A method for making a lubricious transfer printed glaze

Abstract

The present application relates to the field of ceramic glaze, more particularly, it relates to a kind of production method of lubricating retransfer glaze.A kind of production method of lubricating retransfer glaze, steps include: selecting fine raw materials, lubricating retransfer glaze powder base preparation, lubricating retransfer glaze pulp preparation, glazing and firing.By introducing high-transparency frit, matte frit and matt emulsion frit in the formula of lubricating retransfer glaze powder base, the stability of the lubricating retransfer effect can be ensured, the color development is strengthened, the simulation texture is improved, and the color difference is reduced;The lubricating retransfer glaze layer generated by firing has good wear resistance and stain resistance, and the glaze surface pattern is clear and the embossing effect is distinct, which has the retransfer effect of natural gem and marble texture that ordinary effect glaze does not have, and the surface of the lubricating retransfer glaze layer is delicate and soft, with smooth, delicate lubricating feeling and level.

Description

Technical Field

[0001] This invention relates to the field of ceramic glazes, and more specifically, to a method for producing a lubricating replica glaze. Background Technology

[0002] With rising living standards, the ceramic market is characterized by demand for high-end, artistic, and personalized products, as well as functional items. Novel, three-dimensional, and highly realistic decorative materials have become mainstream. Among these, antique-style tiles decorated with matte glaze, dry-granule glaze, and other common effect glazes, as well as fully polished glazes, dominate the market. While fully polished glazed antique-style tiles offer rich patterns and colors, their smooth, glossy surface lacks distinct layers and a realistic texture. Although matte glaze and dry-granule glaze can achieve a matte finish and a three-dimensional effect, they cannot replicate the true texture of natural stone or gemstones. Furthermore, their poor surface smoothness and delicacy can lead to pattern distortion and color discrepancies. Summary of the Invention

[0003] In view of this, and in view of the shortcomings of the prior art, the present invention provides a method for manufacturing a lubricating replica glaze that has a smooth and delicate feel, distinct raised effect, and good wear resistance and anti-fouling properties.

[0004] A method for preparing a lubricating replica glaze includes the following steps:

[0005] S1: Select fine raw materials. The mineral composition of the fine raw materials includes, by weight percentage: 5-16% calcium-sodium plagioclase, 10-48% potassium feldspar, 3-16% barium carbonate, 3-18% kaolin, 3-16% dolomite, 3-15% zinc oxide, 3-15% calcined talc, 5-40% high-transparency frit, 3-16% white corundum, 3-12% matte frit, and 2-10% opaque frit.

[0006] S2: Preparation of lubricating replica glaze powder base material: The selected fine raw materials are mixed and crushed to obtain lubricating replica glaze powder base material;

[0007] S3: Preparation of lubricating replica glaze slurry: By weight percentage, 0.6-0.9‰ preservative, 0.3-0.6% sodium tripolyphosphate and 0.1-0.4% methylcellulose are added to the lubricating replica glaze powder base. The mixture is ball-milled into a slurry and then passed through a 120-150 mesh sieve to remove impurity particles to obtain the lubricating replica glaze slurry.

[0008] S4: Glazing and firing. The brick blank is glazed with a lubricating replica glaze. The lubricating replica glaze is applied to the surface of the brick blank and then fired at high temperature to obtain a lubricating replica glaze layer.

[0009] Furthermore, the raw materials for the high-transparency frit include, by weight percentage: 52-60% calcite, 10-40% quartz sand, 12-21% tremolite, 6-15% barium carbonate, 1-10% fluorite, 4-9% glass powder, 4-8% potassium silicate, and 3-6% borax.

[0010] Furthermore, the raw materials for the matte frit include, by weight percentage: 28-35% potassium feldspar, 10-40% quartz sand, 1-8% zircon sand, 10-16% magnesium oxide, 5-12% aluminum oxide, 2-16% sphalerite, 2-5% borax, and 1-2% calcium fluoride.

[0011] Furthermore, the raw materials for the matte opaque frit include, by weight percentage: 30-50% calcite, 5-40% strontium ore, 10-35% quartz sand, 3-10% sphalerite, 7-15% celestite, 5-14% kaolin, 6-10% potassium carbonate, 3-6% barium sulfate, and 4-7% alumina.

