Disclosure of Invention
The invention aims to provide a dry granular glaze, which is characterized in that the suspension performance, the glaze surface flatness and the glaze spraying state of dry granular glaze slurry can be effectively improved through the limitation of the grain size grading percentage content of dry granules and the formula limitation of a suspending agent, so that the dry granular glaze is not easy to precipitate during coating, and the polishing of the dry granular glaze is more uniform in the later polishing process.
The second purpose of the invention is to provide a ceramic tile with a glaze surface having a diamond light effect, wherein the ceramic tile has special glittering luster, such as dazzling, glittering and translucent, sub-opalescence and glittering.
The third purpose of the invention is to provide a preparation method of ceramic tiles with glaze surfaces having diamond light effects.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the dry granular glaze provided by the invention is prepared by uniformly mixing dry granules and a suspending agent; the grain size grading percentage of the dry grains is as follows: 10-35% of 120-180 mesh particles and 65-90% of 180-250 mesh particles; the suspending agent comprises the following components in parts by mass: 10-13 parts of acrylate polymer, 6-10 parts of propylene glycol block copolymer, 1-3 parts of surfactant, 0-3 parts of thickening agent and 70-81 parts of ceramic dispersant.
Preferably, the suspending agent comprises the following components in parts by weight: 12 parts of acrylate polymer, 8 parts of propylene glycol block copolymer, 2 parts of surfactant, 1 part of thickening agent and 75 parts of ceramic dispersing agent.
Preferably, the particle size distribution percentage of the dry particles is as follows: 30% of 120-180 mesh particles and 70% of 180-250 mesh particles.
Preferably, the mass ratio of the dry particles to the suspending agent in the dry particle glaze is 20-30: 70-80.
Preferably, the chemical composition of the dry granules comprises, in mass percent: SiO 2 2 65%~70%、Al 2 O 3 13%~16%、MgO 0.05%~2%、CaO 6%~7%、Na 2 O 0.8~2.0%、K 2 O 3.5%~4.5%、ZnO 2.5%~4.5%、BaO 0.02%~1%、Fe 2 O 3 0.05%~0.1%、SrO0.8%~1.5%。
In addition, the invention provides a ceramic tile with a glazed surface having a diamond light effect, which comprises a stone-like blank body with a concave-convex effect, and a ground glaze layer, a surface glaze layer, a printing layer and a dry grain glaze layer which are sequentially arranged on the surface of the stone-like blank body from inside to outside; the stone-like blank with the concave-convex effect is prepared by carving a green body; the dry particle glaze layer is prepared from the dry particle glaze.
The invention also provides a preparation method of the ceramic tile with the glaze surface having the diamond light effect, and the preparation method comprises the following steps:
(a) carrying out green body carving on the biscuit through a concave-convex mould, and then biscuit firing to obtain a stone-like blank with a concave-convex effect;
(b) sequentially spraying a ground coat and a cover coat on the surface of the stone-like blank with the concave-convex effect in the step (a), and then performing ink-jet printing to obtain a ground coat layer, a cover coat layer and a printing layer in sequence;
(c) and (c) spraying the dry grain glaze on the printing layer in the step (b), and then sintering and semi-polishing to obtain the ceramic tile with the glaze surface having the diamond light effect.
Preferably, in the step (a), the bisque firing temperature is 1170-1175 ℃.
Preferably, in the step (c), the glossiness of the ceramic tile after semi-polishing is 35-40 degrees.
Preferably, in the step (c), the glazing amount of the dry particle glaze is 500-700 g/m 2 And the sintering temperature is 1110-1130 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the dry granular glaze provided by the invention is prepared by uniformly mixing dry granules with a suspending agent; by limiting the grain size grading percentage of the dry grains and the formula of the dry suspending agent and matching the dry grain glaze suspending agent, the suspension performance, the glaze surface flatness and the glaze pouring state of the dry grain glaze slurry can be effectively improved, the dry grain glaze is not easy to precipitate during coating, and the polishing of the dry grain glaze is more uniform in the post-polishing process.
