CN110981196A - Porous thick polished glaze and travertine fully polished glazed porcelain tile and preparation method thereof - Google Patents

Porous thick polished glaze and travertine fully polished glazed porcelain tile and preparation method thereof Download PDF

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Publication number
CN110981196A
CN110981196A CN201911251903.6A CN201911251903A CN110981196A CN 110981196 A CN110981196 A CN 110981196A CN 201911251903 A CN201911251903 A CN 201911251903A CN 110981196 A CN110981196 A CN 110981196A
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China
Prior art keywords
glaze
polished
thick
temperature
polishing
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CN201911251903.6A
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CN110981196B (en
Inventor
张松竹
尹伟
吴文武
周勇
袁广平
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Guangdong Qingyuan Monalisa Building Ceramic Co ltd
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Guangdong Qingyuan Monalisa Building Ceramic Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions

Abstract

The invention discloses a porous thick polished glaze and travertine fully polished glazed porcelain tile and a preparation method thereof. The porous thick glaze comprises 65-80% of glaze polishing, 15-25% of suspending agent and 5-15% of foaming material by mass percent; wherein the decomposition or expansion temperature of the foaming material is higher than the initial melting temperature of the glaze polishing and lower than the firing temperature.

Description

Porous thick polished glaze and travertine fully polished glazed porcelain tile and preparation method thereof
Technical Field
The invention belongs to the field of ceramic building materials, and particularly relates to a porous thick polished glaze and travertine fully polished glazed ceramic tile and a preparation method thereof.
Background
With the development of the public demand and the market, the surface of a glazed product produced on the market is flat, the whole layer of the surface of a glazed brick is relatively monotonous, a new composite glaze is prepared, holes are formed on the surface of the glazed brick after the glazed brick is fired, or the surface of the glazed brick expands and foams, the surface of the glazed brick is polished to form a hole stone glaze effect, the texture of the glaze is improved, and the glazed brick is more natural and beautiful.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a porous thick polished glaze and travertine full-polished glazed porcelain tile with travertine glaze effect and a preparation method thereof.
In a first aspect, the invention provides a porous thick polished glaze, which comprises 65-80% of polished glaze, 15-25% of suspending agent and 5-15% of foaming material in percentage by mass; wherein the decomposition or expansion temperature of the foaming material is higher than the initial melting temperature of the glaze polishing and lower than the firing temperature.
The hole forming principle of the porous thick polished glaze is as follows: the foaming material is introduced into the glaze polishing, the foaming material needs to have the performance of high-temperature expansion or gas decomposition, holes or surface bubbles with different sizes are randomly generated on the glaze polishing layer in the process of high-temperature expansion or gas decomposition of the foaming material, the glaze polishing layer has a certain thickness due to the large glaze polishing application amount, the glaze polishing layer has a transparent effect after being fired at a low glaze polishing firing temperature, and the surface of the glaze polishing layer shows the hole with different sizes or the travertine effect containing holes in the glaze polishing layer after being polished.
Preferably, the decomposition or expansion temperature of the foaming material is 10-30 ℃ higher than the glaze throwing melting temperature and 15-35 ℃ lower than the firing temperature.
Preferably, the decomposition or expansion temperature of the foaming material is 1120-1170 ℃, the melting start temperature of the glaze polishing is 1110-1150 ℃, and the firing temperature is 1160-1190 ℃.
Preferably, the chemical composition of the glaze polishing comprises: by mass percent, SiO242～49％；Al2O311～14％；CaO 4～8％；MgO 3.3～7.2％；K2O 4.5～8％；Na22-4% of O; 6-10% of BaO; 4-8% of ZnO; loss on ignition is 8.8-11%.
Preferably, the foaming material comprises a material capable of expanding or decomposing at high temperature to generate gas, and is preferably one or more of sulfate, nitrate and calcium fluoride.
Preferably, the particle grading of the foaming material comprises: 6-30 meshes: 20-35%; 30-80 meshes: 40-65%; 80-120 meshes: 30-50%.
Preferably, the suspending agent comprises: the coating comprises, by mass, 10-15% of a dispersing agent, 25-33% of polyacrylate, 4-8% of a defoaming agent, 2-4% of a preservative, 7-10% of a leveling agent, 5-10% of ethylene glycol, 0.8-2% of sodium carboxymethylcellulose and 30-42% of water.
In a second aspect, the invention provides a travertine full-polished glazed porcelain tile, which comprises a porous thick polished glaze layer formed by the porous thick polished glaze.
After the travertine full-glazed porcelain tile is subjected to surface polishing treatment, the glazed layer forms irregular holes with different sizes randomly. In some embodiments, the holes have a diameter of 1mm to 10mm and a depth of 0.1mm to 1.5 mm.
In a third aspect, the invention provides a preparation method of the travertine full-polished glazed porcelain tile, which comprises the following steps:
(1) sequentially applying a cover glaze and ink-jet printing patterns on the blank;
(2) applying protective glaze on the surface of the blank after ink-jet printing;
(3) applying the porous thick polished glaze on the surface of the blank body after the protective glaze is applied;
(4) and (4) drying, sintering and polishing the blank obtained in the step (3).
Preferably, the specific gravity of the porous thick polished glaze is 1.7-1.85, and the application amount is 1500-2000 g/m2。
