Detailed Description
The invention provides a ceramic tile and a preparation method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by taking examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The embodiment of the invention provides a ceramic tile which comprises a blank layer, a ground glaze layer, a pattern layer, a surface glaze layer and a texture layer arranged between the pattern layer and the surface glaze layer. The ground coat layer is prepared from high-temperature matte glaze, can better shield the ground color of the ceramic tile, and can be prevented from being fused with the texture layer and the surface glaze layer into a whole due to higher melting temperature, so that the pattern is fuzzy. The pattern layer is made of conventional ceramic color ink and is printed on the ground coat layer through an ink-jet printer according to a preset pattern or color to form a main pattern or color of the surface of the tile. The texture layer is obtained by interaction of high-gloss ceramic ink printed on the pattern layer and the overglaze layer, and the high-gloss ceramic ink comprises the following raw material components: and the silicon dioxide, the zinc oxide, the calcium oxide, the boron trioxide and the bismuth trioxide are printed on the pattern layer by an ink-jet printer and only cover part of the pattern layer. The texture layer may be a predetermined pattern texture, such as a texture predetermined to highlight the pattern contour of the pattern layer, a regular texture, or a randomly printed texture. The overglaze layer is prepared from dry grain glaze, the dry grain glaze of the overglaze layer can act with high-gloss ceramic ink of the texture layer to form high-gloss texture, the high-gloss texture effect and the part of the overglaze layer, which is not reacted with the texture layer, form gloss contrast, and the gloss contrast enables the overglaze layer and the texture layer to form visual three-dimensional effect under the condition that the surface of the brick is flat, and the specific effect is shown in fig. 1 and fig. 2.
The ceramic tile with the contrast glossiness forms a three-dimensional visual effect through the glossiness difference of the texture layer and the overglaze layer, wherein after the texture layer and the overglaze layer are interacted, the glossiness of the texture layer can reach 35-60 degrees, and the glossiness of the overglaze layer, which is not interacted with the texture layer, is 4-13 degrees. Because the surface is flat and smooth, the dirt is not easy to store, and the dirt is easier to be managed while enjoying the stereoscopic vision effect.
In one embodiment, the high-gloss ceramic ink comprises the following raw material components in parts by weight: 20-50 parts of silicon dioxide, 5-15 parts of aluminum oxide, 3-10 parts of zinc oxide, 5-15 parts of calcium oxide, 10-30 parts of boron trioxide and 5-15 parts of bismuth trioxide. The silica and the boron trioxide are glass forming agents, the silica and the boron trioxide are combined with each other in a tetrahedral form in a glaze layer to form an irregular network which is a glass phase main body, and the glossiness is stronger when the number of glass phases is larger. The added zinc oxide, calcium oxide and bismuth trioxide have the fluxing function, the firing temperature can be reduced, the formation of a glass phase is promoted, and the glossiness of a texture layer is improved, so that the texture layer has high brightness.
Further, the high-gloss ceramic ink comprises the following raw material components in parts by weight: 5-20 parts of a dispersing agent and 30-80 parts of an alcohol ether solvent. The dispersant may be a polymeric polyester dispersant, such as a combination of one or more of ammonium polyacrylate, polyvinylpyrrolidone, olefin copolymer, polyethylene oxide, and aryl ether. The alcohol ether solvent can be an oxygen-containing solvent, such as one or a combination of ethylene glycol, propylene glycol, ethylene glycol butyl ether and diethylene glycol butyl ether, and the alcohol ether solvent can better disperse and mix various components in the ceramic ink because the alcohol ether solvent has an ether bond and a hydroxyl group, and the ether bond has lipophilicity and can dissolve a hydrophobic compound, and the hydroxyl group has hydrophilicity and can dissolve a water-soluble compound.
In one embodiment, the high-gloss ceramic ink has a printing gray level of 20 to 80%. When an ink-jet printer is adopted to print the texture layer, the ink jet amount of ink of the texture layer can be adjusted by adjusting the printing gray level, the brightness of the texture layer can be influenced by the ink jet amount, when the printing gray level is higher, the higher the glossiness of the formed texture layer is, the larger the contrast with the overglaze layer is, and the better the three-dimensional effect is; when the printing gray scale is lower, the glossiness of the formed texture layer is lower, the contrast with the glossiness of the pattern layer is small, and the three-dimensional effect is not obvious. When the printing gray scale is adjusted to be 20-80%, the brightness and the glossiness contrast are good, and a good three-dimensional effect can be formed.
