A through-body polished glaze stone brick and a preparation process thereof

Abstract

The present application relates to the technical field of hole stone brick, and particularly relates to a hole stone brick with a whole-body polished glaze and a preparation process thereof. The preparation process of the hole stone brick with a whole-body polished glaze comprises the following steps: step A, a plurality of convex blocks are dispersedly arranged in a mold, and the plurality of convex blocks are arranged to form at least one hole texture pattern; and step B, colored body powder is distributed in the mold, and is pressed to form a body with the hole texture pattern distributed on the surface. The preparation process of the hole stone brick with a whole-body polished glaze can prepare the hole stone brick with a whole-body effect, and the surface is formed with a three-dimensional hole texture pattern, so that the hole stone brick not only has the effect of a natural whole-body hole stone structure, but also has a rich surface three-dimensional texture decoration effect, the decoration effect is rich, and the problems of the hole stone brick prepared by pressing the hole stone brick through a mold, such as the inconsistent glaze color and body color, the inability to achieve a whole-body effect, the inability to form a surface three-dimensional texture decoration effect and poor decoration effect, are solved.

Description

Technical Field

[0001] This invention relates to the field of travertine brick technology, and in particular to a fully glazed travertine brick and its preparation process. Background Technology

[0002] With the improvement of living standards, ceramic tiles with personalized decorative effects are sought after by consumers. Natural travertine has clear, well-spaced, and harmonious textures and pores, possessing unique patterns and porous structures, thus exhibiting excellent decorative properties. However, natural travertine is soft, has low hardness, and is easily broken and cracked. To reproduce the texture effect of natural travertine while meeting the requirements of seismic performance and service life for curtain wall decoration, a method of producing travertine tiles by molding has emerged. By placing powder into a mold with protrusions, the mold can reproduce the natural pores of varying depths. After molding, a body with multiple concave holes on the surface is obtained. After applying a glaze and firing, travertine tiles are produced. However, the color of the glaze on these travertine tiles is inconsistent with the color of the body, failing to achieve a uniform effect. Furthermore, the surface only has multiple concave holes, failing to create a three-dimensional textured decorative effect, resulting in poor decorative effect. Summary of the Invention

[0003] In response to the problems raised in the background technology, the purpose of this invention is to propose a preparation process for through-body glazed travertine bricks, which can produce travertine bricks with a through-body effect and a three-dimensional porous texture pattern on the surface. It not only has the effect of a natural through-body travertine structure, but also has a rich three-dimensional surface texture decoration effect, resulting in a rich decorative effect. This solves the problems of existing travertine bricks made by pressing travertine bricks with molds, such as inconsistent glaze color with body color, inability to achieve a through-body effect, inability to form a three-dimensional surface texture decoration effect, and poor decorative effect.

[0004] Another objective of this invention is to provide a fully glazed travertine brick prepared using the above-mentioned process, which not only has the effect of a natural fully glazed travertine structure, but also has a rich surface three-dimensional texture decoration effect, resulting in a rich decorative effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A process for preparing a fully glazed travertine brick includes the following steps:

[0007] Step A: Distribute multiple bumps in the mold, and arrange the multiple bumps to form at least one hole texture pattern;

[0008] Step B: Place the colored blank powder into the mold, press it into shape, and obtain a blank with a porous texture pattern on the surface.

[0009] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer. The raw materials of the surface glaze include colorants.

[0010] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer;

[0011] Step E: After firing in a kiln, polish the surface. After firing, the color of the glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0012] To further explain, the raw materials of the colored body powder, calculated by mass, include 30-35 parts of potassium-sodium feldspar, 13-16 parts of medium-temperature potassium sand, 2.5-5 parts of bentonite, 4-6 parts of siliceous limestone, 4-6 parts of talc, 20-25 parts of kaolin, 4-5 parts of raw ore mud, 8-12 parts of porcelain clay, 2-4 parts of bauxite, and 0.5-2.5 parts of colorant;

[0013] According to the mass fractions, the raw materials of the glaze include 20-33 parts of sodium feldspar, 15-25 parts of potassium feldspar, 8-15 parts of quartz, 10-15 parts of calcined clay, 2-5 parts of dolomite, 5-9 parts of washed clay, 8-12 parts of alumina, 6-12 parts of zirconium silicate, 2-3 parts of talc, and 0.5-3 parts of colorant.

