A glaze with a silk glaze texture and a ceramic tile

Abstract

The present invention discloses a glaze and a ceramic tile with a silk glaze texture. By adding boron fiber and aluminum silicate fiber to the glaze in the present invention, the fired glaze surface forms a touch feeling like silk, overcoming the disadvantages that the touch feeling of the silk texture glaze in the prior art is general and there is no touch feeling imitating the silk texture. When 5% - 10% by mass of boron fiber and 2% - 4% of aluminum silicate fiber are added to the glaze and fired in the temperature range of 1130°C - 1235°C, it is beneficial to obtain a silk texture glaze with a better silk glaze texture. The present invention also provides a ceramic tile. Using the above glaze, the fired ceramic tile glaze surface has a silk glaze touch feeling. In some preferred embodiments, the wear resistance grade and stain resistance grade of the silk texture glaze reach above grade four, the glaze surface is good without defects, significantly improving the quality of the ceramic tile product in terms of glaze texture and enhancing the product grade of the silk glaze texture ceramic tile.

Description

Technical Field

[0001] The present invention relates to the field of architectural ceramics, and particularly to a glaze and a ceramic tile having a silk glaze texture. Background Art

[0002] Ceramic tiles are widely used in homes due to their excellent performance, but their surfaces are hard, brittle, and uncomfortable to the touch.

[0003] On the market, there are also glazes such as velvet gold glaze and wax glaze with a warm and smooth surface imitating silk texture. They improve the glaze texture by increasing the glass phase and the content of fine crystals, but their touch is average and there is no touch imitating silk texture. Summary of the Invention

[0004] The main object of the present invention is to provide a glaze and a ceramic tile having a silk glaze texture.

[0005] To achieve the above object, the present invention provides a glaze having a silk glaze texture. Boron fibers and aluminum silicate fibers are added to the glaze, and a silk touch can be obtained on the glaze surface after the glaze is sintered.

[0006] Boron fibers refer to elemental boron generated by reducing boron halide and deposited on a carrier fiber (metal fiber or chemical fiber) in a continuous evaporation device to form a coated fiber. The carrier fiber slowly passes through a mixed gas stream of boron trichloride and hydrogen in the deposition chamber at a temperature of 1000 - 1200°C, and the vapor of elemental boron is deposited on the carrier fiber. By adjusting the speed of the carrier fiber passing through the deposition chamber, boron fibers with different diameters can be obtained. Boron fibers are soft in texture, generally about 100 microns in diameter, and have a melting point of 2050°C. Aluminum silicate fibers are cotton-like inorganic fibers made from pyrophyllite as the main raw material, melted at a high temperature of 2100°C, and processed by processes such as high-speed centrifugation or spraying.

[0007] In some preferred embodiments, the suitable firing temperature of the glaze is 1130°C - 1235°C. By mass percentage, the raw materials of the glaze contain 5% - 10% boron fibers and 2% - 4% aluminum silicate fibers, and the mass ratio of boron fibers to aluminum silicate fibers is 1:(0.3 - 0.8).

[0008] In the above-mentioned silk-textured glaze, 5% - 10% by mass of boron fibers and 2% - 4% of aluminum silicate fibers are added. The firing temperature and initial melting point of boron fibers and aluminum silicate fibers are much higher than those of the base glaze. During the firing process of the glaze, they can better combine and arrange with the glass phase and various crystal phases, increasing the structural toughness. They are in a three-dimensional intertwined shape, which can facilitate gas exhaust and reduce the generation of glaze surface defects. Boron fibers and aluminum silicate fibers, due to their fibrous structure, have a soft characteristic themselves. During firing, they do not melt and change their structure, but are arranged in a cubic-like close packing with the glass phase, mullite, quartz and other crystal phases, making the glaze form a soft touch like silk after firing.

[0009] The glaze with a silk glaze texture provided by this solution can be applied to the production of ceramic products, such as vases, furnishings, sculptures in art ceramics; flower pots, vases, lamp holders in technical ceramics, etc., and is especially suitable for the large-scale production of ceramic tiles.

