CN111848122A - Travertine full-polished glazed porcelain tile and preparation method thereof - Google Patents
Travertine full-polished glazed porcelain tile and preparation method thereof Download PDFInfo
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- CN111848122A CN111848122A CN202010778503.7A CN202010778503A CN111848122A CN 111848122 A CN111848122 A CN 111848122A CN 202010778503 A CN202010778503 A CN 202010778503A CN 111848122 A CN111848122 A CN 111848122A
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- 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
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Abstract
The invention discloses a travertine full-polished glazed porcelain tile and a preparation method thereof, belonging to the technical field of ceramic building materials, and the travertine full-polished glazed porcelain tile comprises a blank layer, a ground glaze layer on the surface of the ground glaze layer, a surface glaze layer on the surface of the surface glaze layer and a travertine full-polished glaze layer on the surface of the surface glaze layer, wherein the blank layer comprises the following raw materials in parts by mass: 20-60 parts of feldspar powder, 10-15 parts of aluminum powder, 8-15 parts of bentonite, 1.5-9 parts of anion powder, 13-30 parts of shell powder, 0.5-2 parts of spinel type ferrite, 0.5-1 part of a sterilization mildew inhibitor, 5-8 parts of nano titanium oxide, 2-8 parts of calcined soil and 1-11 parts of quartz powder. According to the invention, through the matching of the designed raw materials such as the anion powder, the bactericidal mildew preventive, the spinel type ferrite, the nano titanium oxide, the feldspar powder and the like, the problem that the travertine full-polished glazed porcelain tile is difficult to achieve the effects of resisting bacteria, sterilizing and purifying air due to the fact that more materials are selected and the performances such as wear resistance, water absorption rate and the like are considered is solved.
Description
Technical Field
The invention belongs to the technical field of ceramic building materials, and particularly relates to a travertine full-glazed porcelain tile and a preparation method thereof.
Background
The porcelain tile has the texture of natural stone, has the advantages of high gloss, high hardness, high wear resistance, high stain resistance, low water absorption, less color difference, diversified specifications and rich colors, and is a common wall and ground material for bathrooms.
The travertine glazed porcelain tile is a high-grade porcelain tile, its color and luster and sense of touch are more superior than other porcelain tiles, however, the material that current travertine glazed porcelain tile was thrown entirely selected more considers performances such as wearability and water absorption rate, hardly play antibiotic, the effect of air-purifying disinfects, under the relatively poor environment of ventilation effect, easily make the porcelain tile surface adsorb the dust and take place to milden and rot, not only can influence the pleasing to the eye of bathroom, the inside air quality scheduling problem of bathroom has also been reduced simultaneously, consequently, urgent need for a travertine glazed porcelain tile is thrown entirely on the market in present stage and preparation method solves above-mentioned problem.
Disclosure of Invention
The invention aims to: the travertine full-glazed porcelain brick and the preparation method thereof are provided for solving the problems that the prior travertine full-glazed porcelain brick is made of more materials, the wear resistance, the water absorption rate and other properties are considered, the antibacterial and bactericidal air purification effects are difficult to achieve, and dust adsorbed on the surface of the porcelain brick is easy to mildew under the environment with poor ventilation effect, so that the beauty of a bathroom is influenced, and the air quality inside the bathroom is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a travertine full-polished glazed porcelain tile comprises a green body layer and a ground coat on the surface of the green body layer, a surface coat on the surface of the ground coat, and a travertine full-polished glaze layer on the surface of the surface coat:
the blank layer comprises the following raw materials in parts by mass: 20-60 parts of feldspar powder, 10-15 parts of aluminum powder, 8-15 parts of bentonite, 1.5-9 parts of anion powder, 13-30 parts of shell powder, 0.5-2 parts of spinel type ferrite, 0.5-1 part of a sterilization mildew inhibitor, 5-8 parts of nano titanium oxide, 2-8 parts of calcined soil and 1-11 parts of quartz powder; 0.15-0.45 part of water reducing agent, 9-15 parts of zirconium silicate, 20-30 parts of barium carbonate, 12-18 parts of dolomite, 15-25 parts of calcined kaolin, 2-7 parts of zinc oxide and 1-3 parts of calcined talcum powder;
the ground glaze layer comprises the following raw materials in parts by weight: 17-56 parts of feldspar powder, 7-11 parts of aluminum powder, 5-11 parts of bentonite, 1.2-5 parts of anion powder, 10-26 parts of shell powder, 0.2-1.6 parts of spinel type ferrite, 0.2-0.6 part of sterilization mildew preventive, 2-4 parts of nano titanium oxide, 1.7-4 parts of calcined soil and 0.7-7 parts of quartz powder; 0.12-0.41 part of water reducing agent, 6-11 parts of zirconium silicate, 17-26 parts of barium carbonate, 9-14 parts of dolomite, 12-21 parts of calcined kaolin, 1.7-3 parts of zinc oxide and 0.6-2.7 parts of calcined talcum powder;
the overglaze layer comprises the following raw materials in parts by mass: 16-53 parts of feldspar powder, 6-8 parts of aluminum powder, 4-8 parts of bentonite, 1.1-2 parts of anion powder, 9-23 parts of shell powder, 0.1-1.3 parts of spinel type ferrite, 0.1-0.3 part of sterilization mildew preventive, 1-1.25 parts of nano titanium oxide, 1.6-3 parts of calcined soil and 0.6-4 parts of quartz powder; 0.1-0.38 part of water reducing agent, 5-8 parts of zirconium silicate, 16-23 parts of barium carbonate, 8-11 parts of dolomite, 14-18 parts of calcined kaolin, 1.6-3 parts of zinc oxide and 0.6-2.3 parts of calcined talcum powder;
the travertine full-glazed layer comprises the following raw materials in parts by weight: 16-53 parts of feldspar powder, 6-8 parts of aluminum powder, 4-8 parts of bentonite, 1.1-2 parts of anion powder, 9-23 parts of shell powder, 0.1-1.3 parts of spinel type ferrite, 0.1-0.3 part of sterilization mildew preventive, 1-1.25 parts of nano titanium oxide, 1.6-3 parts of calcined soil and 0.6-4 parts of quartz powder; 0.1-0.38 part of water reducing agent, 5-8 parts of zirconium silicate, 16-23 parts of barium carbonate, 8-11 parts of dolomite, 14-18 parts of calcined kaolin, 1.6-3 parts of zinc oxide and 0.6-2.3 parts of calcined talcum powder.
As a further description of the above technical solution:
the feldspar powder is a mixture of potassium feldspar powder and sodium feldspar powder, and the mass ratio of the potassium feldspar powder to the sodium feldspar powder is 0.75: 1.
As a further description of the above technical solution:
the bentonite is high-plasticity clay, and the main component of the high-plasticity clay is montmorillonite.
As a further description of the above technical solution:
the anion powder adopts nano tourmaline anion material, rare earth oxide and titanium dioxide as raw materials.
A preparation method of travertine full-polished glazed porcelain tiles comprises the following operation flows:
step S1: preparing a porcelain tile green body layer;
step S2: preparing a ground coat layer on the surface of the green body layer in a spraying or showering mode:
step S3: preparing a surface glaze layer on the surface of the ground glaze layer in an ink-jet printing mode;
step S4: forming a travertine full-polishing glaze layer on the surface of the overglaze layer by adopting a glaze spraying, glaze pressing or glaze spraying mode;
step S5: and after the completion of the full glaze polishing of the travertine, feeding the travertine into a tunnel kiln for firing and cooling.
As a further description of the above technical solution:
the preparation of the green body layer comprises the following operation flows:
a 1: screening and removing impurities of the raw materials of the green body layer and the silt selected for making the green body;
a 2: then, the green body layer composition raw materials are mixed with silt according to the mass parts, stirred and mixed, and poured into a mold to be pressed down by a press to prepare a green body layer;
a 3: and placing the green body layer into a drying kiln, calcining at the temperature of 1190-1220 ℃, and calcining at the temperature of 1190-1220 ℃ to obtain a green body layer, wherein the water absorption rate of the finished green body layer is less than or equal to 0.08%.
