A 3D three-dimensional glaze and its preparation method

Abstract

The present invention discloses a 3D three-dimensional glaze, which comprises the following components in percentage by weight: 45% - 60% of silicon dioxide, 17% - 25% of aluminum oxide, 1% - 2% of calcium oxide, 0.06% - 1.2% of magnesium oxide, 0.4% - 0.6% of sodium oxide, 1% - 3% of potassium oxide, 10% - 20% of zirconium oxide, 0.2% - 0.6% of zinc oxide, and 1% - 3% of boron oxide; the loss on ignition of the 3D three-dimensional glaze is 1.8% - 3.6%. The preparation method of the 3D three-dimensional glaze is to quantitatively weigh powders such as zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphate, and then sequentially add the powders and emulsifying wax into water and stir to obtain a glaze slurry. After adjusting the viscosity of the glaze slurry, the 3D three-dimensional glaze is obtained by passing through an 80-mesh sieve. The present invention improves the adhesion of the 3D three-dimensional glaze on the surface of the green body, and when fired directly or in combination with other glazes, the three-dimensional glaze lines will not collapse, crack, have bubbles or breakpoints.

Description

Technical Field

[0001] The present invention belongs to the technical field of glazes, and particularly relates to a 3D three-dimensional glaze and a preparation method thereof. Background Art

[0002] Glazes are glassy thin layers covering ceramic green bodies. On the one hand, they improve the surface properties of ceramic products and play a protective role for the ceramic green bodies. On the other hand, glazes such as colored glazes, matte glazes, and crystallized glazes have a decorative effect on porcelain. Traditional glazes use planar glazing methods such as brushing, dipping, or spraying. After glaze firing, the decorative patterns on the porcelain have no concavity and convexity, lack three-dimensionality, and cannot achieve a three-dimensional effect. 3D three-dimensional glazes can be directly extruded into lines and adhered to the surface of ceramic green bodies, and operators can use various methods such as outlining, drawing, and writing to draw various decorative patterns on the ceramic green bodies. After glaze firing, the ceramic surface has rich levels and strong three-dimensionality, which makes 3D three-dimensional glazes deeply loved and pursued by pottery enthusiasts. However, there are still some deficiencies in the existing 3D three-dimensional glazes in use. For example, the adhesiveness of 3D three-dimensional glazes is not strong, and the adhesiveness of the glaze lines on the surface of the green body after glazing needs to be improved so that the glaze can firmly adhere to the surface of the green body. On the other hand, it is also necessary to improve that when the 3D three-dimensional glaze is directly fired or fired in combination with other glazes, the three-dimensional glaze lines will not collapse, crack, have bubbles or breakpoints, and the surface color of the fired finished product is uniform and continuous, retaining its integrity. Summary of the Invention

[0003] In view of the above deficiencies, the present invention discloses a 3D three-dimensional glaze and a preparation method thereof, which improve the adhesiveness of the 3D three-dimensional glaze on the surface of the green body, have a fast surface drying speed (judged by no more water gloss on the surface), and when directly fired or fired in combination with other glazes, the three-dimensional glaze lines will not collapse, crack, have bubbles or breakpoints.

[0004] The present invention is realized by adopting the following technical solutions:

[0005] A 3D three-dimensional glaze, which comprises the following components in percentage by weight: 45% - 60% of silicon dioxide, 17% - 25% of aluminum oxide, 1% - 2% of calcium oxide, 0.06% - 1.2% of magnesium oxide, 0.4% - 0.6% of sodium oxide, 1% - 3% of potassium oxide, 10% - 20% of zirconium oxide, 0.2% - 0.6% of zinc oxide, and 1% - 3% of boron oxide; the loss on ignition of the 3D three-dimensional glaze is 1.8% - 3.6%.

[0006] In the 3D three-dimensional glaze of the present invention, the addition of silicon dioxide and boron oxide can endow the glaze with anti-corrosion and wear-resistant properties and have good chemical stability at high temperatures. The addition of calcium oxide, magnesium oxide, sodium oxide, potassium oxide, and zinc oxide can reduce the melting temperature of the glaze, and the synergistic effect of the added aluminum oxide and zirconium oxide can improve the stability of the glaze.