In one embodiment, the overglaze layer is prepared from a dry granular glaze comprising, in parts by weight: 100-300 parts of dry particle suspending agent, 20-80 parts of fine dry particles and 10-30 parts of low-temperature glaze slip. The dry particle suspending agent is used for dispersing fine dry particles in the glaze slurry well, so that deposition is avoided, meanwhile, the dry particle glaze slurry is not repelled by ink of a texture layer, a sunken structure is avoided, and the smoothness of a brick surface is ensured; the fine dry particles are fine medium-temperature dry particles and can react with high-gloss ceramic ink to form a glass phase with higher brightness, so that the glossiness difference is generated between the texture layer and the surface glaze layer, and a better three-dimensional effect is formed; the low-temperature glaze slip has a lower melting temperature, can reduce the firing temperature of dry granular glaze, can ensure that a surface glaze layer has fine texture and high flatness, and improves the antifouling effect of the ceramic tile.
In one embodiment, the dry particle suspending agent comprises, in parts by weight: 10-30 parts of methyl glycol, 10-30 parts of sodium carboxymethylcellulose, 1-3 parts of sodium metaphosphate and 10-50 parts of water. The dry particle suspending agent combines an inorganic dispersing agent and an organic dispersing agent, has better dispersibility, suspensibility and fluidity, can ensure that dry particles are better dispersed in a system, avoids the deposition of the dry particles and improves the product quality. Meanwhile, the added methyl glycol and sodium carboxymethyl cellulose can ensure that the dry grain glaze slip has good compatibility with the high-gloss ceramic ink, avoid the high-gloss ceramic ink from repelling the dry grain glaze slip to form a recess, and ensure that a surface glaze layer keeps flat to obtain the ceramic tile with a flat tile surface.
In one embodiment, the chemical composition of the fine dry particles comprises, in mass percent: 49-60% of silicon dioxide, 16-19% of aluminum oxide, 3-5% of calcium oxide, 0.01-0.05% of magnesium oxide, 2-3% of sodium oxide, 3-4% of potassium oxide, 3.5-4.52% of strontium oxide, 9-12% of barium oxide, 3-4% of zinc oxide, and the balance of trace impurities and ignition loss less than or equal to 0.64%. The fine dry particles are medium-temperature dry particles and have a soft matte effect, but the fine dry particles can react with high-gloss ceramic ink to form a transparent glass phase, so that the texture layer has high gloss, and further gloss contrast is formed between the texture layer and other parts of the overglaze layer, and a three-dimensional visual effect is generated. The calcium oxide, the magnesium oxide, the strontium oxide, the barium oxide and the zinc oxide can improve the viscosity of the melt at low temperature, and can reduce the high-temperature viscosity of the melt at high temperature, so that the discharge of gas in a dry grain glaze layer is facilitated; meanwhile, the calcium oxide, the magnesium oxide, the strontium oxide, the barium oxide and the zinc oxide can also act on high-gloss ceramic ink, so that the firing temperature of the high-gloss ceramic ink is reduced, the formation of a glass phase is promoted, and the glossiness of a texture layer is further improved. However, as the contents of calcium oxide, magnesium oxide, strontium oxide, barium oxide and zinc oxide increase, the precipitation of microcrystals may be caused, and the contents of calcium oxide, magnesium oxide, strontium oxide, barium oxide and zinc oxide may not be too high since the formation of microcrystals is not favorable for the improvement of the gloss of the texture layer. On the other hand, by adopting the fine dry particles with the component proportion, the sintering temperature can be reduced, the precipitation of microcrystals can be avoided, and the glossiness of the texture layer is improved.
In one embodiment, the fine dry particles are prepared by melting at high temperature and then water quenching. The preparation method specifically comprises the steps of putting raw material components of fine dry particles into a high-temperature smelting furnace at 1500-1550 ℃, carrying out high-temperature melting to form glass liquid, then carrying out water quenching and cooling to form fusion cakes, and grinding the fusion cakes into fine powder to obtain the fine dry particles.
In one embodiment, the fine dry particles have a particle size of 250 to 300 mesh. The texture of the overglaze layer is influenced by the particle size of the fine dry particles, and the smaller the particle size of the fine dry particles is, the finer the texture of the overglaze layer is, but the cost is higher; the larger the particle size of the fine dry particles, the rougher the surface of the overglaze layer and affects the glossiness. When the particle size of the fine dry particles is 250-300 meshes, a glaze surface with fine and smooth texture and matte and soft glossiness can be obtained.