[0014] The colorant in the raw material of the colored body powder is the same as the colorant in the raw material of the surface glaze.

[0015] To further clarify, the raw materials of the glaze, calculated by weight, also include 3 to 5 parts of zinc oxide.

[0016] To further clarify, the colorant in the raw material of the colored body powder and the colorant in the raw material of the surface glaze are any one of praseodymium yellow, vanadium zirconium blue, and zirconium iron red, respectively.

[0017] Furthermore, the colored preform powder contains a pore-forming agent, and the amount of the pore-forming agent added is 0.5-3% of the total mass of the colored preform powder. The pore-forming agent is carbamide powder or paraffin powder.

[0018] Step B involves placing the colored green body powder into a mold, pressing it into shape, and then drying the green body in a kiln at a temperature of 260–320°C for 40–80 minutes.

[0019] To further explain, the dry granule glaze includes dry granule slurry and transparent glaze, and the mass ratio of the dry granule slurry to the transparent glaze is (40-50):(50-60). The dry granule slurry includes dry granules and a suspending agent, and the mass ratio of the dry granules to the suspending agent is (50-55):(45-50).

[0020] To further explain, in step D, the height of the horizontal plane where the upper surface of the dry granule decorative layer is located is lower than the height of the horizontal plane where the upper surface of the blank is located;

[0021] Alternatively, the height of the horizontal plane containing the upper surface of the dry granule decorative layer is equal to the height of the horizontal plane containing the upper surface of the blank.

[0022] To further explain, in step B, the pressing pressure is 45000-55000KN.

[0023] To further explain, in step E, the firing temperature is 1050–1180°C and the firing time is 55–65 min.

[0024] A fully polished glazed travertine tile is prepared using the aforementioned fully polished glazed travertine tile preparation process. It includes a body layer, a surface glaze layer, and a dry granule decorative layer. The body layer has multiple external concave holes distributed on the upper surface of the body layer. The multiple external concave holes are arranged to form at least one hole texture pattern.

[0025] The upper surface of the blank layer is provided with the glaze layer, and the upper surface of the glaze layer is provided with the dry granule decorative layer corresponding to the external concave hole.

[0026] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0027] The above-mentioned process for preparing travertine bricks with a full-body glazed finish can produce travertine bricks with a full-body effect and a three-dimensional porous texture pattern on the surface. It not only has the effect of a natural full-body travertine structure, but also has a rich three-dimensional texture decoration effect. The rich decorative effect solves the problems of inconsistent glaze color and body color, inability to achieve a full-body effect, inability to form a three-dimensional texture decoration effect, and poor decorative effect of existing travertine bricks made by pressing travertine bricks with molds. Attached Figure Description

[0028] Figure 1 This is a structural diagram of a fully glazed perforated stone brick according to an embodiment of the present invention;

[0029] Figure 2 This is a top view of the body layer of a fully glazed travertine brick according to an embodiment of the present invention (excluding the surface glaze layer and the dry granule decorative layer);

[0030] The components include: body layer 1, external concave hole 11, hole texture pattern 12, internal concave hole 13, surface glaze layer 2, and dry granule decorative layer 3. Detailed Implementation

[0031] A process for preparing a fully glazed travertine brick includes the following steps:

[0032] Step A: Distribute multiple bumps in the mold, and arrange the multiple bumps to form at least one hole texture pattern;

[0033] Step B: Place the colored blank powder into the mold, press it into shape, and obtain a blank with a porous texture pattern on the surface.

[0034] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer. The raw materials of the surface glaze include colorants.

[0035] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer;

[0036] Step E: After firing in a kiln, polish the surface. After firing, the color of the glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0037] A blank is prepared by using a mold. Since multiple protrusions are dispersed in the mold, the multiple protrusions are arranged to form at least one hole texture pattern. After the colored blank powder arranged around these protrusions is pressed and demolded, multiple external concave holes are formed on the surface of the blank. The multiple external concave holes are arranged to form at least one hole texture pattern. The hole texture pattern formed by the multiple external concave holes corresponds to the hole texture pattern formed by the multiple protrusions, thereby forming a travertine structure in the blank.