As a further description of the above technical solution:
the preparation of the anion powder comprises the following operation flows:
b 1: firstly, mixing 8-40 wt% of nano tourmaline negative ion material, 8-40 wt% of rare earth oxide and 40-80 wt% of titanium dioxide;
b 2: then carrying out mechanochemical compounding on the high-speed mixing stirrer;
b 3: and (3) attaching the mixture to the surface of the green body layer by adopting a spraying or showering mode, and finally carrying out high-temperature heat treatment.
As a further description of the above technical solution:
the specific gravity of the overglaze layer glaze slip is controlled to be 1.52-1.64, the flow rate is controlled to be 31-35 seconds, the specific gravity of the ground glaze layer glaze slip is controlled to be 1.70-1.88, and the flow rate is controlled to be 31-33 seconds.
As a further description of the above technical solution:
the thickness of the overglaze layer is 7-9mm, and the thickness of the travertine full-polishing glaze layer is 0.3-2 mm.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, through the matching of the designed raw materials such as the anion powder, the sterilization mildew preventive, the spinel type ferrite, the nano titanium oxide, the feldspar powder and the like, the problems that the wear resistance, the water absorption rate and other properties of the selected materials of the travertine full-glazed porcelain tile are more considered, the antibacterial, sterilization and air purification effects are difficult to achieve, the dust adsorbed on the surface of the porcelain tile is easy to mildew under the environment with poor ventilation effect, the attractiveness of a bathroom is influenced, and the air quality inside the bathroom is reduced are solved.
2. In the invention, the wear resistance of the travertine full-polished glaze layer can be improved to a certain extent by using the designed feldspar powder which is a mixed material of potassium feldspar powder and sodium feldspar powder as main components of a mineralizer and a flux, the powder diameter of the aluminum powder is 1-3 mm, the aluminum powder is uniformly distributed in the travertine full-polished glaze layer, the hardness and the wear resistance of the travertine full-polished glaze layer can be enhanced, the overall performance of the travertine full-polished glaze layer is improved, the bentonite is clay with higher viscosity by using the designed shell powder and the bentonite, the shell powder is uniformly added in the clay, the glossiness of the travertine full-polished glaze layer can be effectively improved after high-temperature sintering, and the shell powder is used as a raw material in the travertine full-polished glaze layer, and gas contained in pores expands to generate a travertine effect in the high-temperature sintering process, through the designed anion powder, the sterilization mildew preventive and the spinel type ferrite, the anion mineral powder can release air anions indoors under the action of illumination and heat, so that a certain sterilization effect can be achieved, the spinel type ferrite has a photocatalytic sterilization function under the illumination of a common illuminating lamp, so that photocatalytic sterilization is performed in a visible light region, indoor air purification is achieved, and meanwhile, the sterilization mildew preventive can further enhance the overall anticorrosion mildew-proof effect of the travertine full-polished glaze layer.
3. According to the invention, through the designed nano titanium oxide, the travertine full-glazed layer can effectively adsorb and decompose free formaldehyde, benzene, ammonia, sulfide and other harmful substances in the air, the peculiar smell of the air is obviously reduced, the air humidity can be regulated, the indoor living environment is improved, and the white brightness of the travertine full-glazed layer can be effectively improved through the designed zirconium silicate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below clearly and completely in connection with the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: the utility model provides a full glaze porcelain tile of throwing of hole stone, includes body layer and the ground coat on its surface, the overglaze layer on the ground coat surface, the glaze layer is thrown to the hole stone on the overglaze layer surface entirely:
the blank layer comprises the following raw materials in parts by mass: 20-60 parts of feldspar powder, 10-15 parts of aluminum powder, 8-15 parts of bentonite, 1.5-9 parts of anion powder, 13-30 parts of shell powder, 0.5-2 parts of spinel type ferrite, 0.5-1 part of a sterilization mildew inhibitor, 5-8 parts of nano titanium oxide, 2-8 parts of calcined soil and 1-11 parts of quartz powder; 0.15-0.45 part of water reducing agent, 9-15 parts of zirconium silicate, 20-30 parts of barium carbonate, 12-18 parts of dolomite, 15-25 parts of calcined kaolin, 2-7 parts of zinc oxide and 1-3 parts of calcined talcum powder;
the ground glaze layer comprises the following raw materials in parts by weight: 17-56 parts of feldspar powder, 7-11 parts of aluminum powder, 5-11 parts of bentonite, 1.2-5 parts of anion powder, 10-26 parts of shell powder, 0.2-1.6 parts of spinel type ferrite, 0.2-0.6 part of sterilization mildew preventive, 2-4 parts of nano titanium oxide, 1.7-4 parts of calcined soil and 0.7-7 parts of quartz powder; 0.12-0.41 part of water reducing agent, 6-11 parts of zirconium silicate, 17-26 parts of barium carbonate, 9-14 parts of dolomite, 12-21 parts of calcined kaolin, 1.7-3 parts of zinc oxide and 0.6-2.7 parts of calcined talcum powder;
the overglaze layer comprises the following raw materials in parts by mass: 16-53 parts of feldspar powder, 6-8 parts of aluminum powder, 4-8 parts of bentonite, 1.1-2 parts of anion powder, 9-23 parts of shell powder, 0.1-1.3 parts of spinel type ferrite, 0.1-0.3 part of sterilization mildew preventive, 1-1.25 parts of nano titanium oxide, 1.6-3 parts of calcined soil and 0.6-4 parts of quartz powder; 0.1-0.38 part of water reducing agent, 5-8 parts of zirconium silicate, 16-23 parts of barium carbonate, 8-11 parts of dolomite, 14-18 parts of calcined kaolin, 1.6-3 parts of zinc oxide and 0.6-2.3 parts of calcined talcum powder;
the travertine full-glazed layer comprises the following raw materials in parts by weight: 16-53 parts of feldspar powder, 6-8 parts of aluminum powder, 4-8 parts of bentonite, 1.1-2 parts of anion powder, 9-23 parts of shell powder, 0.1-1.3 parts of spinel type ferrite, 0.1-0.3 part of sterilization mildew preventive, 1-1.25 parts of nano titanium oxide, 1.6-3 parts of calcined soil and 0.6-4 parts of quartz powder; 0.1-0.38 part of water reducing agent, 5-8 parts of zirconium silicate, 16-23 parts of barium carbonate, 8-11 parts of dolomite, 14-18 parts of calcined kaolin, 1.6-3 parts of zinc oxide and 0.6-2.3 parts of calcined talcum powder.
Specifically, the feldspar powder is a mixture of potassium feldspar powder and albite powder, and the mass ratio of the potassium feldspar powder to the albite powder is 0.75: 1.
Specifically, the bentonite is high-plasticity clay, and the main component of the high-plasticity clay is montmorillonite.
Specifically, the anion powder adopts a nano tourmaline anion material, rare earth oxide and titanium dioxide as raw materials.
A preparation method of travertine full-polished glazed porcelain tiles comprises the following operation flows:
step S1: preparing a porcelain tile green body layer;
step S2: preparing a ground coat layer on the surface of the green body layer in a spraying or showering mode:
step S3: preparing a surface glaze layer on the surface of the ground glaze layer in an ink-jet printing mode;
step S4: forming a travertine full-polishing glaze layer on the surface of the overglaze layer by adopting a glaze spraying, glaze pressing or glaze spraying mode;
step S5: and after the completion of the full glaze polishing of the travertine, feeding the travertine into a tunnel kiln for firing and cooling.
Specifically, the preparation of the green body layer comprises the following operation flows:
a 1: screening and removing impurities of the raw materials of the green body layer and the silt selected for making the green body;
a 2: then, the green body layer composition raw materials are mixed with silt according to the mass parts, stirred and mixed, and poured into a mold to be pressed down by a press to prepare a green body layer;
a 3: and placing the green body layer into a drying kiln, calcining at the temperature of 1190-1220 ℃, and calcining at the temperature of 1190-1220 ℃ to obtain a green body layer, wherein the water absorption rate of the finished green body layer is less than or equal to 0.08%.
Specifically, the preparation of the anion powder comprises the following operation flows:
b 1: firstly, mixing 8-40 wt% of nano tourmaline negative ion material, 8-40 wt% of rare earth oxide and 40-80 wt% of titanium dioxide;
b 2: then carrying out mechanochemical compounding on the high-speed mixing stirrer;
b 3: and (3) attaching the mixture to the surface of the green body layer by adopting a spraying or showering mode, and finally carrying out high-temperature heat treatment.