In one embodiment, the chemical composition of the low-temperature glaze slip in the dry granular glaze comprises, by mass percent: 45-55% of silicon dioxide, 17-21% of aluminum oxide, 0.7-1.0% of potassium oxide, 2-3% of sodium oxide, 11.5-14.0% of calcium oxide, 2-2.5% of magnesium oxide, 4-5.5% of zinc oxide, 4-5% of barium oxide and less than or equal to 4% of ignition loss. The low-temperature glaze slip has a lower melting temperature, so that the low-temperature glaze slip can be better leveled during firing, gaps formed by piling fine dry particles are filled, the compactness and the fineness of the overglaze are improved, the glaze is fine and smooth, and the antifouling effect is good.
In one embodiment, the ceramic tile has a chemical composition comprising, in mass percent: 56-63% of silicon dioxide, 25-29% of aluminum oxide, 0.4-0.8% of magnesium oxide, 0.1-0.5% of calcium oxide, 3.5-4.0% of sodium oxide, 0.90-1.3% of potassium oxide, 0.1-0.3% of zinc oxide, 0.1-0.5% of barium oxide, 0.1-0.3% of hafnium oxide, 5.0-6.0% of zirconium dioxide and less than or equal to 2.0% of ignition loss. The high-temperature matte glaze contains zirconium dioxide, has good emulsion, can improve whiteness, covers the base color of the blank body, and ensures that the pattern of the pattern layer is not influenced by the color of the blank body; the high-temperature matte glaze material has higher melting temperature, can prevent the ground glaze layer and the surface glaze layer from being melted into a whole, makes the pattern layer clearer and improves the decorative effect.
The ceramic tile is provided with the body layer, the ground glaze layer, the pattern layer, the texture layer and the surface glaze layer, and the texture layer adopts high-gloss ceramic ink with lower melting temperature and can react with fine dry particles and low-temperature glaze slip added in the surface glaze layer to form texture with higher glossiness.
The invention also discloses a preparation method of the ceramic tile, wherein the ceramic tile has the three-dimensional effect, and the preparation method comprises the following steps:
forming a ground coat on the surface of the green body layer;
forming a pattern layer on the surface of the ground glaze layer;
forming a texture layer on the surface of the part of the pattern layer;
forming a surface glaze layer on the uncovered surface of the texture layer of the pattern layer and the surface of the texture layer to obtain a green brick;
and sequentially firing and polishing the green bricks to obtain the ceramic tile.
In one embodiment, the tile making method comprises the steps of:
s1, preparing a blank by adopting a conventional technology and drying the blank;
s2, spraying a ground glaze layer glaze slip on the surface of the dried blank, wherein the ground glaze layer glaze slip is the high-temperature matte glaze slip, the specific gravity of the ground glaze layer glaze slip is 1.85-1.95 g/ml, and the glaze spraying amount is 410-530 g/m 2 ;
And S3, synchronously carrying out ink-jet printing on a pattern layer and a texture layer on the surface of the ground glaze layer through an ink-jet printer, wherein the pattern layer is obtained by adopting conventional ceramic color ink printing, and the texture layer is obtained by adopting high-gloss ceramic ink printing. Wherein, the technological parameters of the pattern layer ink-jet printing are as follows: a resolution of 400DPI, an ink drop size of 30-180 pl, and an ink output of 0-100 g/m 2 (40 m/min); the channel design drawing printing gray level of the texture layer is 20-80%. By synchronously printing the pattern layer and the texture layer, the printing machine has the characteristics of high printing efficiency, accurate alignment and good product quality;
s4, spraying surface glaze layer glaze slip on the surfaces of the pattern layer and the texture layer, wherein the surface glaze layer glaze slip is dry grain glaze slip, and the glazing amount of the dry grain glaze slip is 260-380 g/m 2 ;
S5, firing the green brick obtained in the step S4 at 1190-1220 ℃ for 50-70 min to obtain a semi-finished ceramic tile product;
and S6, carrying out brushing and polishing treatment on the semi-finished ceramic tile product, wherein 3-6 groups of silicon carbide fiber grinding blocks and 3-6 groups of silicon carbide grinding brushes are adopted during brushing and polishing to obtain a finished ceramic tile product.
