CN115849713A - Digital satin protection glaze and product and preparation method thereof - Google Patents
Digital satin protection glaze and product and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a digital satin protection glaze material, a product thereof and a preparation method thereof, and relates to the field of ceramic materials. The digital satin protection glaze comprises 18-22 parts by weight of potash feldspar, 4-6 parts by weight of calcite, 7.5-8.5 parts by weight of calcined talc, 5-7 parts by weight of calcined kaolin, 8-12 parts by weight of water-washed kaolin, 4-6 parts by weight of calcined zinc oxide, 16-20 parts by weight of barium carbonate and 30-40 parts by weight of high-temperature matte frit. The high-temperature matte frit is prepared by mixing silicon dioxide, aluminum oxide, barium oxide, zinc oxide, strontium oxide, potassium oxide, sodium oxide, calcium oxide, magnesium oxide, phosphorus pentoxide and fluorine-containing compound according to a specific proportion. The glaze prepared from the digital satin protection glaze is flat and free of defects, has natural light sensation and no light condensation, is wide in firing range, good in antifouling property and excellent in wear resistance, and does not influence clear color development of the ink-jet ink.
Description
Technical Field
The invention relates to the field of ceramic materials, in particular to a digital satin protection glaze material, a product thereof and a preparation method thereof.
Background
The modern ceramic technology ink jet equipment pushes out full digital ink and semi-digital ink, and the digital ink has narrow firing application range in the high-temperature firing process of ceramic tile products due to the fine grinding (generally, the fineness is more than 2000 meshes) of high-temperature materials in the ink. When the firing temperature of the existing digital ink kiln is lower than 1150 ℃, the glaze surface roughness is detected by a photometer to be lower than 4 ℃, the hand feeling is rough, and the surface is easy to absorb dirt; when the kiln firing temperature is higher than 1175 ℃, the glaze luminosity is higher than 15 ℃, and meanwhile, the glaze surface is easy to generate surface defects such as collapse, blister, pinholes, miliaria and the like.
The digital protection glaze can flexibly adjust the sintering range, but the digital protection glaze in the prior art is generally a high-calcium system and generally has the problems of more surface defects, poor wear resistance, unclear color development of the ink-jet ink and the like. In addition, the light pollution is easily caused by the excessively high brightness of the digital protective glaze. Therefore, how to obtain the digital protective glaze which has less surface defects, good wear resistance, natural light sensation and clear color development of the ink-jet ink has great economic value.
Disclosure of Invention
In order to solve the problems that the existing digital protective glaze has many surface defects, poor wear resistance and light sensation and can not allow ink-jet ink to clearly develop color, the application provides a digital satin protective glaze, a product thereof and a preparation method thereof.
In a first aspect, the digital satin protection glaze provided by the application adopts the following technical scheme:
a digital satin protection glaze comprises 18-22 parts by weight of potash feldspar, 4-6 parts by weight of calcite, 7.5-8.5 parts by weight of calcined talc, 5-7 parts by weight of calcined kaolin, 8-12 parts by weight of water-washed kaolin, 4-6 parts by weight of calcined zinc oxide, 16-20 parts by weight of barium carbonate and 30-40 parts by weight of high-temperature matte frit; the high-temperature matte frit is prepared from the following components in percentage by weight: 50-55% of silicon dioxide, 17-22% of aluminum oxide, 10-11% of barium oxide, 3.5-4.0% of zinc oxide, 2.5-4.5% of strontium oxide, 2.65-3.12% of potassium oxide, 3.70-4.43% of sodium oxide, 2.5-4.0% of calcium oxide, 0.05-0.15% of magnesium oxide, 0.1-0.3% of phosphorus pentoxide and 0.2-0.3% of fluorine-containing compound.
The refractory materials such as silicon dioxide and aluminum oxide which have the skeleton supporting function are mixed and melted with potassium oxide, sodium oxide, calcium oxide, magnesium oxide and the like to form high-temperature matte frits, and after the high-temperature matte frits which are relatively fusible are obtained through one-time melting, the skeleton materials can be promoted to be uniformly dispersed in glaze, so that the hardness and the wear resistance of the glaze surface can be improved. Because the high-temperature matte frit cannot be completely melted with the glaze, the glaze has fine sand grain handfeel, the luminosity of the glaze is 6-8 ℃, and light is not condensed.
Secondly, the cooperation of potash feldspar, calcite, calcined talc, calcined kaolin, washed kaolin, calcined zinc oxide, barium carbonate and specific high-temperature matte frit widens the firing range to 1140-1185 ℃, effectively improves the hardness and wear resistance of the glaze surface, is beneficial to the discharge of gas in the firing process, effectively prevents the problems of surface defects such as collapse, bubbling, pinholes and miliaria easily generated on the glaze surface, and has good antifouling property. In addition, the digital protective glaze cannot influence the clear color development of the ink-jet ink, such as red ink, yellow ink, brown ink, black ink and the like, and cannot generate color difference. And when the ink-jet ink adopts the carved bright ink-jet ink, the texture of the glaze surface of the digital satin protection glaze is more exquisite by forming contrast through the effect of the digital satin protection glaze and the carved bright ink-jet ink.
