Preparation method of whole-body landscape brick with flashing effect

Abstract

The invention discloses a preparation method of a whole-body landscape brick with a flashing effect, which comprises the following steps: weighing raw materials of a green body according to a proportion, adding the raw materials into a ball mill, adding water, carrying out ball milling to obtain slurry, transferring the slurry into a homogenizing tank, mixing the slurry with a coloring material, and homogenizing to obtain the whole-body landscape brick with the flashing effect. Feeding the homogenized slurry into a spray tower, carrying out atomization powder making treatment at 940-960 DEG C to obtain powder, aging the powder for 24 hours, carrying out punch forming to obtain a green body, polishing, dedusting and drying the green body to obtain a green body, glazing the exterior of the green body, printing a pattern, drying at 180-250 DEG C, spraying dry granular glaze, and carrying out vacuum drying to obtain a finished product. And drying at 180-250 DEG C to obtain a green brick, and feeding the green brick into a roller kiln for primary firing to obtain the whole-body landscape brick with the flashing effect. The whole-body landscape brick has the advantages of simple process and low production cost, and the obtained whole-body landscape brick has good flash effect and anti-slip effect.

Description

Technical Field

[0001] The invention belongs to the technical field of ceramic production, and in particular relates to a method for preparing a full-body landscape brick with a flashing effect. Background Art

[0002] Full-body landscape bricks are a type of building material, which is characterized by the color, texture and material of the brick body being consistent from the surface to the inside. This type of brick is different from traditional surface veneer or coated bricks because its color and texture run through the entire brick body and will not lose its original aesthetic effect due to surface wear or weathering. It is mainly used in large areas such as commercial spaces, squares, and sidewalks, and full-body landscape bricks are mostly in the form of concave and convex surfaces, which are non-slip and wear-resistant. At the same time, landscape bricks with a glittering effect can reflect light and produce a sense of gloss, giving people a luxurious and exquisite feeling, which can make the space look more spacious and bright, and are deeply loved by consumers. Landscape bricks with a glittering effect are usually prepared by polishing or adding metal. The polishing method has the characteristics of simple operation and low cost, but the resulting landscape bricks have poor glittering effects and uneven product quality. The method of adding metals (such as gold, silver, titanium, etc.) will significantly increase production costs and affect the promotion and application of products. Summary of the invention

[0003] In view of the above shortcomings, the present invention discloses a method for preparing a full-body landscape brick with a flashing effect, which has the advantages of simple process and low production cost, and the obtained full-body landscape brick has good flashing effect and anti-slip effect.

[0004] The present invention is achieved by adopting the following technical solutions: A method for preparing a full-body landscape brick with a flashing effect comprises the following steps: (1) Weigh the raw materials of the green body according to the proportion and add them into the ball mill, then add water to ball mill to obtain slurry, then transfer the slurry into a homogenizing tank and mix it with the coloring material for homogenization, and the homogenization time is 36 to 60 hours; (2) sending the slurry treated in step (1) into a spray tower for atomization treatment at 940-960° C. to obtain a powder, wherein the water content of the powder is 6.5-7.2%; (3) The powder obtained in step (2) is aged for 24 hours and then pressed to obtain a body, and then the body is polished, dusted and dried to obtain a green body, wherein the water content of the green body is less than 0.5%, and the dry body strength of the green body is greater than 0.8 MPa. The dry body strength of the green body is limited to be above 0.8 MPa, which is conducive to avoiding damage and deformation of the brick body during subsequent forming, drying and firing processes; (4) After glazing the outside of the green body obtained in step (3), a pattern is printed, and then the green body is dried at 180-250° C. for 45-75 seconds, and then the green body is sprayed with dry granular glaze, and then dried at 180-250° C. to obtain a green body, and then the green body is sent to a roller kiln for firing once to obtain a full-body landscape brick with a flashing effect, wherein the water content of the green body before entering the kiln is less than 1.5%, the firing temperature is 1155-1165° C., and the firing cycle is 40-45 minutes; drying after glazing and then spraying the dry granular glaze with drying is beneficial to improving the spraying effect of the dry granular glaze, thereby improving the anti-fouling, wear-resistant, and flashing properties of the glaze on the surface of the landscape brick; The dry granular glaze comprises the following components in parts by weight: 18 to 25 parts of quartz stone, 12 to 18 parts of potassium feldspar, 12 to 18 parts of sodium feldspar, 12 to 18 parts of aluminum oxide, 6 to 10 parts of barium oxide, 4 to 6 parts of boron oxide, 5 to 8 parts of zinc oxide, 4 to 7 parts of talc, 6 to 10 parts of kaolin, 1.5 to 3 parts of strontium carbonate and 0.2 to 0.5 parts of mica flakes.

