CN115849713B - Digital satin protective glaze and product and preparation method thereof - Google Patents
Digital satin protective glaze and product and preparation method thereof Download PDFInfo
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Abstract
The application discloses a digital satin protective glaze, a product and a preparation method thereof, and relates to the field of ceramic materials. The digital satin protective glaze comprises 18-22 parts by weight of potassium feldspar, 4-6 parts by weight of calcite, 7.5-8.5 parts by weight of calcined talcum, 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 Wen Yaguang frit. Gao Wenya the optical 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 protective glaze is flat and flawless, natural in light sensation, free of condensation, wide in firing range, good in antifouling property, excellent in wear resistance and free of affecting clear color development of the ink-jet ink.
Description
Technical Field
The application relates to the field of ceramic materials, in particular to a digital satin protective glaze, a product and a preparation method thereof.
Background
The modern ceramic technology ink-jet equipment pushes out full digital ink and half digital ink, and the digital ink has narrow sintering application range in the high-temperature sintering process of ceramic tile products due to fine grinding (usually with fineness of 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 surface luminosity of the glaze is lower than 4 ℃ by a luminosity meter, the hand feeling is rough, and the surface is easy to absorb dirt; when the firing temperature of the kiln is higher than 1175 ℃, the glossiness of the glaze is higher than 15 ℃, and meanwhile, the surface defects such as collapse, foaming, pinholes, prickly heat and the like are easy to occur on the surface of the glaze.
The digital protective glaze can flexibly adjust the firing range, but the digital protective glaze in the prior related technology is generally a high-calcium system, and the problems of more surface defects, poor wear resistance, easy color development of inkjet ink, etc. are generally caused. In addition, the light pollution is easily caused by the excessively high luminosity of the digital protective glaze. Therefore, how to obtain the digital protective glaze which has few surface defects, good wear resistance, natural light sensation and clear color development of the inkjet ink has great economic value.
Disclosure of Invention
In order to solve the problems that the existing digital protection glaze has a plurality of surface defects, poor wear resistance and poor light sensation and cannot enable the inkjet ink to develop color clearly, the application provides a digital satin protection glaze, a product and a preparation method thereof.
In a first aspect, the present application provides a digital satin protection glaze, which adopts the following technical scheme:
a digital satin protective glaze comprises 18-22 parts by weight of potassium feldspar, 4-6 parts by weight of calcite, 7.5-8.5 parts by weight of calcined talcum, 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 Wen Yaguang frit; the high Wen Yaguang 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, aluminum oxide and the like which play a role in framework support are mixed with potassium oxide, sodium oxide, calcium oxide, magnesium oxide and the like and melted into Gao Wenya light frit, and after the Wen Yaguang light frit which is higher than that of the relatively fusible material is obtained through one-time melting, the framework materials can be promoted to be uniformly dispersed in the glaze, so that the hardness and the wear resistance of the glaze are improved. Because the high Wen Yaguang frit in the application can not be completely melted with the glaze, the glaze has fine sand grain hand feeling, the glaze luminosity is 6-8 degrees, and no light is concentrated.
In addition, the application not only widens the firing range to 1140-1185 ℃ by matching the potash feldspar, calcite, calcined talcum, calcined kaolin, water-washed kaolin, calcined zinc oxide, barium carbonate and specific high Wen Yaguang frit, but also effectively improves the hardness and wear resistance of the glaze, is beneficial to the discharge of gas in the firing process, effectively prevents the problems of easy collapse, foaming, pinholes, prickly heat and other surface defects on the glaze surface, and has good antifouling property. In addition, the digital protective glaze also does not influence the clear color development of ink-jet ink, such as red ink, yellow ink, brown ink, black ink and the like, and does not generate chromatic aberration. When the ink-jet ink adopts the fine-engraving and bright-light ink-jet ink, the digital satin protective glaze and the fine-engraving and bright-light ink-jet ink effect form contrast, so that the texture of the digital satin protective glaze is finer.
Preferably, the Gao Wenya optical frit is prepared from the following components in percentage by weight: 52-53% silicon dioxide, 18-20% aluminum oxide, 10.5-11% barium oxide, 3.5-3.6% zinc oxide, 3.0-3.62% strontium oxide, 2.85-3.05% potassium oxide, 4.05-4.25% sodium oxide, 3.0-3.5% calcium oxide, 0.08-0.1% magnesium oxide, 0.15-0.2% phosphorus pentoxide and 0.25-0.3% fluorine-containing compound. The high Wen Yaguang frit can further improve the hardness and wear resistance of the digital satin protective glaze.