Specifically, the specific gravity of the overglaze layer glaze slip is controlled to be 1.52-1.64, the flow rate is controlled to be 31-35 seconds, the specific gravity of the underglaze layer glaze slip is controlled to be 1.70-1.88, and the flow rate is controlled to be 31-33 seconds.
Specifically, the thickness of the overglaze layer is 7-9mm, and the thickness of the travertine full-polishing glaze layer is 0.3-2 mm.
Specifically, the thickness of the overglaze layer is 7-9mm, and the thickness of the travertine full-polishing glaze layer is 0.3-2 mm.
The working principle is as follows: when in use, firstly a porcelain brick body layer is prepared, in the preparation process, the raw materials for forming the body layer and silt selected for preparing the body are sieved to remove impurities, then the raw materials for forming the body layer are matched with the silt according to the mass parts, a series of processing is carried out, then the raw materials for forming the body layer are pressed into a body layer green body by a press, the green body of the body layer is put into a drying kiln, the calcining temperature is 1190-1220 ℃ is carried out, the body layer is prepared, the water absorption rate of the finished body layer is less than or equal to 0.08 percent, then a ground glaze layer is prepared on the surface of the body layer by adopting a spraying or showering mode, then a surface glaze layer is prepared on the surface of the ground glaze layer by adopting an ink-jet printing mode, a hole stone full-polished glaze layer is formed on the surface of the ground glaze layer by adopting a spraying, and finally the hole stone full-polished glaze layer is sent into a tunnel kiln for, and cooled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention, the technical solutions and the inventive concepts of the present invention with equivalent or modified alternatives and modifications within the technical scope of the present invention.
Claims (9)
1. The utility model provides a glaze porcelain tile is thrown entirely to hole stone, includes body layer and the ground coat on the surface thereof, the overglaze layer on the ground coat surface, the glaze layer is thrown entirely to hole stone on the overglaze layer surface, its characterized in that:
the blank layer comprises the following raw materials in parts by mass: 20-60 parts of feldspar powder, 10-15 parts of aluminum powder, 8-15 parts of bentonite, 1.5-9 parts of anion powder, 13-30 parts of shell powder, 0.5-2 parts of spinel type ferrite, 0.5-1 part of a sterilization mildew inhibitor, 5-8 parts of nano titanium oxide, 2-8 parts of calcined soil and 1-11 parts of quartz powder; 0.15-0.45 part of water reducing agent, 9-15 parts of zirconium silicate, 20-30 parts of barium carbonate, 12-18 parts of dolomite, 15-25 parts of calcined kaolin, 2-7 parts of zinc oxide and 1-3 parts of calcined talcum powder;
the ground glaze layer comprises the following raw materials in parts by weight: 17-56 parts of feldspar powder, 7-11 parts of aluminum powder, 5-11 parts of bentonite, 1.2-5 parts of anion powder, 10-26 parts of shell powder, 0.2-1.6 parts of spinel type ferrite, 0.2-0.6 part of sterilization mildew preventive, 2-4 parts of nano titanium oxide, 1.7-4 parts of calcined soil and 0.7-7 parts of quartz powder; 0.12-0.41 part of water reducing agent, 6-11 parts of zirconium silicate, 17-26 parts of barium carbonate, 9-14 parts of dolomite, 12-21 parts of calcined kaolin, 1.7-3 parts of zinc oxide and 0.6-2.7 parts of calcined talcum powder;
the overglaze layer comprises the following raw materials in parts by mass: 16-53 parts of feldspar powder, 6-8 parts of aluminum powder, 4-8 parts of bentonite, 1.1-2 parts of anion powder, 9-23 parts of shell powder, 0.1-1.3 parts of spinel type ferrite, 0.1-0.3 part of sterilization mildew preventive, 1-1.25 parts of nano titanium oxide, 1.6-3 parts of calcined soil and 0.6-4 parts of quartz powder; 0.1-0.38 part of water reducing agent, 5-8 parts of zirconium silicate, 16-23 parts of barium carbonate, 8-11 parts of dolomite, 14-18 parts of calcined kaolin, 1.6-3 parts of zinc oxide and 0.6-2.3 parts of calcined talcum powder;
the travertine full-glazed layer comprises the following raw materials in parts by weight: 16-53 parts of feldspar powder, 6-8 parts of aluminum powder, 4-8 parts of bentonite, 1.1-2 parts of anion powder, 9-23 parts of shell powder, 0.1-1.3 parts of spinel type ferrite, 0.1-0.3 part of sterilization mildew preventive, 1-1.25 parts of nano titanium oxide, 1.6-3 parts of calcined soil and 0.6-4 parts of quartz powder; 0.1-0.38 part of water reducing agent, 5-8 parts of zirconium silicate, 16-23 parts of barium carbonate, 8-11 parts of dolomite, 14-18 parts of calcined kaolin, 1.6-3 parts of zinc oxide and 0.6-2.3 parts of calcined talcum powder.
