CN111559908B - Preparation method of five-color stone ceramic tile and five-color stone ceramic tile - Google Patents

Preparation method of five-color stone ceramic tile and five-color stone ceramic tile Download PDF

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CN111559908B
CN111559908B CN202010448403.8A CN202010448403A CN111559908B CN 111559908 B CN111559908 B CN 111559908B CN 202010448403 A CN202010448403 A CN 202010448403A CN 111559908 B CN111559908 B CN 111559908B
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powder
decorative
layer
fabric
ceramic tile
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CN111559908A (en
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母军
梁广波
吕鹏
隆振海
魏麟凯
张剑锋
陈磊
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Enping Xinjincheng Ceramics Co ltd
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Enping Xinjincheng Ceramics Co ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/001—Applying decorations on shaped articles, e.g. by painting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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Abstract

The invention discloses a preparation method of a five-color stone ceramic tile, which comprises the following steps: preparing bottom material powder and surface material powder; mixing the fabric powder with different pigments to obtain decorative powder; distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer; distributing the backing material powder on the fabric layer to form a backing material layer; then pressing to obtain a green body; drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body; firing to obtain a five-color stone ceramic tile finished product; wherein, the decorative pattern of the five-color stone ceramic tile is composed of a fabric layer pattern and a decorative layer pattern; al in fabric powder 2 O 3 15-19 wt% of Al in the bottom material powder 2 O 3 The content is 18 to 21 wt%. The invention also discloses a five-color stone ceramic tile. The preparation method of the invention can effectively reduce the ink consumption in the ink-jet printing process and reduce the cost.

Description

Preparation method of five-color stone ceramic tile and five-color stone ceramic tile
Technical Field
The invention relates to the technical field of ceramic tiles, in particular to a preparation method of a five-color stone ceramic tile and the five-color stone ceramic tile.
Background
The colored stone in nature is generally formed by volcanic eruption. In the forming process, the stones with various colors are melted and mixed, so that the surface of the stone is gorgeous, the stone is dense in material and low in water absorption. Generally, the surface of the colored stone is completely covered by various colors, and a white part is rarely formed.
When the production process of the ceramic tile is adopted to produce the natural-world colorful stone, the production process is generally used for producing the glazed tile or the polished tile. When the glazed brick is produced by adopting a glazed brick process, a technical scheme of decorating by adopting a white blank body (a blank body without decoration color) and a glazed layer (0.2-1 mm) is generally adopted. Specifically, the decorative pattern is printed on the surface of the blank by screen printing or ink jet printing, but the colorful stone needs to consume a large amount of ink, so that the production cost is high. When the polished brick is produced by adopting the polished brick process, the polished brick is generally produced by adopting a technical scheme of two layers of blanks. Specifically, when distributing, a layer of white blank (without decorative color blank) is distributed first, and then a color material layer is distributed on the white blank layer; the glaze is not applied after the pressing, and the drying and the sintering are directly carried out. However, since the colorful stone ceramic tile is colorful, a large amount of pigment needs to be added to the surface layer, which often causes the problems of the rise of the firing temperature and the unmatched problem of the pigment layer and the green body layer, and is easy to generate various defects; the fired pigment layer generally has a thickness of 3 to 5mm and a thickness of 8 to 15mm in the case of fabric. .
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of a five-color stone ceramic tile, which has low production cost and good decorative effect.
The invention also aims to solve the technical problem of providing a five-color stone ceramic tile.
In order to solve the problems, the invention provides a preparation method of a five-color stone ceramic tile, which comprises the following steps:
(1) preparing bottom material powder and surface material powder;
(2) mixing the fabric powder with different pigments to obtain at least two decorative powder;
(3) distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer, wherein the fabric layer is provided with fabric layer patterns;
(4) distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
(5) pressing the powder aggregate to obtain a green body;
(6) drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body, wherein the decorative layer is provided with a decorative layer pattern;
(7) firing the green body obtained in the step (6) to obtain a finished product of the five-color stone ceramic tile;
the decorative pattern of the five-color stone ceramic tile is composed of a fabric layer pattern and a decorative layer pattern;
al in the fabric powder 2 O 3 The content of Al in the bottom material powder is 15-19 wt% 2 O 3 The content is 18 to 21 wt%.