[0010] Preferably, the raw materials of the glaze contain 5% - 8% of boron fibers and 3% - 4% of aluminum silicate fibers by mass percentage. Boron fibers and aluminum silicate fibers within this content range are beneficial for obtaining a silk-like simulated touch.

[0011] Preferably, the raw materials of the glaze contain 4% - 8% of strontium carbonate by mass percentage. It can reduce glaze surface defects such as prickly heat and pinholes, and further improve the glaze surface quality.

[0012] Optionally, the raw materials of the glaze contain 12% - 18% of frit by mass percentage. The initial melting temperature of the frit is 950 - 1030 °C, which is lower than the initial melting temperature of conventional frits of 1030 - 1150 °C. Its function is to lower the initial melting temperature of the glaze, reduce the high-temperature viscosity, enhance the density of the glaze layer, and improve the glaze surface quality. Further, the chemical composition of the frit, by mass percentage, includes: SiO2 50 - 60%, Al2O3 15.1 - 20.5%, BaO 5.6 - 7.2%, alkali metal oxides: 7.7 - 10.3%, CaO 4.3 - 5.1%, SrO 4.0 - 4.7%, ZnO 3.4 - 4.4%.

[0013] Preferably, the chemical composition of the raw materials of the glaze, by mass percentage, includes: loss on ignition 0.4 - 1.1%, SiO2 45.3 - 56.8%, Al2O3 11.4 - 17.6%, K2O 2.6 - 4.7%, Na2O 1.6 - 4.2%, ZnO 1.3 - 3.9%, CaO 4.7 - 8.9%, MgO 3.1 - 5.7%, SrO 3.5 - 5.9%; B2O3 4.2 - 6.9%.

[0014] Preferably, the mineral composition of the raw materials, by mass percentage, includes: frit 12% - 18%, boron fiber 5% - 10%, aluminum silicate fiber 2% - 4%, feldspar 25% - 45%, kaolin 8% - 14%, quartz 5% - 12%, zirconium silicate 3% - 5%, zinc oxide 2% - 5%, strontium carbonate 4% - 6%, and porcelain stone 6% - 11%. In the mineral composition of the raw materials, the feldspar usually refers to potassium feldspar, and / or sodium feldspar, and / or lithium feldspar. In the examples, potassium feldspar / sodium feldspar is used as an example. Feldspar is usually used as a flux. In addition to the conventional flux, kaolin used as clay, quartz and porcelain stone used as skeleton materials, and boron fiber and aluminum silicate fiber used to form a silk touch, zirconium silicate mainly plays a role in color development, and zinc oxide mainly plays a role in assisting color development. The above contents of zirconium silicate and zinc oxide can improve the glaze color development of this solution. The glaze with the above mineral composition is fired at 1130°C - 1235°C, which helps to obtain a glaze surface with a silk-like touch and good defect-free properties, as well as reach a wear resistance and stain resistance level of four or above. Those skilled in the art can also add boron fiber and aluminum silicate fiber to different glaze formulations to obtain a silk glaze surface touch.

[0015] The present invention also provides a ceramic tile, at least part of the surface of which is attached with a glaze layer made of the glaze with a silk glaze texture in any of the above solutions, so it has at least all the effects brought by the above technical solutions, which will not be elaborated one by one here.

[0016] For the prepared ceramic tile with a silk glaze texture, it adopts the conventional preparation method of ceramic tiles. For example, the preparation method may include the following steps: preparing a green body, sequentially applying a surface glaze, inkjet printing a pattern, applying a silk texture glaze, and firing on the surface of the green body, and then obtaining a ceramic tile with a silk glaze texture after edge grinding. There are no special regulations on the components of the green body and the surface glaze used, and conventional compositions can be adopted.