Preferably, the high-temperature matte frit is prepared from the following components in percentage by weight: 52 to 53 percent of silicon dioxide, 18 to 20 percent of aluminum oxide, 10.5 to 11 percent of barium oxide, 3.5 to 3.6 percent of zinc oxide, 3.0 to 3.62 percent of strontium oxide, 2.85 to 3.05 percent of potassium oxide, 4.05 to 4.25 percent of sodium oxide, 3.0 to 3.5 percent of calcium oxide, 0.08 to 0.1 percent of magnesium oxide, 0.15 to 0.2 percent of phosphorus pentoxide and 0.25 to 0.3 percent of fluorine-containing compound. The high-temperature matte frit can further improve the hardness and wear resistance of the digital satin protective glaze.
Optionally, the fluorine-containing compound is one or a combination of more of calcium fluoride, fluorite and sodium fluosilicate.
Preferably, the preparation method of the high-temperature matte frit comprises the following steps:
mixing silicon dioxide, aluminum oxide, barium oxide, zinc oxide, strontium oxide, potassium oxide, sodium oxide, calcium oxide, magnesium oxide, phosphorus pentoxide and fluorine-containing compounds according to the proportion, melting at 1530-1550 ℃, cooling and crushing to obtain the high-temperature matte frit.
The high-temperature matte frit prepared by the preparation method is beneficial to uniformly melting all raw materials and effectively removing organic matters brought in the raw materials.
In a second aspect, the present application provides a digital satin protection glaze slip, comprising a ceramic dry particle suspending agent, water and any one of the above digital satin protection glazes; the addition amount of the ceramic dry particle suspending agent is 0.4-0.6% of the digital satin protection glaze, and the water is used for adjusting the specific gravity of the digital satin protection glaze slurry to 1.2-1.3; wherein, the digital satin protection glaze slurry is sieved by a 325 mesh sieve, and the screen residue rate is controlled to be 0.2-0.4%.
When the screen residue of the digital satin protection glaze slurry is controlled to be 0.2-0.4%, the temperature resistance and the uniform dispersion performance of the digital satin protection glaze are good; in addition, the specific gravity of the digital satin protection glaze is not suitable to be too high, and the glaze surface is difficult to disperse when the specific gravity is too high, so that the coverage is easy to be uneven, and the phenomena of bulk crystal blocks and white frosting are easy to generate.
In a third aspect, the present application provides a digital satin protection glaze tile, which adopts the following technical scheme:
a digital satin protection glaze ceramic tile comprises a body layer, a ground glaze layer, a pattern layer and a protection glaze layer which are arranged in sequence; the ground glaze layer is formed by firing ground glaze slurry sprayed on the surface of the green body layer, and the protective glaze layer is formed by firing digital satin protective glaze slurry sprayed on the outer side of the pattern layer.
Preferably, the ground glaze in the ground glaze slip comprises 12-18 parts by weight of potassium feldspar, 15-20 parts by weight of albite, 3-5 parts by weight of calcined talc, 6-10 parts by weight of calcined alumina, 2-4 parts by weight of calcined zinc oxide, 8-12 parts by weight of barium carbonate, 12-18 parts by weight of nepheline, 8-12 parts by weight of water-washed kaolin and 16-24 parts by weight of quartz.
The ground glaze can improve the adaptability of the ground glaze to the body layer by the matching of calcined alumina and nepheline, so that the ground glaze can adapt to various different bodies, the possibility of glaze shrinkage or stripping is reduced, and the quality stability of the digital satin protection glaze ceramic tile is improved. Secondly, the bottom glaze and the digital satin protection glaze have good adaptability, and the bottom glaze and the digital satin protection glaze can be matched to obtain a smooth digital satin protection glaze surface and promote dispersion of ink-jet ink, so that the forming pattern of the digital satin protection glaze ceramic tile is consistent with an expected design pattern.
Preferably, the ground glaze slurry comprises ground glaze and water, wherein the water is used for adjusting the specific gravity of the ground glaze slurry to be 1.85-1.89; wherein, the ground glaze slurry is sieved by a 325-mesh sieve, and the residue rate is controlled to be 0.3-0.5%.
Wherein, when the screen residue of the ground glaze slurry is controlled to be 0.3-0.5%, the temperature resistance and the uniform dispersion performance of the ground glaze are both better.