As an improvement of the technical scheme, the step (5) comprises the following steps:
(5.1) pressing the powder aggregate to obtain a green body;
(5.2) laser coding the side surface of the green body to form a mark; the marks correspond to the patterns of the fabric layer one by one;
the step (6) comprises the following steps:
(6.1) drying the green body;
(6.2) reading the mark, and carrying out ink-jet printing on a decorative layer pattern on the surface of the green body according to the fabric layer pattern corresponding to the mark; the decorative layer pattern is the same as the fabric layer pattern.
As an improvement of the technical scheme, the backing material powder comprises the following chemical components in percentage by weight:
SiO 2 67～70％，Al 2 O 3 18～21％，Fe 2 O 3 1.1～1.4％，TiO 2 0.2～0.25％，CaO 0.5～0.8％，MgO 0.7～0.8％，K 2 O 3.0～4.0％，Na 2 O 2.0～3.0％，LOI 4～4.5％。
as an improvement of the technical scheme, the backing material powder comprises the following chemical components in percentage by weight:
SiO 2 67～68％，Al 2 O 3 19～21％，Fe 2 O 3 1.1～1.4％，TiO 2 0.2～0.25％，CaO 0.5～0.8％，MgO 0.7～0.8％，K 2 O 3.0～3.5％，Na 2 O 2.0～3.0％，LOI 4～4.5％。
as an improvement of the technical scheme, the fabric powder comprises the following chemical components in percentage by weight:
SiO 2 68～72％，Al 2 O 3 15～19％，Fe 2 O 3 0.3～0.5％，TiO 2 0.1～0.2％，CaO 0.4～0.5％，MgO 1～1.5％，K 2 O 2.0～3.0％，Na 2 O 2.0～4.0％，LOI 3.5～4.0％。
as an improvement of the technical scheme, the fabric powder comprises the following chemical components in percentage by weight:
SiO 2 70～72％，Al 2 O 3 15～17％，Fe 2 O 3 0.3～0.5％，TiO 2 0.1～0.2％，CaO 0.4～0.5％，MgO 1～1.5％，K 2 O 2.0～3.0％，Na 2 O 3.0～4.0％，LOI 3.5～4.0％。
as an improvement of the technical scheme, the thickness of the fabric layer is 2-5 mm, and the thickness of the fabric layer after being laminated is 0.5-2 mm.
As an improvement of the technical scheme, the thickness of the primer layer is 6-25 mm, and the thickness after pressing is 8-12 mm.
Correspondingly, the invention also discloses a five-color stone ceramic tile which is prepared by adopting the preparation method.
The implementation of the invention has the following beneficial effects:
1. the invention adopts a technical route of secondary material distribution and printing to produce the five-color stone ceramic tile, wherein a fabric layer forms a fabric layer pattern in the secondary material distribution process; the decorative layer is formed in the printing process to form a decorative layer pattern, and the fabric layer pattern is the same as the decorative layer pattern. The patterns of the fabric layer and the patterns of the decorative layer are mutually overlapped and set off to form decorative patterns together; the consumption of the ink in the ink-jet printing process is greatly reduced, and the consumption of the ink-jet printing ink in the invention is 15-30% of the traditional consumption.
2. After the green body is formed, the laser mark is formed on the side surface of the green body, and then before the green body enters the ink-jet printer, the code reading equipment scans and reads the mark code on the side surface, and then the ink-jet printer is controlled to print the pattern which is the same as the pattern of the fabric layer. By adopting the method, the linkage of the ink-jet printer and the multi-channel material distributor is effectively realized, the decorative effect of the five-color stone ceramic tile is improved, and the ink consumption of ink-jet printing is also saved.
3. According to the invention, a surface material layer is added in the traditional five-color stone ceramic tile blank, and the aluminum content in the surface material layer is reduced by 3-5% compared with that in the blank, so that the expansion coefficients of the surface material layer and the decorative layer (glaze) are more matched; meanwhile, the firing temperature of the product can be effectively reduced by about 5-10 ℃.