[0007] Further, the raw materials of the 3D three-dimensional glaze include the following components in parts by weight: 15-20 parts of zirconium silicate, 15-30 parts of quartz powder, 10-15 parts of calcined alumina, 10-15 parts of potassium feldspar, 10-15 parts of ceramic frit powder, 0.5-1.0 part of sodium carboxymethyl cellulose, and 0.5-1.0 part of industrial tripolyphosphoric acid; the ceramic frit powder includes the following components in parts by weight: 3-4 parts of sodium oxide, 3-4 parts of potassium oxide, 9-10 parts of calcium oxide, 0.2-1 part of magnesium oxide, 2-3 parts of zinc oxide, 12-13 parts of boron oxide, 10-12 parts of alumina, and 55-60 parts of silicon dioxide.

[0008] Further, the raw materials of the 3D three-dimensional glaze further include 10-15 parts by weight of ceramic colorant. The ceramic colorant refers to a powdery mixture of metal oxides and other substances used in ceramic glazes, which is used to decorate ceramics, porcelain, and terracotta, and is also used in porcelain enamel for decorating metalware.

[0009] The preparation method of the above 3D three-dimensional glaze includes the following steps:

[0010] (1) Weigh the powder materials in proportion. The powder materials are a combination of zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphoric acid, and weigh emulsifying wax and water. The weight ratio of the powder materials, emulsifying wax, and water is (3-5):(0.1-0.3):1;

[0011] (2) Slowly add the powder materials and emulsifying wax obtained in step (1) to water in sequence under stirring conditions, and then continue stirring for 0.5-1 hour to obtain glaze slurry. Adjust the viscosity of the glaze slurry, and then pass it through an 80-mesh sieve to obtain the 3D three-dimensional glaze.

[0012] Further, in step (2), add the powder materials and emulsifying wax obtained in step (1) to water in sequence under stirring conditions at a stirring speed of 800-1000 r / min. Control the stirring speed to promote the uniform mixing of the powder materials and emulsifying wax and improve the quality of the 3D three-dimensional glaze.

[0013] Further, in step (2), slowly add the powder materials and emulsifying wax obtained in step (1) to water in sequence under stirring conditions, with uniform feeding speed, and the feeding time is controlled within 25-30 min. Control the feeding time within about 30 min to ensure that the powder materials and emulsifying wax can be uniformly dispersed and mixed in water, and avoid the situation that part of the powder materials agglomerate due to too fast feeding speed and cannot be uniformly dispersed in water and mixed with emulsifying wax, thus affecting the quality of the 3D three-dimensional glaze.

[0014] Further, in step (2), water and / or sodium carboxymethylcellulose are used to adjust the viscosity of the glaze slip, and the viscosity value of the glaze slip ranges from 60,000 to 65,000 mPa·s.

[0015] The usage method of the above 3D three-dimensional glaze is to extrude and form the 3D three-dimensional glaze and fire it alone or fire it in combination with transparent glaze, and the firing temperature is controlled at 1180 - 1260 °C.

[0016] When extruding and forming the 3D three-dimensional glaze, a 40 ml plastic bottle with a pointed nozzle can be used. It is relatively soft and is conducive to applying external force for extrusion and forming; the nozzle is a sealed conical opening, and the length of the cut part can be determined according to the thickness of the expected three-dimensional effect. The longer the cut part, the larger the opening, and the thicker the resulting line. It is best to cut it flat with a knife, cut it obliquely or cut it with scissors, as it may affect the smoothness and roundness of the extruded line.

[0017] When drawing a line, while extruding, drag the bottle body evenly, and a smooth, bubble-free, and break-free line can be obtained. The extrusion force and the dragging speed will affect the thickness of the line to a certain extent; when drawing a dot, while extruding, lift the bottle body evenly, and a smooth and bubble-free semi-elliptical spherical dot can be obtained. Similarly, the extrusion force and the lifting speed will also affect the size and shape of the dot to a certain extent.

