Preparation method of polished tile with local inlaid pattern effect

Abstract

The invention discloses a preparation method of a polished tile with an inlaid pattern effect locally, and belongs to the technical field of polished tile preparation. Pressing and forming: pressing the powder by using a mold with a concave-convex structure to obtain a green brick, forming a plurality of pits in the green brick, and then drying the green brick; spraying transparent cover glaze; high-temperature-resistant printing ink is prepared, an ink-jet printer is used for printing a layer of patterns of 5-15 microns on the bottom faces of the pits, and then a 3D printer is used for printing a layer of glue of 0.5-1 mm above the patterns; applying dry particles on the whole surface of the green brick; the dry granules are formed by mixing dry granules A with the diameter of 0.1-1 mm and dry granules B with the diameter of 1-2 mm according to the ratio of 1: 1; and firing the green brick in a kiln, and polishing. In this way, the polished tile prepared through the method is clear in boundary and pattern, and the plane polished tile can be prepared. And meanwhile, the patterns are sealed in the pits, so that the risk of falling off does not exist.

Description

Technical Field

[0001] The invention relates to the technical field of polishing tile preparation, and in particular to a method for preparing a polishing tile having a partially mosaic pattern effect. Background Art

[0002] Polished tiles are widely used in the construction industry, for example, as wall and floor materials. With people's pursuit of beauty, polished tiles with mosaic patterns are popular among consumers.

[0003] Traditional polished tiles with mosaic effect have the following preparation processes:

[0004] (1) Laying process: Laying the polishing tile powder in a grid and pressing it into shape; firing it to form a polishing tile embryo; and polishing it to obtain a polished tile. However, since the pattern powder and the main body powder of the polishing tile are mixed during the pressing and firing process, the boundary between the mosaic pattern on the polishing tile and the main body of the polishing tile is not clear, so the pattern effect is not good.

[0005] (2) Sheet material process: the sheet material with pattern and polishing tile powder are pressed into shape; fired to form a polishing tile embryo; polished to obtain polished tile. Although the boundary is clearer, the pattern is not clear enough, which also affects the final pattern effect.

[0006] (3) CN109293399B discloses a dry-grain brick with a stone-like embossed texture and a preparation method thereof, which comprises applying a base glaze on the brick blank, and printing a stone-like pattern by inkjet; applying glue to the stone texture of the inkjet pattern and then spreading dry grains on the brick surface; removing the dry grains that are not firmly adhered; applying a covering glaze on the brick surface, and firing. However, the pattern is directly printed on the base glaze, and the dry grains are spread on the pattern. After firing, a convex pattern will be formed on the brick surface, making it difficult to form a flat polished brick. In addition, the pattern and the base glaze are not firmly bonded, and there is a risk of falling off.

[0007] Based on this, the present invention designs a method for preparing a polished tile having a partial mosaic pattern effect to solve the above problem. Summary of the invention

[0008] In view of the above-mentioned shortcomings of the prior art, the present invention provides a method for preparing a polished tile having a partial mosaic pattern effect.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A method for preparing a polished tile having a partial mosaic effect comprises the following steps:

[0011] Step 1: Apply powder material: apply the main brick powder material on the mold frame;

[0012] Step 2: Pressing and molding: The powder is pressed into a brick blank using a mold having a concave-convex structure, a number of pits are formed on the brick blank, and then the brick blank is dried;

[0013] Step 3: Spray transparent glaze: spray the glaze on the surface of the brick and then dry it;

[0014] Step 4: Prepare high temperature resistant printing ink, use an inkjet printer to print a 5-15 μm pattern on the bottom of the pit, and then use a 3D printer to print a 0.5-1 mm glue layer on top of the pattern;

[0015] Step 5: Apply dry particles on the entire surface of the brick; the dry particles are mixed with dry particles A with a diameter of 0.1 to 1 mm and dry particles B with a diameter of 1 to 2 mm in a ratio of 1:1; the dry particles B include two parts, the inside of which is made of the same raw material as the dry particles A, and the outside of the dry particles B is coated with 0.2 mm glue and then dried;

[0016] Step 6: Suck away the excess dry particles that are not stuck by the glue, so that only the dry particles remain at the glue above the pattern;

[0017] Step 9: Put the brick into the kiln for firing. During the firing process, the glue is decomposed by heat, and the dry particles are filled into the pits to form a vitreous structure, sealing the printed pattern in the pits;

[0018] Step 10: Use a polishing machine to polish the brick body to obtain a polished tile with a partial mosaic pattern effect.