The invention provides a ceramic tile with a glazed surface having a diamond light effect, which comprises a stone-like blank body with a concave-convex effect, and a ground glaze layer, a surface glaze layer, a printing layer and a dry grain glaze layer which are sequentially arranged on the surface of the blank body from inside to outside; the dry particle glaze layer is mainly prepared from the dry particle glaze, and the stone-like blank with the concave-convex effect is obtained by carrying out green body carving on a biscuit through a concave-convex mould. According to the invention, the rough blank is carved by the concave-convex mould, so that the prepared stone-like blank with concave-convex effect is matched with the dry grain glaze, and the glaze of the ceramic tile after semi-polishing has obvious diamond light effect, thereby breaking the original inherent gloss mode of non-sub-bright or non-bright-sub-bright. Innovations are made on the research and development conception, and a brand new special fluorescent gloss product with the characteristics of dazzling and dazzling, glittering and translucent, sub-matte appearance and glittering and non-glittering appearance is created.
The concave-convex mould is manufactured by the steps of obtaining information from natural surface effects (pits, edges, grooves and the like) formed by long-term rain, sunshine and year erosion of natural stones through high-definition scanning equipment, using a plane green body as a mould engraving carrier, and completing the engraving processing of the mould through a data feed mode by using a computer to obtain material information. The whole process basically has no data information loss, and the manufactured stone-like blank with the concave-convex effect has the technical advantages of high simulation degree and perfect reproduction of original details of materials.
The preparation method of the ceramic tile with the glazed surface having the diamond light effect comprises the steps of firstly preparing a stone-like blank body with a concave-convex effect, then sequentially spraying a ground glaze and a surface glaze, ink-jet printing and drying, spraying dry particle glaze on the surface of the stone-like blank body with the concave-convex effect, and sintering to obtain the ceramic tile with the glazed surface having the diamond light effect. The invention utilizes the concave-convex mould to carve the green body on the biscuit, can directly express the concave-convex carving effect on the biscuit, and combines the semi-polishing process after the procedures of glazing, printing, drying grain glaze and sintering are finished to prepare the ceramic tile; the semi-polishing process realizes the matte effect of ceramic tile products, highlights the light effect of dry-particle diamonds, forms light and shade layering, and avoids the phenomenon that the polishing depth is too deep like full polishing, and finally influences the antifouling performance of a glaze surface.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to one aspect of the invention, the dry-particle glaze is prepared by uniformly mixing dry particles and a suspending agent; the grain size grading percentage of the dry grains is as follows: 10-35% of 120-180 mesh particles and 65-90% of 180-250 mesh particles; the suspending agent comprises the following components in parts by mass: 10-13 parts of acrylate polymer, 6-10 parts of propylene glycol block copolymer, 1-3 parts of surfactant, 0-3 parts of thickening agent and 70-81 parts of ceramic dispersant.
More specifically, the dry particle glaze provided by the invention can effectively improve the suspension performance, glaze surface flatness and glaze spraying state of dry particle glaze slurry through the limitation of the particle size grading percentage of the dry particles and the limitation of the formula of the dry suspending agent through the matching of the dry particle glaze suspending agent, so that the dry particle glaze is not easy to precipitate during coating, and further the polishing of the dry particle glaze is more uniform in the later polishing process.
In a preferred embodiment of the present invention, the suspending agent comprises, in parts by mass: 12 parts of acrylate polymer, 8 parts of propylene glycol block copolymer, 2 parts of surfactant, 1 part of thickening agent and 75 parts of ceramic dispersing agent.
In a preferred embodiment of the present invention, the dry granules have a particle size distribution percentage of: 30% of 120-180 mesh particles and 70% of 180-250 mesh particles.