[0017] Furthermore, the ceramic tile further includes a printed pattern layer above or below the glaze layer. For example, there is a printed pattern layer below the glaze layer, and the printed pattern layer is a silk texture pattern printed by inkjet. The prepared ceramic has the same appearance and touch as silk, achieving a simulated silk texture and greatly improving the decorative effect.

[0018] Compared with the prior art, such as velvet glaze and wax glaze, which imitate the silk texture by increasing the glass phase and the content of fine crystals, the present invention forms a silk touch on the glaze surface after firing by adding boron fiber and aluminum silicate fiber to the glaze, overcoming the technical problems that the glaze surface of the anti-silk texture glaze in the prior art has a general hand feeling and no silk-like touch. In some preferred embodiments, a glaze surface with a silk-like touch and good defect-free properties can be obtained, and in terms of performance, the wear resistance and stain resistance levels can reach four or above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a physical diagram of Embodiment 19;

[0021] The realization of the purpose of the present application, functional features and advantages will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of the technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0023] A glaze with a silk glaze texture contains boron fibers and aluminum silicate fibers in the glaze. In some preferred embodiments, the suitable firing temperature of the glaze is 1130°C to 1235°C. By mass percentage, the raw materials of the glaze contain 5% to 10% of boron fibers and 2% to 4% of aluminum silicate fibers, and the mass ratio of the boron fibers to the aluminum silicate fibers is 1:(0.3 to 0.8). In a further preferred embodiment, the raw materials of the glaze contain 5% to 8% of boron fibers and 3% to 4% of aluminum silicate fibers by mass percentage.

[0024] In some preferred embodiments, the raw materials of the glaze contain 4% to 8% of strontium carbonate by mass percentage.

[0025] In some preferred embodiments, the raw materials of the glaze, by mass percentage, contain 12% to 18% of fritted glaze, and the initial melting temperature of the fritted glaze is 950 to 1030 °C. In a further preferred embodiment, the chemical composition of the fritted glaze, by mass percentage, includes: SiO2 50 to 60%, Al2O3 15.1 to 20.5%, BaO 5.6 to 7.2%, alkali metal oxides 7.7 to 10.3%, CaO 4.3 to 5.1%, SrO 4.0 to 4.7%, ZnO 3.4 to 4.4%.

[0026] In some preferred embodiments, the chemical composition of the raw materials of the glaze, by mass percentage, includes: loss on ignition 0.4 to 1.1%, SiO2 45.3 to 56.8%, Al2O3 11.4 to 17.6%, K2O 2.6 to 4.7%, Na2O 1.6 to 4.2%, ZnO 1.3 to 3.9%, CaO 4.7 to 8.9%, MgO 3.1 to 5.7%, SrO 3.5 to 5.9%; B2O3 4.2 to 6.9%.

[0027] In some preferred embodiments, the mineral composition of the raw materials of the glaze, by mass percentage, includes: fritted glaze 12% to 18%, boron fiber 5% to 10%, aluminum silicate fiber 2% to 4%, feldspar 25% to 45%, kaolin 8% to 14%, quartz 5% to 12%, zirconium silicate 3% to 5%, zinc oxide 2% to 5%, strontium carbonate 4% to 6%, porcelain stone 6% to 11%.

[0028] This application also provides a ceramic tile, at least a part of the surface of which is attached with a glaze layer made of the glaze with a silk glaze texture in any of the above solutions; in some specific embodiments, the ceramic tile further includes a printed pattern layer located above or below the glaze layer.

[0029] The described ceramic tile adopts the conventional preparation method of ceramic tiles. For example, the preparation method may include the following steps: preparing a green body, applying a surface glaze, inkjet printing a pattern, applying a silk glaze texture glaze, and firing on the surface of the green body in sequence, and obtaining a ceramic tile with a silk glaze texture after edge grinding. There are no special regulations on the components of the green body and the surface glaze adopted, and the conventional composition can be used. The following provides a set of surface glaze and green body compositions as examples:

[0030] The chemical composition of the surface glaze includes: by mass percentage, SiO2 47.9 to 52.7%, Al2O3 26.8 to 31.1%, alkali metal oxides 6.7 to 8.3%, ZrO2 5.4 to 6.9%.