[0019] Furthermore, in step 2, a plurality of regular or irregular shaped pits are formed on the brick.

[0020] Furthermore, in step 2, the depth of the pit is controlled to be 1 to 3 mm.

[0021] Furthermore, in step 4, the glue is transparent glue.

[0022] Furthermore, in step 4, the glue is methacrylic adhesive.

[0023] Furthermore, in step four, the raw materials of the high temperature resistant printing ink include, by weight: 35 to 40 parts of acrylic resin, 1 to 3 parts of layered hydrotalcite, 0.03 to 0.1 parts of zirconium magnesium chromium spinel powder, 0.03 to 0.1 parts of tin oxide, 1 to 3 parts of porous silica nanospheres, 2 to 6 parts of nano lithium titanate, and 1 to 5 parts of pigment.

[0024] Furthermore, in step five, the raw materials of the dry particles A include, by weight: 50-55 parts of waste glass, 5-7 parts of α-nano alumina, 3-5 parts of borax, 0.3-1 part of cerium oxide, 3-5 parts of zirconium silicate, 1-3 parts of potassium carbonate, and 0.8-1.3 parts of boron oxide.

[0025] Furthermore, in step five, the preparation method of the dry particles A is: the raw materials are mixed and sintered at 1500-1600° C. to form a liquid melt, and then ground to meet the corresponding fineness requirements to obtain dry particles of different shapes.

[0026] Furthermore, in step nine, the firing time is 45 to 70 minutes, the low-temperature preheating temperature is 900 to 1000°C, and the high-temperature firing temperature is 1150 to 1250°C.

[0027] Furthermore, the method further comprises step 7: spraying a layer of glue with a thickness of 0.2 to 0.5 mm on the entire surface of the brick blank to fix the position of the dry particles. Step 8: drying the brick blank.

[0028] Compared with the prior art, the present invention has the following beneficial effects: after applying the powder, the present invention is pressed into a brick blank with several pits by a mold, and then a transparent glaze is sprayed, and then a layer of 5-15μm pattern is printed on the bottom of the pit by an inkjet printer, and then a layer of 0.5-1mm glue is printed on the top of the pattern by a 3D printer, and two different diameters of dry particles are applied, and the position of the dry particles is fixed with glue. During the firing process, the dry particles are filled into the pits and form a vitreous structure, and the printed pattern is sealed in the pits. After polishing, the mosaic pattern on the polished tile has a clear boundary with the main body of the polished tile and the pattern is clear, the effect is good, and a flat polished tile can be prepared. At the same time, the pattern is sealed in the pit, and there is no risk of falling off. The polished tile prepared by the present invention has the advantages of high flexural strength and high compressive strength. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: In some embodiments, a method for preparing a polished tile having a partial mosaic effect comprises the following steps:

[0031] Step 1: Apply powder material: apply the main brick powder material on the mold frame;

[0032] Step 2: Pressing and molding: The powder is pressed into a brick blank using a mold having a concave-convex structure, forming a number of regular or irregular shaped pits on the brick blank, and then the brick blank is dried;

[0033] The shape of the pit depends on the shape of the concave-convex structure of the mold. The side wall of the pit can be a vertical surface, or a curved surface, an inclined surface, etc., such as a curved surface pit, a truncated cone pit, a rectangular parallelepiped pit, etc. The depth of the pit is controlled at 1mm;

[0034] Step 3: Spray transparent glaze: spray the glaze on the surface of the brick and then dry it;

[0035] Step 4: Weigh 35 parts of acrylic resin, 1 part of layered hydrotalcite, 0.03 parts of zirconium magnesium chromium spinel powder, 0.03 parts of tin oxide, 1 part of porous silica nanospheres, 2 parts of nano lithium titanate, and 1 part of pigment, mix them evenly to obtain a high temperature resistant printing ink, use an inkjet printer to print a layer of 5 μm pattern on the bottom surface of the pit, and then use a 3D printer to print a layer of 0.5 mm glue (methacrylic adhesive) on top of the pattern;

[0036] Step 5: Apply dry particles on the entire surface of the brick; the dry particles are made by mixing dry particles A with a diameter of 0.1 mm and dry particles B with a diameter of 1 mm in a ratio of 1:1; wherein the preparation method of the dry particles A is: 50 parts of waste glass, 5 parts of α nano-alumina, 3 parts of borax, 0.3 parts of cerium oxide, 3 parts of zirconium silicate, 1 part of potassium carbonate, and 0.8 parts of boron oxide, and then sintered at 1600°C to form a liquid melt, and then ground to meet the corresponding fineness requirements to obtain dry particles of different shapes. Among them, dry particles B include an inner and outer part, the inner part of which is the same as the raw material of dry particles A, and the outer part of dry particles B is coated with 0.2mm glue and then dried.