In a preferred embodiment of the invention, the mass ratio of the dry particles to the suspending agent in the dry particle glaze is 20-30: 70-80. Tests prove that the suspending agent prepared from the raw materials is very effective in eliminating the defects of glaze pouring, recessed glaze and bubbles, and has a good effect.
In a preferred embodiment of the invention, the mass ratio of the dry particles to the suspending agent in the dry particle glaze is 30: 70. The mass ratio of dry particles to suspending agent in the dry particle glaze is 30:70, under the condition of the proportioning, test detection shows that the dry granular glaze has good anti-precipitation effect, and the glaze slip is only slightly layered after being placed for 24 hours without precipitation.
In a preferred embodiment of the present invention, the chemical composition of the dry granules comprises, in mass percent: SiO 2 2 65%~70%、Al 2 O 3 13%~16%、MgO 0.05%~2%、CaO 6%~7%、Na 2 O 0.8~2.0%、K 2 O 3.5%~4.5%、ZnO 2.5%~4.5%、BaO 0.02%~1%、Fe 2 O 3 0.05 to 0.1 percent of SrO0.8 to 1.5 percent of SrOl; the sum of the mass percentages of all chemical components in the dry particles is 100%. The dry particles formed by the specific inorganic chemical components have relatively proper physical properties and high-temperature sintering properties, and dry particle glaze obtained by compounding the dry particles with the suspending agent according to the specific proportion has relatively good brightness and glossiness.
According to another aspect of the invention, a glazed ceramic tile with a diamond light effect is provided, the ceramic tile comprises a stone-like blank body with a concave-convex effect, and a ground glaze layer, a surface glaze layer, a printing layer and a dry grain glaze layer which are sequentially arranged on the surface of the stone-like blank body from inside to outside; wherein the stone-like blank with the concave-convex effect is prepared by carving a green body; the dry particle glaze layer is prepared from the dry particle glaze.
The stone-like blank with the concave-convex effect is prepared by carving a green body on a biscuit through a concave-convex die. According to the invention, the rough blank is carved by the concave-convex mould, the prepared stone-like blank with concave-convex effect is matched with the dry particle glaze, and the glaze of the ceramic tile after semi-polishing has obvious diamond light effect, so that the original inherent gloss mode of non-sub-bright or non-bright-sub-bright is broken. Innovations are made on the research and development conception, and a brand new special fluorescent gloss product with the characteristics of dazzling and dazzling, glittering and translucent, sub-matte appearance and glittering and non-glittering appearance is created.
The concave-convex mould is manufactured by the steps of obtaining information from natural surface effects (pits, edges, grooves and the like) formed by long-term rain, sunshine and year erosion of natural stones through high-definition scanning equipment, using a plane green body as a mould engraving carrier, and completing the engraving processing of the mould through a data feed mode by using a computer to obtain material information. The whole process basically has no data information loss, and the manufactured stone-like blank with the concave-convex effect has the technical advantages of high simulation degree and perfect reproduction of original details of materials.
Meanwhile, the concave-convex mould uses the green body as a carving material, and compared with moulds made of other materials, the concave-convex mould has better economic performance of the biscuit of the glazed tile. In addition, after glaze spraying, if the effect is unsatisfactory, the concave-convex depth, the structure, the details and the like of the surface can be modified at will, and the whole process is simple and convenient to operate, short in consumed time and low in material consumption cost. The surface of the ceramic tile has a bright surface and a matte surface which coexist in a staggered manner by processing fine textures of a blank body mould through a green body and combining half polishing through a concave-convex mould, so that a local dazzling effect is formed;
according to another aspect of the invention, the invention also provides a preparation method of the ceramic tile with the glazed surface having the diamond effect, wherein the preparation method comprises the following steps:
(a) carrying out green body carving on the biscuit through a concave-convex mould, and then biscuit firing to obtain a stone-like blank with a concave-convex effect;
(b) sequentially spraying a ground coat and a cover coat on the surface of the stone-like blank with the concave-convex effect in the step (a), and then performing ink-jet printing to obtain a ground coat layer, a cover coat layer and a printing layer in sequence;
(c) and (c) spraying the dry grain glaze on the printing layer in the step (b), and then sintering and semi-polishing to obtain the ceramic tile with the glaze surface having the diamond light effect.