In a fourth aspect, the preparation method of the digital satin protection glaze ceramic tile provided by the application adopts the following technical scheme: a preparation method of a digital satin protection glaze tile comprises the following steps:
removing impurities on the surface of the dried blank, uniformly spraying water on the surface of the cleaned blank, wherein the water spraying amount is controlled to be 3-5mg/cm 2 Obtaining a wet blank;
uniformly distributing ground glaze slurry on the surface of the wet blank to form a ground glaze layer;
according to the required pattern, ink is sprayed and printed on the ground coat layer to form a pattern layer;
uniformly spreading digital satin protection glaze slip on the pattern layer to form a protection glaze layer;
and (3) placing the blank body coated with the protective glaze layer into a kiln, and firing at 1140-1185 ℃ for 40-60min to obtain the digital satin protective glaze ceramic tile.
Before applying the ground glaze slurry, spraying water to wet the blank body, so that the possibility of glaze shrinkage or glaze stripping is reduced, and the dispersibility of the ground glaze and the combination stability of the ground glaze and the blank body are improved; in addition, the green body coated with the protective glaze layer is sintered in the temperature range, so that the ceramic tile with stable effect and high qualification rate is obtained.
Preferably, the spraying amount of the ground glaze slurry is 50-60mg/cm 2 The spraying amount of the digital satin protection glaze slip is 27-32mg/cm 2 . Is beneficial to improving the adhesion stability of the ground glaze layer and the green body layer as well as the ground glaze layer and the protective glaze layer.
In summary, the technical solution claimed in the present application at least includes the following beneficial effects:
(1) The digital satin protection glaze has 6-8 degrees of surface luminosity, natural light sensation without light condensation, fine hand feeling, fine sand feeling, flat surface, no defects of ceramic products such as pinholes, miliaria and the like, wide sintering adjustable range digital ink, good surface antifouling performance, wear resistance and qualified physical and chemical properties.
(2) The digital satin protection glaze can promote the color development of the ink-jet ink, and the color development is clear and stable.
(3) The ground glaze and the digital satin protection glaze can not influence the dispersion of the ink-jet ink, and can promote the digital satin protection glaze ceramic tile to obtain an expected design pattern.
Drawings
Fig. 1 is a schematic view of a digital satin-protected glazed ceramic tile according to the present application.
Detailed Description
First, the present application discloses a digital satin protection glaze, which has the advantages of wide firing range, high hardness, good wear resistance, no surface defect, stability, and the like. Specifically, the digital satin protection glaze comprises 18-22 parts by weight of potash feldspar, 4-6 parts by weight of calcite, 7.5-8.5 parts by weight of calcined talc, 5-7 parts by weight of calcined kaolin, 8-12 parts by weight of water-washed kaolin, 4-6 parts by weight of calcined zinc oxide, 16-20 parts by weight of barium carbonate and 30-40 parts by weight of high-temperature matte frit. The high-temperature matte frit is prepared from the following components in percentage by weight: 50-55% of silicon dioxide, 17-22% of aluminum oxide, 10-11% of barium oxide, 3.5-4.0% of zinc oxide, 2.5-4.5% of strontium oxide, 2.65-3.12% of potassium oxide, 3.70-4.43% of sodium oxide, 2.5-4.0% of calcium oxide, 0.05-0.15% of magnesium oxide, 0.1-0.3% of phosphorus pentoxide and 0.2-0.3% of fluorine-containing compound.
Preferably, the high-temperature matte frit is prepared from the following components in percentage by weight: 52 to 53 percent of silicon dioxide, 18 to 20 percent of aluminum oxide, 10.5 to 11 percent of barium oxide, 3.5 to 3.6 percent of zinc oxide, 3.0 to 3.62 percent of strontium oxide, 2.85 to 3.05 percent of potassium oxide, 4.05 to 4.25 percent of sodium oxide, 3.0 to 3.5 percent of calcium oxide, 0.08 to 0.1 percent of magnesium oxide, 0.15 to 0.2 percent of phosphorus pentoxide and 0.25 to 0.3 percent of fluorine-containing compound.
The preparation method of the high-temperature matte frit comprises the following steps:
uniformly mixing silicon dioxide, aluminum oxide, barium oxide, zinc oxide, strontium oxide, potassium oxide, sodium oxide, calcium oxide, magnesium oxide, phosphorus pentoxide and fluorine-containing compounds according to the proportion, melting at 1530-1550 ℃, cooling, and performing ball milling to obtain the high-temperature matte frit.
In the raw materials for preparing the digital satin protection glaze, the potash feldspar, the calcite and the burning talc are used as the fusing agents, so that the burning temperature of the glaze can be reduced. The calcined kaolin and the washed kaolin have cohesiveness and can improve the dispersibility and stability of the digital satin protective glaze, but the mixing amount of the calcined kaolin and the washed kaolin is not too high, otherwise, the digital satin protective glaze is easy to generate surface defects such as pinholes, miliaria and the like. The firing temperature of the glaze can be reduced by calcining the zinc oxide, but when the mixing amount of the calcined zinc oxide is too high, the firing temperature of the glaze is obviously reduced, and the glaze surface is easy to have yellowish red color tone. The barium carbonate can reduce the luminosity of the glaze, so that the glaze does not condense light and has natural light sensation. However, when the amount of barium carbonate is too high, a large amount of carbon dioxide is easily generated, and when carbon dioxide is not completely discharged, surface defects such as bubbles and pinholes are easily generated on the glaze.