[0037] Step 6: Suck away the excess dry particles that are not stuck by the glue, so that only the dry particles remain at the glue above the pattern;

[0038] Step 7: Spray a layer of 0.2mm glue on the entire surface of the brick to fix the position of the dry particles;

[0039] Step 8: Drying the bricks;

[0040] Step 9: Put the brick into the kiln for firing. The firing time is 45 minutes. The low-temperature preheating temperature is 900℃ and the high-temperature firing temperature is 1150℃. During the firing process, the glue is decomposed by heat, and the dry particles are filled into the pits to form a vitreous structure, sealing the printed pattern in the pits. There are tiny depressions on the brick body at the pattern.

[0041] Step 10: Use a polishing machine to polish the brick body to obtain a polished tile with a partial mosaic pattern effect.

[0042] Embodiment 2: In some embodiments, a method for preparing a polished tile having a partial mosaic effect comprises the following steps:

[0043] Step 1: Apply powder material: apply the main brick powder material on the mold frame;

[0044] Step 2: Pressing and molding: The powder is pressed into a brick blank using a mold having a concave-convex structure, forming a number of regular or irregular shaped pits on the brick blank, and then the brick blank is dried;

[0045] The shape of the pit depends on the shape of the concave-convex structure of the mold. The side wall of the pit can be a vertical surface, or a curved surface, an inclined surface, etc., such as a hemispherical pit, a truncated cone pit, a rectangular pit, etc. The depth of the pit is controlled at 3mm;

[0046] Step 3: Spray transparent glaze: spray the glaze on the surface of the brick and then dry it;

[0047] Step 4: Weigh 40 parts of acrylic resin, 3 parts of layered hydrotalcite, 0.1 parts of zirconium magnesium chromium spinel powder, 0.1 parts of tin oxide, 3 parts of porous silica nanospheres, 6 parts of nano lithium titanate, and 5 parts of pigment, mix them evenly to obtain a high temperature resistant printing ink, use an inkjet printer to print a layer of 15 μm pattern on the bottom surface of the pit, and then use a 3D printer to print a layer of 1 mm glue (methacrylic adhesive) on top of the pattern;

[0048] Step 5: Apply dry particles on the entire surface of the brick; the dry particles are made by mixing dry particles A with a diameter of 1 mm and dry particles B with a diameter of 2 mm in a ratio of 1:1; wherein the preparation method of the dry particles A is: mix 55 parts of waste glass, 7 parts of α nano-alumina, 5 parts of borax, 1 part of cerium oxide, 5 parts of zirconium silicate, 3 parts of potassium carbonate, and 1.3 parts of boron oxide, and then sinter at 1500°C to form a liquid melt, and then grind it to meet the corresponding fineness requirements to obtain dry particles of different shapes. Among them, dry particles B include an inner and outer part, the inner part of which is the same as the raw material of dry particles A, and the outer part of dry particles B is coated with 0.2mm glue and then dried.

[0049] Step 6: Suck away the excess dry particles that are not stuck by the glue, so that only the dry particles remain at the glue above the pattern;

[0050] Step 7: Spray a layer of 0.5mm glue on the entire surface of the brick to fix the position of the dry particles;

[0051] Step 8: Drying the bricks;

[0052] Step 9: Put the brick into the kiln for firing. The firing time is 70 minutes. The low-temperature preheating temperature is 1000℃ and the high-temperature firing temperature is 1250℃. During the firing process, the glue is decomposed by heat, and the dry particles are filled into the pits to form a vitreous structure, sealing the printed pattern in the pits. There are tiny depressions on the brick body at the pattern.

[0053] Step 10: Use a polishing machine to polish the brick body to obtain a polished tile with a partial mosaic pattern effect.