[0038] By applying a glaze to the surface of the ceramic body, a glaze layer is formed. The raw materials of the glaze include colorants, ensuring that the color of the glaze layer matches the color of the ceramic body after firing, achieving a uniform effect throughout and replicating the seamless appearance of natural travertine bricks. Furthermore, by printing dry-granule glaze onto the porous texture patterns on the surface of the ceramic body, a dry-granule decorative layer is formed. After firing, this dry-granule decorative layer enhances the texture and three-dimensionality of the porous texture patterns on the surface of the ceramic body. This results in a fully glazed travertine brick that not only possesses the natural structure of travertine but also boasts a rich three-dimensional decorative effect. Since the porous texture patterns are formed directly in the ceramic body using a mold, a three-dimensional texture effect can be directly created on the surface of the travertine brick, resulting in a rich decorative effect.

[0039] The aforementioned process for preparing travertine bricks with a full-body glazed finish can produce travertine bricks with a full-body effect and a three-dimensional porous texture pattern on the surface. It not only has the effect of a natural full-body travertine structure, but also has a rich three-dimensional surface texture decoration effect. The rich decorative effect solves the problems of inconsistent glaze color and body color, inability to achieve a full-body effect, inability to form a three-dimensional surface texture decoration effect, and poor decorative effect of existing travertine bricks made by pressing travertine bricks with molds.

[0040] To further explain, the raw materials of the colored body powder, calculated by mass, include 30-35 parts of potassium-sodium feldspar, 13-16 parts of medium-temperature potassium sand, 2.5-5 parts of bentonite, 4-6 parts of siliceous limestone, 4-6 parts of talc, 20-25 parts of kaolin, 4-5 parts of raw ore mud, 8-12 parts of porcelain clay, 2-4 parts of bauxite, and 0.5-2.5 parts of colorant;

[0041] According to the mass fractions, the raw materials of the glaze include 20-33 parts of sodium feldspar, 15-25 parts of potassium feldspar, 8-15 parts of quartz, 10-15 parts of calcined clay, 2-5 parts of dolomite, 5-9 parts of washed clay, 8-12 parts of alumina, 6-12 parts of zirconium silicate, 2-3 parts of talc, and 0.5-3 parts of colorant.

[0042] The colorant in the raw material of the colored body powder is the same as the colorant in the raw material of the surface glaze.

[0043] By adding colorants to the raw materials of the colored body powder and the raw materials of the glaze, the color of the glaze layer after firing is made consistent with the color of the body, so that the color of the glaze layer and the color of the body can be made uniform throughout.

[0044] Preferably, the raw materials of the glaze further include 3 to 5 parts of zinc oxide, calculated by weight.

[0045] By adding zinc oxide to the raw materials of the glaze, zinc oxide can help with color development, ensuring the color effect of the glaze layer after firing, resulting in a higher degree of color integration between the glaze layer and the body, and a better overall effect.

[0046] To further clarify, the colorant in the raw material of the colored body powder and the colorant in the raw material of the surface glaze are any one of praseodymium yellow, vanadium zirconium blue, and zirconium iron red, respectively.

[0047] By adding colorants to the raw materials of the colored body powder and the raw materials of the surface glaze, the color of the surface glaze layer can be made to be consistent with the color of the body. The colorants can be selected from praseodymium yellow, vanadium zirconium blue, or zirconium iron red, so that the overall yellow, blue, or red effect of the brick can be obtained to meet different usage requirements.

[0048] Preferably, the colored preform powder contains a pore-forming agent, and the amount of the pore-forming agent added is 0.5-3% of the total mass of the colored preform powder. The pore-forming agent is carbamide powder or paraffin powder.

[0049] Step B involves placing the colored green body powder into a mold, pressing it into shape, and then drying the green body in a kiln at a temperature of 260–320°C for 40–80 minutes.