2. The travertine fully-polished glazed porcelain tile as claimed in claim 1, wherein the feldspar powder is a mixture of potassium feldspar powder and sodium feldspar powder, and the mass ratio of the potassium feldspar powder to the sodium feldspar powder is 0.75: 1.
3. The travertine fully-polished glazed porcelain tile as claimed in claim 1, wherein the bentonite is a highly plastic clay, and the main component of the highly plastic clay is montmorillonite.
4. The travertine full-polished glazed porcelain tile as claimed in claim 1, wherein the negative ion powder is prepared from nano-scale tourmaline negative ion material, rare earth oxide and titanium dioxide.
5. A preparation method of a travertine fully-polished glazed porcelain tile, which is characterized in that the travertine fully-polished glazed porcelain tile is the travertine fully-polished glazed porcelain tile of claim 1, and the preparation method comprises the following operation flows of:
step S1: preparing a porcelain tile green body layer;
step S2: preparing a ground coat layer on the surface of the green body layer in a spraying or showering mode:
step S3: preparing a surface glaze layer on the surface of the ground glaze layer in an ink-jet printing mode;
step S4: forming a travertine full-polishing glaze layer on the surface of the overglaze layer by adopting a glaze spraying, glaze pressing or glaze spraying mode;
step S5: and after the completion of the full glaze polishing of the travertine, feeding the travertine into a tunnel kiln for firing and cooling.
6. A preparation method of a travertine fully-polished glazed porcelain tile, which is the porcelain tile green body layer of claim 5, comprises the following operation flows of:
a 1: screening and removing impurities of the raw materials of the green body layer and the silt selected for making the green body;
a 2: then, the green body layer composition raw materials are mixed with silt according to the mass parts, stirred and mixed, and poured into a mold to be pressed down by a press to prepare a green body layer;
a 3: and placing the green body layer into a drying kiln, calcining at the temperature of 1190-1220 ℃, and calcining at the temperature of 1190-1220 ℃ to obtain a green body layer, wherein the water absorption rate of the finished green body layer is less than or equal to 0.08%.
7. A preparation method of a travertine fully-polished glazed porcelain tile, which is characterized in that the travertine fully-polished glazed porcelain tile is the ground coat layer of claim 5, and the preparation method comprises the following operation flows:
b 1: firstly, mixing 8-40 wt% of nano tourmaline negative ion material, 8-40 wt% of rare earth oxide and 40-80 wt% of titanium dioxide;
b 2: then carrying out mechanochemical compounding on the high-speed mixing stirrer;
b 3: and (3) attaching the mixture to the surface of the green body layer by adopting a spraying or showering mode, and finally carrying out high-temperature heat treatment.
8. The method for preparing travertine full-polished glazed porcelain tile according to claim 5, wherein the method comprises the following steps: the specific gravity of the overglaze layer glaze slip is controlled to be 1.52-1.64, the flow rate is controlled to be 31-35 seconds, the specific gravity of the underglaze layer glaze slip is controlled to be 1.70-1.88, and the flow rate is controlled to be 31-33 seconds.
9. The method for preparing travertine full-polished glazed porcelain tile according to claim 5, wherein the method comprises the following steps: the thickness of the overglaze layer is 7-9mm, and the thickness of the travertine full-polishing glaze layer is 0.3-2 mm.
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