4. The five-color stone ceramic tile has the advantages that under the irradiation of common light or lamplight, the fabric layer decorative patterns and the decorative layer patterns are compounded, the color is bright during the irradiation of the light, the decorative effect is strong, and the five-color stone ceramic tile can be widely applied to furniture space decoration. The invention can replace rare stone, has low cost, only has 1/10 stone price, and can recycle products.
Drawings
FIG. 1 is a flow chart of a method for preparing a five-color stone ceramic tile of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below.
The surface of the colorful stone ceramic tile is colorful, the traditional process is adopted to produce and consume a large amount of printing ink, and the quality is difficult to control. Therefore, the invention provides a preparation method of a five-color stone ceramic tile, which comprises the following steps with reference to fig. 1:
s1: preparing bottom material powder and surface material powder;
specifically, the preparation process of the powder comprises the steps of mixing various raw materials, adding water, ball-milling to obtain slurry, and then spray-drying the slurry to obtain the powder;
specifically, the chemical components of the backing powder and the fabric powder are different, wherein Al in the fabric powder is 2 O 3 The content of Al in the bottom material powder is 15-19 wt% 2 O 3 The content is 18 to 21 wt%. The expansion coefficients of the fabric and the glaze are matched, so that the firing process is easy to control.
More specifically, the backing material powder comprises the following chemical components in percentage by weight: SiO 2 2 67～70％，Al 2 O 3 18～21％，Fe 2 O 3 1.1～1.4％，TiO 2 0.2～0.25％，CaO 0.5～0.8％，MgO 0.7～0.8％，K 2 O 3.0～4.0％，Na 2 O 2.0～3.0％，LOI 4～4.5％。
Preferably, the base material powder comprises the following chemical components in percentage by weight:
SiO 2 67～68％，Al 2 O 3 19～21％，Fe 2 O 3 1.1～1.4％，TiO 2 0.2～0.25％，CaO 0.5～0.8％，MgO 0.7～0.8％，K 2 O 3.0～3.5％，Na 2 O 2.0～3.0％，LOI 4～4.5％。
more specifically, the fabric powder comprises the following chemical components in percentage by weight:
SiO 2 68～72％，Al 2 O 3 15～19％，Fe 2 O 3 0.3～0.5％，TiO 2 0.1～0.2％，CaO 0.4～0.5％，MgO 1～1.5％，K 2 O 2.0～3.0％，Na 2 O 2.0～4.0％，LOI 3.5～4.0％。
preferably, the fabric powder comprises the following chemical components in percentage by weight:
SiO 2 70～72％，Al 2 O 3 15～17％，Fe 2 O 3 0.3～0.5％，TiO 2 0.1～0.2％，CaO 0.4～0.5％，MgO 1～1.5％，K 2 O 2.0～3.0％，Na 2 O 3.0～4.0％，LOI 3.5～4.0％。
wherein, the grain composition of the bottom material powder and the plus material powder is the same or different. Preferably, the grain composition of the backing powder is different from that of the facing powder.
Specifically, in the backing material powder, the proportion of particles smaller than 100 meshes is less than or equal to 1 wt%, and the proportion of particles larger than 40 meshes is more than or equal to 40 wt%;
specifically, in the fabric powder, the proportion of particles smaller than 100 meshes is less than or equal to 2 wt%, and the proportion of particles larger than 40 meshes is 20-40 wt%. The fabric powder has high flowability, and the thickness of the fabric layer can be effectively reduced.
S2: mixing the fabric powder with a pigment to obtain at least two decorative powder;
specifically, mixing the fabric powder with different pigments to obtain various decorative powder; the pigment can be ZnO or Fe 2 O 3 、TiO 2 And the like, but are not limited thereto.
Specifically, the content of the coloring material in the decorative powder material is 0.5 to 5 wt%, preferably 3 to 5 wt%. It should be noted that, in the conventional polished tile/inkjet bleeding polished tile, the pigment content of the surface layer is less than or equal to 1 wt%.
Specifically, a roller mixer is adopted to mix the color material and the fabric powder so as to prevent the grain composition of the fabric powder from being damaged. The roller mixer may be selected from, but not limited to, the mixer of the easy color system manufactured by LB corporation.