[0031] The raw material composition of the green body includes: by mass percentage, 10-18% of Hunan potassium-sodium sand, 9-15% of Cheng sand, 7-13% of Wengyuan potassium sand, 8-12% of Xingda stone powder, 5-8% of strong plastic clay, 1-3% of talc mud, 20-30% of Fengsheng sodium stone powder, 8-13% of Feng black mud, 5-15% of QX washed clay, 3-6% of mud paste, and 0.3-1.5% of additive. The additive is 0.1-0.45% of high-efficiency enhancer, 0.1-0.55% of sodium tripolyphosphate, and 0.1-0.5% of water glass.

[0032] Here, a set of raw material compositions of the green body and surface glaze of ceramic tiles, as well as specific preparation steps and performance testing methods of ceramic tiles, are provided exemplarily for the preparation and performance testing of ceramic tiles in each embodiment.

[0033] 1.1 Preparation items

[0034] The preparation steps of the ceramic tile are as follows:

[0035] S1: Prepare the green body: The various color powders of the green body and the base material are cloth-fed according to a preset texture. The preset texture is a fine strip-like filamentous texture, and the feeding is controlled by a cloth-feeding system, and then press-molded to obtain a green body layer;

[0036] S2: Apply surface glaze and inkjet printing: After the green body layer is dried, spray a little water to moisten the surface and then apply the surface glaze, and inkjet print a silk texture pattern to obtain a pattern layer. Among them, the preset texture of the green body corresponds to the inkjet pattern;

[0037] S3: Apply silk texture glaze: Apply silk texture glaze on the pattern layer. The application method is pouring glaze, and the pouring glaze specific gravity is 1.86 g / cm 3 , and the glaze application amount is 400 g / m 2 , to obtain a silk texture glaze layer;

[0038] S4: Firing: Fire in a kiln to obtain a semi-finished ceramic tile. The maximum firing temperature of the kiln can be 1130-1235 °C, and the firing cycle is 45-70 minutes;

[0039] S5: After edge grinding, the finished ceramic tile is obtained.

[0040] 1.2 Green body items

[0041] The composition of the green body raw materials includes: by mass percentage, 12% of Hunan potassium-sodium sand, 12% of Cheng sand, 11% of Wengyuan potassium sand, 8% of Xingda stone powder, 7% of strong plastic clay, 2% of talc mud, 25% of Fengsheng sodium stone powder, 10% of Feng black mud, 8% of QX washed clay, 4% of mud paste, and 1% of additive. The additive is 0.15% of high-efficiency enhancer, 0.35% of sodium tripolyphosphate, and 0.5% of water glass.

[0042] 1.3 Surface glaze items

[0043] The chemical composition of the surface glaze raw materials includes: by mass percentage, SiO2 50.7%, Al2O3 29.8%, alkali metal oxides 8.3%, and ZrO2 5.7%.

[0044] 2 Effect verification items

[0045] The following method is used to verify the effect of the glazed surface of the ceramic tiles obtained in the above examples / comparative examples.

[0046] 2.1 Silk-like glazed surface texture detection item: Touch feeling

[0047] The touch feeling is evaluated by stars, with three stars having the highest simulation degree, and zero stars being hard and without silk touch;

[0048] ★★★ Silk simulation touch

[0049] ★★☆ Approximate silk touch

[0050] ★☆☆ Having silk touch

[0051] ☆☆☆ Hard and without silk touch

[0052] 2.2 Glazed surface defect detection item: Visual inspection

[0053] Under the condition of sufficient and uniform incandescent light, visually inspect at a distance of 1 meter from the surface of the ceramic tile for obvious defects;

[0054] 2.3 Glossiness detection item: Adopt the method for measuring specular glossiness of building finishing materials (GB / T 13891-2008);

[0055] 2.4 Abrasion resistance and stain resistance detection item: Adopt the standard of ceramic tiles (GB / T 4100-2015).