[0018] When using the extruded 3D three-dimensional glaze in combination with transparent glaze, first extrude the 3D three-dimensional glaze according to the above steps and apply it on the green body, then stir the transparent glaze evenly, and then immerse the green body in the transparent glaze for 2 - 3 s. Since the three-dimensional line and the green body are not in complete contact and there are gaps, after immersing in the transparent glaze, gently shake the green body left and right to achieve the purpose of complete glaze dipping. Finally, dry it and then fire it.

[0019] Further, the firing program is to raise the temperature from room temperature to 550 °C at a rate of 150 °C / h, then raise it to 600 °C at a rate of 100 °C / h, and then raise it to the firing temperature at a rate of 150 °C / h, then keep it at the firing temperature for 20 min, and finally cool it naturally. For the characteristics of the 3D three-dimensional glaze formulated in the present invention, during the firing process, it is divided into multiple temperature-rising stages and the temperature-rising speed is controlled to obtain a better firing effect. ]

[0020] The technical solution of the present invention has the following beneficial effects compared with the prior art:

[0021] 1. The present invention uses zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphoric acid, etc. as raw materials, and mixes them with emulsified wax and water in proportion to obtain a glaze slurry. After adjusting the viscosity of the glaze slurry and sieving it, glaze is obtained. The glaze contains components such as silicon dioxide, alumina, calcium oxide, magnesium oxide, sodium oxide, potassium oxide, zirconium oxide, zinc oxide, and boron oxide. It can be extruded into shape and then fired alone or fired in combination with a transparent glaze. In terms of the usage method, different from the traditional planar glazing methods such as brushing glaze, dipping glaze, or spraying glaze, the 3D stereoscopic glaze of the present invention is directly extruded into shape using a plastic bottle with an adjustable bottle mouth diameter according to the pattern requirements, and is applied to the bisque surface in various ways such as outlining, drawing, and writing to achieve a three-dimensional effect. In terms of the forming effect, when applying the glaze, the lines can adhere firmly to the surface of the green body immediately, and the longer the drying time, the firmer they are; at the same time, the surface of the three-dimensional lines is smooth, without bubbles or breaks. In terms of the firing effect, the 3D stereoscopic glaze can be fired directly or in combination with a transparent glaze. If fired in combination with a transparent glaze, although the glaze contains wax, its content is controlled within a suitable range, and it will not cause the hydrophobic phenomenon of the lines to the transparent glaze, making the surface color of the fired finished product uniform and continuous, retaining its integrity. Fired according to the temperature controlled by the present invention, the obtained three-dimensional lines will not show the phenomena of collapse, cracking, bubbles, or breaks, and can highly and qualitatively restore the expected three-dimensional effect.

[0022] 2. The method of the present invention has a simple process, is easy to operate, has strong controllability, and is suitable for the automated and large-scale production of glaze. Description of the Drawings

[0023] Figure 1 is the firing effect diagram of the 3D stereoscopic glaze prepared by the method described in Example 1.

[0024] Figure 2 is the firing effect diagram of the 3D stereoscopic glaze prepared by the method described in Example 3.

[0025] Figure 3 is the firing effect diagram of the 3D stereoscopic glaze prepared by the method described in Comparative Example 2.

[0026] Figure 4 is the firing effect diagram of the 3D stereoscopic glaze prepared by the method described in Comparative Example 5. Detailed Embodiments

[0027] The present invention is further illustrated below by examples, but it is not a limitation to the present invention. For the specific experimental conditions and methods not specified in the following examples, the technical means adopted are usually the conventional means well-known to those skilled in the art.

[0028] Example 1: A 3D stereoscopic glaze, which comprises the following components in percentage by weight: 56% of silicon dioxide, 21% of aluminum oxide, 1.6% of calcium oxide, 1% of magnesium oxide, 0.5% of sodium oxide, 2.6% of potassium oxide, 16% of zirconium oxide, 0.4% of zinc oxide, and 2% of boron oxide; the loss on ignition of the 3D stereoscopic glaze is 2.7%.