Optionally, the fluorine-containing compound is any one or a combination of a plurality of calcium fluoride, fluorite and sodium fluosilicate.
Preferably, the preparation method of the Gao Wenya optical 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 Wen Yaguang frit.
The high Wen Yaguang frit prepared by the preparation method is favorable for uniformly melting all raw materials and effectively removing organic matters carried in the raw materials.
In a second aspect, the present application provides a digital satin protection glaze slip, including a ceramic dry particle suspending agent, water and any one of the 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 be 1.2-1.3; wherein, the digital satin protection glaze slip is screened 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 protective glaze slip is controlled to be 0.2-0.4%, the temperature resistance and the uniform dispersion performance of the digital satin protective glaze are good; in addition, the specific gravity of the digital satin protective glaze is not too high, and when the specific gravity is too high, the glaze surface is difficult to disperse, the uneven coverage is easy, and the phenomena of bulk crystal blocks and white are easy to generate.
In a third aspect, the present application provides a digital satin protection glazed tile, which adopts the following technical scheme:
the digital satin protection glaze ceramic tile comprises a blank layer, a ground glaze layer, a pattern layer and a protection glaze layer which are sequentially arranged; the protective glaze layer is formed by firing digital satin protective glaze slurry sprayed on the outer side of the pattern layer.
Preferably, the primer in the primer slip comprises 12-18 parts by weight of potassium feldspar, 15-20 parts by weight of albite, 3-5 parts by weight of calcined talcum, 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 under glaze can improve the adaptability of the under glaze to the blank layer through the cooperation of the calcined alumina and the nepheline, so that the under glaze can be adapted to various different blanks, the possibility of underglaze or stripping is reduced, and the quality stability of the digital satin protection glaze ceramic tile is improved. Secondly, the primer and the digital satin protective glaze have good suitability, and the matching of the primer and the digital satin protective glaze not only can obtain a flat digital satin protective glaze surface, but also can promote the dispersion of ink-jet ink, so that the forming pattern of the digital satin protective glaze ceramic tile is consistent with the expected design pattern.
Preferably, the primer slurry comprises a primer and water, wherein the water is used for adjusting the specific gravity of the primer slurry to be 1.85-1.89; wherein, the ground glaze slurry is sieved by a 325-mesh sieve, and the screen residue rate is controlled to be 0.3-0.5%.
Wherein, when the screen residue of the ground coat slurry is controlled to be 0.3-0.5%, the temperature resistance and the uniform dispersion performance of the ground coat are good.
In a fourth aspect, the present application provides a method for preparing a digital satin protection glazed tile, which adopts the following technical scheme: the preparation method of the digital satin protection glaze ceramic tile comprises 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 Obtaining a wet blank;
uniformly distributing and applying base glaze slurry on the surface of the wet blank body to form a base glaze layer;
spraying ink on the primer layer according to the required pattern to form a pattern layer;
uniformly distributing digital satin protective glaze slurry on the pattern layer to form a protective glaze layer;
and (3) placing the green body coated with the protective glaze layer into a kiln, and sintering at 1140-1185 ℃ for 40-60min to obtain the digital satin protective glaze ceramic tile.
The green body is wetted by spraying water before the ground glaze slurry is applied, so that the possibility of glaze shrinkage or stripping is reduced, and the dispersibility of the ground glaze and the combination stability of the ground glaze and the green body are improved; in addition, the firing of the green body after the protective glaze layer is applied in the temperature range is favorable for obtaining the ceramic tile with stable effect and high qualification rate.
Preferably, the spraying amount of the underglaze slip 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 coat layer and the green body layer and the ground coat layer and the protective glaze layer.
In summary, the technical scheme of the application at least comprises the following beneficial effects:
(1) The digital satin protective glaze has the advantages of surface luminosity of 6-8 degrees, natural light sensation, no condensation, fine hand feeling, fine sand grain feeling, smooth surface, no defects of ceramic products such as pinholes, prickly heat and the like, wide firing adjustable range digital ink, good surface antifouling property, wear resistance, qualified physicochemical property and the like.
(2) The digital satin protective glaze can promote the color development of the inkjet ink, and the color development is clear and stable.