[0050] By adding the pore-forming agent to the colored green body powder, pressing and molding, and then drying at high temperature (260-320°C) for 40-80 minutes, the pore-forming agent volatilizes and forms concave pores in the green body. Part of the concave pores formed by the pore-forming agent penetrates the green body and is exposed on the outside. Another part of the concave pores are connected to the convex pores formed by the protrusions of the mold. A third part of the concave pores are located inside the green body, so that the entire green body has a pore structure, which is closer to the structure of natural travertine bricks. The pore structure can be seen not only on the surface of the brick body, but also on the sides and inside of the brick body, resulting in a better overall effect.

[0051] To further explain, the dry granule glaze includes dry granule slurry and transparent glaze, and the mass ratio of the dry granule slurry to the transparent glaze is (40-50):(50-60). The dry granule slurry includes dry granules and a suspending agent, and the mass ratio of the dry granules to the suspending agent is (50-55):(45-50).

[0052] By printing the dry granule glaze on the surface of the blank where there is a porous texture pattern, the dry granule glaze forms a dry granule decorative layer on the surface of the blank where there is a porous texture pattern. After firing, the dry granule decorative layer can enhance the texture of the porous texture pattern on the surface of the blank and enhance the three-dimensionality of the porous texture pattern. This makes the through-body polished travertine tile not only have the effect of a natural through-body travertine structure, but also have a rich surface decoration effect, effectively improving the user experience.

[0053] Specifically, in step D, the height of the horizontal plane where the upper surface of the dry granule decorative layer is located is lower than the height of the horizontal plane where the upper surface of the blank is located;

[0054] Alternatively, the height of the horizontal plane containing the upper surface of the dry granule decorative layer is equal to the height of the horizontal plane containing the upper surface of the blank.

[0055] When printing dry granule glaze on the surface of the brick body where there is a perforated texture pattern, the amount of dry granule glaze printed can be controlled so that the height of the upper surface of the dry granule decorative layer is lower than or equal to the height of the upper surface of the brick body. When the height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the brick body, the three-dimensional effect of the perforated texture pattern on the brick surface is better, and the perforation texture effect is more prominent. When the height of the upper surface of the dry granule decorative layer is equal to the height of the upper surface of the brick body, the surface texture of the perforated texture pattern on the brick surface is better, which can meet different usage effect requirements.

[0056] Preferably, in step B, the pressing pressure is 45000-55000 KN.

[0057] The strength of the green body pressed under a pressure of 45,000 to 55,000 KN is not less than 40 MPa, so that the whole glazed travertine brick maintains a high flexural strength. Even the thin parts with concave holes are not prone to breakage, thus ensuring the performance.

[0058] Preferably, in step E, the firing temperature is 1050–1180°C and the firing time is 55–65 min.

[0059] The first firing is carried out at a temperature above 1000℃. High-temperature firing can improve the wear resistance of the surface glaze layer and ensure the performance of the whole polished glazed travertine brick. Preferably, the firing time is 60 minutes.

[0060] like Figure 1 and Figure 2 As shown, a full-body polished glazed travertine tile is prepared using the aforementioned full-body polished glazed travertine tile preparation process. It includes a body layer 1, a surface glaze layer 2, and a dry granule decorative layer 3. The body layer 1 is provided with a plurality of external concave holes 11, which are distributed on the upper surface of the body layer 1. The plurality of external concave holes 11 are arranged to form at least one hole texture pattern 12.

[0061] The upper surface of the blank layer 1 is provided with the glaze layer 2, and the upper surface of the glaze layer 2 is provided with the dry granule decorative layer 3 corresponding to the external concave hole 11.

[0062] The glazed travertine brick not only has the effect of a natural travertine structure, but also has a rich three-dimensional surface texture, resulting in a diverse decorative effect.

[0063] Preferably, the blank layer 1 is further provided with a plurality of concave holes 13. A portion of the concave holes 13 penetrate the blank layer 1 and are exposed outside the blank layer 1, another portion of the concave holes 13 are connected to the external concave holes 11, and a further portion of the concave holes 13 are located inside the blank layer 1. This results in a uniformly distributed porous structure throughout the blank layer 1, more closely resembling the structure of natural travertine bricks. The porous structure is visible not only on the surface of the brick but also on its sides and inside, resulting in a better overall appearance. It should be noted that "inner" refers to the direction towards the interior of the blank layer 1.