[0029] The raw materials of the 3D stereoscopic glaze include the following components in parts by weight: 20 parts of zirconium silicate, 20 parts of quartz powder, 11 parts of calcined alumina, 12 parts of potassium feldspar, 12 parts of ceramic frit powder, 0.8 part of sodium carboxymethyl cellulose, 0.7 part of industrial tripolyphosphoric acid, and 11 parts of white ceramic colorant; the ceramic frit powder includes the following components in parts by weight: 3.23 parts of sodium oxide, 3.55 parts of potassium oxide, 9.430 parts of calcium oxide, 0.50 part of magnesium oxide, 2.45 parts of zinc oxide, 12.81 parts of boron oxide, 10.59 parts of aluminum oxide, and 57.44 parts of silicon dioxide.

[0030] The preparation method of the 3D stereoscopic glaze in this example includes the following steps:

[0031] (1) Weigh the powder materials proportionally. The powder materials are a combination of zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphoric acid. And weigh emulsifying wax and water. The weight ratio of the powder materials, emulsifying wax, and water is 4:0.2:1.

[0032] (2) Slowly add the powder materials and emulsifying wax obtained in step (1) to water in turn under the stirring condition of 900 r / min, with uniform feeding speed, and the feeding time is controlled within 30 min. Then continue to stir for 0.8 hours to obtain the glaze slurry. Adjust the viscosity of the glaze slurry with water. The viscosity value range of the glaze slurry is 62000 mPa·s. Then pass through an 80-mesh sieve to obtain the 3D stereoscopic glaze.

[0033] The 3D stereoscopic glaze is extruded and formed and fired alone or fired in combination with a transparent glaze. It can form a three-dimensional line with uniform thickness, smooth surface, no bubbles, and no breakpoints on the bisque-fired surface. It is fired under the condition of a firing temperature of 1260 °C. The firing procedure is to raise the temperature from room temperature to 550 °C at a rate of 150 °C / h, then raise it to 600 °C at a rate of 100 °C / h, and then raise it to the firing temperature at a rate of 150 °C / h. Then keep it warm at the firing temperature for 20 min, and finally cool down naturally.

[0034] Example 2: A 3D stereoscopic glaze, which comprises the following components in percentage by weight: 50% of silicon dioxide, 20% of aluminum oxide, 1.2% of calcium oxide, 0.5% of magnesium oxide, 0.45% of sodium oxide, 2% of potassium oxide, 18% of zirconium oxide, 0.5% of zinc oxide, and 1.5% of boron oxide; the loss on ignition of the 3D stereoscopic glaze is 2.1%.

[0035] The raw materials of the 3D three-dimensional glaze include the following components in parts by weight: 17 parts of zirconium silicate, 17 parts of quartz powder, 12 parts of calcined alumina, 11 parts of potassium feldspar, 12 parts of ceramic frit powder, 0.6 part of sodium carboxymethyl cellulose, and 0.8 part of industrial tripolyphosphoric acid; the ceramic frit powder includes the following components in parts by weight: 3 parts of sodium oxide, 3 parts of potassium oxide, 9 parts of calcium oxide, 0.2 part of magnesium oxide, 2 parts of zinc oxide, 12 parts of boron oxide, 10 parts of alumina, and 55 parts of silicon dioxide.

[0036] The preparation method of the 3D three-dimensional glaze in this embodiment includes the following steps:

[0037] (1) Weigh the powder materials in proportion. The powder materials are a combination of zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphoric acid. Also, weigh emulsifying wax and water. The weight ratio of the powder materials, emulsifying wax, and water is 4.5:0.25:1.

[0038] (2) Slowly add the powder materials and emulsifying wax obtained in step (1) to water in sequence under the stirring condition of 800 r / min, with uniform feeding speed, and the feeding time is controlled within 30 min. Then continue stirring for 0.8 hours to obtain the glaze slurry. Use water and sodium carboxymethyl cellulose to adjust the viscosity of the glaze slurry. The viscosity value range of the glaze slurry is 60000 mPa·s. Then pass it through an 80-mesh sieve to obtain the 3D three-dimensional glaze.