S3: distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer;
specifically, the decorative powder materials with different colors are respectively placed in different hoppers, and are distributed to a carrying belt through multi-channel discharging. In the blanking process, patterns of the fabric layer are formed by controlling the blanking amount, the blanking position and the like of different decorative powder. It should be noted that, because the colors of the whole five-color stone are quite rich, the boundaries between different colors are not very obvious and the five-color stone is lucrative. Therefore, the fabric layer pattern formed by the cloth can be well matched with the decorative layer pattern formed by the later-stage ink-jet printer.
Specifically, a 6-8 channel material distributor is adopted to distribute decorative powder to form a fabric layer. After the cloth is distributed, the thickness of the fabric layer is 2-5 mm; when the thickness of the fabric is more than 5mm, the pigment in the fabric layer is too much, so that the brick shape is difficult to control, uneven glaze surface is easy to appear, and the decorative effect is influenced. When the thickness of the fabric is less than 2mm, the fabric is easy to puncture, and the color development of the fabric pattern is weak, so that the fabric pattern is difficult to match with the pattern of the decorative layer at a later stage.
It should be noted that, the traditional secondary material distribution process is generally applied to polished tiles, namely, a base material layer is firstly distributed, and then a fabric layer is distributed, wherein the thickness of the fabric layer is generally controlled to be 8-15 mm; when the binder layer contains a large amount of the coloring material, the firing temperature is likely to rise, and the problem of mismatching between the binder layer and the green body layer is likely to occur. Another conventional production process is to apply a secondary distribution process to inkjet tile, which is also essentially polished tile. When the ink-jet flower-penetrating brick is used for secondary cloth fabric, in consideration of the color development effect of flower penetration, the surface layer powder is generally crushed and distributed in the form of micro powder (the residue of a 100-mesh sieve is less than 20 wt%), and the thickness of the cloth is usually controlled to be 5-10 mm due to poor flowability of the micro powder and in order to prevent the bottom layer powder from puncturing the surface layer powder in the pressing process. On one hand, the invention has larger powder particles and strong fluidity and can effectively reduce the thickness of the fabric layer; on the other hand, the function of the fabric layer pattern in the invention is that the fabric layer pattern is matched with the decorative layer pattern, the ink-jet printed pattern does not penetrate, the action mechanism is different, and the thickness is different.
S4: distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
specifically, the backing material powder is fed onto the backing material layer to form a backing material layer; then transported into a die cavity to form a powder aggregate. Specifically, the thickness of the primer layer is 6-25 mm, and preferably 12-25 mm.
Specifically, the multichannel material distributor may be a telote material distribution system of the bodhi technologies ltd, buddha, or a secondary material distribution system or an omnidirectional material distribution system of the bohli technologies ltd, guangdong, bohli, or the like, but is not limited thereto.
S5: pressing the powder aggregate to obtain a green body;
specifically, S5 includes:
s51: pressing the powder aggregate to obtain a green body;
in the pressing process, the pressing pressure is 30-50 MPa.
Specifically, after pressing, the thickness of the fabric layer is 0.5-2 mm, and the thickness of the primer layer is 8-12 mm.
S52: laser coding is carried out on the side face of the green body to form a mark;
specifically, different marks are formed according to different patterns of the fabric layer; the marks correspond to the patterns of the fabric layer one by one. Each fabric layer pattern corresponds to one mark; the different facestock layer patterns are marked differently.
S6: drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body;
specifically, S6 includes:
s61: drying the green body;
specifically, the green body is dried through a drying kiln, and the highest temperature of the drying kiln is 180-300 ℃.
S62: spraying a ground coat on the green body to form a ground coat layer;
s63: and reading the mark, and performing ink-jet printing on the decorative layer pattern on the surface of the green body according to the pattern of the fabric layer.
Specifically, before ink jet printing, the mark is read, and a decorative layer is ink jet printed on the surface of the ground coat layer according to the fabric layer pattern corresponding to the mark, wherein a decorative layer pattern is arranged in the decorative layer, and the decorative layer pattern is the same as the fabric layer pattern. The same decorative layer pattern and the same precoat layer pattern mean that the degree of overlap between the decorative layer pattern and the precoat layer pattern is 80% or more.