(3) The primer and the digital satin protective glaze of the application can not influence the dispersion of the ink-jet ink, and can promote the digital satin protective glaze ceramic tile to obtain the expected design pattern.
Drawings
Fig. 1 is a schematic diagram of a digital satin protection glazed tile according to the present application.
Detailed Description
First, the application discloses a digital satin protective 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 protective glaze comprises 18-22 parts by weight of potassium feldspar, 4-6 parts by weight of calcite, 7.5-8.5 parts by weight of calcined talcum, 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 Wen Yaguang frit. The high Wen Yaguang 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 Wen Yaguang frit is made from the following components in weight percent: 52-53% silicon dioxide, 18-20% aluminum oxide, 10.5-11% barium oxide, 3.5-3.6% zinc oxide, 3.0-3.62% strontium oxide, 2.85-3.05% potassium oxide, 4.05-4.25% sodium oxide, 3.0-3.5% calcium oxide, 0.08-0.1% magnesium oxide, 0.15-0.2% phosphorus pentoxide and 0.25-0.3% fluorine-containing compound.
The preparation method of the Gao Wenya optical 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, and then melting, cooling and ball milling the mixture at 1530-1550 ℃ to obtain the high Wen Yaguang frit.
In the raw materials for preparing the digital satin protective glaze, potassium feldspar, calcite and talcum are used as fluxes, so that the firing temperature of the glaze can be reduced. The calcined kaolin and the water-washed kaolin have cohesiveness, so that the dispersibility and stability of the digital satin protective glaze can be improved, but the mixing amount of the calcined kaolin and the water-washed kaolin is not too high, otherwise, the digital satin protective glaze is easy to generate pinholes, miliaria and other surface defects. The calcined zinc oxide can reduce the firing temperature of the glaze, but when the doping 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 turn into yellowish red. The barium carbonate can reduce the luminosity of the glaze, so that the glaze does not gather light, and the light sensation is natural. 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 Gao Wenya light frit, the high Wen Yaguang frit can promote glaze to form a stable framework, is beneficial to improving the strength and wear resistance of the glaze, and has the advantage of good appearance. The high Wen Yaguang frit content is too low to easily reduce the hardness, strength and wear resistance of the glaze, and the high Wen Yaguang frit content is too high to easily cause the defects of uneven surface, poor antifouling property, white glaze and the like of the glaze.
The silica and the aluminum oxide in the Gao Wenya light frit play a role in framework support. Wherein, too low an amount of aluminum oxide can lead to a reduction in the hardness and wear resistance of the glaze, and too high an amount can lead to whitening of the glaze.
Both potassium oxide and sodium oxide act as fluxes. The potassium oxide is favorable for color development of the ink-jet ink, but excessive doping amount of the potassium oxide easily causes color development of the ink-jet ink to be red. Therefore, sodium oxide is simultaneously doped as a flux, and after sodium oxide is added, the fusion property of the glaze is better, and the stationary phase is better.
Magnesium oxide and calcium oxide act as fluxing agents. The fluxing effect of the calcium oxide is better than that of magnesium oxide, however, excessive calcium oxide is doped to easily cause surface defects such as pinholes, miliaria and the like on the glaze, the glossiness of the glaze 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 doped as a fluxing agent, and after the magnesium oxide is doped, not only the melting performance of the glaze can be improved, but also the generation of surface defects of the glaze can be reduced.
The strontium oxide can improve the fluidity of the glaze material in high-temperature melting, is beneficial to the discharge of gas, and prevents the generation of surface defects such as pinholes, miliaria and the like on the surface of the glaze material. However, when the amount of strontium oxide added is too high, the fluidity of the glaze is too high, and the problem that the rapid solidification of the engraved lines is impossible easily occurs, so that the final formed pattern of the tile does not coincide with the expected design pattern.
The fluorine-containing compound can be any one or a combination of a plurality of calcium fluoride, fluorite and sodium fluosilicate.
The application also discloses a digital satin protection glaze slip which comprises the digital satin protection glaze, a ceramic dry particle suspending agent and water, wherein the dosage 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:
mixing the digital satin protective glaze and the ceramic dry particle suspending agent, adding water to adjust the specific gravity to 1.2-1.3, ball milling, sieving with a 325-mesh sieve, and controlling the screen residue to be 0.2-0.4%.
When the screen residue of the digital satin protective glaze slip is controlled to be 0.2-0.4%, the temperature resistance and the uniform dispersion performance of the digital satin protective glaze are good.