The preparation method of the ceramic tile with the glazed surface having the diamond light effect comprises the steps of firstly preparing a stone-like blank body with a concave-convex effect, then sequentially spraying a ground glaze and a surface glaze, ink-jet printing and drying, spraying dry particle glaze on the surface of the stone-like blank body with the concave-convex effect, and sintering to obtain the ceramic tile with the glazed surface having the diamond light effect. The invention utilizes the concave-convex mould to carve the green body on the biscuit, can directly express the concave-convex carving effect on the biscuit, and combines the semi-polishing process after the procedures of glazing, printing, drying grain glaze and sintering are finished to prepare the ceramic tile; the semi-polishing process realizes the matte effect of ceramic tile products, highlights the light effect of dry-particle diamonds, forms light and shade layering, and avoids the phenomenon that the polishing depth is too deep like full polishing, and finally influences the antifouling performance of a glaze surface.
It should be noted that the polishing effect of diamond polishing can be realized by adopting the direct glaze spraying method to prepare the diamond polishing slurry. The existing precipitation glaze pouring can cause the phenomena of orange peel pores and the like of the poured ceramic tile, and the diamond light effect cannot be obtained after polishing. The bubble glaze spraying has a plurality of pinholes after sintering, and the serious dirt absorption defect can be caused after polishing.
In a preferred embodiment of the preparation method of the present invention, in the step (c), the glossiness of the ceramic tile after half-polishing is 35 to 40 degrees. The semi-polishing process realizes the matte effect of ceramic tile products, highlights the light effect of dry diamond particles, forms light and shade layering, and avoids the phenomenon that the antifouling performance of a glaze surface is influenced finally due to the fact that the polishing depth is too deep like full polishing.
More specifically, the block distribution and parameters of the half-polished polisher are shown in tables 1-3 below:
table 1 polisher station 1
TABLE 2 Polisher station 2
TABLE 3 Polisher station 3
In a preferred embodiment of the preparation method of the present invention, in the step (a), the bisque firing temperature is 1170-1175 ℃; in the step (c), the glazing amount of the dry granular glaze is 500-700 g/m 2 And the sintering temperature is 1110-1130 ℃.
The technical solution of the present invention will be further described with reference to the following examples.
Example 1
The embodiment of the invention relates to a dry particle glaze, wherein the dry particle chemical composition content of the dry particle glaze is SiO 2 66.6% of Al 2 O 3 16% of MgO, 2% of CaO, 6% of Na 2 O is 0.8%, K 2 3.5% of O, 2.5% of ZnO, 1% of BaO, and Fe 2 O 3 0.1% and SrO 1.5%.
The manufacturing method of the dry granular glaze comprises the following steps:
1. the grain size of the selected dry grains is more than 120 meshes or less than 250 meshes, and the proportion of coarse grains or fine grains is not too high or too concentrated. The dry glaze slip is prepared by matching with a suspending agent.
The grain size grading percentage of the dry grains is as follows: 30% of 120-180 mesh particles and 70% of 180-250 mesh particles.
2. The suspending agent comprises the following components in percentage by weight: the suspending agent comprises the following components in parts by mass: 12 parts of acrylate polymer, 8 parts of propylene glycol block copolymer, 2 parts of surfactant, 1 part of thickening agent and 75 parts of ceramic dispersing agent. The other auxiliary agents comprise water and an anti-settling agent, and the mass ratio of the water to the anti-settling agent is 60: 40.