In particular, the indicia are read by an identification device, which may optionally be a photosensor, such as but not limited to a loose FP-X series photosensor.
After the identification device reads the mark, the mark is converted into an electric signal, and then an ink-jet printer is controlled to print a decorative layer pattern on the surface of the green body, wherein the decorative layer pattern is the same as the pattern of the fabric layer. The decorative patterns of the five-color stone ceramic tile are formed together by overlapping and supporting the decorative layer patterns and the fabric layer patterns. The consumption of the ink in the ink-jet printing process is greatly reduced, and the consumption of the ink-jet printing ink in the invention is 15-30% of the traditional consumption.
S64: and (5) spraying surface glaze on the decorative layer.
S7: firing the green body to obtain a finished product of the five-color stone ceramic tile;
the present invention is illustrated by the following specific examples.
Example 1
The embodiment provides a preparation method of a five-color stone ceramic tile, which comprises the following steps:
(1) preparing bottom material powder and surface material powder;
wherein, the bed charge powder comprises the following chemical components:
SiO 2 69.2％，Al 2 O 3 18.4％，Fe 2 O 3 1.3％，TiO 2 0.2％，CaO 0.5％，MgO 0.7％，K 2 O 3.2％，Na 2 O 2.3％，LOI 4.2％。
the fabric powder comprises the following chemical components:
SiO 2 69.6％，Al 2 O 3 17.9％，Fe 2 O 3 0.4％，TiO 2 0.2％，CaO 0.5％，MgO 1.4％，K 2 O 2.8％，Na 2 O 3.4％，LOI 3.8％。
(2) mixing the fabric powder with three pigments respectively to obtain three decorative powder;
(3) distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer;
specifically, after the cloth is distributed, the thickness of the fabric layer is 2.5 mm;
(4) distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
specifically, after the cloth is distributed, the thickness of the primer layer is 10 mm;
(5) pressing the powder aggregate to obtain a green body;
wherein the pressing pressure is 30 MPa;
after pressing, the thickness of the fabric layer is 2 mm; the thickness of the backing layer is 8 mm;
(6) drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body;
(7) firing the green body obtained in the step (6) to obtain a finished product of the five-color stone ceramic tile;
wherein the sintering temperature is 1165 ℃.
Example 2
The embodiment provides a preparation method of a five-color stone ceramic tile, which comprises the following steps:
(1) preparing bottom material powder and surface material powder;
wherein, the bed charge powder comprises the following chemical components:
SiO 2 67.5％，Al 2 O 3 20.1％，Fe 2 O 3 1.2％，TiO 2 0.2％，CaO 0.5％，MgO 0.7％，K 2 O 3.25％，Na 2 O 2.45％，LOI 4.1％。
the fabric powder comprises the following chemical components:
SiO 2 71.5％，Al 2 O 3 16.3％，Fe 2 O 3 0.3％，TiO 2 0.1％，CaO 0.5％，MgO 1.2％，K 2 O 2.4％，Na 2 O 3.8％，LOI 3.9％。
(2) respectively mixing the fabric powder with five pigments to obtain five decorative powder;
(3) distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer;
specifically, after the cloth is distributed, the thickness of the fabric layer is 3 mm;
(4) distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
specifically, after the cloth is distributed, the thickness of the bottom material layer is 20 mm;
(5) pressing the powder aggregate to obtain a green body;
wherein the pressing pressure is 42 MPa; after pressing, the thickness of the surface material layer is 1.5mm, and the thickness of the bottom material layer is 10 mm;
specifically, after pressing, marking on the side surface of the green body by adopting laser to form a mark;
(6) drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body;
specifically, after drying the green body, applying a base coat, reading the mark, controlling an ink-jet printer to print an ink-jet printing decorative layer with the same pattern as the fabric layer, and then applying a cover coat;
(7) firing the green body obtained in the step (6) to obtain a finished product of the five-color stone ceramic tile;
wherein the firing temperature is 1160 ℃.