Third, referring to fig. 1, the application discloses a digital satin protection glazed tile, which comprises a blank 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.
Wherein, the primer in the primer slip 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 talcum, 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 matching of the calcined alumina and the nepheline can improve the adaptability of the base glaze to the blank layer, so that the base glaze can be adapted to various different blanks, the possibility of underglaze or stripping is reduced, and the quality stability of the digital satin protection glaze ceramic tile is improved. And secondly, the primer has good suitability with the digital satin protective glaze, and is favorable for obtaining a flat digital satin protective glaze surface. In addition, the combination of the base glaze and the digital satin protective glaze can promote the dispersion of the inkjet ink, so that the molding pattern of the digital satin protective glaze ceramic tile is consistent with the expected design pattern.
Preferably, the preparation method of the underglaze slip 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 to be 0.3-0.5%.
Wherein, when the screen residue of the ground coat slurry is controlled to be 0.3-0.5%, the temperature resistance and the uniform dispersion performance of the ground coat are good.
Third, 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 body, and uniformly spraying water on the surface of the cleaned blank body, wherein the water spraying amount is controlled to be 3-5mg/cm 2 Obtaining a wet blank;
s2, uniformly distributing and applying base glaze slurry on the surface of the wet blank to form a base glaze layer, wherein the spraying amount of the base glaze slurry is 50-60mg/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the Spraying ink on the primer layer according to the required pattern to form a pattern layer; the ink can be red ink, yellow ink, brown ink, black ink and the like according to the color requirement, or refined bright ink or refined matte ink can be selected according to the light sensation requirement, and the ink can be specifically selected according to the actual requirement;
uniformly distributing digital satin protective glaze slurry on the pattern layer to form a protective glaze layer, wherein the spraying amount of the digital satin protective glaze slurry is 27-32mg/cm 2 ；
And (3) placing the green 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.
The green body is wetted by spraying water before the ground glaze slurry is applied, so that the possibility of glaze shrinkage or stripping is reduced, and the dispersibility of the ground glaze and the combination stability of the ground glaze and the green body are improved; in addition, the firing of the green body after the protective glaze layer is applied in the temperature range is favorable for obtaining the ceramic tile with stable effect and high qualification rate.
The present application will be described in further detail with reference to specific preparation examples, comparative examples, application examples and comparative application examples.
Gao Wenya preparation example of optical frit
The composition of the high Wen Yaguang frit in preparation examples 1-8 is shown in table 1 below:
TABLE 1 composition (kg) of high Wen Yaguang frit in PREPARATIVE EXAMPLES 1-8
Wherein the preparation examples 1 to 5 differ in the amounts of the respective components. Preparation 6 differs from preparation 4 in that the silica content differs from the strontium oxide content; preparation examples 7 to 8 differ from preparation example 4 in the content of silica and alumina.
In addition, the preparation method of the high Wen Yaguang frit in preparation examples 1-8 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 the proportion, uniformly melting at 1530 ℃, cooling and crushing to obtain a high Wen Yaguang frit, wherein the fineness of the high Wen Yaguang frit is 300-400 meshes.
Preparation example 9
A high Wen Yaguang frit, differing from preparation 4 in:
the strontium oxide is replaced with an equivalent amount of zirconium oxide.
Preparation example 10
A high Wen Yaguang frit, differing from preparation 4 in:
the barium oxide is replaced by an equivalent amount of barium carbonate.
Examples
The compositions of the satin protective glazes in examples 1 to 7 are shown in Table 2 below:
table 2 composition (kg) of the several satin protective glazes in examples 1 to 7
Comparative example
The compositions of the satin protective glazes in comparative examples 1 to 7 are shown in Table 3 below:
table 3 composition (kg) of the several satin protective glazes in comparative examples 1 to 7
Comparative example 1
The difference between the digital satin protective glaze and the example 6 is that:
the proportions of the components are different, and the proportion of the components in this comparative example is shown in comparative example 1 in the above table 3.
Comparative example 2
The difference between the digital satin protective glaze and the example 6 is that:
calcite and water-washed kaolin were each replaced with equal amounts of the high Wen Yaguang frit prepared in preparation 4.
Comparative example 3
The difference between the digital satin protective glaze and the example 6 is that:
the weight of the calcined zinc oxide was adjusted to 10kg from 5kg, and the weight of the potassium feldspar was adjusted to 15kg from 20 kg.