[0005] Furthermore, the raw materials of the green body in step (1) include the following components in parts by weight: 25-35 parts of potassium-sodium feldspar, 15-20 parts of washed mud, 8-15 parts of potassium-sodium sand, 12-18 parts of potassium sand, 10-15 parts of bentonite, 3-8 parts of bauxite, 1-3 parts of talc, 3-6 parts of wollastonite, and 3-8 parts of kaolin.

[0006] Furthermore, the slurry in step (1) is passed through a 100-mesh screen and then transferred to a homogenization tank. The 100-mesh screen can effectively remove impurities in the slurry.

[0007] Furthermore, the coloring material in step (1) includes any one of black material and white material or a combination of the two. The black material is a common raw material for ceramic production, which is a black spinel structure product produced by high-temperature firing of a mixture of chromium oxide and iron oxide; the white material is a common raw material for ceramic production, and its main chemical components include silicon dioxide, aluminum oxide and iron oxide.

[0008] Furthermore, in step (1), the amount of water added to the ball mill is 30-40% of the total mass of the raw materials.

[0009] Furthermore, the discharge fineness of the ball mill in step (1) is set to a 250-mesh sieve, and the residue on the sieve is 0.7-0.9%.

[0010] Furthermore, the glaze slurry used for glazing in step (4) is prepared from raw glaze powder, and the raw glaze powder includes the following components in parts by weight: 35-40 parts of potassium feldspar, 3-8 parts of nepheline, 5-10 parts of kaolin, 12-18 parts of quartz, 3-8 parts of aluminum oxide, 8-12 parts of barium carbonate, 2-5 parts of talc, 8-10 parts of frit, and 5-10 parts of sodium oxide.

[0011] Furthermore, the preparation method of the glaze slurry is to weigh the following components by mass: 100 parts of raw glaze powder, 0.10-0.15 parts of methyl cellulose, 0.30-0.40 parts of sodium tripolyphosphate, and 30-40 parts of water, and then add them into a ball mill for grinding, and the fineness is set to 325 mesh sieve, and the residue on the sieve is 0.4-0.6%.

[0012] Furthermore, the press in step (3) uses a mold with a concave-convex structure, so that the surface of the blank obtained by stamping has a concave-convex effect.

[0013] Compared with the prior art, this technical solution has the following beneficial effects: (1) The present invention adopts a glaze spraying process on the surface of the outer surface of the green body, and the press uses a mold with a concave-convex structure, so that the surface of the green body obtained by stamping has a concave-convex effect, thereby bringing about a better anti-slip effect.

[0014] (2) The present invention configures a suitable dry granular glaze and adds a certain proportion of mica flakes, sprays the glaze on the green body with a spray gun atomization method, and then controls the temperature for firing, so that the obtained landscape brick can present a good flashing effect. In addition, different color effects are added to the ceramic base, and a full-body effect similar to the surface color is achieved through mixing. DETAILED DESCRIPTION

[0015] The present invention is further described by the following examples, but is not intended to be limiting of the present invention. Specific experimental conditions and methods not specified in the following examples are conventional methods commonly known to those skilled in the art.