[0039] The 3D three-dimensional glaze is extruded and formed for single firing or fired in combination with transparent glaze. It can form three-dimensional lines with uniform thickness, smooth surface, no bubbles, and no breakpoints on the bisque-fired surface. The firing is carried out under the condition of a firing temperature of 1180 °C. The firing procedure is to rise from room temperature to 550 °C at a rate of 150 °C / h, then rise to 600 °C at a rate of 100 °C / h, and then rise to the firing temperature at a rate of 150 °C / h. Then keep it warm at the firing temperature for 20 min, and finally cool down naturally.

[0040] Example 3: A 3D three-dimensional glaze, which includes the following components in weight percentage: 45% of silicon dioxide, 17% of alumina, 1% of calcium oxide, 0.06% of magnesium oxide, 0.4% of sodium oxide, 1% of potassium oxide, 10% of zirconium oxide, 0.2% of zinc oxide, and 1% of boron oxide; the loss on ignition of the 3D three-dimensional glaze is 1.8%.

[0041] The raw materials of the 3D three-dimensional glaze include the following components in parts by weight: 15 parts of zirconium silicate, 15 parts of quartz powder, 10 parts of calcined alumina, 10 parts of potassium feldspar, 10 parts of ceramic frit powder, 0.5 part of sodium carboxymethyl cellulose, 0.5 part of industrial tripolyphosphoric acid, and 10 parts of black ceramic colorant; the ceramic frit powder includes the following components in parts by weight: 3.67 parts of sodium oxide, 3.84 parts of potassium oxide, 9.41 parts of calcium oxide, 0.80 part of magnesium oxide, 2.12 parts of zinc oxide, 12.36 parts of boron oxide, 11.23 parts of alumina, and 56.8 parts of silicon dioxide.

[0042] The preparation method of the 3D three-dimensional glaze in this embodiment includes the following steps:

[0043] (1) Weigh the powder materials proportionally. The powder materials are a combination of zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphoric acid. And weigh emulsifying wax and water. The weight ratio of the powder materials, emulsifying wax, and water is 3:0.1:1.

[0044] (2) Slowly add the powder materials and emulsifying wax obtained in step (1) to water in sequence under the stirring condition of a speed of 850 r / min, with uniform feeding speed, and the feeding time is controlled within 28 min. Then continue to stir for 0.5 hour to obtain the glaze slurry. Use sodium carboxymethyl cellulose to adjust the viscosity of the glaze slurry. The viscosity value range of the glaze slurry is 64000 mPa·s. Then pass through an 80-mesh sieve to obtain the 3D three-dimensional glaze.

[0045] The 3D three-dimensional glaze is extruded and formed for separate firing or fired in combination with transparent glaze. It can form three-dimensional lines with uniform thickness, smooth surface, no bubbles, and no breakpoints on the bisque-fired surface. The firing is carried out under the condition of a firing temperature of 1240 °C. The firing procedure is to rise from room temperature to 550 °C at a rate of 150 °C / h, then rise to 600 °C at a rate of 100 °C / h, and then rise to the firing temperature at a rate of 150 °C / h. Then keep it at the firing temperature for 20 min, and finally cool down naturally.

[0046] Example 4: A 3D three-dimensional glaze, which includes the following components in weight percentage: 60% of silicon dioxide, 25% of alumina, 2% of calcium oxide, 1.2% of magnesium oxide, 0.6% of sodium oxide, 3% of potassium oxide, 20% of zirconium oxide, 0.6% of zinc oxide, and 3% of boron oxide; the loss on ignition of the 3D three-dimensional glaze is 3.6%.

[0047] The raw materials of the 3D three-dimensional glaze include the following components in parts by weight: 20 parts of zirconium silicate, 30 parts of quartz powder, 15 parts of calcined alumina, 15 parts of potassium feldspar, 15 parts of ceramic frit powder, 1.0 part of sodium carboxymethyl cellulose, 1.0 part of industrial tripolyphosphoric acid, and 15 parts of red ceramic pigment; the ceramic frit powder includes the following components in parts by weight: 4 parts of sodium oxide, 4 parts of potassium oxide, 10 parts of calcium oxide, 1 part of magnesium oxide, 3 parts of zinc oxide, 13 parts of boron oxide, 12 parts of alumina, and 60 parts of silicon dioxide.