Comparative example 4
The difference between the digital satin protective glaze and the example 6 is that:
the weight of barium carbonate was adjusted from 18kg to 22kg, and the weight of potassium feldspar was adjusted from 20kg to 16kg.
Comparative example 5
The difference between the digital satin protective glaze and the example 6 is that:
gao Wenya the high Wen Yaguang frit prepared in preparation example 6 was used as the light frit.
Comparative example 6
The difference between the digital satin protective glaze and the example 6 is that:
gao Wenya A high Wen Yaguang frit was prepared using the procedure of preparation 7.
Comparative example 7
The difference between the digital satin protective glaze and the example 6 is that:
gao Wenya the high Wen Yaguang frit prepared in preparation example 8 was used as the light frit.
Comparative example 8
The difference between the digital satin protective glaze and the example 6 is that:
gao Wenya the high Wen Yaguang frit prepared in preparation example 9 was used as the light frit.
Comparative example 9
The difference between the digital satin protective glaze and the example 6 is that:
gao Wenya the high Wen Yaguang frit prepared in preparation example 10 was used as the light frit.
Application example
Application examples 1-7 are digital satin protection glaze ceramic tiles, and the preparation method comprises 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 4mg/cm 2 Obtaining a wet blank;
uniformly distributing and applying base glaze slurry on the surface of the wet blank body to form a base glaze layer, wherein the spraying amount of the base glaze slurry is 55mg/cm 2 ；
Spraying brown refined and carved light ink on the ground coat layer according to the required pattern to form a pattern layer;
uniformly distributing digital satin protective glaze slurry on the pattern layer to form a protective glaze layer, wherein the spraying amount of the digital satin protective glaze slurry is 30mg/cm 2 ；
And (3) placing the green body with the protective glaze layer in a kiln, and sintering for 50min at the temperature of 1165 ℃.
Wherein, in the underglaze slip in application examples 1 to 7, the underglaze material comprises 12kg of potassium feldspar, 20kg of albite, 5kg of calcined talcum, 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 underglaze slip is controlled to be 1.88, and the screen residue is controlled to be 0.4%.
In the digital satin protection glaze slip, the mixing amount of the ceramic dry particle suspending agent is 0.5% 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%.
In addition, the application examples 1 to 7 differ in the composition of the digital satin protection glaze used, wherein the digital satin protection glaze used in the application examples 1 to 7 is specifically shown in the following table 4:
table 4 digital satin protective glazes used in application examples 1 to 7
Application example 8
The difference between the digital satin protection glazed tile and the application example 6 is that: the ground coat adopted is different. The ground coat in this application example comprises 10kg potassium feldspar, 20kg albite, 5kg calcined talc, 10kg calcined alumina, 2kg calcined zinc oxide, 6kg barium carbonate, 22kg nepheline, 10kg water-washed kaolin, and 15kg quartz.
Comparative application example
The difference between the digital satin protection glaze tile of comparative examples 1 to 9 and the digital satin protection glaze tile of examples 1 to 7 is that the digital satin protection glaze material used in comparative examples 1 to 9 is shown in the following table 5:
table 5 comparative examples 1 to 9 of the digital satin protective glazes used
Performance test data
1. Mohs hardness: the detection is performed with reference to JCT 908-2013, artificial stone.
2. Abrasion resistance: the detection is carried out by referring to GB/T3810.7-2016, method for testing ceramic tiles, section 7 of the method for testing ceramic tiles, determination of the wear resistance of the surface of glazed tiles.
3. Surface quality: 10 products were randomly selected from the batch of the respective application examples or the comparative application examples for detection, and the test results of 90% of the products were used as a representative.
Stage I: the surface has no defects of bubbles, pinholes, miliaria, collapse and the like, and the surface is flat and does not turn white.
Stage II: the surface has a few bubbles, pinholes, miliaria or collapse and other defects, and the surface is uneven.
Class III: the surface has a large number of defects such as bubbles, pinholes, miliaria or collapse, etc., and the surface is uneven and whitish.
4. Pattern effect: 10 products were randomly selected from the batch of the respective application examples or the comparative application examples for detection, and the test results of 90% of the products were used as a representative.
Stage I: the formed pattern is consistent with the expected design pattern, and the color of the inkjet ink is clear and no color difference exists.
Stage II: the formed pattern is basically consistent with the expected design pattern, and the color of the ink-jet ink is clear but the color is yellow and red.