[0056] The following further illustrates the present application through two groups of examples and comparative examples:

[0057] The first group of examples and comparative examples are specifically implemented as follows:

[0058] Example 1

[0059] Adopt the body and surface glaze compositions of item 1.2 body item and 1.3 surface glaze item. According to mass percentage, adopt the following composition of silk texture glaze: boron fiber 10%, aluminum silicate fiber 4%, potassium feldspar 25%, sodium feldspar 15%, kaolin 10%, quartz 7%, zirconium silicate 3%, zinc oxide 4%, barium carbonate 5%, porcelain stone 8%, and talcum powder 9%.

[0060] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tiles.

[0061] Example 2

[0062] Using the body and surface glaze compositions of item 1.2 body item and item 1.3 surface glaze item, according to mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 3.2%, potassium feldspar 25%, sodium feldspar 17%, kaolin 10%, quartz 7%, zirconium silicate 4%, zinc oxide 5%, barium carbonate 5%, porcelain stone 8%, talcum powder 7.8%.

[0063] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0064] Example 3

[0065] Using the body and surface glaze compositions of item 1.2 body item and item 1.3 surface glaze item, according to mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 25%, sodium feldspar 10%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, barium carbonate 8%, porcelain stone 12%, talcum powder 4%.

[0066] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0067] Example 4

[0068] Using the body and surface glaze compositions of item 1.2 body item and item 1.3 surface glaze item, according to mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 5%, aluminum silicate fiber 2%, potassium feldspar 27%, sodium feldspar 15%, kaolin 11%, quartz 8%, zirconium silicate 4%, zinc oxide 4%, barium carbonate 5%, porcelain stone 10%, talcum powder 9%.

[0069] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0070] Example 5

[0071] Using the body and surface glaze compositions of item 1.2 body item and item 1.3 surface glaze item, according to mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 5%, aluminum silicate fiber 2.5%, potassium feldspar 27%, sodium feldspar 15%, kaolin 10.5%, quartz 8%, zirconium silicate 4%, zinc oxide 4%, barium carbonate 5%, porcelain stone 10%, talcum powder 9%.

[0072] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0073] Example 6

[0074] Using the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), by mass percentage, the following is the composition of the silk-textured glaze: boron fiber 7.5%, aluminum silicate fiber 3%, potassium feldspar 25%, sodium feldspar 15%, kaolin 10.5%, quartz 8%, zirconium silicate 4%, zinc oxide 4%, barium carbonate 4%, porcelain stone 10%, talc powder 9%.

[0075] According to item 1.1 (preparation), the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0076] Example 7

[0077] Using the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), by mass percentage, the following is the composition of the silk-textured glaze: boron fiber 6%, aluminum silicate fiber 3.6%, potassium feldspar 27%, sodium feldspar 15%, kaolin 10%, quartz 7%, zirconium silicate 4%, zinc oxide 4%, barium carbonate 5%, porcelain stone 10.4%, talc powder 8%.

[0078] According to item 1.1 (preparation), the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0079] Example 8

[0080] Using the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), by mass percentage, the following is the composition of the silk-textured glaze: boron fiber 5%, aluminum silicate fiber 4%, potassium feldspar 24%, sodium feldspar 15%, kaolin 12%, quartz 8%, zirconium silicate 5%, zinc oxide 4%, barium carbonate 6%, porcelain stone 8%, talc powder 9%.

[0081] According to item 1.1 (preparation), the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0082] Example 9

[0083] Using the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), by mass percentage, the following is the composition of the silk-textured glaze: boron fiber 5%, aluminum silicate fiber 3.5%, potassium feldspar 30%, sodium feldspar 15%, kaolin 12%, quartz 10%, zirconium silicate 3%, zinc oxide 2%, barium carbonate 4.5%, porcelain stone 7%, talc powder 8%.