3. and uniformly mixing the suspending agent and the dry particles to prepare dry particle glaze, wherein the ratio of the dry particles to the suspending agent is 30:70, the gram number of the dried grain glaze is 110 grams per square.
Example 2
The embodiment of the invention relates to a dry particle glaze, wherein the dry particle chemical composition content of the dry particle glaze is SiO 2 65%、Al 2 O 3 16%、MgO 0.05%、CaO 6%、Na 2 O2.0%、K 2 O 4.5%、ZnO3.85、BaO 1%、Fe 2 O 3 0.1%、SrO1.5%。
The manufacturing method of the dry granular glaze comprises the following steps:
1. the dry particle size is more than 120 meshes or less than 250 meshes, and the proportion of coarse particles or fine powder is not too high or too concentrated. The dry glaze slip is prepared by matching with a suspending agent.
The dry particle glaze is prepared by uniformly mixing dry particles and a suspending agent; the grain size grading percentage of the dry grains is as follows: 10% of 120-180 mesh particles and 90% of 180-250 mesh particles.
2. The suspending agent comprises the following components in percentage by weight: the suspending agent comprises the following components in parts by weight: 10 parts of acrylate polymer, 6 parts of propylene glycol block copolymer, 1 part of surfactant, 2 parts of thickening agent and 81 parts of ceramic dispersing agent. The other auxiliary agents comprise water and an anti-precipitation agent, wherein the mass ratio of the water to the anti-precipitation agent is 60: 40.
3. and uniformly mixing the suspending agent and the dry particles to prepare dry particle glaze, wherein the ratio of the dry particles to the suspending agent is 20: 80, the gram number of the dried grain glaze is 130 grams per square.
Example 3
The embodiment of the invention relates to a dry particle glaze, wherein the dry particle chemical composition content of the dry particle glaze is SiO 2 70%、Al 2 O 3 13%、MgO 0.05%、CaO 7%、Na 2 O 2.0%、K 2 O 3.83%、ZnO 2.5%、BaO 0.02%、Fe 2 O 3 0.1%、SrO1.5%。
The manufacturing method of the dry granular glaze comprises the following steps:
1. the grain size of the selected dry grains is more than 120 meshes or less than 250 meshes, and the proportion of coarse grains or fine grains is not too high or too concentrated. The dry glaze slip is prepared by matching with a suspending agent.
The dry particle glaze is prepared by uniformly mixing dry particles and a suspending agent; the grain size grading percentage of the dry grains is as follows: 35% of 120-180 mesh particles and 65% of 180-250 mesh particles.
2. The suspending agent comprises the following components in percentage by weight: the suspending agent comprises the following components in parts by mass: 13 parts of acrylate polymer, 10 parts of propylene glycol block copolymer, 3 parts of surfactant, 1 part of thickening agent and 70 parts of ceramic dispersing agent. The other auxiliary agents comprise water and an anti-settling agent, and the mass ratio of the water to the anti-settling agent is 60: 40.
3. and uniformly mixing the suspending agent and the dry granules to prepare dry granule glaze, wherein the ratio of the dry granules to the suspending agent is 25:75, and the gram of the dried granule glaze is 120 grams per square.