For the high-temperature matte frit, the high-temperature matte frit can promote the glaze to form a stable skeleton, is favorable for improving the strength and the wear resistance of the glaze surface, and has the advantage of good appearance. The high-temperature matte frit has the disadvantages of uneven surface, poor antifouling property, whitish glaze and the like due to too low mixing amount.
The silicon dioxide and the aluminum oxide in the high-temperature matte frit play a role in supporting a framework. Wherein, too low mixing amount of the aluminum oxide can cause the hardness and the wear resistance of the glaze to be reduced, and too high mixing amount can cause the glaze to be whitish.
Both potassium oxide and sodium oxide act as fluxes. Among them, potassium oxide is advantageous for coloring of the ink-jet ink, but when the amount of potassium oxide incorporated is too large, the ink-jet ink tends to have a reddish hue. Therefore, sodium oxide is doped as a flux, and after the sodium oxide is added, the fusion of the glaze is better, and the stationary phase is better.
The magnesium oxide and calcium oxide act as fluxing agents. The fluxing effect of calcium oxide is superior to that of magnesium oxide, but excessive calcium oxide is easily doped to cause surface defects of a glaze surface such as pinholes, miliaria and the like, the luminosity of the glaze surface is increased, and the light sensation is unnatural; and also results in reduced wear resistance and hardness of the glaze. Therefore, a proper amount of magnesium oxide is added to be used as a fluxing agent, and after the magnesium oxide is added, the melting performance of the glaze can be improved, and the generation of surface defects of the glaze is reduced.
The strontium oxide can improve the fluidity of high-temperature melting of the glaze, is beneficial to the discharge of gas, and prevents the generation of surface defects such as pinholes on the glaze surface, miliaria and the like. However, when the amount of strontium oxide is too high, the fluidity of the glaze is too high, and the problem that the lines cannot be quickly fixed and engraved is easily caused, so that the final formed pattern of the tile does not match the expected designed pattern.
The fluorine-containing compound can be selected from one or a combination of more of calcium fluoride, fluorite and sodium fluosilicate.
Secondly, the application discloses a digital satin protection glaze slip, which comprises the digital satin protection glaze, a ceramic dry particle suspending agent and water, wherein the using amount of the ceramic dry particle suspending agent is 0.4-0.6% of the weight of the digital satin protection glaze. The preparation method of the digital satin protection glaze slip comprises the following steps:
after mixing the digital satin protection glaze and the ceramic dry particle suspending agent, adding water to adjust the specific gravity to 1.2-1.3, then carrying out ball milling, and sieving with a 325-mesh sieve, wherein the screen residue is controlled to be 0.2-0.4%.
Wherein, when the screen residue of the digital satin protection glaze slip is controlled to be 0.2-0.4%, the digital satin protection glaze has better temperature resistance and uniform dispersion performance.
Thirdly, referring to fig. 1, the present application discloses a digital satin protection glaze tile, comprising a body layer, a ground glaze layer, a pattern layer and a protection glaze layer; specifically, the ground glaze layer is formed by firing ground glaze slurry sprayed on the surface of the green body layer, and the protective glaze layer is formed by firing digital satin protective glaze slurry sprayed on the outer side of the pattern layer.
The ground glaze material in the ground glaze slurry preferably comprises the following raw materials in parts by weight: 12-18 parts of potassium feldspar, 15-20 parts of albite, 3-5 parts of calcined talc, 6-10 parts of calcined alumina, 2-4 parts of calcined zinc oxide, 8-12 parts of barium carbonate, 12-18 parts of nepheline, 8-12 parts of water-washed kaolin and 16-24 parts of quartz.
Firstly, the combination of the calcined alumina and the nepheline can improve the adaptability of the ground glaze to the blank layer, so that the ground glaze can be adapted to various blanks, the possibility of glaze shrinkage or stripping is reduced, and the quality stability of the digital satin protection glaze ceramic tile is improved. And secondly, the base glaze has good adaptability with the digital satin protection glaze, and is beneficial to obtaining a smooth digital satin protection glaze surface. In addition, the ground glaze and the digital satin protection glaze are matched to promote the dispersion of the ink-jet ink, so that the forming pattern of the digital satin protection glaze ceramic tile is consistent with the expected design pattern.
Preferably, the preparation method of the ground glaze slurry comprises the following steps:
adding water into the digital satin protective glaze to adjust the specific gravity to 1.85-1.89, then ball-milling, sieving with a 325-mesh sieve, and controlling the screen residue at 0.3-0.5%.