[0064] To facilitate understanding of the present invention, a more complete description is provided below. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

[0065] Where specific techniques or conditions are not specified in the examples, they shall be performed in accordance with the techniques or conditions described in the literature in this field or in accordance with the product instructions. Reagents or instruments whose manufacturers are not specified are all commercially available conventional products.

[0066] Example 1

[0067] A process for preparing a fully glazed travertine brick includes the following steps:

[0068] Step A: Distribute multiple protrusions in the mold, and arrange the multiple protrusions to form a four-hole texture pattern;

[0069] Step B: The colored blank powder is placed in the mold and pressed into shape. The pressing pressure is 50000KN to obtain a blank with a porous texture pattern on the surface.

[0070] According to the mass fraction, the raw materials of the colored body powder are composed of the following components: 32 parts of potassium sodium feldspar, 15 parts of medium-temperature potassium sand, 3 parts of bentonite, 5 parts of siliceous limestone, 5 parts of talc, 23 parts of kaolin, 5 parts of raw ore mud, 10 parts of porcelain clay, 3 parts of bauxite and 2 parts of colorant.

[0071] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer;

[0072] According to the mass fraction, the raw materials of the glaze are composed of the following components: 25 parts of sodium feldspar, 20 parts of potassium feldspar, 12 parts of quartz, 13 parts of calcined clay, 3 parts of dolomite, 7 parts of washed clay, 10 parts of alumina, 7 parts of zirconium silicate, 2 parts of talc, and 1.5 parts of colorant.

[0073] The colorant in the raw materials of the colored body powder and the colorant in the raw materials of the surface glaze are both praseodymium yellow.

[0074] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer. The height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the blank.

[0075] The dry granule glaze is composed of dry granule slurry and transparent glaze, with a mass ratio of 50:50 between the dry granule slurry and the transparent glaze. The dry granule slurry is composed of dry granules and a suspending agent, with a mass ratio of 55:45 between the dry granules and the suspending agent.

[0076] Step E: After firing in a kiln, polish the surface. The firing temperature is 1180℃ and the firing time is 60 minutes. After firing, the color of the surface glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0077] Example 2

[0078] A process for preparing a fully glazed travertine brick includes the following steps:

[0079] Step A: Distribute multiple protrusions in the mold, and arrange the multiple protrusions to form four hole texture patterns (the mold is the same as the mold in Example 1);

[0080] Step B: The colored blank powder is placed in the mold and pressed into shape. The pressing pressure is 50000KN to obtain a blank with a porous texture pattern on the surface.

[0081] According to the mass fractions, the raw materials of the colored body powder are composed of the following components: 30 parts of potassium sodium feldspar, 13 parts of medium-temperature potassium sand, 2.5 parts of bentonite, 4 parts of siliceous limestone, 4 parts of talc, 20 parts of kaolin, 4 parts of raw ore mud, 8 parts of porcelain clay, 2 parts of bauxite and 0.5 parts of colorant.

[0082] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer;

[0083] According to the mass fractions, the raw materials of the glaze are composed of the following components: 20 parts of sodium feldspar, 15 parts of potassium feldspar, 8 parts of quartz, 10 parts of calcined clay, 2 parts of dolomite, 5 parts of washed clay, 8 parts of alumina, 6 parts of zirconium silicate, 2 parts of talc, and 0.5 parts of colorant.

[0084] The colorant in the raw materials of the colored body powder and the colorant in the raw materials of the surface glaze are both praseodymium yellow.

[0085] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer. The height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the blank.

[0086] The dry granule glaze is composed of dry granule slurry and transparent glaze, with a mass ratio of 50:50 between the dry granule slurry and the transparent glaze. The dry granule slurry is composed of dry granules and a suspending agent, with a mass ratio of 55:45 between the dry granules and the suspending agent.

[0087] Step E: After firing in a kiln, polish the surface. The firing temperature is 1180℃ and the firing time is 60 minutes. After firing, the color of the surface glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0088] Example 3

[0089] A process for preparing a fully glazed travertine brick includes the following steps:

[0090] Step A: Distribute multiple protrusions in the mold, and arrange the multiple protrusions to form four hole texture patterns (the mold is the same as the mold in Example 1);

[0091] Step B: The colored blank powder is placed in the mold and pressed into shape. The pressing pressure is 50000KN to obtain a blank with a porous texture pattern on the surface.