Example 4
The embodiment is the ceramic tile with the glazed surface having the diamond light effect, which comprises a blank body, and a bottom glaze layer, a surface glaze layer, a printing layer and a dry grain glaze layer which are sequentially arranged on the surface of the blank body from inside to outside;
the preparation method of the ceramic tile with the glaze surface having the diamond light effect comprises the following steps:
(a) weighing according to the formula of conventional ceramic raw materials, carving green bodies on biscuit through a concave-convex die, and biscuit firing at 1175 ℃ to obtain the stone-like body with concave-convex effect;
(b) sequentially spraying a ground coat and a cover coat on the surface of the stone-like blank with the concave-convex effect in the step (a), and then performing ink-jet printing to obtain a ground coat layer, a cover coat layer and a printing layer in sequence; the overglaze adopts G200F, the raw material components comprise 75 parts of XW-1816 frit, 10 parts of zirconium silicate, 6 parts of calcined kaolin, 6 parts of air-knife soil, 1 part of 200-mesh alumina, 2 parts of quartz powder, 0.12 part of methyl cellulose, 0.35 part of sodium tripolyphosphate and 39 parts of water, and the spraying is 500G per square;
(c) spraying dry grain glaze on the printing layer in the step (b), wherein the dry grain glaze application amount is 700g/m 2 Then sintering at 1130 ℃ and semi-polishing to obtain the ceramic tile with the glaze surface having the diamond light effect; the preparation of the dry granular glaze is the same as that of the example 1;
the manufacturing method of the concave-convex mould in the step (a) comprises the steps of obtaining information through high-definition scanning equipment according to natural surface effects (pits, edges, grooves and the like) formed by long-term rain exposure and weather erosion of natural stones, taking a plane green body as a mould engraving carrier, and finishing engraving processing of the mould through a data feed mode by using a computer to obtain material information;
the distribution and parameters of the blocks of the semi-polishing polisher in step (c) are shown in tables 1-3 in the specification of the present application.
Example 5
This example is a ceramic tile with a glazed surface having a diamond effect, which is provided by the present invention, the preparation method is the same as example 4, the preparation of the glaze except dry particles is the same as example 2, the biscuiting temperature is 1170 ℃, the sintering temperature is 1110 ℃, and the dry particle glazing amount is 500g/m 2 And (3) outside.
Comparative example 1
This comparative example is a dry glaze, which is the same as example 1 except that the percentage of the dry grain size distribution is different from that of example 1.
The dry particle size grading percentage of the comparative example is as follows: 40% of 120-180 mesh particles and 60% of 180-250 mesh particles.
Comparative example 2
This comparative example is a dry glaze, which is the same as example 1 except that the dry glaze has a different particle size distribution percentage from that of example 1.
The grain size grading percentage of the dry grains of the comparative example is as follows: 5% of 120-180 mesh particles and 95% of 180-250 mesh particles.
Comparative example 3
This comparative example is a dry glaze, which is the same as example 1 except that the dry glaze has a different particle size distribution percentage from that of example 1.
The dry particle size grading percentage of the comparative example is as follows: 40% of 120-180 mesh particles, 20% of 180-250 mesh particles and 40% of more than 250 mesh particles.
Comparative example 4
This comparative example is a dry particulate glaze, the same as example 1 except that the formulation of the suspending agent is different from that of example 1.
The suspending agent comprises the following components in percentage by weight: the suspending agent comprises the following components in parts by mass: 7 parts of acrylate polymer, 5 parts of propylene glycol block copolymer, 2 parts of surfactant, 1 part of thickener and 75 parts of ceramic dispersant.
Comparative example 5
This comparative example is a dry particulate glaze, the same as example 1 except that the formulation of the suspending agent is different from that of example 1.
The suspending agent comprises the following components in percentage by weight: the suspending agent comprises the following components in parts by mass: 16 parts of acrylate polymer, 17 parts of propylene glycol block copolymer, 3 parts of surfactant, 1 part of thickener and 58 parts of ceramic dispersant.
Comparative example 6
The preparation method of the ceramic tile with the glaze surface having the diamond effect is the same as that of the ceramic tile in the embodiment 4, except that the distribution and the parameters of the semi-polished grinding blocks are different; the block distribution and parameters of the half-polished polisher are shown in the following tables 4-6:
TABLE 4 Polisher station 1
TABLE 5 Polisher station 2
TABLE 6 Polisher station 3
Comparative example 7
The preparation method of the ceramic tile with the glaze surface having the diamond effect is the same as that of the ceramic tile in the embodiment 4, except that the distribution and parameters of the semi-polished grinding blocks are different; the block distribution and parameters of the half-polished polisher are shown in the following tables 7-9:
TABLE 7 Polisher station 1
TABLE 8 Polisher station 2
TABLE 9 Polisher station 3
Test example 1
The test example verifies that the different dry particle size grading percentage contents in different dry particle glazes have influences on the glaze slurry suspension property, the glaze surface flatness and the glazing state of the dry particle glazes.