[0016] Embodiment 1: A method for preparing a full-body landscape brick with a flashing effect, comprising the following steps: (1) Weigh the raw materials of the green body according to the proportion and add them into the ball mill, then add water to ball mill to obtain slurry, then pass the slurry through a 100-mesh screen and transfer it into a homogenizing tank and mix it with the coloring material for homogenization, and the homogenization time is 48 hours; The raw materials of the green body include the following components by weight: 29.5 parts of potassium-sodium feldspar, 18 parts of washed mud, 10 parts of potassium-sodium sand, 15 parts of potassium sand, 11 parts of bentonite, 5 parts of bauxite, 2.5 parts of talc, 4 parts of wollastonite, and 5 parts of kaolin; The coloring material is obtained by mixing white material and black material in a weight ratio of 4:1; The amount of water added to the ball mill is 35% of the total mass of the raw materials; the discharge fineness of the ball mill is set to a 250-mesh sieve with a sieve residue of 0.8%; (2) sending the slurry treated in step (1) into a spray tower for atomization treatment at 950° C. to obtain a powder having a water content of 6.8%; (3) The powder obtained in step (2) is aged for 24 hours and then pressed to obtain a green body, which is then polished, dusted and dried to obtain a green body, wherein the water content of the green body is 0.35%, and the dry body strength of the green body is 0.95 MPa; the press uses a mold with a concave-convex structure so that the surface of the green body obtained by stamping has a concave-convex effect; (4) The green body obtained in step (3) is glazed and then a pattern is printed on the outside, and then dried at 200° C. for 60 seconds, and then sprayed with dry granular glaze, and then dried at 200° C. to obtain a brick, and then the brick is sent to a roller kiln for one-time firing to obtain a full-body landscape brick with a flashing effect, wherein the water content of the brick before entering the kiln is 1.25%, the firing temperature is 1160° C., and the firing cycle is 42 minutes; The dry granular glaze comprises the following components in parts by weight: 20 parts of quartz stone, 15 parts of potassium feldspar, 15 parts of sodium feldspar, 15 parts of aluminum oxide, 8 parts of barium oxide, 5 parts of boron oxide, 6 parts of zinc oxide, 5.5 parts of talc, 8 parts of kaolin, 2 parts of strontium carbonate, and 0.25 parts of mica flakes; The glaze slurry used for glazing is prepared from raw glaze powder, and the raw glaze powder includes the following components in parts by weight: 38 parts of potassium feldspar, 5 parts of nepheline, 8 parts of kaolin, 15 parts of quartz, 5 parts of aluminum oxide, 10 parts of barium carbonate, 3 parts of talc, 9 parts of frit, and 7 parts of sodium oxide, and the frit uses semi-white frit; the preparation method of the glaze slurry is to weigh the following components in parts by weight: 100 parts of raw glaze powder, 0.12 parts of methyl cellulose, 0.35 parts of sodium tripolyphosphate, and 36 parts of water, and then add them into a ball mill for grinding, and the fineness is set to a 325-mesh sieve with a sieve residue of 0.5%.

[0017] Embodiment 2: A method for preparing a full-body landscape brick with a flashing effect, comprising the following steps: (1) Weigh the raw materials of the green body according to the proportion and add them into the ball mill, then add water to ball mill to obtain slurry, then pass the slurry through a 100-mesh screen and transfer it into a homogenizing tank and mix it with the coloring material for homogenization, and the homogenization time is 36 hours; The raw materials of the green body include the following components in parts by weight: 25 parts of potassium-sodium feldspar, 15 parts of washed mud, 8 parts of potassium-sodium sand, 12 parts of potassium sand, 10 parts of bentonite, 3 parts of bauxite, 1 part of talc, 3 parts of wollastonite, and 3 parts of kaolin; The coloring material is obtained by mixing white material and black material in a weight ratio of 4:1; the amount of water added to the ball mill is 30% of the total weight of the raw materials; the discharge fineness of the ball mill is set to a 250-mesh sieve, and the sieve residue is 0.7%; (2) sending the slurry treated in step (1) into a spray tower for atomization and powdering at 940° C. to obtain a powder having a water content of 7.2%; (3) The powder obtained in step (2) is aged for 24 hours and then pressed to obtain a green body, which is then polished, dusted and dried to obtain a green body, wherein the water content of the green body is 0.5% and the dry body strength of the green body is 0.8 MPa; the press uses a mold with a concave-convex structure so that the surface of the green body obtained by stamping has a concave-convex effect; (4) The green body obtained in step (3) is glazed and then a pattern is printed on the outside, followed by drying at 180° C. for 45 seconds, and then sprayed with dry granular glaze, and then dried at 180° C. to obtain a brick, and then the brick is sent to a roller kiln for firing once to obtain a full-body landscape brick with a flashing effect, wherein the water content of the brick before entering the kiln is 1.5%, the firing temperature is 1155° C., and the firing cycle is 45 minutes; The dry granular glaze comprises the following components in parts by mass: 18 parts of quartz, 12 parts of potassium feldspar, 12 parts of sodium feldspar, 12 parts of aluminum oxide, 6 parts of barium oxide, 4 parts of boron oxide, 5 parts of zinc oxide, 4 parts of talc, 6 parts of kaolin, 1.5 parts of strontium carbonate, and 0.2 parts of mica flakes; The glaze slurry used for glazing is prepared from raw glaze powder, and the raw glaze powder includes the following components in parts by weight: 35 parts of potassium feldspar, 3 parts of nepheline, 5 parts of kaolin, 12 parts of quartz, 3 parts of aluminum oxide, 8 parts of barium carbonate, 2 parts of talc, 8 parts of frit, and 5 parts of sodium oxide, and the frit uses semi-white frit; the preparation method of the glaze slurry is to weigh the following components in parts by weight: 100 parts of raw glaze powder, 0.10 parts of methyl cellulose, 0.30 parts of sodium tripolyphosphate, and 30 parts of water, and then add them into a ball mill for grinding, and the fineness is set to a 325-mesh sieve with a sieve residue of 0.4%.