[0048] The preparation method of the 3D three-dimensional glaze described in this embodiment includes the following steps:

[0049] (1) Weigh the powder materials proportionally. The powder materials are a combination of zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphoric acid. And weigh emulsifying wax and water. The weight ratio of the powder materials, emulsifying wax, and water is 5:0.3:1.

[0050] (2) Slowly add the powder materials and emulsifying wax obtained in step (1) to water in turn under the stirring condition with a speed of 1000 r / min, with uniform feeding speed, and the feeding time is controlled within 25 min. Then continue to stir for 1 hour to obtain the glaze slurry. Use sodium carboxymethyl cellulose to adjust the viscosity of the glaze slurry. The viscosity value range of the glaze slurry is 65000 mPa·s. Then pass through an 80-mesh sieve to obtain the 3D three-dimensional glaze.

[0051] The 3D three-dimensional glaze is extruded and formed and fired alone or fired in combination with transparent glaze. It can form three-dimensional lines with uniform thickness, smooth surface, no bubbles, and no breakpoints on the bisque-fired surface. The firing is carried out under the condition of a firing temperature of 1200 °C. The firing procedure is to rise from room temperature to 550 °C at a rate of 150 °C / h, then rise to 600 °C at a rate of 100 °C / h, and then rise to the firing temperature at a rate of 150 °C / h. Then keep it warm at the firing temperature for 20 min, and finally cool down naturally.

[0052] Comparative Example 1: The difference between the 3D three-dimensional glaze described in this comparative example and the 3D three-dimensional glaze described in Example 1 is only that, calculated by weight percentage, alumina is replaced with kaolin; the raw materials, preparation method, and usage method of the 3D three-dimensional glaze described in this comparative example are the same as those described in Example 1.

[0053] Comparative Example 2: The difference between the 3D three-dimensional glaze described in this comparative example and the 3D three-dimensional glaze described in Example 3 is only that, calculated by weight percentage, the ceramic frit powder is replaced with calcium carbonate; the raw materials, preparation method, and usage method of the 3D three-dimensional glaze described in this comparative example are the same as those described in Example 3.

[0054] Comparative Example 3: The components, raw materials, and usage method of the 3D three-dimensional glaze in this comparative example are the same as those of the 3D three-dimensional glaze in Example 3. The difference between the preparation method of the 3D three-dimensional glaze in this comparative example and the preparation method in Example 3 is only that emulsifying wax is not used, and the powder is only added to water and stirred to prepare the glaze slurry.

[0055] Comparative Example 4: The components, raw materials, and preparation method of the 3D three-dimensional glaze in this comparative example are the same as those of the 3D three-dimensional glaze in Example 1. The difference between the usage method of the 3D three-dimensional glaze in this comparative example and the usage method in Example 1 is only that firing is carried out under the condition of a temperature of 1000 °C.

[0056] Comparative Example 5: The components, raw materials, and preparation method of the 3D three-dimensional glaze in this comparative example are the same as those of the 3D three-dimensional glaze in Example 1. The difference between the usage method of the 3D three-dimensional glaze in this comparative example and the usage method in Example 1 is only that firing is carried out under the condition of a temperature of 1300 °C.

[0057] Experimental Example: The 3D three-dimensional glaze was prepared and fired according to the methods described in Examples 1 to 4 and Comparative Examples 1 to 5, and the performance of the fired finished glaze was tested (dry speed performance test and viscosity performance test), and the firing effect was investigated. The specific results are shown in Table 1.

[0058] Table 1 Performance test results of the finished glaze prepared by different methods

[0059]

[0060] It can be seen from the above data that the 3D three-dimensional glaze prepared according to the formula and method of the present invention has a better drying speed, stronger adhesion after complete drying, and a better firing effect. Refer to Figures 1 to 4 , according to the methods described in Example 1 and Example 3, the green body sheet was used to coat the 3D three-dimensional glaze for firing. The part with the transparent glaze is a complete line that is shiny, smooth, bubble-free, and breakpoint-free, and there will be no phenomenon of sparse glaze or glaze blistering at the part in contact with the porcelain plate. The part without the transparent glaze is a complete line that is matte or dull, and is also smooth, bubble-free, and breakpoint-free. However, according to the methods described in Comparative Example 2 and Comparative Example 5, the green body sheet was used to coat the 3D three-dimensional glaze for firing, and the obtained firing effect is poor, and there are problems such as rough surface, line collapse, flatness, and non-smoothness.