Wherein, when the screen residue of the ground glaze slurry is controlled to be 0.3-0.5%, the temperature resistance and the uniform dispersion performance of the ground glaze are both better.
Thirdly, the application also discloses a preparation method of the digital satin protection glaze ceramic tile, which comprises the following steps:
s1, removing impurities on the surface of a dried blank, and uniformly spraying water on the surface of the cleaned blank, wherein the water spraying amount is controlled to be 3-5mg/cm 2 Obtaining a wet blank;
s2, uniformly spreading the ground glaze slurry on the surface of the wet blank to form a ground glaze layer, wherein the spraying amount of the ground glaze slurry is 50-60mg/cm 2 (ii) a According to the required pattern, ink is sprayed and printed on the ground coat layer to form a pattern layer; wherein the ink can beSelecting red ink, yellow ink, brown ink, black ink and the like according to color requirements, or selecting fine engraving gloss ink or fine engraving matte ink according to light sensation requirements, and specifically selecting according to actual requirements;
uniformly spreading digital satin protection glaze slip on the pattern layer to form a protection glaze layer, wherein the spraying amount of the digital satin protection glaze slip is 27-32mg/cm 2 ；
And (3) placing the blank body coated with the protective glaze layer into a kiln, and firing at 1150-1185 ℃ for 40-60min to obtain the digital satin protective glaze ceramic tile.
Before applying the ground glaze slurry, spraying water to wet the blank body, so that the possibility of glaze shrinkage or glaze stripping is reduced, and the dispersibility of the ground glaze and the combination stability of the ground glaze and the blank body are improved; in addition, the green body coated with the protective glaze layer is sintered in the temperature range, so that the ceramic tile with stable effect and high qualification rate is obtained.
Hereinafter, the present application will be described in further detail with reference to specific production examples, comparative examples, application examples, and comparative application examples.
Preparation of high temperature matte frit
The compositions of the high temperature matte frits of preparation examples 1-8 are given in table 1 below:
TABLE 1 compositions (kg) of high temperature matte frits of preparation examples 1-8
Among them, the preparation examples 1 to 5 are different in the amount of each component. Preparation 6 differs from preparation 4 in the content of silica and strontium oxide; preparation examples 7 to 8 were different from preparation example 4 in the content of silica and alumina.
In addition, the preparation method of the high-temperature matte frit in preparation examples 1 to 8 comprises the following steps:
mixing silicon dioxide, aluminum oxide, barium oxide, zinc oxide, strontium oxide, potassium oxide, sodium oxide, calcium oxide, magnesium oxide, phosphorus pentoxide and calcium fluoride according to a ratio, melting uniformly at 1530 ℃, cooling, and crushing to obtain the high-temperature matte frit, wherein the fineness of the high-temperature matte frit is 300-400 meshes.
Preparation example 9
A high temperature matte frit which differs from preparation example 4 in that:
the strontium oxide is replaced by the same amount of zirconium oxide.
Preparation example 10
A high temperature matte frit which differs from preparation example 4 in that:
the barium oxide was replaced by an equal amount of barium carbonate.
Examples
The composition of the digital satin protective glaze in examples 1 to 7 is as follows:
table 2 composition (kg) of digital satin protective glaze in examples 1 to 7
Comparative example
The composition of the digital satin protective glaze of comparative examples 1 to 7 is given in table 3 below:
table 3 comparative examples 1-7 composition (kg) of digital satin protective glaze
Comparative example 1
A digital satin protective glaze, differing from example 6 in that:
the proportions of the components are different, and the proportions of the components in this comparative example are shown in table 3 above for comparative example 1.
Comparative example 2
A digital satin protective glaze, differing from example 6 in that:
calcite and washed kaolin were replaced with the same amount of the high-temperature matte frit prepared in preparation example 4.
Comparative example 3
A digital satin protective glaze, differing from example 6 in that:
the weight of the calcined zinc oxide is adjusted from 5kg to 10kg, and the weight of the potassium feldspar is adjusted from 20kg to 15kg.
Comparative example 4
A digital satin protective glaze, differing from example 6 in that:
the weight of barium carbonate is adjusted from 18kg to 22kg, and the weight of potassium feldspar is adjusted from 20kg to 16kg.
Comparative example 5
A digital satin protective glaze, differing from example 6 in that:
the high-temperature matte frit prepared in preparation example 6 was used.
Comparative example 6
A digital satin protective glaze, differing from example 6 in that:
high temperature matte frit the high temperature matte frit prepared in preparation example 7 was used.
Comparative example 7
A digital satin protective glaze, differing from example 6 in that:
the high-temperature matte frit prepared in preparation example 8 was used.
Comparative example 8
A digital satin protective glaze, differing from example 6 in that:
the high temperature matte frit used was the high temperature matte frit prepared in preparative example 9.
Comparative example 9
A digital satin protective glaze, differing from example 6 in that:
the high-temperature matte frit prepared in preparation example 10 was used.