Class III: the formed pattern does not match the intended design pattern, but the color development of the inkjet ink is clear.
Grade IV: the molded pattern does not conform to the intended design pattern and the color development of the inkjet ink is not clear.
5. Surface luminosity: 6-8 degrees to meet the requirements.
6. Stain resistance: according to GB/T3810.14-2016 section 14 of the ceramic tile test method: the measurement of contamination resistance.
Table 6 properties of the several satin protective glazed tiles of application examples 1 to 8 and comparative application examples 1 to 7
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Analysis of results
Comparative application example 1 was identical to the raw material used in application example 6, 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 each component has a great influence on the abrasion resistance, surface quality and contamination resistance of the satin glaze, and also causes problems of unclear color development of the inkjet ink and different patterns after tile molding from expected design patterns.
Comparative application example 2 compared with application example 6, the calcite and the water-washed kaolin in comparative application example 2 were replaced with equal amounts of high Wen Yaguang frit, respectively, and it can be seen from the data in table 6 that the content of the high Wen Yaguang frit was increased, and the abrasion resistance of the digital satin protective glaze was reduced and a large number of surface defects were generated, and the stain resistance was significantly reduced, after no calcite and water-washed kaolin were added. In addition, the digital satin protective glaze is unfavorable for 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 comparative application example 3 and application example 6 is that the contents of calcined zinc oxide and potassium feldspar in the digital satin protective glaze are different, and the combination of the data in table 6 shows that after the contents of calcined zinc oxide and potassium feldspar are changed, a small amount of surface defects appear on the surface of the digital satin protective glaze, the stain resistance is reduced, but the most obvious is that the luminosity of the glaze is obviously increased. In addition, the color development of the inkjet ink is caused to occur as a yellow-red-biased color difference.
The difference between comparative application example 4 and example 6 is that the contents of barium carbonate and potassium feldspar in the digital satin protective glaze are different, and it is seen from the data in table 6 that after the contents of barium carbonate and potassium feldspar are changed, a large number of surface defects, abrasion resistance and pollution resistance and luminosity decrease appear on the surface of the digital satin protective glaze. In addition, the problem of unclear color development of the inkjet ink is caused, and the formed pattern of the ceramic tile is not matched with the expected design pattern.
Comparative example 5 differs from example 6 in the content of strontium oxide and silica in the high Wen Yaguang frit. As can be seen from the data in table 6, after the content of strontium oxide and silicon dioxide is changed, the abrasion resistance of the digital satin protective glaze is reduced, the color development of the inkjet ink is clear, but the molding pattern of the tile does not coincide with the expected design pattern.
Comparative example 6 differs from example 6 in the content of silica and alumina in the high Wen Yaguang frit. Wherein the content of aluminum oxide is far higher than that of application example 6, and the content of silicon dioxide is far lower than that of application example 6. As can be seen from the data in table 6, the surface of the digital satin protective glaze has a number of surface defects, and the abrasion resistance and stain resistance are reduced after the contents of silica and alumina are changed. In addition, the problem of unclear color development of the inkjet ink is caused, and the formed pattern of the ceramic tile is not matched with the expected design pattern.
Comparative example 7 differs from example 6 in the silica content and the alumina content of the high Wen Yaguang frit. Wherein the content of aluminum oxide is far lower than that of application example 6, and the content of silicon dioxide is far higher than that of application example 6. As can be seen from the data in table 6, the surface of the digital satin protective glaze produced a small amount of surface defects and surface irregularities,
the abrasion resistance and the stain resistance are also reduced. In addition, the tile molding pattern does not match the intended design pattern.
Comparative application 8 differs from application 6 in that the strontium oxide starting material of the high Wen Yaguang frit of comparative application 8 was replaced with an equivalent amount of zirconium oxide. As can be seen from the data in table 6, the wear resistance, surface quality, luminosity and stain resistance of the digital satin protective glaze are not greatly changed after the zirconia is used for replacing the strontium oxide, but the problem of unclear color development of the inkjet ink is caused, and the formed pattern of the ceramic tile is not consistent with the expected design pattern.
Comparative application 9 differs from application 6 in that the barium carbonate starting material of the high Wen Yaguang frit of comparative application 9 was replaced with an equivalent amount of barium carbonate starting 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, and the surface defect, wear resistance and dirt resistance of the glaze surface of the digital satin protection glaze are also drastically reduced, and meanwhile, the molding pattern of the tile is not matched with the expected design pattern.