Preferably, the maximum sintering temperature is 1160-1190 ℃, and the sintering period is 68-75 min.
The preparation method of the travertine full-polished glazed porcelain tile has the following advantages: the holes can be formed in the glaze-polished layer, the raw materials for forming the holes are introduced into the glaze-polished layer, the glaze-polished layer can be finished through one glaze pouring process, and then the holes with different sizes are formed through the foaming materials with different granularities.
Detailed Description
The present invention is further illustrated by the following examples, which are to be understood as merely illustrative and not restrictive. Herein, the ceramic body may also be referred to as a green brick or a green body.
The invention provides a porous thick polished glaze, which comprises the following components: glaze polishing, suspending agents and foaming materials.
The mass fraction of the polished glaze in the porous thick polished glaze is 65-80%, and more preferably 70-75%. The size of the hole is determined by the mass fraction of the glaze polishing, and the larger the mass fraction of the glaze polishing is, the smaller the mass fraction of the foaming material is, the fewer the holes are; the less the mass fraction of the glaze polishing is, the more the foaming material is, the more the holes are. The mass fraction of the glaze polishing is in the range, so that the aperture of the hole of the travertine is 1-10mm, and the depth is 0.1-1.5 mm.
The chemical composition of the glaze polishing may include: by mass percent, SiO242～49％；Al2O311～14％；CaO4～8％；MgO 3.3～7.2％；K2O 4.5～8％；Na22-4% of O; 6-10% of BaO; 4-8% of ZnO; loss on ignition is 8.8-11%. The raw material composition of the glaze can include but is not limited to conventional glaze raw materials such as corundum.
The melting temperature of the glaze polishing is 1110-1150 ℃, and the firing temperature can be 1160-1190 ℃.
In some embodiments, the percentage of the foaming material in the porous thick glaze may be 5% to 15%, and more preferably 7% to 10%. The more the content of the foaming material in the porous thick glaze, the more the pores are, and the less the pores are. The travertine effect can be produced by using a foaming material that decomposes at high temperature to produce gas or expands in the perforated thick glaze.
The foaming material may include sulfate, nitrate, calcium fluoride, etc. or their combination, which may expand or decompose at high temperature to generate gas. Preferably, the decomposition temperature of the foaming material is 1120-1170 ℃. More preferably, the expansion decomposition temperature of the foaming material is 10-30 ℃ higher than the glaze-polishing initial melting temperature and 15-35 ℃ lower than the glaze-polishing firing temperature. Holes are generated through the glaze polishing layer, foaming materials forming the holes are mixed in the glaze polishing layer and are glazed together through a glaze spraying process, the decomposition or high-temperature expansion of the foaming materials is higher than the melting temperature of the glaze polishing layer, and after the glaze polishing layer is melted, the foaming materials start to decompose or expand, so that the glaze polishing layer is bubbled or gas passes through the glaze polishing layer in the process of expanding or decomposing gas to generate the holes; meanwhile, the temperature is required to be lower than the firing temperature of a kiln, otherwise, the foaming material is not expanded or decomposed but is not too low, the glaze polishing temperature is too high when the foaming material is too low, the fluidity of the glaze polishing layer is enhanced after the glaze polishing layer is melted to form a liquid phase, and holes of the glaze polishing layer through which gas passes are easy to fuse to influence the formation of holes on the surface.
In some embodiments, the particle grading of the foamed material comprises: 6-30 meshes: 20-35%; 30-80 meshes: 40-65%; 80-120 meshes: 30-50%. The introduction of foaming materials with different granularities randomly forms holes or bubbles with different sizes on the surface after the composite glaze slip is fired, the glaze polishing has a transparent effect, and the effect of forming holes on the glaze surface or the effect of the travertine containing holes in the glaze is achieved after the glaze polishing.
In addition, the suspending agent is introduced into the porous thick glaze polishing, so that the foaming material is dissolved in the glaze polishing glaze slurry and is not easy to precipitate, and the foaming material is uniformly and randomly applied to the surface of the brick. In some embodiments, the percentage of suspending agent in the thick perforated glaze may be 15-25%. The suspending agent mainly enables the foaming material to be uniformly distributed in the glaze polishing, so that the foaming material is not easy to precipitate.
The suspending agent may include: the coating comprises, by mass, 10-15% of a dispersing agent, 25-33% of polyacrylate, 4-8% of a defoaming agent, 2-4% of a preservative, 7-10% of a leveling agent, 5-10% of ethylene glycol, 0.8-2% of sodium carboxymethylcellulose and 30-42% of water.
The porous thick polished glaze disclosed herein can be used for preparing travertine fully polished glazed porcelain tiles. In one embodiment, the travertine fully-glazed porcelain tile sequentially comprises a blank layer, a cover glaze layer, a pattern layer, a protective glaze layer and a porous thick glaze-polished layer from bottom to top, wherein the porous thick glaze-polished layer is formed by the porous thick glaze-polished disclosed by the invention.