Application example
Application examples 1 to 7 are digital satin protection glazed tiles, and the preparation method thereof comprises the following steps:
removing impurities on the surface of the dried blank, uniformly spraying water on the surface of the cleaned blank, wherein the water spraying amount is controlled to be 4mg/cm 2 Obtaining a wet blank;
uniformly spreading a ground glaze slip on the surface of the wet blank to form a ground glaze layer, wherein the spraying amount of the ground glaze slip is 55mg/cm 2 ；
Spraying and printing brown carved bright ink on the ground glaze layer according to a required pattern to form a pattern layer;
uniformly spreading digital satin protection glaze slip on the pattern layer to form a protection glaze layer, wherein the spraying amount of the digital satin protection glaze slip is 30mg/cm 2 ；
And (3) placing the blank body coated with the protective glaze layer into a kiln, and firing for 50min at the temperature of 1165 ℃.
Wherein, in the glaze slurry of application examples 1-7, the glaze includes 12kg of potash feldspar, 20kg of albite, 5kg of calcined talc, 10kg of calcined alumina, 2kg of calcined zinc oxide, 8kg of barium carbonate, 12kg of nepheline, 12kg of water-washed kaolin and 19kg of quartz; the specific gravity of the ground glaze slurry is controlled to be 1.88, and the screen residue is controlled to be 0.4%.
In the digital satin protection glaze slip, the doping amount of the ceramic dry particle suspending agent is 0.5 percent of the digital satin protection glaze, the specific gravity of the digital satin protection glaze slip is controlled to be 1.25, and the screen residue is controlled to be 0.3 percent.
In addition, the difference between application examples 1 to 7 is that the compositions of the adopted digital satin protection glaze are different, wherein the digital satin protection glaze adopted in application examples 1 to 7 is specifically as follows in table 4:
table 4 application examples 1-7 of the digital satin protective glaze used
Application example 8
A digital satin protection glaze tile, the difference with application example 6 lies in: the adopted ground glaze materials are different. The base glaze in this application example comprises 10kg of potassium feldspar, 20kg of albite, 5kg of calcined talc, 10kg of calcined alumina, 2kg of calcined zinc oxide, 6kg of barium carbonate, 22kg of nepheline, 10kg of water-washed kaolin and 15kg of quartz.
Comparative application example
The difference between one digital satin protection glaze tile in comparative application examples 1 to 9 and application examples 1 to 7 is that the adopted digital satin protection glaze is different, and the digital satin protection glaze adopted in comparative application examples 1 to 9 is as follows in table 5:
table 5 compares the digital satin protective glaze used in application examples 1 to 9
Performance test data
1. Mohs hardness: the detection is carried out according to JCT 908-2013 Artificial Stone.
2. Wear resistance: the test is carried out according to GB/T3810.7-2016, part 7 of the test method of ceramic tiles, namely the measurement of the wear resistance of the surfaces of glazed tiles.
3. Surface quality: 10 products are randomly selected from batch products of the application examples or the comparison application examples for detection, and test results of 90% of the products are taken as representatives.
Stage I: the surface has no defects of bubbles, pinholes, miliaria, collapse and the like, and is smooth and not whitish.
II stage: the surface has a few of defects such as air bubbles, pinholes, miliaria or collapse and the like, and the surface is uneven.
Grade III: the surface has a large number of air bubbles, pinholes, miliaria or collapse and other defects, and the surface is uneven and whitish.
4. Pattern effect: 10 products are randomly selected from batch products of the application examples or the comparative application examples for detection, and the test result of 90% of the products is taken as a representative.
Stage I: the formed pattern is consistent with the expected design pattern, and the color development of the ink-jet ink is clear and has no color difference.
II level: the formed pattern was substantially identical to the intended design pattern, and the inkjet ink developed a clear but yellowish red color.
Grade III: the formed pattern does not match the intended design pattern, but the inkjet ink is clearly developed.
Stage IV: the formed pattern does not match the intended design pattern and the color development of the ink-jet ink is not clear.
5. Surface luminosity: the temperature of 6-8 ℃ meets the requirement.
6. Stain resistance: according to GB/T3810.14-2016 ceramic tile test method part 14: measurement of stain resistance [ ].
Table 6 performance of digital satin-protected glazed tiles in application examples 1-8 and comparative application examples 1-7
Analysis of results
The raw materials used in comparative application example 1 and application example 6 were the same, but the proportions of the components of the raw materials were different. As can be seen from the data in table 6, the ratio of the components not only greatly affects the wear resistance, surface quality and contamination resistance of the digital satin glaze, but also causes the problems that the color development of the inkjet ink is not clear, and the pattern after the tile is molded is different from the expected design pattern.