[0084] According to item 1.1 (preparation), the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0085] Example 10

[0086] Using the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), by mass percentage, the silk texture glaze composition is as follows: boron fiber 8%, aluminum silicate fiber 3%, potassium feldspar 25%, sodium feldspar 17%, kaolin 10%, quartz 7%, zirconium silicate 4%, zinc oxide 5%, barium carbonate 5%, porcelain stone 8%, talc powder 8%.

[0087] According to item 1.1 (preparation), the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0088] Comparative Example 1

[0089] Using the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), by mass percentage, the silk texture glaze composition is as follows: boron fiber 10%, aluminum silicate fiber 8%, potassium feldspar 25%, sodium feldspar 15%, kaolin 8%, quartz 7%, zirconium silicate 3%, zinc oxide 4%, barium carbonate 5%, porcelain stone 7%, talc powder 8%.

[0090] According to item 1.1 (preparation), the firing temperature is 1150 °C and the firing cycle is 60 minutes to prepare the ceramic tile.

[0091] The ceramic tiles prepared in the first group of implementation comparative examples were tested according to 2 Effect verification items and the results are as follows in the table:

[0092]

[0093]

[0094] From the test results in the above table, it can be seen that for the marble ceramic tiles prepared in the first group of implementation comparative examples, at the same firing temperature and with different amounts of boron fiber and aluminum silicate fiber, the glaze texture has a silk touch. Appropriate amounts of boron fiber and aluminum silicate fiber help to exhaust gas, reduce pinholes and pimples. In Examples 4 and 5, a good defect-free glaze surface is obtained. The glaze surface of the ceramic tiles obtained in Comparative Example 1 is full of pinholes and pimple defects, mainly due to excessive fiber structure. Among them, Examples 2 and 6 obtained an approximate silk touch, and the stain resistance grades of Examples 2 and 4 - 10 all reached level 4, with an overall better effect.

[0095] The specific implementation of the second group of implementation comparative examples is as follows:

[0096] Comparative Example 3

[0097] This comparative example uses the body and surface glaze compositions of item 1.2 (body) and item 1.3 (surface glaze), and adopts the silk texture glaze composition of the prior art. By mass percentage, the specific composition is as follows:

[0098] Water-milled albite 22%, potassium feldspar 20%, quartz 12%, high white ball clay 12%, talcum powder 11.5%, barium carbonate 10%, zinc oxide 4.5%, dolomite 3.5%, corundum powder 1.5%, strontium carbonate 3%.

[0099] According to the preparation item 1.1, the firing temperature is 1150 °C and the firing cycle is 60 minutes, and the ceramic tile is prepared.

[0100] Example 11

[0101] Using the body and surface glaze compositions of item 1.2 body item and 1.3 surface glaze item, different from Comparative Example 3, the difference is that an appropriate amount of boron fiber and aluminum silicate fiber are added to the silk texture glaze formulation, and the remaining components are adjusted adaptively, as follows:

[0102] According to the mass percentage, the following composition of the silk texture glaze is used: boron fiber 5%, aluminum silicate fiber 2%, water-milled albite 17%, potassium feldspar 20%, quartz 12%, high white ball clay 10%, talcum powder 11.5%, barium carbonate 10%, zinc oxide 4.5%, dolomite 3.5%, corundum powder 1.5%, strontium carbonate 3%.

[0103] According to the preparation item 1.1, the firing temperature is 1150 °C and the firing cycle is 60 minutes, and the ceramic tile is prepared.

[0104] Example 12-1

[0105] All the parameters and preparation steps used in this example are the same as those in Example 11, and the difference is only that: the firing temperature is adjusted to 1130 °C, as follows:

[0106] According to the mass percentage, the following composition of the silk texture glaze is used: boron fiber 5%, aluminum silicate fiber 2%, water-milled albite 17%, potassium feldspar 20%, quartz 12%, high white ball clay 10%, talcum powder 11.5%, barium carbonate 10%, zinc oxide 4.5%, dolomite 3.5%, corundum powder 1.5%, strontium carbonate 3%.