The travertine fully-polished glazed porcelain brick obtained by the invention has holes and bubbles in the glaze layer. The gas of the prior patent CN1050368115A is generated from a green body layer, the temperature of the gas decomposed by the green body layer is wholly lower than that of a low-temperature glaze layer, the low-temperature glaze layer in the patent is printed by a silk screen or a roller, and the low-temperature glaze layer is very thin, so that the gas can not be prevented from being discharged outwards to leave the glaze layer. The method adopts the mixing of the foaming material and the glaze throwing, the decomposition or expansion temperature of the foaming material is lower than the melting temperature of the glaze throwing, the glaze throwing is firstly melted, the foaming material in the glaze throwing is decomposed or expanded, so that part of gas does not break through the glaze throwing layer, the gas remained in the glaze throwing layer or expanded to bubble the glaze throwing, so that holes are generated in the glaze throwing layer, and the gas which breaks through the glaze layer can generate the effect of the holes on the surface of the glaze layer.
The thickness of the green layer is not particularly required. The thickness of the overglaze layer is not particularly required. The patterned layer may be formed by ink jet printing or roll screen printing. The thickness of the protective glaze layer is not particularly required. The thickness of the porous thick glaze polishing layer is 1.5 mm-2 mm (the thickness of the conventional glaze polishing layer is usually 0.2-0.35 mm). The glaze polishing layer of the invention needs to have a certain thickness to enable the foam material to generate the effect of holes or bubbles in the process of decomposition or expansion in the glaze polishing layer, thereby being closer to natural stone; if the thickness of the glaze layer is too thin, the visual effect of the holes is poor.
Hereinafter, a method for producing travertine fully-glazed porcelain tiles according to an embodiment of the present invention will be described by way of example.
First, a green body is prepared. The green body can be obtained by pressing a common ceramic base material.
The green body may then be dried, for example in a drying kiln. The drying time can be 0.8-1.5 h, and the moisture of the dried blank is controlled within 0.35%.
Then, a cover glaze is applied on the green body. The way of applying the overglaze can be glaze spraying or glaze pouring, etc. The specific gravity of the overglaze can be 1.4-1.88, and the glazing amount can be 350-550 g/m2. By adopting the process of applying the overglaze, the brick surface can be smooth, and the pattern printing color development is good.
And ink-jet printing a pattern on the overglaze layer. The ink can be printed by a digital ink-jet printer. The ceramic ink used may be blue, reddish brown, orange, golden yellow, lemon yellow, black, red, etc. The specific decorative pattern, texture and color effect are determined according to the design requirements.
And then, applying a protective glaze on the surface of the blank after ink-jet printing. The protective glaze has the functions of improving the color property of the ink and the glazing effect of porous thick polishing glaze. The protection glaze and the prior patent CN1050368115A have two different functions, the protection of the invention only has influence on the glaze spraying effect and the color development of ink-jet printing ink, and has little influence on the formation of holes, and the formation of the holes mainly has the effect of forming the holes after the glaze polishing layer expands or foams after being sintered by applying the glaze together with the foaming material in the glaze polishing and then polishing. In the prior patent CN1050368115A, the protective glaze (i.e. transparent glaze) is applied on the surface of the glaze at low temperature, and also plays a role of sealing the molten gas to form bubbles.
The protective glaze comprises the following raw materials: the glaze powder comprises the following components in parts by weight: 100 to 150 parts; isolation glue: 180-250 parts by weight; printing oil: 30-60. The chemical composition of the protective glaze comprises: SiO 22:：42～49％；Al2O3：11～14％；CaO：4～8％；MgO：3.3～7.2％；K2O：4.5～8％；Na2O: 2-4%; BaO: 6-10%; ZnO: 4-8%; loss on ignition is 8.8-11%.
The protective glaze can be applied by silk screen or roller printing. The specific gravity of the protective glaze can be 1.3-1.6. The mesh number of the protective glaze silk screen can be as follows: 80-160 meshes. In addition, the application amount of the protective glaze can be 60-100 g/m2。
Subsequently, a porous thick glaze was applied. The effect of forming holes with different sizes after the glaze is polished by the thick glaze polishing is applied, thereby increasing the layering of the glaze and playing a decorative effect. The porous thick glaze polishing can be applied in a glaze spraying mode. The specific gravity of the porous thick polished glaze can be 1.7-1.85, and the glaze slip can be effectively prevented from being split in the specific gravity range to cause local glaze shortage. The glazing amount of the porous thick polished glaze can be 1500-2000 g/m2. The glazing amount of the porous thick glaze layer in the range can enable the glaze layer to expand or form bubbles, so that a certain space is formed. The application amount of the glaze polishing in the prior art is usually 500g/m2On the left and right, but becauseThe application amount of the glaze polishing is less, the hole effect is limited by the thickness of the glaze polishing layer, the generated travertine effect has poor stereoscopic impression, is similar to a planar effect, and cannot meet the requirement of travertine full-glaze-polished porcelain tiles.
The blank with the applied porous thick glaze can then be dried, for example using an electric kiln. The temperature of the drying kiln is controlled to be 150-300 ℃, and the moisture after drying is controlled to be within 0.35%.
Then, firing is carried out, for example, low-temperature quick firing in a roller kiln. The sintering period can be 68-75 min, and the maximum sintering temperature range can be 1160-1190 ℃.
Polishing can be performed after firing. And the polishing is full polishing. The polishing process may employ either flexible or rigid modules.