[0092] According to the mass fraction, the raw materials of the colored body powder are composed of the following components: 35 parts of potassium sodium feldspar, 16 parts of medium-temperature potassium sand, 5 parts of bentonite, 6 parts of siliceous limestone, 6 parts of talc, 25 parts of kaolin, 5 parts of raw ore mud, 12 parts of porcelain clay, 4 parts of bauxite, and 2.5 parts of colorant.

[0093] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer;

[0094] According to the mass fraction, the raw materials of the glaze are composed of the following components: 33 parts of sodium feldspar, 25 parts of potassium feldspar, 15 parts of quartz, 15 parts of calcined clay, 5 parts of dolomite, 9 parts of washed clay, 12 parts of alumina, 12 parts of zirconium silicate, 3 parts of talc, and 3 parts of colorant.

[0095] The colorant in the raw materials of the colored body powder and the colorant in the raw materials of the surface glaze are both praseodymium yellow.

[0096] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer. The height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the blank.

[0097] The dry granule glaze is composed of dry granule slurry and transparent glaze, with a mass ratio of 50:50 between the dry granule slurry and the transparent glaze. The dry granule slurry is composed of dry granules and a suspending agent, with a mass ratio of 55:45 between the dry granules and the suspending agent.

[0098] Step E: After firing in a kiln, polish the surface. The firing temperature is 1180℃ and the firing time is 60 minutes. After firing, the color of the surface glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0099] Example 4

[0100] A process for preparing a fully glazed travertine brick includes the following steps:

[0101] Step A: Distribute multiple protrusions in the mold, and arrange the multiple protrusions to form a four-hole texture pattern;

[0102] Step B: The colored blank powder is placed in the mold and pressed into shape. The pressing pressure is 50000KN to obtain a blank with a porous texture pattern on the surface.

[0103] According to the mass fraction, the raw materials of the colored body powder are composed of the following components: 32 parts of potassium sodium feldspar, 15 parts of medium-temperature potassium sand, 3 parts of bentonite, 5 parts of siliceous limestone, 5 parts of talc, 23 parts of kaolin, 5 parts of raw ore mud, 10 parts of porcelain clay, 3 parts of bauxite and 2 parts of colorant.

[0104] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer;

[0105] According to the mass fractions, the raw materials of the glaze are composed of the following components: 25 parts of sodium feldspar, 20 parts of potassium feldspar, 12 parts of quartz, 13 parts of calcined clay, 3 parts of dolomite, 7 parts of washed clay, 10 parts of alumina, 7 parts of zirconium silicate, 2 parts of talc, 4 parts of zinc oxide, and 1.5 parts of colorant.

[0106] The colorant in the raw materials of the colored body powder and the colorant in the raw materials of the surface glaze are both praseodymium yellow.

[0107] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer. The height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the blank.

[0108] The dry granule glaze is composed of dry granule slurry and transparent glaze, with a mass ratio of 50:50 between the dry granule slurry and the transparent glaze. The dry granule slurry is composed of dry granules and a suspending agent, with a mass ratio of 55:45 between the dry granules and the suspending agent.

[0109] Step E: After firing in a kiln, polish the surface. The firing temperature is 1180℃ and the firing time is 60 minutes. After firing, the color of the surface glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0110] The glazed travertine bricks prepared by Examples 1 to 4 have a uniform yellow color throughout, and the surface of the bricks clearly shows the pore texture pattern. The surface texture of the areas with the pore texture pattern is good, the pore texture is clear, and the surface decoration effect is rich.

[0111] Example 5

[0112] A process for preparing a fully glazed travertine brick includes the following steps:

[0113] Step A: Distribute multiple protrusions in the mold, and arrange the multiple protrusions to form a hole texture pattern;

[0114] Step B: The colored green body powder is placed in the mold and pressed into shape. The pressing pressure is 50000KN. The green body is placed in the kiln for drying. The drying temperature is 280℃ and the drying time is 50min to obtain a green body with a porous texture pattern on the surface.