Compared with the application example 6, the calcite and the washed kaolin in the application example 2 are respectively replaced by the same amount of high-temperature matte clinker, and the data in the table 6 show that the wear resistance of the digital satin protection glaze is reduced, a large number of surface defects are generated, and the stain resistance is obviously reduced after the content of the high-temperature matte clinker is increased and the calcite and the washed kaolin are not added. In addition, the digital satin protection glaze is not beneficial to the dispersion of the ink-jet ink, so that the pattern after the ceramic tile is molded is different from the expected design pattern.
The difference between the application example 3 and the application example 6 is that the content of calcined zinc oxide and potassium feldspar in the digital satin protection glaze is different, and the data in the table 6 show that after the content of calcined zinc oxide and potassium feldspar is changed, a small amount of surface defects appear on the surface of the digital satin protection glaze, the pollution resistance is reduced, but most obviously, the luminosity of the glaze is obviously increased. In addition, a yellowish red color difference is caused in the color development of the inkjet ink.
The difference between the comparative application example 4 and the example 6 is that the contents of barium carbonate and potassium feldspar in the digital satin protection glaze are different, and the data in table 6 show that after the contents of barium carbonate and potassium feldspar are changed, a large amount of surface defects appear on the surface of the digital satin protection glaze, the wear resistance and the stain resistance are reduced, and the luminosity is reduced. In addition, the problem of unclear color development of the inkjet ink is caused, and the formed pattern of the tile does not match the intended design pattern.
Comparative application example 5 differs from application example 6 in the amount of strontium oxide and silica in the high temperature matte frit. It can be seen from the data in table 6 that the abrasion resistance of the digital satin protection glaze is reduced after the content of strontium oxide and silicon dioxide is changed, the color of the inkjet ink is clear, but the formed pattern of the ceramic tile is not consistent with the expected design pattern.
Comparative application example 6 differs from application example 6 in the content of silica and alumina in the high temperature matte frit. Wherein, the content of the aluminum oxide is far higher than that of the application example 6, and the content of the silicon dioxide is far lower than that of the application example 6. It can be seen from the data in table 6 that after the contents of silicon dioxide and aluminum oxide are changed, a large number of surface defects appear on the surface of the digital satin protection glaze, and the wear resistance and the stain resistance are reduced. In addition, the problem of unclear color development of the inkjet ink is caused, and the formed pattern of the tile does not match the intended design pattern.
Comparative application example 7 is different from application example 6 in the content of silica and alumina in the high-temperature matte frit. Wherein, the content of the aluminum oxide is far lower than that of the application example 6, and the content of the silicon dioxide is far higher than that of the application example 6. Combining the data in table 6, it can be seen that after the content of silicon dioxide and aluminum oxide is changed, a small amount of surface defects are generated on the surface of the digital satin protection glaze, the surface is uneven,
wear resistance and stain resistance are also reduced. In addition, the shaped pattern of the tile does not match the intended design pattern.
Comparative application example 8 differs from application example 6 in that the strontium oxide starting material of the high temperature matte frit of comparative application example 8 was replaced with an equal amount of zirconium oxide. As can be seen from the data in table 6, when zirconia was used instead of strontium oxide, the abrasion resistance, surface quality, luminosity and stain resistance of the digital satin glaze did not change much, but the inkjet ink developed a problem of unclear color development, and the molded pattern of the tile did not match the desired design pattern.
Comparative application example 9 differs from application example 6 in that the barium oxide raw material of the high-temperature matte frit in comparative application example 9 was replaced with an equal amount of barium carbonate raw material. As can be seen from the data in table 6, after barium carbonate is used instead of barium oxide, a large amount of carbon dioxide gas cannot be effectively discharged, a large amount of surface defects appear on the glaze surface of the digital satin protective glaze, the wear resistance and the stain resistance are also sharply reduced, and the molded pattern of the ceramic tile is not matched with the expected design pattern.
Application example 8 differs from application example 6 in the selection of the ground coat. The base glaze material selected in application example 8 is not the preferred base glaze material of the present application, and when the base glaze material in application example 8 is selected, although the color development of the inkjet ink is clear, the pattern after the tile is formed does not match the expected pattern.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A digital satin protection glaze is characterized in that: comprises 18 to 22 weight parts of potash feldspar, 4 to 6 weight parts of calcite, 7.5 to 8.5 weight parts of calcined talc, 5 to 7 weight parts of calcined kaolin, 8 to 12 weight parts of water-washed kaolin, 4 to 6 weight parts of calcined zinc oxide, 16 to 20 weight parts of barium carbonate and 30 to 40 weight parts of high-temperature matte frit; the high-temperature matte frit is prepared from the following components in percentage by weight: 50-55% of silicon dioxide, 17-22% of aluminum oxide, 10-11% of barium oxide, 3.5-4.0% of zinc oxide, 2.5-4.5% of strontium oxide, 2.65-3.12% of potassium oxide, 3.70-4.43% of sodium oxide, 2.5-4.0% of calcium oxide, 0.05-0.15% of magnesium oxide, 0.1-0.3% of phosphorus pentoxide and 0.2-0.3% of fluorine-containing compound.