Application example 8 differs from application example 6 in the choice of primer. The primer selected in application example 8 is not a preferable primer of the present application, and when the primer of application example 8 is selected, the inkjet ink does not match the intended pattern although the color is clear.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (9)
1. The utility model provides a digital satin protection glaze which characterized in that: comprises 18 to 22 weight parts of potassium feldspar, 4 to 6 weight parts of calcite, 7.5 to 8.5 weight parts of calcined talcum, 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 Wen Yaguang frit; the Gao Wenya optical frit is prepared from the following components in percentage by weight: 52-53% silicon dioxide, 18-20% aluminum oxide, 10.5-11% barium oxide, 3.5-3.6% zinc oxide, 3.0-3.62% strontium oxide, 2.85-3.05% potassium oxide, 4.05-4.25% sodium oxide, 3.0-3.5% calcium oxide, 0.08-0.1% magnesium oxide, 0.15-0.2% phosphorus pentoxide and 0.25-0.3% fluorine-containing compound.
2. The digital satin protection glaze according to claim 1, wherein: the fluorine-containing compound is selected from any one or a combination of a plurality of calcium fluoride, fluorite and sodium fluosilicate.
3. A digital satin protection glaze according to any one of claims 1 to 2, wherein: the preparation method of the Gao Wenya optical 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, and then melting, cooling and crushing the mixture at 1530-1550 ℃ to obtain the high Wen Yaguang frit.
4. A digital satin protection glaze slip, which is characterized in that: a digital satin protective glaze comprising a ceramic dry particle suspending agent, water, and a water-soluble polymer as defined in any one of claims 1 to 3; the addition amount of the ceramic dry particle suspending agent is 0.4-0.6% of the weight of the digital satin protection glaze, and the water is used for adjusting the specific gravity of the digital satin protection glaze slurry to be 1.2-1.3; wherein, the digital satin protection glaze slip is screened by a 325 mesh sieve, and the screen residue rate is controlled to be 0.2-0.4%.
5. The utility model provides a digital satin protection glaze ceramic tile which characterized in that: comprises a green body layer, a ground coat layer, a pattern layer and a protective glaze layer which are sequentially arranged; 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 according to claim 4.
6. The digital satin protection glazing tile according to claim 5 wherein: the ground glaze material 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 talcum, 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.
7. The digital satin protection glazing tile according to claim 6 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 be 1.85-1.89; wherein, the ground glaze slurry is sieved by a 325-mesh sieve, and the screen residue rate is controlled to be 0.3-0.5%.
8. A method for preparing a digital satin protection glazing tile according to any one of claims 5 to 7, comprising the steps of:
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 Obtaining a wet blank;
uniformly distributing and applying base glaze slurry on the surface of the wet blank body to form a base glaze layer;
spraying ink on the primer layer according to the required pattern to form a pattern layer;
uniformly distributing digital satin protective glaze slurry on the pattern layer to form a protective glaze layer;
and (3) placing the green body coated with the protective glaze layer into a kiln, and sintering at 1140-1185 ℃ for 40-60min to obtain the digital satin protective glaze ceramic tile.
9. The method for preparing a digital satin protection glazed tile according to claim 8, wherein the spraying amount of the underglaze 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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| 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 |
| CN111875415A (en) * | 2020-08-11 | 2020-11-03 | 佛山市三水新明珠建陶工业有限公司 | Method for manufacturing soft glazed ceramic chip |
| CN113603510A (en) * | 2021-08-03 | 2021-11-05 | 天欣科技股份有限公司 | Wet water anti-slip antibacterial matt ceramic tile and preparation method thereof |
| CN113912294A (en) * | 2021-10-22 | 2022-01-11 | 广东清远蒙娜丽莎建陶有限公司 | Satin glaze, satin glazed tile and preparation method thereof |
| 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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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111875415A (en) * | 2020-08-11 | 2020-11-03 | 佛山市三水新明珠建陶工业有限公司 | Method for manufacturing soft glazed ceramic chip |
| CN113603510A (en) * | 2021-08-03 | 2021-11-05 | 天欣科技股份有限公司 | Wet water anti-slip antibacterial matt ceramic tile and preparation method thereof |
| CN113912294A (en) * | 2021-10-22 | 2022-01-11 | 广东清远蒙娜丽莎建陶有限公司 | Satin glaze, satin glazed tile and preparation method thereof |
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