[0115] The raw materials of the colored body powder, calculated by mass fraction, consist of the following components: 32 parts potassium sodium feldspar, 15 parts medium-temperature potassium sand, 3 parts bentonite, 5 parts hygroscopicite, 5 parts talc, 23 parts kaolin, 5 parts raw ore mud, 10 parts porcelain clay, 3 parts bauxite, and 2 parts colorant; the colored body powder contains a pore-forming agent, the amount of which is 2% of the total mass of the colored body powder, and the pore-forming agent is carbamide powder;

[0116] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer;

[0117] According to the mass fraction, the raw materials of the glaze are composed of the following components: 25 parts of sodium feldspar, 20 parts of potassium feldspar, 12 parts of quartz, 13 parts of calcined clay, 3 parts of dolomite, 7 parts of washed clay, 10 parts of alumina, 7 parts of zirconium silicate, 2 parts of talc, and 1.5 parts of colorant.

[0118] The colorant in the raw materials of the colored body powder and the colorant in the raw materials of the surface glaze are both praseodymium yellow.

[0119] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer. The height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the blank.

[0120] The dry granule glaze is composed of dry granule slurry and transparent glaze, with a mass ratio of 50:50 between the dry granule slurry and the transparent glaze. The dry granule slurry is composed of dry granules and a suspending agent, with a mass ratio of 55:45 between the dry granules and the suspending agent.

[0121] Step E: After firing in a kiln, polish the surface. The firing temperature is 1180℃ and the firing time is 60 minutes. After firing, the color of the surface glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0122] The glazed travertine brick prepared in Example 5 has a uniform yellow color throughout. The surface of the brick clearly shows the perforated texture pattern, and the surface texture of the areas with the perforated texture pattern is good. The perforated texture pattern is clear and the surface decoration effect is rich. In addition to the perforated texture pattern on the surface, the entire body of the brick is distributed with perforated structure, so that when the glazed travertine brick is viewed from the side, the perforated structure can also be observed from the side, resulting in a better overall effect.

[0123] Example 6

[0124] A process for preparing a fully glazed travertine brick includes the following steps:

[0125] Step A: Distribute multiple protrusions in the mold, and arrange the multiple protrusions to form a hole texture pattern;

[0126] Step B: The colored blank powder is placed in the mold and pressed into shape. The pressing pressure is 50000KN to obtain a blank with a porous texture pattern on the surface.

[0127] According to the mass fraction, the raw materials of the colored body powder are composed of the following components: 32 parts of potassium sodium feldspar, 15 parts of medium-temperature potassium sand, 3 parts of bentonite, 5 parts of siliceous limestone, 5 parts of talc, 23 parts of kaolin, 5 parts of raw ore mud, 10 parts of porcelain clay, 3 parts of bauxite and 2 parts of colorant.

[0128] Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer;

[0129] According to the mass fraction, the raw materials of the glaze are composed of the following components: 25 parts of sodium feldspar, 20 parts of potassium feldspar, 12 parts of quartz, 13 parts of calcined clay, 3 parts of dolomite, 7 parts of washed clay, 10 parts of alumina, 7 parts of zirconium silicate, 2 parts of talc, and 1.5 parts of colorant.

[0130] The colorant in the raw materials of the colored body powder and the colorant in the raw materials of the surface glaze are both zirconium iron red pigment.

[0131] Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer. The height of the upper surface of the dry granule decorative layer is lower than the height of the upper surface of the blank.

[0132] The dry granule glaze is composed of dry granule slurry and transparent glaze, with a mass ratio of 50:50 between the dry granule slurry and the transparent glaze. The dry granule slurry is composed of dry granules and a suspending agent, with a mass ratio of 55:45 between the dry granules and the suspending agent.

[0133] Step E: After firing in a kiln, polish the surface. The firing temperature is 1180℃ and the firing time is 60 minutes. After firing, the color of the surface glaze layer is consistent with the color of the body, resulting in a fully polished glazed travertine brick.

[0134] The glazed travertine brick prepared in Example 6 has a uniform red color throughout, and the surface of the brick can clearly see the hole texture pattern. The surface texture of the areas with the hole texture pattern is good, the hole texture is clear, and the surface decoration effect is rich.

