079] The formula of matte glaze is different. Calculated by mass percentage, the raw materials for preparing the matte glaze include: 24% sodium feldspar, 14% high-temperature potassium feldspar, 12% calcite, 8% burned talc, 10% black mud, 12% burned kaolin, 3% calcined zinc oxide, and 17% barium carbonate.

[0080] Comparative Example 1

[0081] A multi-layer antique inkjet brick, the preparation method of which differs from that of Example 1 in that:

[0082] The formula of matte glaze is different. Calculated by mass percentage, the raw materials for the preparation of matte glaze include: 27% sodium feldspar, 16% high-temperature potassium feldspar, 12% calcite, 3% burned talc, 10% black mud, 12% burned kaolin, 3% calcined zinc oxide, and 17% barium carbonate.

[0083] Comparative Example 2

[0084] A multi-layer antique inkjet brick, the preparation method of which differs from that of Example 1 in that:

[0085] The process parameters are different. In this comparative example, the flow rate of the white glaze is 17s.

[0086] Comparative Example 3

[0087] A multi-layer antique inkjet brick, the preparation method of which differs from that of Example 1 in that:

[0088] The formula of matte glaze is different. Calculated by mass percentage, the raw materials for the preparation of matte glaze include: 23% sodium feldspar, 14% high-temperature potassium feldspar, 17% calcite, 5% burned talc, 9% black mud, 12% burned kaolin, 3% calcined zinc oxide, and 17% barium carbonate.

[0089] The various properties of the above embodiments and comparative examples were tested, and the results were as follows:

[0090]

[0091]

[0092] Figure 1 This is a real-life picture of Example 1. In the picture, the color of the ink is as expected, the glaze layer forms an uneven effect, and the multi-layered antique inkjet brick has a strong sense of layering and a good three-dimensional effect.

[0093] Figure 2This is a real-life picture of comparative example 1. In the picture, a large number of small bubbles appear on the glaze surface of the tile, and the glaze surface is uneven. The reason is that when the talc content of the matte glaze is too low, the fluidity of the glaze will be reduced. During the exhaust process of firing, the gas cannot break through the glaze to lift the glaze layer, so boiling bubbles will appear and many small bumps will appear on the surface, which will greatly damage the smoothness of the glaze.

[0094] Figure 3 This is a photo of Comparative Example 2. The tile exhibits glaze cracking after firing, damaging the glaze layer. This is because the flow rate of the white glaze is too low, resulting in poor bonding between the glaze layers. This causes a large number of bubbles to accumulate between the two glaze layers during degassing, forming large bubbles that ultimately cause cracking and damage the glaze surface.

[0095] In Comparative Example 3, the glaze has too high a gloss and a too dark color. The reason is that when the calcite content of the matte glaze is too high, the firing temperature of the glaze layer is reduced, resulting in an increase in the glossiness of the glaze, which exceeds the glossiness requirement of antique tiles.

[0096] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-layer antique inkjet brick, characterized in that: It includes a body layer, a bottom glaze layer, an intermediate glaze layer, a throwing glaze layer and an inkjet layer which are arranged in sequence; the intermediate glaze layer is made of glossy glaze; the glossy glaze is prepared from raw materials including, by mass percentage, 40% to 46% of high-temperature potassium feldspar, 2% to 5% of calcite, 3% to 8% of black mud, 13% to 18% of quartz, 20% to 26% of barium carbonate, 3% to 8% of raw kaolin, and 3% to 8% of zinc oxide; the throwing glaze layer is prepared from raw materials including, by mass percentage, 23% to 30% of sodium feldspar, 12% to 18% of high-temperature potassium feldspar, 10% to 15% of calcite, 5% to 8% of burned talc, 5% to 10% of black mud, 10% to 12% of calcined kaolin, 2% to 5% of calcined zinc oxide, and 13% to 18% of barium carbonate.

2. The multi-layered antique inkjet brick according to claim 1 is characterized in that: Calculated by mass percentage, the raw materials for preparing the base glaze layer include: 8% to 14% high-temperature slurry, 4% to 8% zinc oxide, 13% to 15% zirconium silicate, 10% to 15% washed mud, 5% to 8% black mud powder, 35% to 40% red potassium sand, 8% to 10% burnt earth, 1% to 4% potassium feldspar, and 2% to 8% sodium soil; calculated by mass percentage, the raw materials for preparing the high-temperature slurry include: 22% to 28% waste materials, 15% to 20% potassium feldspar, 13% to 18% sodium feldspar, 8% to 12% black mud powder, 8% to 12% quartz, and 18% to 24% kaolin; the waste materials are used tailings or waste mud obtained after sedimentation treatment of wastewater.

3. A method for preparing antique inkjet bricks, characterized in that: The method for preparing the multi-layer antique inkjet brick according to claim 1 or 2 comprises the following steps: S001. Applying white glaze on the body layer to form a bottom glaze layer; S002. Applying a glossy glaze to form an intermediate glaze layer; S003. Apply matte glaze and glaze by throwing point process to form a glaze layer; S004. Inkjet to form an inkjet layer; S005. Firing, the firing temperature is 1225° C. to 1230° C., and the firing cycle is 50 to 55 minutes.

4. The method for preparing antique inkjet bricks according to claim 3, characterized in that: The specific gravity of the white glaze slurry is 1.33-1.35 g / cm 3 ; The flow rate of the white glaze is 19 to 21 seconds; the flow rate of the glossy glaze is 19 to 21 seconds; the flow rate of the matte glaze is 19 to 21 seconds.

5. The method for preparing antique inkjet bricks according to claim 3, characterized in that: The specific gravity of the glaze slurry is 1.33-1.35 g / cm 3 .

6. The method for preparing antique inkjet bricks according to claim 3, characterized in that: The glaze slurry specific gravity of the matte glaze is 1.33-1.35 g / cm 3 .

7. The method for preparing antique inkjet bricks according to claim 3, characterized in that: In the throwing-off process, a throwing-off cabinet is used for the throwing-off operation, the frequency of the throwing-off cabinet is 3-7 Hz, and the speed of the conveyor belt is 14-16 cm / s.

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