In one embodiment, in step S6, after the tile is brushed, the average gloss of the tile surface is 13 to 28 ° (the average gloss is measured at 10 points randomly on the tile surface, and then the average value is calculated), so that the overall gloss of the tile surface is in a comfortable state, and the difference between the gloss of the overglaze layer and the gloss of the texture layer is large, and the stereoscopic effect is prominent.
Through the ceramic tile preparation method, the ceramic tile with the three-dimensional effect can be prepared, the texture layer can react with the surface glaze layer through firing to form grains with high glossiness, and the part of the surface glaze layer which does not react with the texture layer has smaller glossiness than the texture layer, so that glossiness contrast is formed, the bright texture layer is obviously shown on the surface glaze layer, the three-dimensional effect is visually formed, the three-dimensional effect is realized on the surface of the ceramic tile on the premise of ensuring the smoothness of the surface of the ceramic tile, and the decorative effect of the ceramic tile is greatly improved.
To further illustrate the present invention, a tile having a gloss contrast and a method of making the same are provided in the following examples.
Example 1
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence.
The ground coat layer is prepared from a high-temperature matte glaze material, and comprises the following chemical components in percentage by mass: 59% of silicon dioxide, 27% of aluminum oxide, 0.6% of magnesium oxide, 0.3% of calcium oxide, 3.8% of sodium oxide, 1.1% of potassium oxide, 0.2% of zinc oxide, 0.3% of barium oxide, 0.2% of hafnium oxide, 5.5% of zirconium dioxide and 2.0% of ignition loss.
The pattern layer is prepared by conventional ceramic color ink through ink-jet printing.
The texture layer is prepared by printing high-gloss ceramic ink on the pattern layer through an ink-jet printer. The high-gloss ceramic ink comprises the following raw materials in parts by weight: 30 parts of silicon dioxide, 10 parts of aluminum oxide, 5 parts of zinc oxide, 10 parts of calcium oxide, 20 parts of boron trioxide, 10 parts of bismuth trioxide, 15 parts of a dispersing agent and 60 parts of an alcohol ether solvent.
The overglaze layer is prepared from dry granular glaze, and the dry granular glaze comprises the following components in parts by weight: 200 parts of dry particle suspending agent, 50 parts of fine dry particles and 20 parts of low-temperature glaze slip.
Wherein the dry particle suspending agent comprises the following components in parts by weight: 20 parts of methyl glycol, 20 parts of sodium carboxymethyl cellulose, 2 parts of sodium metaphosphate and 30 parts of water.
Wherein the chemical components of the fine dry particles comprise the following components in percentage by mass: 52.89% of silicon dioxide, 18.32% of aluminum oxide, 3.23% of calcium oxide, 0.02% of magnesium oxide, 2.45% of sodium oxide, 3.96% of potassium oxide, 4.52% of strontium oxide, 10.16% of barium oxide, 3.81% of zinc oxide and 0.64% of causticity reduction; and the particle diameter of the fine dry particles is 250 to 300 meshes.
The low-temperature glaze slip comprises the following chemical components in percentage by mass: 49.19 percent of silicon dioxide, 19.13 percent of aluminum oxide, 0.85 percent of potassium oxide, 2.57 percent of sodium oxide, 13 percent of calcium oxide, 2.24 percent of magnesium oxide, 4.85 percent of zinc oxide, 4.4 percent of barium oxide and 3.77 percent of ignition loss.
The ceramic tile is prepared by the following steps:
s1, preparing and drying a blank;
s2, spraying a ground coat glaze slip on the surface of the dried blank, wherein the ground coat glaze slip is prepared from a high-temperature matte glaze, the specific gravity of the ground coat glaze slip is 1.9 g/ml, and the glaze spraying amount is 480 g/m 2 ;
S3, synchronously carrying out ink jet printing on a pattern layer and a texture layer on the surface of the ground coat layer through an ink jet printer, wherein the pattern layer is obtained by printing with conventional ceramic color ink, the texture layer is obtained by printing with high-gloss ceramic ink, and the printing gray level of the texture layer is 60%;
s4, spraying surface glaze layer glaze slip on the surfaces of the pattern layer and the texture layer, wherein the surface glaze layer glaze slip is dry particle glaze slip, and the glazing amount of the surface glaze layer glaze slip is 340 g/m 2 ;
S5, firing the green brick obtained in the step S4 at 1200 ℃ for 60 min to obtain a semi-finished ceramic tile product;
and S6, brushing and polishing the semi-finished product of the ceramic tile, wherein after brushing and polishing, the average glossiness of the surface of the ceramic tile is 22 degrees, the glossiness of the corresponding position of the texture layer is 55 degrees, and the glossiness of the position without the texture layer is 10 degrees.