[0061] Although Comparative Example 1 and Comparative Example 2 have a good drying speed, their adhesion is poor. Comparative Example 3 has a good adhesion, but a poor drying speed. Although Comparative Example 4 and Comparative Example 5 have good performance in terms of drying speed and adhesion, the firing effect after firing is significantly worse than that of the 3D three-dimensional glaze described by the method of the present invention.

[0062] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A preparation method of 3D three-dimensional glaze, characterized in that: The 3D three-dimensional glaze comprises the following components in percentage by weight: 45% - 60% of silicon dioxide, 17% - 25% of aluminum oxide, 1% - 2% of calcium oxide, 0.06% - 1.2% of magnesium oxide, 0.4% - 0.6% of sodium oxide, 1% - 3% of potassium oxide, 10% - 20% of zirconium oxide, 0.2% - 0.6% of zinc oxide, 1% - 3% of boron oxide; the loss on ignition of the 3D three-dimensional glaze is 1.8% - 3.6%; The raw materials of the 3D three-dimensional glaze comprise the following components in parts by weight: 15 - 20 parts of zirconium silicate, 15 - 30 parts of quartz powder, 10 - 15 parts of calcined alumina, 10 - 15 parts of potassium feldspar, 10 - 15 parts of ceramic frit powder, 0.5 - 1.0 part of sodium carboxymethyl cellulose, 0.5 - 1.0 part of industrial tripolyphosphoric acid; the ceramic frit powder comprises the following components in parts by weight: 3 - 4 parts of sodium oxide, 3 - 4 parts of potassium oxide, 9 - 10 parts of calcium oxide, 0.2 - 1 part of magnesium oxide, 2 - 3 parts of zinc oxide, 12 - 13 parts of boron oxide, 10 - 12 parts of aluminum oxide, 55 - 60 parts of silicon dioxide; The preparation method of the 3D three-dimensional glaze comprises the following steps: (1) Weigh the powder materials proportionally, the powder materials are a combination of zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose and industrial tripolyphosphoric acid, and weigh emulsifying wax and water, and the weight ratio of the powder materials, emulsifying wax and water is (3 - 5):(0.1 - 0.3):1; (2) Slowly add the powder materials and emulsifying wax obtained in step (1) to water in sequence under stirring conditions, and then continue to stir for 0.5 - 1 hour to obtain glaze slurry, adjust the viscosity of the glaze slurry with water and / or sodium carboxymethyl cellulose, the viscosity value range of the glaze slurry is 60000 - 65000 mPa·s, and then pass through an 80-mesh sieve to obtain the 3D three-dimensional glaze; The using method of the 3D three-dimensional glaze is to extrude and form the 3D three-dimensional glaze, and then fire it alone or fire it in combination with transparent glaze, and the firing temperature is controlled at 1180 - 1260 °C.

2. The preparation method of the 3D stereoscopic glaze according to claim 1, wherein: The raw materials of the 3D three-dimensional glaze further comprise 10 - 15 parts by weight of ceramic colorant.

3. The preparation method of the 3D stereoscopic glaze according to claim 1, characterized in that: In step (2), add the powder materials and emulsifying wax obtained in step (1) to water in sequence under stirring conditions at a speed of 800 - 1000 r / min.

4. The preparation method of the 3D three-dimensional glaze according to claim 1, characterized in that: In step (2), slowly add the powder materials and emulsifying wax obtained in step (1) to water in sequence under stirring conditions, wherein the feeding is uniform, and the feeding time is controlled at 25 - 30 min.

5. The preparation method of the 3D three-dimensional glaze according to claim 1, characterized in that: The firing procedure is to rise from room temperature to 550 °C at a rate of 150 °C / h, then rise to 600 °C at a rate of 100 °C / h, then rise to the firing temperature at a rate of 150 °C / h, then keep it at the firing temperature for 20 min, and finally cool down naturally.

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