Example 3
The embodiment provides a preparation method of a five-color stone ceramic tile, which comprises the following steps:
(1) preparing bottom material powder and surface material powder;
wherein, the bed charge powder comprises the following chemical components:
SiO 2 67.3％，Al 2 O 3 19.6％，Fe 2 O 3 1.2％，TiO 2 0.2％，CaO 0.7％，MgO 0.8％，K 2 O 3.3％，Na 2 O 2.5％，LOI 4.4％。
the fabric powder comprises the following chemical components:
SiO 2 71.8％，Al 2 O 3 15.6％，Fe 2 O 3 0.4％，TiO 2 0.1％，CaO 0.4％，MgO 1.4％，K 2 O 2.7％，Na 2 O 3.7％，LOI 3.9％。
(2) respectively mixing the fabric powder with eight pigments to obtain eight decorative powder;
(3) distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer;
specifically, after the cloth is distributed, the thickness of the fabric layer is 3.2 mm;
(4) distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
specifically, after the cloth is distributed, the thickness of the bottom material layer is 18 mm;
(5) pressing the powder aggregate to obtain a green body;
wherein the pressing pressure is 38 MPa; after pressing, the thickness of the fabric layer is 10mm, and the thickness of the primer layer is 1.8 mm;
specifically, after pressing, marking on the side surface of the green body by adopting laser to form a mark;
(6) drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body;
specifically, after drying the green body, applying a base coat, reading the mark, controlling an ink-jet printer to print an ink-jet printing decorative layer with the same pattern as the fabric layer, and then applying a cover coat;
wherein the firing temperature is 1155 ℃.
Comparative example 1
The comparative example provides a ceramic tile, the method of manufacture comprising:
(1) preparing backing material powder;
wherein, the chemical components of the backing powder are the same as those of the example 2;
(2) mixing the backing material powder with five pigments respectively to obtain five decorative powder materials;
(3) distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer;
specifically, after the cloth is distributed, the thickness of the fabric layer is 3 mm;
(4) distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
specifically, after the cloth is distributed, the thickness of the bottom material layer is 20 mm;
(5) pressing the powder aggregate to obtain a green body;
wherein the pressing pressure is 42 MPa;
specifically, after pressing, marking on the side surface of the green body by adopting laser to form a mark;
(6) drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body;
specifically, after drying the green body, applying a base coat, reading the mark, controlling an ink-jet printer to print an ink-jet printing decorative layer with the same pattern as the fabric layer, and then applying a cover coat;
(7) firing the green body obtained in the step (6) to obtain a finished product of the five-color stone ceramic tile;
wherein the firing temperature is 1160 ℃.
Comparative example 2
The comparative example provides a ceramic tile, the preparation method of which is substantially the same as that of example 2, except that the cloth thickness of the precoat layer is 6mm, and the cloth thickness of the primer layer is 15 mm.