[0054] Embodiment 3: In some embodiments, a method for preparing a polished tile having a partial mosaic effect comprises the following steps:

[0055] Step 1: Apply powder material: apply the main brick powder material on the mold frame;

[0056] Step 2: Pressing and molding: The powder is pressed into a brick blank using a mold having a concave-convex structure, forming a number of regular or irregular shaped pits on the brick blank, and then the brick blank is dried;

[0057] The shape of the pit depends on the shape of the concave-convex structure of the mold. The side wall of the pit can be a vertical surface, or a curved surface, an inclined surface, etc., such as a hemispherical pit, a truncated cone pit, a rectangular pit, etc. The depth of the pit is controlled at 2.5mm;

[0058] Step 3: Spray transparent glaze: spray the glaze on the surface of the brick and then dry it;

[0059] Step 4: Weigh 37 parts of acrylic resin, 2 parts of layered hydrotalcite, 0.05 parts of zirconium magnesium chromium spinel powder, 0.07 parts of tin oxide, 1.8 parts of porous silica nanospheres, 4 parts of nano lithium titanate, and 2 parts of pigment, mix them evenly to obtain a high temperature resistant printing ink, use an inkjet printer to print a layer of 10 μm pattern on the bottom surface of the pit, and then use a 3D printer to print a layer of 0.7 mm glue (methacrylic adhesive) on top of the pattern;

[0060] Step 5: Apply dry particles on the entire surface of the brick; the dry particles are made by mixing dry particles A with a diameter of 0.7 mm and dry particles B with a diameter of 1.8 mm in a ratio of 1:1; wherein the preparation method of the dry particles A is: 52 parts of waste glass, 6 parts of α nano-alumina, 4 parts of borax, 0.5 parts of cerium oxide, 4 parts of zirconium silicate, 1.8 parts of potassium carbonate, and 0.9 parts of boron oxide, and then sintered at 1550°C to form a liquid melt, and then ground to meet the corresponding fineness requirements to obtain dry particles of different shapes. Among them, dry particles B include an inner and outer part, the inner part of which is the same as the raw material of dry particles A, and the outer part of dry particles B is coated with 0.2mm glue and then dried.

[0061] Step 6: Suck away the excess dry particles that are not stuck by the glue, so that only the dry particles remain at the glue above the pattern;

[0062] Step 7: Spray a layer of 0.3mm glue on the entire surface of the brick to fix the position of the dry particles;

[0063] Step 8: Drying the bricks;

[0064] Step 9: Put the brick into the kiln for firing. The firing time is 60 minutes. The low-temperature preheating temperature is 955℃ and the high-temperature firing temperature is 1200℃. During the firing process, the glue is decomposed by heat, and the dry particles are filled into the pits to form a vitreous structure, sealing the printed pattern in the pits. There are tiny depressions on the brick body at the pattern.

[0065] Step 10: Use a polishing machine to polish the brick body to obtain a polished tile with a partial mosaic pattern effect.

[0066] Comparative Example 1: Different from Example 3, in step 5, the dry particles are replaced with dry particles with a diameter of 1.3 mm.

[0067] Comparative Example 2: Different from Example 3, the high temperature resistant printing ink is replaced by commercially available ceramic inkjet printing ink.

[0068] Experimental Example: Observe the clarity of the boundary between the mosaic pattern and the main body of the polished tile of Examples 1-3 and Comparative Example 1, and the clarity of the pattern.

[0069] At the same time, the flexural strength and compressive strength of the polished bricks were tested (the raw materials of the brick blanks and glazes of the present invention refer to Example 3 of CN118164744B).

[0070] Table 1

[0071]

[0072]

[0073] It can be seen from Comparative Example 1 that the use of two dry particles of different sizes and the coating of the glue layer on the outside of the dry particles B are beneficial to the composite strength of the dry particles A and the dry particles B in the early stage, which is beneficial to enhancing the bonding strength of the vitreous structure, ensuring the clear boundary of the vitreous structure, and avoiding the formation of a jagged boundary at the boundary where no powder penetrates.

[0074] It can be seen from Comparative Example 2 that the high temperature resistant printing ink of the present invention has an obvious high temperature resistant effect, the prepared polished brick pattern is clear, and there is no diffusion problem at the pattern boundary, and the pattern does not have the problem of shrinking and deforming inward.