Example 2
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence.
The ground coat layer is prepared from a high-temperature matte glaze material, and comprises the following chemical components in percentage by mass: 56% of silicon dioxide, 29% of aluminum oxide, 0.8% of magnesium oxide, 0.5% of calcium oxide, 4.0% of sodium oxide, 1.3% of potassium oxide, 0.3% of zinc oxide, 0.5% of barium oxide, 0.3% of hafnium oxide, 6.0% of zirconium dioxide and 1.3% of causticity.
The pattern layer is prepared by conventional ceramic color ink through ink-jet printing.
The texture layer is prepared by printing high-gloss ceramic ink on the pattern layer through an ink-jet printer. The high-gloss ceramic ink comprises the following raw materials in parts by weight: 20 parts of silicon dioxide, 15 parts of aluminum oxide, 3 parts of zinc oxide, 15 parts of calcium oxide, 10 parts of diboron trioxide, 15 parts of bismuth trioxide, 5 parts of a dispersing agent and 30 parts of an alcohol ether solvent.
The overglaze layer is prepared from dry granular glaze, and the dry granular glaze comprises the following components in parts by weight: 100 parts of dry particle suspending agent, 20 parts of fine dry particles and 30 parts of low-temperature glaze slip.
Wherein the dry particle suspending agent comprises the following components in parts by weight: 10 parts of methyl glycol, 30 parts of sodium carboxymethyl cellulose, 3 parts of sodium metaphosphate and 50 parts of water.
Wherein the chemical components of the fine dry particles comprise the following components in percentage by mass: 49% of silicon dioxide, 18% of aluminum oxide, 5% of calcium oxide, 0.05% of magnesium oxide, 3% of sodium oxide, 4% of potassium oxide, 4.5% of strontium oxide, 12% of barium oxide, 4% of zinc oxide and 0.45% of ignition loss; and the particle diameter of the fine dry particles is 250 to 300 meshes.
The low-temperature glaze slip comprises the following chemical components in percentage by mass: 45% of silicon dioxide, 21% of aluminum oxide, 1.0% of potassium oxide, 3% of sodium oxide, 14.0% of calcium oxide, 2.5% of magnesium oxide, 5.5% of zinc oxide, 5% of barium oxide and 3% of scorch.
The preparation procedure of the tile in example 2 is substantially the same as that of example 1, please refer to example 1, except that: (1) in step S2, the specific gravity of the ground glaze layer glaze slip is 1.85 g/ml, and the glaze spraying amount is 530 g/m 2 (ii) a (2) In step S4, the glazing amount of the overglaze layer glaze slip is 260 g/m 2 (ii) a (3) In step S5, the firing temperature is 1190 ℃, and the firing time is 70 min; (4) in step S6, after brushing and polishing, the average glossiness of the tile surface is 13 °, wherein the glossiness of the corresponding position of the texture layer is 35 °, and the glossiness of the position without the texture layer is 4 °.
Example 3
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence.
The ground coat layer is prepared from a high-temperature matte glaze material, and comprises the following chemical components in percentage by mass: 63% of silicon dioxide, 25% of aluminum oxide, 0.4% of magnesium oxide, 0.1% of calcium oxide, 3.5% of sodium oxide, 0.90% of potassium oxide, 0.1% of zinc oxide, 0.1% of barium oxide, 0.1% of hafnium oxide, 5.0% of zirconium dioxide and 1.8% of causticity.
The pattern layer is prepared by conventional ceramic color ink through ink-jet printing.
The texture layer is prepared by printing high-gloss ceramic ink on the pattern layer through an ink-jet printer. The high-gloss ceramic ink comprises the following raw materials in parts by weight: 50 parts of silicon dioxide, 5 parts of aluminum oxide, 10 parts of zinc oxide, 5 parts of calcium oxide, 30 parts of boron trioxide, 5 parts of bismuth trioxide, 20 parts of a dispersing agent and 80 parts of an alcohol ether solvent.
The overglaze layer is prepared from dry granular glaze, and the dry granular glaze comprises the following components in parts by weight: 300 parts of dry particle suspending agent, 80 parts of fine dry particles and 25 parts of low-temperature glaze slip.