The dry glaze of examples 1-3 and comparative examples 1-3 was aged for 8 hours to see precipitation effect; then at 400g/m 2 The glazing amount of the diamond coating is that the stone-like body with the concave-convex effect is glazed, the glaze curtain condition is observed, the glaze effect is observed after firing, and whether the diamond light effect is reflected after polishing or not, and the specific detection results are shown in the following table 10.
TABLE 10 influence of grading percentage content of different dry particle sizes on the suspensibility of dry particle glaze
Sample (I)
|
Suspension property
|
Flatness of glaze surface
|
Glazing state
|
Example 1
|
Is normal
|
Good flatness
|
Glaze screen stabilization
|
Example 2
|
Is normal
|
Good flatness
|
Glaze screen stabilization
|
Example 3
|
Is normal and normal
|
Good flatness
|
Glaze screen stabilization
|
Comparative example 1
|
Has already precipitated
|
Orange peel with poor leveling property
|
Easy-to-block and-break glaze curtain
|
Comparative example 2
|
Easy thixotropy
|
Good flatness
|
The glaze screen is easy to agglomerate and break
|
Comparative example 3
|
Easy thixotropy
|
Good flatness
|
The glaze curtain is easy to agglomerate and break |
From the results in table 10, it can be seen that in the range of the dry particle size distribution percentage, i.e., 10-35% of particles with 120-180 meshes and 65-90% of particles with 180-250 meshes, the dry particle glaze has normal suspension performance, good glaze surface flatness and stable glaze curtain. The content of 120-180-mesh particles in the comparative example 1 is more than 40%, and the particles are too large, so that precipitation is caused and the suspension performance is poor; the content of particles of 180-250 meshes in the comparative example 2 is high and reaches 95%, so that thixotropy is easy to occur and the suspension performance is poor; comparative example 3 contains particles > 250 mesh and is also too fine, eventually leading to thixotropic behavior and poor suspension properties.
Test example 2
In order to show that the raw material composition of the suspending agent can effectively avoid glaze spraying bubbles and recessed glaze conditions of glaze, the dry granular glaze prepared in examples 1-3 and comparative examples 4-5 is adopted for performance detection, and the specific method is as follows:
the dry particle glaze prepared in example 1 and comparative examples 4 to 5 is used at a rate of 400g/m 2 The glazing amount of the glaze curtain is sprayed on the stone-like blank with the concave-convex effect, and then the specific detection results of the glaze curtain state (concave glaze and bubbles) are directly sprayed on the pilot-test standby line glaze are shown in the following table 11.
TABLE 11
Sample (I)
|
Condition of glaze spraying bubble/concave glaze
|
Example 1
|
Basically has no concave glaze and bubbles, and the glaze slip has excellent leveling property
|
Example 2
|
Basically has no concave glaze and bubbles, and the glaze slip has excellent leveling property
|
Example 3
|
Basically has no concave glaze and bubbles, and the glaze slip has excellent leveling property
|
Comparative example 4
|
Concave glaze and bubbles
|
Comparative example 5
|
The existence of scattered concave glaze and bubbles |
As shown in table 11, fig. 1 and fig. 2, fig. 1 is a diagram showing a state of glaze curtain after glaze pouring is performed using comparative example 4. Fig. 2 is a state diagram of the glaze curtain after the glaze is sprayed in the embodiment 1. As can be seen from the comparison of the suspending agent tests in the test results of fig. 1 and 2, the glaze curtain state after the glaze material is sprayed in the comparative example 4 has more bubbles and recessed glaze; the suspending agent in the embodiment 1 of the invention is very effective in eliminating the defects of glaze pouring and recessed glaze and bubbles, and the glaze pouring process is smooth. Meanwhile, tests show that the technical scheme of the suspending agent comprises 10-13 parts of acrylate polymer, 6-10 parts of propylene glycol block copolymer, 1-3 parts of surfactant, 0-3 parts of thickener and 70-81 parts of ceramic dispersant, the glaze spraying condition is good, recessed glaze and bubbles are basically avoided, and the glaze slip leveling property is excellent.