[0018] Embodiment 3: A method for preparing a full-body landscape brick with a flashing effect, comprising the following steps: (1) Weigh the raw materials of the green body according to the proportion and add them into the ball mill, then add water to ball mill to obtain slurry, then pass the slurry through a 100-mesh screen and transfer it into a homogenizing tank and mix it with the coloring material for homogenization, and the homogenization time is 40 hours; The raw materials of the green body include the following components by weight: 32 parts of potassium-sodium feldspar, 17 parts of washed mud, 12 parts of potassium-sodium sand, 16 parts of potassium sand, 12 parts of bentonite, 6 parts of bauxite, 1.5 parts of talc, 5 parts of wollastonite, and 7 parts of kaolin; The coloring material is obtained by mixing white material and black material in a weight ratio of 4:1; the amount of water added to the ball mill is 38% of the total weight of the raw materials; the discharge fineness of the ball mill is set to a 250-mesh sieve, and the sieve residue is 0.8%; (2) sending the slurry treated in step (1) into a spray tower for atomization treatment at 955° C. to obtain a powder, wherein the water content of the powder is 6.6%; (3) The powder obtained in step (2) is aged for 24 hours and then pressed to obtain a green body, which is then polished, dusted and dried to obtain a green body, wherein the water content of the green body is 0.45%, and the dry body strength of the green body is 0.85 MPa; the press uses a mold with a concave-convex structure so that the surface of the green body obtained by stamping has a concave-convex effect; (4) The green body obtained in step (3) is glazed and then a pattern is printed on the outside, followed by drying at 220° C. for 70 seconds, and then sprayed with dry granular glaze, followed by drying at 220° C. to obtain a brick, and then the brick is sent to a roller kiln for firing once to obtain a full-body landscape brick with a flashing effect, wherein the water content of the brick before entering the kiln is 1.0%, the firing temperature is 1158° C., and the firing cycle is 42 minutes; The dry granular glaze comprises the following components in parts by mass: 22 parts of quartz, 16 parts of potassium feldspar, 16 parts of sodium feldspar, 16 parts of aluminum oxide, 9 parts of barium oxide, 5.5 parts of boron oxide, 7 parts of zinc oxide, 5 parts of talc, 9 parts of kaolin, 2.5 parts of strontium carbonate, and 0.4 parts of mica flakes; The glaze slurry used for glazing is prepared from raw glaze powder, and the raw glaze powder includes the following components in parts by weight: 36 parts of potassium feldspar, 6 parts of nepheline, 7 parts of kaolin, 16 parts of quartz, 4 parts of aluminum oxide, 11 parts of barium carbonate, 4 parts of talc, 9 parts of frit, and 8 parts of sodium oxide, and the frit uses semi-white frit; the preparation method of the glaze slurry is to weigh the following components in parts by weight: 100 parts of raw glaze powder, 0.11 parts of methyl cellulose, 0.38 parts of sodium tripolyphosphate, and 38 parts of water, and then add them into a ball mill for grinding, and the fineness is set to a 325-mesh sieve, and the sieve residue is 0.5%.