[0012] Furthermore, the lubricating replica glaze layer is fired from a lubricating replica glaze powder base material with the following chemical composition: SiO2: 48.0–51.0 wt%, Al2O3: 13.5–16.0 wt%, SrO: 9.0–14.5 wt%, Fe2O3: 0–0.1 wt%, ZnO: 1.5–4.0 wt%, CaO: 8.0–12.0 wt%, MgO: 2.0–6.0 wt%, K2O: 0.5–2.0 wt%, Na2O: 2.0–4.0 wt%, BaO: 1.0–4.0 wt%, B2O3: 0–4.0 wt%, F2O: 1.0–0.5 wt%, Ti2O: 0–0.1 wt%, and loss on ignition: 0–10 wt%.

[0013] Furthermore, the preservative used in step S3 is benzoic acid, p-hydroxybenzoic acid, or methyl p-hydroxybenzoate.

[0014] Furthermore, in step S3, the ball milling fineness is 0.03–0.05 mm, the specific gravity is 1.88–1.92, and the flow rate is controlled at 50–70 s.

[0015] Furthermore, the specific gravity of the lubricating replica glaze is 1.82–1.95 g / cm³. 3 Glazing weight: 665~685g / m 2 .

[0016] Furthermore, the firing temperature of the lubricating replica glaze is 1080–1160℃, and the firing cycle is 25–100 min.

[0017] Furthermore, the surface gloss of the lubricated replica glaze layer is 4–8 degrees, and the coefficient of volume expansion at 400℃ is 180–190 × 10⁻⁶.-7 / K.

[0018] The present invention has the following advantages:

[0019] 1. In this invention, calcium-sodium plagioclase is introduced into the formulation of the lubricating replica glaze powder base to replace potassium-sodium feldspar. This can adjust the composition of SiO2 and Al2O3 in the lubricating replica glaze powder base. Furthermore, by introducing high-transparency frit, matte frit, and opaque frit, not only can the stability of the lubricating replica glaze layer's replica effect be guaranteed, but the color development can also be enhanced, the replica simulation effect improved, the simulation texture enhanced, and the color difference reduced.

[0020] 2. In this invention, during the firing process, the lubricating replica glaze not only protects the pattern layer from damage, but also contains a large number of needle-like or columnar calcium feldspar crystals. The crystallization is uniform and interwoven in a network, which reduces the formation of pinholes on the glaze surface. It has good wear resistance and anti-fouling properties. Furthermore, the lubricating replica glaze has a wide melting range, which is conducive to the glaze sintering and forming operation, improves the glaze forming quality, and the fired lubricating replica glaze layer has good thermal stability.

[0021] 3. In this invention, the lubricating replica glaze layer obtained by the above preparation method has good transparency, making the glaze pattern clear and the relief effect distinct. It has the replica effect of natural gemstones and marble textures that ordinary effect glazes do not have. At the same time, the surface of the lubricating replica glaze layer is delicate and soft. When the palm touches it continuously, the surface of the lubricating replica glaze has a smooth, delicate lubrication and layered feel. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Figure 1 This is a flowchart illustrating the method for preparing the lubricating replica glaze used in an embodiment of the present invention.

[0024] Figure 2 The images show a comparison of the lubricated replica glaze layers in Example 1 and Comparative Examples 1-2 of the present invention.

[0025] Figure 3 The images show the XRD patterns of the lubricated replica glaze layers in Examples 1-3 of this invention.

[0026] Figure 4 The image shows the XRD pattern of the lubricating replica glaze powder base material of Embodiment 1 of the present invention.

[0027] Figure 5 This is a SEM image of the surface layer of the lubricated replica glaze layer in Embodiment 1 of the present invention.

[0028] Figure 6 This is a SEM image of the middle layer of the lubricated replica glaze layer in Embodiment 1 of the present invention.

[0029] Figure 7 This is a SEM image of the lower layer of the lubricated replica glaze layer in Embodiment 1 of the present invention.

[0030] Figure 8 This is an optical schematic diagram of the lubricated replica glaze layer after light irradiation in Embodiment 1 of the present invention.

[0031] Figure 9 This is a schematic diagram showing the melting temperature range of the lubricating replica glaze powder base material in Embodiment 1 of the present invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this invention, the invention is further illustrated by the following embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the invention.