Wherein the dry particle suspending agent comprises the following components in parts by weight: 30 parts of methyl glycol, 10 parts of sodium carboxymethyl cellulose, 1 part of sodium metaphosphate and 10 parts of water.
Wherein the chemical components of the fine dry particles comprise the following components in percentage by mass: 60% of silicon dioxide, 16% of aluminum oxide, 3% of calcium oxide, 0.01% of magnesium oxide, 2% of sodium oxide, 3% of potassium oxide, 3.5% of strontium oxide, 9% of barium oxide, 3% of zinc oxide and 0.49% of causticity reduction; and the particle diameter of the fine dry particles is 250 to 300 meshes.
The low-temperature glaze slip comprises the following chemical components in percentage by mass: 55% of silicon dioxide, 17% of aluminum oxide, 0.7% of potassium oxide, 2% of sodium oxide, 11.5% of calcium oxide, 2% of magnesium oxide, 4% of zinc oxide, 4% of barium oxide and 3.8% of causticity.
The preparation procedure of the tile in example 3 is basically the same as that of example 1, please refer to example 1, except that: (1) in step S2, the specific gravity of the ground glaze layer glaze slip is 1.95 g/ml, and the glaze spraying amount is 410 g/m 2 (ii) a (2) In step S4, the glazing amount of the overglaze layer glaze slip is 380 g/m 2 (ii) a (3) In step S5, the firing temperature is 1220 ℃, and the firing time is 50 min; (4) in step S6, after brushing and polishing, the average glossiness of the tile surface is 28 °, wherein the glossiness of the corresponding position of the texture layer is 60 °, and the glossiness of the position without the texture layer is 13 °.
Example 4
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence.
The ground coat layer is prepared from a high-temperature matte glaze material, and comprises the following chemical components in percentage by mass: 60% of silicon dioxide, 26% of aluminum oxide, 0.5% of magnesium oxide, 0.4% of calcium oxide, 3.9% of sodium oxide, 1.2% of potassium oxide, 0.2% of zinc oxide, 0.2% of barium oxide, 0.12% of hafnium oxide, 5.8% of zirconium dioxide and 1.68% of ignition loss.
The pattern layer is prepared by conventional ceramic color ink through ink-jet printing.
The texture layer is prepared by printing high-gloss ceramic ink on the pattern layer through an ink-jet printer. The high-gloss ceramic ink comprises the following raw materials in parts by weight: 40 parts of silicon dioxide, 10 parts of aluminum oxide, 7 parts of zinc oxide, 6 parts of calcium oxide, 25 parts of diboron trioxide, 12 parts of bismuth trioxide, 18 parts of a dispersing agent and 70 parts of an alcohol ether solvent.
The overglaze layer is prepared from dry granular glaze, and the dry granular glaze comprises the following components in parts by weight: 150 parts of dry particle suspending agent, 40 parts of fine dry particles and 10 parts of low-temperature glaze slip.
Wherein the dry particle suspending agent comprises the following components in parts by weight: 15 parts of methyl glycol, 25 parts of sodium carboxymethyl cellulose, 2 parts of sodium metaphosphate and 40 parts of water.
Wherein the chemical components of the fine dry particles comprise the following components in percentage by mass: 52% of silicon dioxide, 19% of aluminum oxide, 4% of calcium oxide, 0.04% of magnesium oxide, 2.7% of sodium oxide, 3.3% of potassium oxide, 4.2% of strontium oxide, 11% of barium oxide, 3.2% of zinc oxide and 0.56% of ignition loss; and the particle diameter of the fine dry particles is 250 to 300 meshes.
The low-temperature glaze slip comprises the following chemical components in percentage by mass: 50% of silicon dioxide, 20% of aluminum oxide, 0.9% of potassium oxide, 2.2% of sodium oxide, 13% of calcium oxide, 2.2% of magnesium oxide, 4.8% of zinc oxide, 4.8% of barium oxide and 2.1% of ignition loss.
The preparation procedure of the tile in example 4 is substantially the same as that of example 1, with reference to example 1, except that: (1) in step S2, the specific gravity of the ground glaze layer glaze slip is 1.88 g/ml, and the glaze spraying amount is 500 g/m 2 (ii) a (2) In step S4, the glazing amount of the overglaze layer glaze slip is 300 g/m 2 (ii) a (3) In step S5, the firing temperature is 1210 ℃ and the firing time is 55 min; (4) in step S6, after brushing and polishing, the average glossiness of the tile surface is 20 °, wherein the glossiness of the corresponding position of the texture layer is 48 °, and the glossiness of the position without the texture layer is 7 °.