[0107] According to the preparation item 1.1, the firing temperature is 1130 °C and the firing cycle is 60 minutes, and the ceramic tile is prepared.

[0108] Example 12-2

[0109] All the parameters and preparation steps used in this example are the same as those in Example 11, and the difference is only that: the firing temperature is adjusted to 1235 °C, as follows:

[0110] According to mass percentage, the composition of the silk texture glaze is as follows: boron fiber 5%, aluminum silicate fiber 2%, water-ground albite 17%, potassium feldspar 20%, quartz 12%, high white ball clay 10%, talcum powder 11.5%, barium carbonate 10%, zinc oxide 4.5%, dolomite 3.5%, corundum powder 1.5%, strontium carbonate 3%.

[0111] According to the preparation item 1.1, the firing temperature is 1235 °C and the firing cycle is 60 minutes, and the ceramic tile is prepared.

[0112] Comparative Example 4-1

[0113] All the parameters and preparation steps adopted in this example are the same as those in Example 11, except that: the firing temperature is adjusted to 1100 °C, specifically as follows:

[0114] According to mass percentage, the composition of the silk texture glaze is as follows: boron fiber 5%, aluminum silicate fiber 2%, water-ground albite 17%, potassium feldspar 20%, quartz 12%, high white ball clay 10%, talcum powder 11.5%, barium carbonate 10%, zinc oxide 4.5%, dolomite 3.5%, corundum powder 1.5%, strontium carbonate 3%.

[0115] According to the preparation item 1.1, the firing temperature is 1100 °C and the firing cycle is 60 minutes, and the ceramic tile is prepared.

[0116] Comparative Example 4-2

[0117] All the parameters and preparation steps adopted in this comparative example are the same as those in Example 11, except that: the firing temperature is adjusted to 1250 °C, specifically as follows:

[0118] According to mass percentage, the composition of the silk texture glaze is as follows: boron fiber 5%, aluminum silicate fiber 2%, water-ground albite 17%, potassium feldspar 20%, quartz 12%, high white ball clay 10%, talcum powder 11.5%, barium carbonate 10%, zinc oxide 4.5%, dolomite 3.5%, corundum powder 1.5%, strontium carbonate 3%.

[0119] According to the preparation item 1.1, the firing temperature is 1250 °C and the firing cycle is 60 minutes, and the ceramic tile is prepared.

[0120] The ceramic tiles prepared in Comparative Example 3 to Comparative Example 4-2 are carried out according to 2 Effect verification items for testing, and the results are as follows in the table:

[0121]

[0122] From the data in the above table, especially when comparing the data of Comparative Example 3 and Example 11, after adding boron fibers and aluminum silicate fibers to the silk-textured glaze formulation of the prior art, the glaze surface has a touch similar to silk. Examples 12-1 to Comparative Example 4-2 respectively adopted different firing temperatures, and had a touch similar to silk at different firing temperatures of 1130°C and 1235°C, and the abrasion resistance, stain resistance level, and glaze effect were better than those of Comparative Example 4-1 and 4-2. When the firing temperature of Comparative Example 4-1 was 1100°C and that of Comparative Example 4-2 was 1250°C, it had a silk touch, but other properties such as abrasion resistance, stain resistance level, and glaze effect were poor.

[0123] Comparative Example 5

[0124] The main adjustment in this comparative example is as follows: The glaze formulation of a light-transmitting ceramic tile with an ice crack effect and its preparation process described in CN115433022B was adopted. This glaze component itself does not have the texture of a silk glaze, and the specific details are as follows:

[0125] It uses the body and surface glaze composition of item 1.2 body item and item 1.3 surface glaze item. According to the mass percentage, the following glaze composition is adopted: potassium feldspar 13%, sodium feldspar 37%, quartz 12%, limestone 7%, spodumene 9%, high boron frit 22%.