The present invention will be described in detail by way of examples. It is also to be understood that the following examples are illustrative of the present invention and are not to be construed as limiting the scope of the invention, and that certain insubstantial modifications and adaptations of the invention by those skilled in the art may be made in light of the above teachings. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
1. Pressing green bricks from common ceramic base materials.
2. Drying in a drying kiln for 1h, and controlling the moisture of the dried blank within 0.35 percent.
3. And spraying a surface glaze. The specific gravity of the overglaze is 1.48, and the glazing amount of the dry material is 550g/m2。
4. The pattern was ink-jet printed using a digital ink-jet printer (available from hope, EFI fast equivalent).
5. And preparing the protective glaze. The protective glaze comprises the following chemical components in percentage by mass: SiO 2249％；Al2O311％；CaO8％；MgO 3.3％；K2O 6％；Na2O2 percent; 7.8 percent of BaO; 4% of ZnO; loss on ignition is 8.8%.
6. And applying a protective glaze by adopting a screen printing method. The specific gravity of the protective glaze is 1.3, and the mesh number of the full-through screen is as follows: 160 meshes.
7. And preparing porous thick polished glaze. The perforated thick glaze comprises 80% of glaze, 15% of suspending agent and 5% of foaming material. The chemical composition of the glaze polishing comprises SiO in percentage by mass245％；Al2O311％；CaO 5.9％；MgO7.2％；K2O 4.5％；Na2O2 percent; 6 percent of BaO; 8% of ZnO; loss on ignition is 10.3%. The initial melting temperature of the glaze polishing is 1110 ℃, and the firing temperature is 1165 ℃. The expansion decomposition temperature of the foamed material was 1135 ℃.
8. The adopted bell jar glaze pouring mode is applied with thick polished glaze. The specific gravity of the porous thick polished glaze is 1.85, and the glazing amount is 1500g/m2。
9. Drying in an electric kiln, wherein the temperature of the drying kiln is controlled at 200 ℃, and the moisture of the dried green body is controlled within 0.6 percent.
10. And (3) quickly firing in a roller kiln at a low temperature, wherein the firing period is 68min, and the maximum firing temperature is 1165 ℃.
11. And (6) polishing.
Example 2
1. Pressing green bricks from common ceramic base materials.
2. Drying in a drying kiln for 1.5h, and controlling the moisture of the dried blank within 0.35%.
3. And spraying a surface glaze. The specific gravity of the overglaze is 1.40, and the glazing amount of dry materials is 350g/m2。
4. The pattern was ink jet printed using a digital ink jet printer (available from hope, EFI express).
5. And preparing the protective glaze. The protective glaze comprises the following chemical components in percentage by mass: SiO 2249％；Al2O311％；CaO8％；MgO 3.3％；K2O 6％；Na2O2 percent; 7.8 percent of BaO; 4% of ZnO; loss on ignition is 8.8%.
6. And applying a protective glaze by adopting a screen printing method. The specific gravity of the protective glaze is 1.6, and the mesh number of the full-through screen is as follows: 80 meshes.
7. And preparing porous thick polished glaze. The perforated thick glaze comprises 65% of glaze, 20% of suspending agent and 15% of foaming material. The chemical composition of the glaze polishing is determined according to the qualityIn percentage by weight, SiO242％；Al2O314％；CaO 8％；MgO3.3％；K2O 8％；Na2O4 percent; 7.8 percent of BaO; 4% of ZnO; loss on ignition is 8.8%. The initial melting temperature of the glaze polishing is 1150 ℃, the firing temperature is 1190 ℃, and the expansion decomposition temperature of the foaming material is 1170 ℃.
8. The adopted bell jar glaze pouring mode is applied with thick polished glaze. The specific gravity of the porous thick polished glaze is 1.70, and the glazing amount is 2000g/m2。
9. Drying in an electric kiln, wherein the temperature of the drying kiln is controlled at 260 ℃, and the moisture of the dried green body is controlled within 0.6 percent.
10. And (3) quickly firing in a roller kiln at a low temperature, wherein the firing period is 75min, and the maximum firing temperature is 1190 ℃.
11. And (6) polishing.
Example 3
1. Pressing green bricks from common ceramic base materials.
2. Drying in a drying kiln for 1.2h, and controlling the moisture of the dried blank within 0.35%.
3. And (6) spraying a cover glaze. The specific gravity of the overglaze is 1.82, and the glazing amount of the dry material is 450g/m2。
4. The pattern was ink jet printed using a digital ink jet printer (available from hope, EFI express).
5. And preparing the protective glaze. The protective glaze comprises the following chemical components in percentage by mass: SiO 2249％；Al2O311％；CaO8％；MgO 3.3％；K2O 6％；Na2O2 percent; 7.8 percent of BaO; 4% of ZnO; loss on ignition is 8.8%.
6. And applying a protective glaze by adopting a screen printing method. Specific gravity of the protective glaze is 1.39, mesh number of the full-through screen is as follows: 120 meshes.
7. And preparing porous thick polished glaze. The perforated thick glaze comprises 75% of glaze, 15% of suspending agent and 10% of foaming material. The glaze polishing comprises the following chemical components in percentage by mass: SiO 2249％；Al2O311％；CaO 8％；MgO3.3％；K2O 6％；Na2O2 percent; 7.8 percent of BaO; 4% of ZnO; loss on ignition is 8.8%. The initial melting temperature of the glaze polishing is 1138 ℃, the firing temperature is 1170 ℃, and the firing temperature isThe bubble material has an expansion decomposition temperature of 1155 ℃.
8. The adopted bell jar glaze pouring mode is applied with thick polished glaze. The specific gravity of the porous thick polished glaze is 1.80, and the glazing amount is 1700g/m2。
9. Drying in an electric kiln, wherein the temperature of the drying kiln is controlled at 230 ℃, and the moisture of the dried green body is controlled within 0.6 percent.
10. And (3) quickly firing at low temperature in a roller kiln, wherein the firing period is 72min, and the maximum firing temperature is 1180 ℃.
11. And (6) polishing.