[0075] The present invention is pressed into a brick blank with several pits by a mold after applying powder, and then a transparent glaze is sprayed, and then a layer of 5-15μm pattern is printed on the bottom surface of the pit by an inkjet printer, and then a layer of 0.5-1mm glue is printed on the top of the pattern by a 3D printer, and two different diameters of dry particles are applied, and the position of the dry particles is fixed with glue. During the firing process, the dry particles are filled into the pits and form a vitreous structure, and the printed pattern is sealed in the pits. After polishing, the mosaic pattern on the polished brick has a clear boundary with the main body of the polished brick and the pattern is clear, the effect is good, and a flat polished brick can be prepared. At the same time, the pattern is sealed in the pit, and there is no risk of falling off. The polished brick prepared by the present invention has the advantages of high flexural strength and high compressive strength.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing a polished tile having a partial mosaic effect, characterized in that: The following steps are involved: Step 1: Apply powder material: apply the main brick powder material on the mold frame; Step 2: Pressing and molding: The powder is pressed into a brick blank using a mold having a concave-convex structure, a number of pits are formed on the brick blank, and then the brick blank is dried; Step 3: Spray transparent glaze: spray the glaze on the surface of the brick and then dry it; Step 4: Prepare high temperature resistant printing ink, use an inkjet printer to print a 5-15 μm pattern on the bottom of the pit, and then use a 3D printer to print a 0.5-1 mm glue layer on top of the pattern; Step 5: applying dry particles on the entire surface of the brick; the dry particles are formed by mixing dry particles A with a diameter of 0.1 to 1 mm and dry particles B with a diameter of 1 to 2 mm in a ratio of 1:1; the dry particles B include two parts, the inside of which is made of the same raw material as the dry particles A, and the outside of the dry particles B is coated with glue and then dried; Step 6: Suck away the excess dry particles that are not stuck by the glue, so that only the dry particles remain at the glue above the pattern; Step 9: Put the brick into the kiln for firing. During the firing process, the glue is decomposed by heat, and the dry particles are filled into the pits to form a vitreous structure, sealing the printed pattern in the pits; Step 10: Use a polishing machine to polish the brick body to obtain a polished tile with a partial mosaic pattern effect.

2. The method for preparing a polished tile having a partial mosaic effect according to claim 1, characterized in that: In step 2, a plurality of regular or irregular shaped pits are formed on the brick.

3. The method for preparing a polished tile having a partial mosaic effect according to claim 2, characterized in that: In step 2, the depth of the pit is controlled to be 1 to 3 mm.

4. The method for preparing a polished tile having a partial mosaic effect according to claim 3, characterized in that: In step 4, the glue is transparent glue.

5. The method for preparing a polished tile having a partial mosaic effect according to claim 4, characterized in that: In step 4, the glue is methacrylic adhesive.

6. The method for preparing a polished tile having a partial mosaic effect according to claim 5, characterized in that: In step 4, the raw materials of the high temperature resistant printing ink include, by weight: 35 to 40 parts of acrylic resin, 1 to 3 parts of layered hydrotalcite, 0.03 to 0.1 parts of zirconium magnesium chromium spinel powder, 0.03 to 0.1 parts of tin oxide, 1 to 3 parts of porous silica nanospheres, 2 to 6 parts of nano lithium titanate, and 1 to 5 parts of pigment.

7. The method for preparing a polished tile having a partial mosaic effect according to claim 6, characterized in that: In step 5, the raw materials of the dry particles A include, by weight: 50-55 parts of waste glass, 5-7 parts of α-nano alumina, 3-5 parts of borax, 0.3-1 part of cerium oxide, 3-5 parts of zirconium silicate, 1-3 parts of potassium carbonate, and 0.8-1.3 parts of boron oxide.

8. The method for preparing a polished tile having a partial mosaic effect according to claim 7, characterized in that: In step 5, the preparation method of the dry particles A is as follows: the raw materials are mixed and sintered at 1500-1600° C. to form a liquid melt, and then ground to meet the corresponding fineness requirements to obtain dry particles of different shapes.

9. The method for preparing a polished tile having a partial mosaic effect according to claim 8, characterized in that: In step nine, the firing time is 45 to 70 minutes, the low-temperature preheating temperature is 900 to 1000°C, and the high-temperature firing temperature is 1150 to 1250°C.

10. The method for preparing a polished tile having a partial mosaic effect according to claim 9, characterized in that: The step also includes step seven: spraying a layer of glue with a thickness of 0.2 to 0.5 mm on the entire surface of the brick to fix the position of the dry particles; Step 8: Dry the bricks.

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