[0033] Example 1

[0034] A method for producing a lubricating replica glaze, such as Figure 1 As shown, the specific steps include:

[0035] S1: Selecting high-quality raw materials,

[0036] The mineral composition of the fine raw materials includes, by weight percentage: 15% calcium-sodium plagioclase, 18% potassium feldspar, 6% barium carbonate, 6% kaolin, 3% dolomite, 4% zinc oxide, 6% calcined talc, 27% high-transparency frit, 3% white corundum, 5% matte frit, and 7% opaque frit.

[0037] The raw materials for the high-transparency frit include, by weight percentage: 52% calcite, 13% quartz sand, 14% tremolite, 8% barium carbonate, 2% fluorite, 4% glass powder, 4% potassium silicate, and 3% borax.

[0038] The raw materials for matte frit include, by weight percentage: 35% potassium feldspar, 22% quartz sand, 5% zircon sand, 13% magnesium oxide, 8% aluminum oxide, 10% sphalerite, 5% borax and 2% calcium fluoride;

[0039] The raw materials for the matte opaque frit include, by weight percentage: 41% calcite, 16% strontium ore, 10% quartz sand, 5% sphalerite, 9% celestite, 5% kaolin, 6% potassium carbonate, 3% barium sulfate, and 5% alumina.

[0040] S2: Preparation of lubricating replica glaze powder base material

[0041] The selected fine raw materials are mixed and crushed. The fine raw material powder obtained after crushing is sieved and 250-mesh fine raw material powder is selected to obtain the lubricating replica glaze powder base material.

[0042] S3: Preparation of lubricating replica glaze slurry: 0.6‰ benzoic acid, 0.3% sodium tripolyphosphate and 0.1% methylcellulose were added to the lubricating replica glaze powder base by weight percentage. The slurry was prepared by ball milling with a fineness of 0.03 mm and a specific gravity of 1.92. The flow rate was controlled at 70 s. The slurry was then passed through a 150-mesh sieve to remove impurity particles, thus obtaining the lubricating replica glaze slurry.

[0043] S4: Glazing and firing. A lubricating, replicated glaze is applied to the brick blank. The specific gravity of the lubricating, replicated glaze is 1.95 g / cm³. 3 Glazing weight: 685g / m 2 Subsequently, the glazed brick blanks are placed in a roller kiln and fired at high temperature. The firing temperature of the lubricating replica glaze is 1160℃ and the firing cycle is 29 minutes, resulting in a lubricating replica glaze layer.

[0044] Example 2

[0045] A method for producing a lubricating replica glaze, such as Figure 1 As shown, the specific steps include:

[0046] S1: Selecting high-quality raw materials,

[0047] The mineral composition of the fine raw materials includes, by weight percentage: 9% calcium-sodium plagioclase, 21% potassium feldspar, 4% barium carbonate, 3% kaolinite, 5% dolomite, 8% zinc oxide, 10% calcined talc, 21% high-transparency frit, 5% white corundum, 10% matte frit, and 4% opaque frit.

[0048] The raw materials for the high-transparency frit include, by weight percentage: 60% calcite, 10% quartz sand, 12% tremolite, 6% barium carbonate, 1% fluorite, 4% glass powder, 4% potassium silicate, and 3% borax.

[0049] The raw materials for matte frit include, by weight percentage: 30% potassium feldspar, 15% quartz sand, 8% zircon sand, 16% magnesium oxide, 12% aluminum oxide, 15% sphalerite, 2% borax and 2% calcium fluoride.

[0050] The raw materials for the matte opaque frit include, by weight percentage: 48% calcite, 10% strontium ore, 10% quartz sand, 3% sphalerite, 10% celestite, 5% kaolin, 6% potassium carbonate, 3% barium sulfate, and 5% alumina.

[0051] S2: Preparation of lubricating replica glaze powder base material

[0052] The selected fine raw materials are mixed and crushed. The fine raw material powder obtained after crushing is sieved and 250-mesh fine raw material powder is selected to obtain the lubricating replica glaze powder base material.

[0053] S3: Preparation of lubricating replica glaze slurry: 0.9‰ benzoic acid, 0.6% sodium tripolyphosphate and 0.4% methylcellulose were added to the lubricating replica glaze powder base by weight percentage. The slurry was prepared by ball milling with a fineness of 0.03 mm and a specific gravity of 1.92. The flow rate was controlled at 70 s. The slurry was then passed through a 150-mesh sieve to remove impurity particles, thus obtaining the lubricating replica glaze slurry.