2. The digital satin protection glaze of claim 1 wherein: the high-temperature matte frit is prepared from the following components in percentage by weight: 52 to 53 percent of silicon dioxide, 18 to 20 percent of aluminum oxide, 10.5 to 11 percent of barium oxide, 3.5 to 3.6 percent of zinc oxide, 3.0 to 3.62 percent of strontium oxide, 2.85 to 3.05 percent of potassium oxide, 4.05 to 4.25 percent of sodium oxide, 3.0 to 3.5 percent of calcium oxide, 0.08 to 0.1 percent of magnesium oxide, 0.15 to 0.2 percent of phosphorus pentoxide and 0.25 to 0.3 percent of fluorine-containing compound.
3. The digital satin protection glaze of claim 1, wherein: the fluorine-containing compound is one or a composition of more of calcium fluoride, fluorite and sodium fluosilicate.
4. A digital satin protective glaze according to any one of claims 1 to 3, characterized in that: the preparation method of the high-temperature matte frit comprises the following steps:
uniformly mixing silicon dioxide, aluminum oxide, barium oxide, zinc oxide, strontium oxide, alkaline earth metal oxide, alkali metal oxide, opacifier and other components according to the proportion, melting at 1530-1550 ℃, cooling and crushing to obtain the high-temperature matte frit.
5. A digital satin protection glaze slip is characterized in that: the digital satin protection glaze comprises a ceramic dry particle suspending agent, water and the digital satin protection glaze material as claimed in any one of claims 1 to 4; the addition amount of the ceramic dry particle suspending agent is 0.4-0.6% of the digital satin protection glaze, and the water is used for adjusting the specific gravity of the digital satin protection glaze slurry to 1.2-1.3; wherein, the digital satin protection glaze slurry is sieved by a 325 mesh sieve, and the screen residue rate is controlled to be 0.2-0.4%.
6. The utility model provides a digit satin light protection glaze ceramic tile which characterized in that: comprises a body layer, a ground glaze layer, a pattern layer and a protective glaze layer which are arranged in sequence; the ground glaze layer is formed by firing ground glaze slurry sprayed on the surface of a blank body layer, the protective glaze layer is formed by firing digital satin protective glaze slurry sprayed on the outer side of the pattern layer, and the digital satin protective glaze slurry adopts the digital satin protective glaze slurry of claim 5.
7. A digital satin-protected glazed tile according to claim 6, wherein: the ground glaze in the ground glaze slurry comprises 12-18 parts by weight of potassium feldspar, 15-20 parts by weight of albite, 3-5 parts by weight of calcined talc, 6-10 parts by weight of calcined alumina, 2-4 parts by weight of calcined zinc oxide, 8-12 parts by weight of barium carbonate, 12-18 parts by weight of nepheline, 8-12 parts by weight of water-washed kaolin and 16-24 parts by weight of quartz.
8. A digital satin-protected glazed tile according to claim 7, wherein: the ground glaze slurry comprises ground glaze and water, wherein the water is used for adjusting the specific gravity of the ground glaze slurry to 1.85-1.89; wherein, the ground glaze slurry is sieved by a 325-mesh sieve, and the residue rate is controlled to be 0.3-0.5%.
9. A process for the preparation of a digital satin-protected glazed tile according to any one of claims 6 to 8, comprising the following steps:
removing impurities on the surface of the dried green body, and uniformly spraying water on the surface of the cleaned green body, wherein the water spraying amount is controlled to be 3-5mg/cm 2 To obtain a wetWet green bodies;
uniformly distributing ground glaze slurry on the surface of the wet blank to form a ground glaze layer;
according to the required pattern, ink is sprayed and printed on the ground coat layer to form a pattern layer;
uniformly spreading digital satin protection glaze slip on the pattern layer to form a protection glaze layer;
and (3) placing the blank body coated with the protective glaze layer into a kiln, and firing at 1140-1185 ℃ for 40-60min to obtain the digital satin protective glaze ceramic tile.
10. The method for preparing a digital satin-protected glazed tile according to claim 9, wherein the spraying amount of the ground glaze slip is 50-60mg/cm 2 The spraying amount of the digital satin protection glaze slip is 27-32mg/cm 2 。
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| CN117720366A (en) * | 2024-02-07 | 2024-03-19 | 佛山市三水新明珠建陶工业有限公司 | Ceramic fluorescent glazed tile and preparation method thereof |
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| CN114292026A (en) * | 2022-01-20 | 2022-04-08 | 广东永航新材料实业股份有限公司 | Satin glaze suitable for quick firing and having special crystallization effect and preparation method thereof |
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| CN107056337A (en) * | 2017-05-11 | 2017-08-18 | 佛山市陶莹新型材料有限公司 | A kind of satin glaze makes formula |
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