By observing the surfaces of the tiles of examples 1 to 4, it was found that the apparent stereoscopic effect shown in FIG. 1 or FIG. 2 was obtained, the gloss of the portion where the texture layer was printed was high, while the gloss of the portion where the texture layer was not printed was relatively low, and the gloss of the both was in high contrast, which made the portion where the texture layer was provided very prominent, giving the viewer a stereoscopic visual sensation. When the texture layer is special texture, such as flower texture, or outline texture of the pattern layer, the outline texture of the flower texture and the pattern is more prominent than other parts of the pattern layer, so that visual perception with vivid three-dimensional effect is given. Meanwhile, the surface of the ceramic tile is touched, and the surface is found to be smooth and exquisite, and the hand feeling is smooth, so that the ceramic tile is easy to clean and is not easy to store dirt and soil.
Comparative example 1
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer and a surface glaze layer from bottom to top, wherein the body layer, the ground glaze layer, the pattern layer and the surface glaze layer have the same composition as that of example 1, and the preparation method is the same as that of example 1 except that a texture layer is not printed by ink jet. The entity picture of the ceramic tile is shown in figure 3.
Comparative example 2
A ceramic tile comprises a body layer, a ground coat layer, a pattern layer and a texture layer from bottom to top in sequence, wherein the body layer, the ground coat layer, the pattern layer and the texture layer are the same in component composition as in example 1, the preparation method is the same as in example 1, and the difference is that no surface coat layer is arranged. The physical diagram of the tile is shown in figure 4.
Comparative example 3
A ceramic tile comprises a body layer, a ground coat layer and a texture layer from bottom to top in sequence, wherein the body layer, the ground coat layer and the texture layer are the same in component composition as in example 1, the preparation method is the same as in example 1, and the difference is that no pattern layer or surface glaze layer is arranged. The physical diagram of the tile is shown in figure 5.
Comparative example 4
A ceramic tile comprising a body layer, a ground coat layer and a cover coat layer in this order from bottom to top, wherein the composition of the body layer, ground coat layer and cover coat layer is the same as in example 1, and the production method is the same as in example 1 except that no pattern layer or texture layer is provided. The physical diagram of the tile is shown in figure 6.
Comparative example 5
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence. The green body layer, the ground glaze layer, the pattern layer and the overglaze layer are all the same as those in the embodiment 1, the preparation method of the ceramic tile is also the same as that in the embodiment 1, the difference is that the texture layer is prepared by adopting different inks, and the inks for preparing the texture layer are as follows according to parts by weight: 30 parts of silicon dioxide, 10 parts of aluminum oxide, 5 parts of zinc oxide, 10 parts of calcium oxide, 10 parts of bismuth trioxide, 15 parts of a dispersing agent and 60 parts of an alcohol ether solvent.
Comparative example 6
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence. The green body layer, the ground glaze layer, the pattern layer and the overglaze layer are all the same as those in the embodiment 1, the preparation method of the ceramic tile is also the same as that in the embodiment 1, the difference is that the texture layer is prepared by different inks, and the inks for preparing the texture layer are as follows according to parts by weight: 30 parts of silicon dioxide, 10 parts of aluminum oxide, 1 part of zinc oxide, 1 part of calcium oxide, 20 parts of boron trioxide, 1 part of bismuth trioxide, 15 parts of a dispersing agent and 60 parts of an alcohol ether solvent.
Comparative example 7
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence. The green body layer, the ground glaze layer, the pattern layer and the overglaze layer are all the same as those in the embodiment 1, the preparation method of the ceramic tile is also the same as that in the embodiment 1, the difference is that the texture layer is prepared by adopting different inks, and the inks for preparing the texture layer are as follows according to parts by weight: 30 parts of silicon dioxide, 10 parts of aluminum oxide, 20 parts of zinc oxide, 25 parts of calcium oxide, 20 parts of diboron trioxide, 25 parts of bismuth trioxide, 15 parts of a dispersing agent and 60 parts of an alcohol ether solvent.