Claims (10)

1. A porous thick polished glaze is characterized by comprising 65-80% of polished glaze, 15-25% of suspending agent and 5-15% of foaming material in percentage by mass; wherein the decomposition or expansion temperature of the foaming material is higher than the initial melting temperature of the glaze polishing and lower than the firing temperature.
2. An apertured thick glaze polish according to claim 1, wherein the decomposition or expansion temperature of said foamed material is 10-30 ℃ above the glaze-melting temperature and 15-35 ℃ below the firing temperature.
3. An apertured thick glaze polish as claimed in claim 1 or 2, wherein the decomposition or expansion temperature of said foamed material is 1120-1170 ℃, the onset temperature of said polish is 1110-1150 ℃ and the firing temperature is 1160-1190 ℃.
4. A perforated thick glaze according to any one of claims 1 to 3, wherein the chemical composition of the glaze comprises: by mass percent, SiO242～49%；Al2O311～14%；CaO 4～8%；MgO 3.3～7.2%；K2O 4.5～8%；Na22-4% of O; 6-10% of BaO; 4-8% of ZnO; loss on ignition is 8.8-11%.
5. A perforated thick glaze according to any one of claims 1 to 4, wherein the foaming material comprises a material capable of expanding or decomposing at high temperature to generate gas, preferably one or more of sulfate, nitrate and calcium fluoride.
6. An apertured thick glaze according to any one of claims 1 to 5, wherein the particle grading of the foamed material comprises: 6-30 meshes: 20-35%; 30-80 meshes: 40-65%; 80-120 meshes: 30-50%.
7. A perforated thick glaze according to any one of claims 1 to 6, wherein the suspending agent comprises: the coating comprises, by mass, 10-15% of a dispersing agent, 25-33% of polyacrylate, 4-8% of a defoaming agent, 2-4% of a preservative, 7-10% of a leveling agent, 5-10% of ethylene glycol, 0.8-2% of sodium carboxymethylcellulose and 30-42% of water.
8. A travertine full-glazed porcelain tile, comprising a perforated thick glazed layer formed of the perforated thick glazed of any one of claims 1 to 7.
9. The method for preparing travertine fully-polished glazed porcelain tile as claimed in claim 8, which comprises the following steps:
(1) sequentially applying a cover glaze and ink-jet printing patterns on the blank;
(2) applying protective glaze on the surface of the blank after ink-jet printing;
(3) applying the porous thick polished glaze according to any one of claims 1 to 7 on the surface of the blank after the protective glaze is applied;
(4) and (4) drying, sintering and polishing the blank obtained in the step (3).
10. The method according to claim 9, wherein the porous thick glaze has a specific gravity of 1.7 to 1.85 and is applied in an amount of 1500 to 2000g/m2。
CN201911251903.6A 2019-12-09 2019-12-09 Porous thick polished glaze and travertine fully polished glazed porcelain tile and preparation method thereof Active CN110981196B (en)