[0054] S4: Glazing and firing. A lubricating, replicated glaze is applied to the brick blank. The specific gravity of the lubricating, replicated glaze is 1.95 g / cm³. 3 Glazing weight: 685g / m 2 Subsequently, the glazed brick blanks are placed in a roller kiln and fired at high temperature. The firing temperature of the lubricating replica glaze is 1160℃ and the firing cycle is 29 minutes, resulting in a lubricating replica glaze layer.

[0055] Example 3

[0056] A method for producing a lubricating replica glaze, such as Figure 1 As shown, the specific steps include:

[0057] S1: Selecting high-quality raw materials,

[0058] The mineral composition of the fine raw materials includes, by weight percentage: 16% calcium-sodium plagioclase, 18% potassium feldspar, 6% barium carbonate, 6% kaolin, 3% dolomite, 4% zinc oxide, 6% calcined talc, 27% high-transparency frit, 3% white corundum, 5% matte frit, and 6% opaque frit.

[0059] The raw materials for the high-transparency frit include, by weight percentage: 52% calcite, 13% quartz sand, 14% tremolite, 8% barium carbonate, 2% fluorite, 4% glass powder, 4% potassium silicate, and 3% borax.

[0060] The raw materials for matte frit include, by weight percentage: 35% potassium feldspar, 22% quartz sand, 5% zircon sand, 13% magnesium oxide, 8% aluminum oxide, 10% sphalerite, 5% borax and 2% calcium fluoride;

[0061] The raw materials for the matte opaque frit include, by weight percentage: 41% calcite, 16% strontium ore, 10% quartz sand, 5% sphalerite, 9% celestite, 5% kaolin, 6% potassium carbonate, 3% barium sulfate, and 5% alumina.

[0062] S2: Preparation of lubricating replica glaze powder base material

[0063] The selected fine raw materials are mixed and crushed. The fine raw material powder obtained after crushing is sieved, and 200-mesh fine raw material powder is selected to obtain the lubricating replica glaze powder base material.

[0064] S3: Preparation of lubricating replica glaze slurry: 0.6‰ benzoic acid, 0.3% sodium tripolyphosphate and 0.1% methylcellulose were added to the lubricating replica glaze powder base by weight percentage. The slurry was prepared by ball milling with a fineness of 0.05 mm and a specific gravity of 1.88. The flow rate was controlled at 50 s. The slurry was then passed through a 120-mesh sieve to remove impurity particles, thus obtaining the lubricating replica glaze slurry.

[0065] S4: Glazing and firing. A lubricating, replicated glaze is applied to the brick blank. The specific gravity of the lubricating, replicated glaze is 1.82 g / cm³. 3 Glazing weight: 665g / m 2 Subsequently, the glazed brick blanks are placed in a roller kiln and fired at high temperature. The firing temperature of the lubricating replica glaze is 1080℃ and the firing cycle is 25 minutes, resulting in a lubricating replica glaze layer.

[0066] Comparative Example 1

[0067] Compared with Example 1, the difference of Comparative Example 1 is that the calcium sodium plagioclase in step S1 is replaced with an equal weight of potassium sodium feldspar, while the other steps remain unchanged. The obtained lubricating replica glaze is applied to the surface of the brick blank. The brick blank is the same batch as the brick blank used in Examples 1-3. The lubricating replica glaze layer is prepared and is referred to as Comparative Example 1.

[0068] Comparative Example 2

[0069] Compared with Example 1, the difference in Comparative Example 2 is that the high-transparency frit, matte frit, and opaque frit in step S1 were all replaced with an equal weight of matte frit K-86 purchased from a third-party company. The raw materials of matte frit K-86 include, by weight percentage: 27% potassium feldspar, 38% quartz sand, 10% zinc oxide, 12% strontium carbonate, 9% magnesium oxide, and 4% barium carbonate. The remaining steps remain unchanged. The obtained lubricating replica glaze is applied to the surface of the brick blank. The brick blank is from the same batch as the brick blanks used in Examples 1-3. A lubricating replica glaze layer is prepared and is referred to as Comparative Example 2.