Comparative example 8
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence. The body layer, the ground glaze layer, the pattern layer and the texture layer are the same as those in the embodiment 1, the preparation method of the ceramic tile is the same as that in the embodiment 1, and the difference is that the dry grain glaze adopted for preparing the overglaze layer is different, and the dry grain glaze comprises the following components in parts by weight: 200 parts of dry particle suspending agent, 50 parts of fine dry particles and 20 parts of low-temperature glaze slip, wherein the dry particle suspending agent and the low-temperature glaze slip are the same as those in the embodiment 1, and the chemical components of the fine dry particles comprise the following components in percentage by mass: 61.5 percent of silicon dioxide, 22 percent of aluminum oxide, 1.2 percent of calcium oxide, 3.2 percent of sodium oxide, 4.5 percent of potassium oxide, 0.8 percent of strontium oxide, 5.0 percent of barium oxide, 0.5 percent of zinc oxide and 1.3 percent of ignition loss.
Comparative example 9
A ceramic tile comprises a body layer, a ground glaze layer, a pattern layer, a texture layer and a surface glaze layer from bottom to top in sequence. The body layer, the ground glaze layer, the pattern layer and the texture layer are the same as those in the embodiment 1, the preparation method of the ceramic tile is the same as that in the embodiment 1, and the difference is that the dry grain glaze adopted for preparing the overglaze layer is different, and the dry grain glaze comprises the following components in parts by weight: 200 parts of dry particle suspending agent, 50 parts of fine dry particles and 20 parts of low-temperature glaze slip, wherein the dry particle suspending agent and the low-temperature glaze slip are the same as those in the embodiment 1, and the chemical components of the fine dry particles comprise the following components in percentage by mass: 51% of silicon dioxide, 13.8% of aluminum oxide, 6% of calcium oxide, 0.1% of magnesium oxide, 1.5% of sodium oxide, 2.3% of potassium oxide, 5.5% of strontium oxide, 14% of barium oxide, 5.5% of zinc oxide and 0.3% of causticity reduction.
The average gloss and stain resistance of examples 1 to 4 and comparative examples 1 to 9 were measured and the apparent effect was observed, and the results are shown in Table 1.
TABLE 1 ceramic tile Performance test results and apparent Effect
As can be seen from Table 1, the tiles described in examples 1-4 have a gloss of 13-28 °, a soft-light effect, and a relatively comfortable gloss, and also have a stereoscopic visual perception due to the higher gloss at the corresponding positions of the texture layers in examples 1-4; the soil resistance of the tiles described in examples 1-4 was rated 5, mainly because the surface was flat and therefore had a good soil resistance effect.
In addition, by comparing the physical diagrams of the tiles of comparative examples 1 to 4 with the detection results in table 1, it is found that no three-dimensional effect or no obvious three-dimensional effect is obtained in comparative examples 1 to 4 (although there is texture in fig. 5, the three-dimensional effect is not obvious because the gloss difference is not large), and thus it can be seen that the three-dimensional effect is presented as a result of the combined action of the texture layer and the overglaze layer, when only the texture layer is provided and the overglaze layer is not provided, the texture layer cannot obtain gloss with higher brightness, and further cannot form gloss contrast with other positions of the tile surface, and no three-dimensional visual effect can be generated; when only the overglaze layer is provided and no texture layer is provided, the glossiness of the surface of the ceramic tile is consistent, and the three-dimensional effect cannot be obtained. Only when the texture layer and the surface glaze layer are simultaneously arranged, the texture layer can have higher gloss after the high-gloss ceramic ink in the texture layer reacts with the dry grain glaze in the surface glaze layer through the combined action of the texture layer and the surface glaze layer, and meanwhile, the texture layer is enabled to be prominently displayed on the surface of the ceramic tile by virtue of the low-gloss contrast of the part of the surface glaze layer which does not react with the texture layer, so that a three-dimensional visual effect is formed.
In comparative example 5, since the texture layer formulation does not contain boron oxide, the gloss is close to that of the overglaze layer, resulting in insignificant stereoscopic effect. Comparative examples 6 and 7 also failed to obtain tiles with large gloss differences and good cubic effect, mainly due to the fact that the ink of the texture layer obtained less glassy phase during firing. Comparative example 8 can provide a gloss contrast, but has a rough surface and poor stain resistance. Comparative example 9 the overglaze layer formed excessively high glossiness due to the excessive contents of calcium oxide, magnesium oxide, strontium oxide, barium oxide, and zinc oxide added, and the difference in glossiness from the texture layer was small, and thus the stereoscopic effect could not be formed.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.