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CN111704446A (en) * 2020-06-03 2020-09-25 蒙娜丽莎集团股份有限公司 Sodium-based bentonite type foamed ceramic blank, sodium-based bentonite type foamed ceramic tile and preparation method thereof
CN111732451A (en) * 2020-07-17 2020-10-02 广东博德精工建材有限公司 Porous thick polished glaze and preparation method thereof
CN111848122A (en) * 2020-08-05 2020-10-30 广东博德精工建材有限公司 Travertine full-polished glazed porcelain tile and preparation method thereof
CN116161982A (en) * 2023-01-13 2023-05-26 广东天弼陶瓷有限公司 Polished glaze travertine ceramic sheet and preparation method thereof

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CN111704446A (en) * 2020-06-03 2020-09-25 蒙娜丽莎集团股份有限公司 Sodium-based bentonite type foamed ceramic blank, sodium-based bentonite type foamed ceramic tile and preparation method thereof
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CN111732451A (en) * 2020-07-17 2020-10-02 广东博德精工建材有限公司 Porous thick polished glaze and preparation method thereof
CN111848122A (en) * 2020-08-05 2020-10-30 广东博德精工建材有限公司 Travertine full-polished glazed porcelain tile and preparation method thereof
CN116161982A (en) * 2023-01-13 2023-05-26 广东天弼陶瓷有限公司 Polished glaze travertine ceramic sheet and preparation method thereof

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