Test example 3
In this test example, the ceramic tiles having a sand-glazed surface with a diamond effect described in examples 1 to 3 and comparative example 6 were subjected to various conventional physical property tests, and the test methods and test results are shown in table 12.
The detection method comprises the following steps:
antifouling performance: GB/T3810.14-2016;
wear resistance: GB/T3810.7-2016;
acid and alkali resistance: GB/T3810.13-2016;
TABLE 12 ceramic tile Performance testing
Item
|
Antifouling Properties (grade)
|
Degree of abrasion resistance (grade)
|
Acid and alkali resistance (grade)
|
Glossiness (degree)
|
Example 1
|
5
|
4
|
GLA
|
36
|
Example 2
|
5
|
4
|
GLA
|
35
|
Example 3
|
5
|
4
|
GL A
|
40
|
Comparative example 6
|
3
|
4
|
GL A
|
90
|
Comparative example 7
|
4
|
3
|
GL A
|
85 |
The results in table 12 show that comparative example 6 is a semi-polished ceramic tile, the distribution and parameters of the polishing machine and the number of the polishing machine positions 1 are small, a phenomenon of polishing through occurs (as shown in fig. 5), the antifouling performance is inferior to that of the ceramic tile with the diamond effect on the glaze surface of the ceramic tile, and the glossiness of comparative example 6 is high, i.e., the glossiness is excessively bright.
Comparative example 7 is a semi-polished ceramic tile, the distribution and parameters of the polishing machine's abrasive blocks, the mesh number of the polishing machine position 1 is large, the polishing is white, i.e. the ceramic tile is not polished to the position (as shown in fig. 6), the antifouling performance of the ceramic tile is inferior to that of the ceramic tile with the glaze surface having diamond effect, and the glossiness of comparative example 7 is high, i.e. the glossiness is over-bright.
Fig. 3 is a diagram of an actual product of ceramic tile with diamond-like light effect on its glazed surface according to embodiment 4 of the present invention. The polished product is observed under the microcosmic condition, and the white part is a polished local area and the smooth part is a diamond light effect area by combining the microcosmic structure diagram and the element analysis and comprehensive analysis.
Fig. 4 is a concave-convex effect diagram of a ceramic tile with a glaze surface having a diamond optical effect in embodiment 5 of the present invention. As can be seen from figure 4, the ceramic tile has fine grain patterns, has strong concave-convex three-dimensional layering, and can present special diamond luster texture which is dazzling, glittering, translucent, sub-bright and bright.
Fig. 5 shows a ceramic tile of comparative example 6, with diamond effect on the glaze, showing a phenomenon of being thrown through.
FIG. 6 shows a ceramic tile of comparative example 7, which has a diamond effect on the glaze surface and is whitened by polishing.
In conclusion, the glaze of the ceramic tile with the diamond light effect has obvious diamond light effect, and breaks through the original inherent gloss mode of non-sub-bright or non-bright-sub-bright. Innovations are made on the research and development conception, and a brand new special fluorescent and glossy product with the characteristics of dazzling, glittering and translucent, sub-matte appearance and glittering and non-glittering appearance is created. The project can change the problems of single glaze variety, various colors and homogenization phenomena of the existing ceramic glazed tile, provides a novel glazed tile product for the ceramic glazed tile industry, enriches the types of the glazed tile and meets the requirements of individuation and diversification of consumers.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.