[0070] like Figure 2 visible, Figure 2The images show the effect of stacking and comparing the lubricated replica glaze layers obtained after firing in Example 1 and Comparative Examples 1-2 (the top layer is the effect of the lubricated replica glaze layer in Example 1, the middle layer is the effect of the lubricated replica glaze layer in Comparative Example 1, and the bottom layer is the effect of the lubricated replica glaze layer in Comparative Example 2). As can be seen from the stacked comparison images, all three exhibit a certain degree of matte gloss. However, compared to the lubricated replica glaze layer obtained in Comparative Example 1, the lubricated replica glaze layer obtained in Example 1 has a more distinct surface relief effect, more obvious color development, and a higher level of realistic texture. Furthermore, the lubricated replica glaze layer feels smoother and more delicate to the touch. Compared to the lubricated replica glaze layer obtained in Comparative Example 2, Example 1, by introducing a high-transparency frit, a self-made matte frit, and a matte opaque frit instead of a purchased matte frit, results in a more uniform and stable color development, less color difference, and a more aesthetically pleasing lubricated replica glaze layer. Additionally, the lubricated replica glaze layer feels smoother to the touch.

[0071] like Figure 3-4 visible, Figure 3 The XRD scan results are for the lubricated replica glaze layer in Examples 1-3. Figure 4 The image shows the XRD pattern of the lubricating replica glaze powder base in Example 1 (the second row is (Na0.4Ca0.6)Al1.6Si2.4O8, and the third row is SiO2). Combined with... Figure 3-4 The XRD curve characteristics show that the peak position is near the strongest diffraction peak of SiO2 crystal, and its main phase is glass phase. In addition to the characteristic peak of glass phase, there are also calcium-sodium plagioclase and some mullite crystal phases.

[0072] like Figure 5-7 visible, Figure 5 This is the SEM image of the surface layer of the lubricated replica glaze layer in Example 1. Figure 6 This is the SEM image of the middle layer of the lubricated replica glaze layer in Example 1. Figure 7 This is a SEM image of the lower layer of the lubricated replica glaze layer in Example 1. (From...) Figure 5-7 It can be seen that the glaze layer of the lubricated replica glaze contains a large number of needle-like or columnar calcium feldspar crystals, with uniform crystallization, few pinholes on the glaze surface, and a network-like interwoven structure. This helps to produce diffuse reflection when light shines on the lubricated replica glaze layer, forming a delicate and soft sense of layering.

[0073] like Figure 8 visible, Figure 8This is a schematic diagram illustrating the optical phenomena of a lubricated replica glaze layer after being illuminated by light. After being illuminated by incident light, some light directly strikes the surface layer of the lubricated replica glaze layer, forming diffuse reflection. The fully reflected light is emitted irregularly, giving the lubricated replica glaze layer a soft, matte finish. Other light penetrates into the inner layer of the lubricated replica glaze layer, creating diffuse and reflected light. Compared to reflected light, diffuse light has a smaller reflection angle, which further enhances the soft, matte finish of the lubricated replica glaze layer, visually exhibiting a delicate smoothness and depth.

[0074] like Figure 9 visible, Figure 9 The diagram shows the melting temperature range of the lubricating replica glaze powder base material in Example 1. Figure (a) is the melting image at 1080℃, Figure (b) is the melting image at 1110℃, Figure (c) is the melting image at 1140℃, and Figure (d) is the melting image at 1160℃. It can be seen that the lubricating replica glaze powder base material begins to melt at 1080℃ and can completely melt at 1160℃. The melting range is wide (approximately 80℃), and the firing range is relatively wide, which is beneficial to the glaze sintering and forming operation, thereby improving the glaze forming quality.

[0075] According to the test methods of "Determination of Abrasion Resistance and Stain Resistance" of glazed tile surface in GB / T3810.7-2016, the surface abrasion resistance and stain resistance of the lubricated replica glaze layers obtained in Examples 1-3 were tested, and the test results are shown in Table 1.

[0076] Group abrasion resistance Stain resistance Example 1 Level 3 Level 4 Example 2 Level 3 Level 4 Example 3 Level 3 Level 4

[0077] Table 1

[0078] As shown in Table 1, the wear resistance of the lubricating replica glaze obtained in Examples 1-3 can reach level 3, and the stain resistance can reach level 4, which fully meets the needs of daily household use and has high stain resistance.

[0079] According to the test method in GB / T3810.8-2016 "Determination of Linear Thermal Expansion", the coefficient of linear expansion of the lubricated replica glaze layer of Example 1 at different temperatures was tested, and the test results are shown in Table 2.