[0135] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A preparation process for a fully glazed travertine brick, characterized in that, Includes the following steps: Step A: Distribute multiple bumps in the mold, and arrange the multiple bumps to form at least one hole texture pattern; Step B: Place the colored blank powder into the mold, press it into shape, and obtain a blank with a porous texture pattern on the surface. Step C: Apply a surface glaze to the surface of the blank to form a surface glaze layer. The raw materials of the surface glaze include colorants. Step D: Print dry granule glaze on the surface of the blank where there is a porous texture pattern to form a dry granule decorative layer; Step E: After firing in the kiln, polish the surface. The color of the glaze layer after firing is consistent with the color of the body, resulting in a fully polished glazed travertine brick. Wherein, the colorant in the raw material of the colored body powder is the same as the colorant in the raw material of the surface glaze, and the colorant in the raw material of the colored body powder and the colorant in the raw material of the surface glaze are any one of praseodymium yellow, vanadium zirconium blue and zirconium iron red, respectively.

2. The preparation process of the fully glazed travertine brick according to claim 1, characterized in that, According to the mass fractions, the raw materials of the colored body powder include 30-35 parts of potassium sodium feldspar, 13-16 parts of medium-temperature potassium sand, 2.5-5 parts of bentonite, 4-6 parts of siliceous limestone, 4-6 parts of talc, 20-25 parts of kaolin, 4-5 parts of raw ore mud, 8-12 parts of porcelain clay, 2-4 parts of bauxite, and 0.5-2.5 parts of colorant; According to the mass fractions, the raw materials of the glaze include 20-33 parts of sodium feldspar, 15-25 parts of potassium feldspar, 8-15 parts of quartz, 10-15 parts of calcined clay, 2-5 parts of dolomite, 5-9 parts of washed clay, 8-12 parts of alumina, 6-12 parts of zirconium silicate, 2-3 parts of talc, and 0.5-3 parts of colorant.

3. The preparation process of the fully glazed travertine brick according to claim 2, characterized in that, The raw materials for the glaze, calculated by weight, also include 3 to 5 parts of zinc oxide.

4. The preparation process of the fully glazed travertine brick according to claim 2, characterized in that, The colored preform powder contains a pore-forming agent, and the amount of the pore-forming agent added is 0.5-3% of the total mass of the colored preform powder. The pore-forming agent is carbamide powder or paraffin powder. Step B involves placing the colored green body powder into a mold, pressing it into shape, and then drying the green body in a kiln at a temperature of 260–320°C for 40–80 minutes.

5. The preparation process of the fully glazed travertine brick according to claim 1, characterized in that, The dry granule glaze includes dry granule slurry and transparent glaze, and the mass ratio of the dry granule slurry to the transparent glaze is (40-50):(50-60). The dry granule slurry includes dry granules and a suspending agent, and the mass ratio of the dry granules to the suspending agent is (50-55):(45-50).

6. The preparation process of the fully glazed travertine brick according to claim 1, characterized in that, In step D, the height of the horizontal plane where the upper surface of the dry granule decorative layer is located is lower than the height of the horizontal plane where the upper surface of the blank is located. Alternatively, the height of the horizontal plane containing the upper surface of the dry granule decorative layer is equal to the height of the horizontal plane containing the upper surface of the blank.

7. The preparation process of the fully glazed travertine brick according to claim 1, characterized in that, In step B, the pressing pressure is 45000~55000KN.

8. The preparation process of the fully glazed travertine brick according to claim 1, characterized in that, In step E, the firing temperature is 1050–1180°C and the firing time is 55–65 min.

9. A type of fully glazed travertine brick, characterized in that, The brick is prepared using the preparation process of the through-body glazed travertine brick as described in any one of claims 1 to 8, comprising a body layer, a surface glaze layer and a dry granule decorative layer, wherein the body layer is provided with a plurality of external concave holes, the external concave holes are distributed on the upper surface of the body layer, and the plurality of external concave holes are arranged to form at least one hole texture pattern. The upper surface of the blank layer is provided with the glaze layer, and the upper surface of the glaze layer is provided with the dry granule decorative layer corresponding to the external concave hole.

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