[0019] Embodiment 4: A method for preparing a full-body landscape brick with a flashing effect, comprising the following steps: (1) Weigh the raw materials of the green body according to the proportion and add them into the ball mill, then add water to ball mill to obtain slurry, then pass the slurry through a 100-mesh screen and transfer it into a homogenizing tank and mix it with the coloring material for homogenization, and the homogenization time is 60 hours; The raw materials of the green body include the following components by weight: 35 parts of potassium-sodium feldspar, 20 parts of washed mud, 15 parts of potassium-sodium sand, 18 parts of potassium sand, 15 parts of bentonite, 8 parts of bauxite, 3 parts of talc, 6 parts of wollastonite, and 8 parts of kaolin; The coloring material is obtained by mixing white material and black material in a weight ratio of 4:1; the amount of water added to the ball mill is 40% of the total weight of the raw materials; the discharge fineness of the ball mill is set to a 250-mesh sieve, and the sieve residue is 0.9%; (2) sending the slurry treated in step (1) into a spray tower for atomization and powdering at 960° C. to obtain a powder having a water content of 6.5%; (3) The powder obtained in step (2) is aged for 24 hours and then pressed to obtain a green body, which is then polished, dusted and dried to obtain a green body, wherein the water content of the green body is 0.35% and the dry body strength of the green body is 0.9 MPa; the press uses a mold with a concave-convex structure so that the surface of the green body obtained by stamping has a concave-convex effect; (4) The green body obtained in step (3) is glazed and then a pattern is printed on the outside, followed by drying at 250° C. for 75 seconds, and then sprayed with dry granular glaze, followed by drying at 250° C. to obtain a brick, and then the brick is sent to a roller kiln for firing once to obtain a full-body landscape brick with a flashing effect, wherein the water content of the brick before entering the kiln is 1.0%, the firing temperature is 1165° C., and the firing cycle is 40 minutes; The preparation method of the full-body landscape brick with a flashing effect comprises the following components by weight: 25 parts of quartz stone, 18 parts of potassium feldspar, 18 parts of sodium feldspar, 18 parts of aluminum oxide, 10 parts of barium oxide, 6 parts of boron oxide, 8 parts of zinc oxide, 7 parts of talc, 10 parts of kaolin, 3 parts of strontium carbonate, and 0.5 parts of mica flakes; The glaze slurry used for glazing is prepared from raw glaze powder, and the raw glaze powder includes the following components in parts by mass: 40 parts of potassium feldspar, 8 parts of nepheline, 10 parts of kaolin, 18 parts of quartz, 8 parts of aluminum oxide, 12 parts of barium carbonate, 5 parts of talc, 10 parts of frit, and 10 parts of sodium oxide, and the frit uses semi-white frit; the preparation method of the glaze slurry is to weigh the following components in parts by mass: 100 parts of raw glaze powder, 0.15 parts of methyl cellulose, 0.40 parts of sodium tripolyphosphate, and 40 parts of water, and then add them into a ball mill for grinding, and the fineness is set to a 325-mesh sieve with a sieve residue of 0.6%.

[0020] Comparative Example 1: The method for preparing the full-body landscape brick with a glittering effect described in this comparative example is different from the method described in Example 1 only in that mica flakes are not added to the dry granular glaze.

[0021] Comparative Example 2: The method for preparing the full-body landscape brick with a glittering effect described in this comparative example is different from the method described in Example 1 only in that the dry granular glaze contains 1 part of mica flakes.

[0022] Comparative Example 3: The method for preparing the full-body landscape brick with a glittering effect described in this comparative example is different from the method described in Example 1 only in that the dry granular glaze contains 2 parts of mica flakes.

[0023] Experimental Example: A full-body landscape brick was prepared according to the method described in Examples 1 to 4 and Comparative Examples 1 to 3, and then the antifouling performance and wear resistance of the full-body landscape brick were tested according to the method described in national standards GB / T 3810.14-2016 and GB / T 3810.7-2016, and the glossiness of the landscape brick was tested using a gloss tester. The specific results are shown in Table 1.