Comparative example 3
This comparative example provides a ceramic tile, which was prepared in the same manner as in example 2, except for the chemical composition of the facing powder and the backing powder. The concrete steps are as follows:
the bottom material powder comprises the following chemical components:
SiO 2 65.4％，Al 2 O 3 20.8％，Fe 2 O 3 0.6％，TiO 2 0.5％，CaO 1.4％，MgO 0.6％，K 2 O 4.7％，Na 2 O 2.6％，LOI 3.4％。
the fabric powder comprises the following chemical components:
SiO 2 72.5％，Al 2 O 3 14.4％，Fe 2 O 3 0.2％，TiO 2 0.1％，CaO 1.1％，MgO 0.5％，K 2 O 4.6％，Na 2 O 2％，LOI 4.6％。
the results of the tests of examples 1-3 and comparative examples 1-3 were obtained according to the method of GB/T3810-2016 (wherein the specification of the low-aluminum high-silicon high-strength non-deforming glazed tile is 800X 800 mm) 2 )：
Figure BDA0002506786640000101
As can be seen from the table, the five-color stone ceramic tile has good color development effect, smooth glaze surface and no pinholes. As can be seen from the comparison between the comparative example 1 and the example 2, after the surface layer and the bottom layer adopt the same powder, the glaze can obviously not be burnt, the water absorption rate is high, the modulus of rupture is low, and the color development effect of the glaze surface is poor; as can be seen from the comparison between the comparative example 2 and the example 2, after the thickness of the cloth is changed, the brick shape is warped after being fired, and the glaze surface is easy to have pinhole defects; as can be seen from the comparison between the comparative example 3 and the example 3, when the primer powder and the facing powder are changed, the decorative effect of the ceramic tile is changed, and the glaze surface flatness is reduced.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (5)

1. A preparation method of a five-color stone ceramic tile is characterized by comprising the following steps:
(1) preparing bottom material powder and surface material powder;
the base material powder comprises the following chemical components in percentage by weight:
SiO 2 67～70％，Al 2 O 3 18～21％，Fe 2 O 3 1.1～1.4％，TiO 2 0.2～0.25％，CaO0.5～0.8％，MgO 0.7～0.8％，K 2 O 3.0～4.0％，Na 2 O 2.0～3.0％，LOI 4～4.5％；
the fabric powder comprises the following chemical components in percentage by weight:
SiO 2 68～72％，Al 2 O 3 15～19％，Fe 2 O 3 0.3～0.5％，TiO 2 0.1～0.2％，CaO0.4～0.5％，MgO 1～1.5％，K 2 O 2.0～3.0％，Na 2 O 2.0～4.0％，LOI 3.5～4.0％；
(2) mixing the fabric powder with different pigments to obtain at least two decorative powder; in the decorative powder, the content of the pigment is 3-5 wt%;
(3) distributing the decorative powder by adopting a multi-channel distributing machine to form a fabric layer, wherein the fabric layer is provided with fabric layer patterns; the thickness of the fabric layer is 2-5 mm, and the thickness of the fabric layer after being laminated is 0.5-2 mm;
(4) distributing the backing material powder on the fabric layer by adopting a multi-channel distributing machine to form a backing material layer and obtain a powder aggregate;
(5) pressing the powder aggregate to obtain a green body;
(6) drying the green body, and carrying out ink-jet printing on a decorative layer on the surface of the green body, wherein the decorative layer is provided with a decorative layer pattern;
(7) firing the green body obtained in the step (6) to obtain a finished product of the five-color stone ceramic tile;
the decorative pattern of the five-color stone ceramic tile is composed of a fabric layer pattern and a decorative layer pattern;
the step (5) comprises the following steps:
(5.1) pressing the powder aggregate to obtain a green body;
(5.2) laser coding the side surface of the green body to form a mark; the marks correspond to the patterns of the fabric layer one by one;
the step (6) comprises the following steps:
(6.1) drying the green body;
(6.2) reading the mark, and carrying out ink-jet printing on a decorative layer pattern on the surface of the green body according to the fabric layer pattern corresponding to the mark; the decorative layer pattern is the same as the fabric layer pattern.
2. The method for preparing the multicolored stone ceramic tile as claimed in claim 1, wherein the primer powder comprises the following chemical components in percentage by weight:
SiO 2 67～68％，Al 2 O 3 19～21％，Fe 2 O 3 1.1～1.4％，TiO 2 0.2～0.25％，CaO0.5～0.8％，MgO 0.7～0.8％，K 2 O 3.0～3.5％，Na 2 O 2.0～3.0％，LOI 4～4.5％。
3. the preparation method of the five-color stone ceramic tile as claimed in claim 1, wherein the fabric powder comprises the following chemical components in percentage by weight:
SiO 2 70～72％，Al 2 O 3 15～17％，Fe 2 O 3 0.3～0.5％，TiO 2 0.1～0.2％，CaO0.4～0.5％，MgO 1～1.5％，K 2 O 2.0～3.0％，Na 2 O 3.0～4.0％，LOI 3.5～4.0％。
4. the method for preparing the multicolored stone ceramic tile as claimed in claim 1, wherein the thickness of the primer layer is 6-25 mm, and the thickness after pressing is 8-12 mm.
5. A multicoloured stone ceramic tile produced by the method of any one of claims 1 to 4.
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