[0080]

[0081] Table 2

[0082] As shown in Table 2, under different temperature changes, the linear expansion coefficient of the lubricating replica glaze layer obtained in Example 1 is relatively stable, indicating that when the lubricating replica glaze layer is heated, its internal components will not undergo significant vibration and expansion due to the increase in temperature, and the lubricating replica glaze layer has good thermal stability.

[0083] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Parts not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A method of making a lubricious transfer printed glaze, comprising: Includes the following steps: S1: Select fine raw materials. The mineral composition of the fine raw materials includes, by weight percentage: 5-16% calcium-sodium plagioclase, 10-48% potassium feldspar, 3-16% barium carbonate, 3-18% kaolin, 3-16% dolomite, 3-15% zinc oxide, 3-15% calcined talc, 5-40% high-transparency frit, 3-16% white corundum, 3-12% matte frit, and 2-10% opaque frit. S2: Preparation of lubricating replica glaze powder base material: The selected fine raw materials are mixed and crushed to obtain lubricating replica glaze powder base material; S3: Preparation of lubricating replica glaze slurry: By weight percentage, 0.6-0.9‰ preservative, 0.3-0.6% sodium tripolyphosphate and 0.1-0.4% methylcellulose are added to the lubricating replica glaze powder base. The mixture is ball-milled into a slurry and then passed through a 120-150 mesh sieve to remove impurity particles to obtain the lubricating replica glaze slurry. S4: Glazing and firing. The brick blank is glazed with a lubricating replica glaze. The lubricating replica glaze is applied to the surface of the brick blank and then fired at high temperature to obtain a lubricating replica glaze layer. The raw materials for high-transparency frit include, by weight percentage: 52-60% calcite, 10-40% quartz sand, 12-21% tremolite, 6-15% barium carbonate, 1-10% fluorite, 4-9% glass powder, 4-8% potassium silicate, and 3-6% borax; The raw materials for matte frit include, by weight percentage: 28-35% potassium feldspar, 10-40% quartz sand, 1-8% zircon sand, 10-16% magnesium oxide, 5-12% aluminum oxide, 2-16% sphalerite, 2-5% borax, and 1-2% calcium fluoride; The raw materials for the matte opaque frit include, by weight percentage: 30-50% calcite, 5-40% strontium ore, 10-35% quartz sand, 3-10% sphalerite, 7-15% celestite, 5-14% kaolin, 6-10% potassium carbonate, 3-6% barium sulfate, and 4-7% alumina.

2. The method of claim 1, wherein the method further comprises the step of: The lubricating replica glaze layer is made from a lubricating replica glaze powder base with the following chemical composition: SiO2: 48.0-51.0 wt%, Al2O3: 13.5-16.0 wt%, SrO: 9.0-14.5 wt%, Fe2O3: 0-0.1 wt%, ZnO: 1.5-4.0 wt%, CaO: 8.0-12.0 wt%, MgO: 2.0-6.0 wt%, K2O: 0.5-2.0 wt%, Na2O: 2.0-4.0 wt%, BaO: 1.0-4.0 wt%, B2O3: 0-4.0 wt%, CaF2: 0.5-1.0 wt%, TiO2: 0-0.1 wt%, and loss on ignition: 0-10 wt%.

3. The method of claim 1, wherein the method further comprises the step of: The preservative used in step S3 is benzoic acid, p-hydroxybenzoic acid, or methyl p-hydroxybenzoate.

4. The method of claim 3, wherein the step of applying the lubricating slip is performed by screen printing. In step S3, the ball milling fineness is 0.03-0.05 mm, the specific gravity is 1.88-1.92, and the flow rate is controlled at 50-70 s.

5. The method of claim 1, wherein the method further comprises the step of: The specific gravity of the lubricating transfer glaze paste is 1.82-1.95, and the spraying glaze weight is 665-685 g / m 2 . ​ 6. The method of claim 1, wherein the method further comprises the step of: The firing temperature of the lubricating replica glaze is 1080–1160℃, and the firing cycle is 25–100 min. ​ 7. The method of claim 1, wherein the method further comprises the step of: The surface gloss of the lubricated transfer printed glaze layer is 4-8 degrees, and the bulk expansion coefficient at 400°C is 180-190 x 10 -7 / K. ​

Images