[0024]

[0025] It can be seen from the experimental data that adding a certain proportion of mica flakes according to the method of the present invention (Examples 1 to 4) can improve the glossiness of the landscape bricks and make them have a better sparkling effect. However, adding too much mica flakes (Comparative Examples 2 to 3) does not significantly improve the glossiness, and also affects the surface structure of the landscape bricks, which is not conducive to improving the anti-fouling and wear resistance of the landscape bricks.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for preparing a full-body landscape brick with a flashing effect, characterized in that: The following steps are involved: (1) Weigh the raw materials of the green body according to the proportion and add them into the ball mill, then add water to ball mill to obtain slurry, then transfer the slurry into a homogenizing tank and mix it with the coloring material for homogenization, and the homogenization time is 36 to 60 hours; (2) sending the slurry treated in step (1) into a spray tower for atomization treatment at 940-960° C. to obtain a powder, wherein the water content of the powder is 6.5-7.2%; (3) the powder obtained in step (2) is aged for 24 hours and then pressed to obtain a blank, and then the blank is polished, dusted and dried to obtain a green blank, wherein the water content of the green blank is less than 0.5%, and the dry blank strength of the green blank is greater than 0.8 MPa; (4) The green body obtained in step (3) is glazed and then a pattern is printed on the outside, followed by drying at 180-250° C. for 45-75 seconds, then spraying dry granular glaze, and then drying at 180-250° C. to obtain a brick, and then the brick is sent to a roller kiln for firing once to obtain a full-body landscape brick with a flashing effect, wherein the water content of the brick before entering the kiln is less than 1.5%, the firing temperature is 1155-1165° C., and the firing period is 40-45 minutes; The dry granular glaze comprises the following components in parts by weight: 18 to 25 parts of quartz stone, 12 to 18 parts of potassium feldspar, 12 to 18 parts of sodium feldspar, 12 to 18 parts of aluminum oxide, 6 to 10 parts of barium oxide, 4 to 6 parts of boron oxide, 5 to 8 parts of zinc oxide, 4 to 7 parts of talc, 6 to 10 parts of kaolin, 1.5 to 3 parts of strontium carbonate and 0.2 to 0.5 parts of mica flakes.

2. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: The raw materials of the green body in step (1) include the following components in parts by weight: 25-35 parts of potassium-sodium feldspar, 15-20 parts of washed mud, 8-15 parts of potassium-sodium sand, 12-18 parts of potassium sand, 10-15 parts of bentonite, 3-8 parts of bauxite, 1-3 parts of talc, 3-6 parts of wollastonite, and 3-8 parts of kaolin.

3. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: The slurry in step (1) is passed through a 100-mesh screen and then transferred into a homogenizing tank.

4. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: The coloring material in step (1) includes any one of black material and white material or a combination of the two.

5. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: In step (1), the amount of water added to the ball mill is 30-40% of the total mass of the raw materials.

6. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: The discharge fineness of the ball mill in step (1) is set to a 250-mesh sieve, and the residue on the sieve is 0.7-0.9%.

7. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: The glaze slurry used for glazing in step (4) is prepared from raw glaze powder, which includes the following components in parts by weight: 35-40 parts of potassium feldspar, 3-8 parts of nepheline, 5-10 parts of kaolin, 12-18 parts of quartz, 3-8 parts of aluminum oxide, 8-12 parts of barium carbonate, 2-5 parts of talc, 8-10 parts of frit, and 5-10 parts of sodium oxide.

8. The method for preparing the full-body landscape brick with flashing effect according to claim 7, characterized in that: The preparation method of the glaze slurry is to weigh the following components by mass: 100 parts of raw glaze powder, 0.10-0.15 parts of methyl cellulose, 0.30-0.40 parts of sodium tripolyphosphate, and 30-40 parts of water, and then add them into a ball mill for grinding, and the fineness is set to a 325-mesh sieve, and the sieve residue is 0.4-0.6%.

9. The method for preparing the full-body landscape brick with flashing effect according to claim 1, characterized in that: The press in step (3) uses a mold with a concave-convex structure, so that the surface of the blank obtained by stamping has a concave-convex effect.

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