[0126] According to the mass percentage, the chemical composition of the high boron frit is: loss on ignition 7.2 - 13.2%, SiO2 39.3 - 51.3%, Al2O3 5.5 - 8.2%, K2O 0.1 - 0.4%, Na2O 3.1 - 6.2%, B2O3 7.6 - 15.2%, CaO 7.6 - 13.1%, BaO 0.8 - 3.7%, MgO 2.7 - 4.3%.

[0127] According to item 1.1 preparation item, the firing temperature is 1200°C and the firing cycle is 65 minutes to prepare the ceramic tile.

[0128] Example 13

[0129] The difference from Comparative Example 5 is that boron fibers and aluminum silicate fibers are added to this formulation, and some components are adjusted adaptively, and the specific details are as follows:

[0130] It uses the body and surface glaze composition of item 1.2 body item and item 1.3 surface glaze item. According to the mass percentage, the following silk-textured glaze composition is adopted: boron fiber 5%, aluminum silicate fiber 2%, potassium feldspar 13%, sodium feldspar 36%, quartz 11%, limestone 5%, spodumene 8%, high boron frit 20%.

[0131] By mass percentage, the chemical composition of the high-boron frit is: loss on ignition 7.2 - 13.2%, SiO2 39.3 - 51.3%, Al2O3 5.5 - 8.2%, K2O 0.1 - 0.4%, Na2O 3.1 - 6.2%, B2O3 7.6 - 15.2%, CaO 7.6 - 13.1%, BaO 0.8 - 3.7%, MgO 2.7 - 4.3%.

[0132] According to Preparation Item 1.1, the firing temperature is 1200 °C and the firing cycle is 65 minutes, and the ceramic tile is prepared.

[0133] The ceramic tiles prepared in Example 13 and Comparative Example 5 were tested according to 2 Effect verification items and the results are shown in the following table:

[0134]

[0135] It can be seen from the test results in the above table that Comparative Example 5 adopted a set of glaze formulations without silk texture. From the comparison data, it can be seen that in Example 13 after adding an appropriate proportion of boron fiber and aluminum silicate fiber, the glaze surface has a silk touch. This shows that adding boron fiber and aluminum silicate fiber to the non-silk texture glaze formulation in the prior art can also make its glaze surface have a silk touch.

[0136] Example 14

[0137] All the parameters and preparation steps adopted in this example are the same as those in Example 3, except that: strontium carbonate is used to replace barium carbonate, and some components are adjusted adaptively.

[0138] Using the body and glaze compositions of Body Item 1.2 and Glaze Item 1.3, by mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 15%, sodium feldspar 20%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 8%, porcelain stone 12%, talcum powder 4%.

[0139] According to Preparation Item 1.1, the firing temperature is 1150 °C and the firing cycle is 55 minutes, and the ceramic tile is prepared.

[0140] Example 15

[0141] All the parameters and preparation steps adopted in this example are the same as those in Example 14, except that: the firing temperature is adjusted to 1130 °C, and some components are adjusted adaptively, specifically as follows:

[0142] Using the body and surface glaze components of item 1.2 body item and 1.3 surface glaze item, by mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 10%, sodium feldspar 25%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 8%, porcelain stone 12%, talcum powder 4%.

[0143] According to item 1.1 preparation item, the firing temperature is 1130 °C and the firing cycle is 55 minutes to prepare the ceramic tile.

[0144] Example 16

[0145] All the parameters and preparation steps adopted in this example are the same as those in Example 14, except that: the firing temperature is adjusted to 1235 °C, and some components are adjusted adaptively, specifically as follows:

[0146] Using the body and surface glaze components of item 1.2 body item and 1.3 surface glaze item, by mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 20%, sodium feldspar 15%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 8%, porcelain stone 12%, talcum powder 4%.

[0147] According to item 1.1 preparation item, the firing temperature is 1235 °C and the firing cycle is 55 minutes to prepare the ceramic tile.

[0148] Comparative Example 6

[0149] All the parameters and preparation steps adopted in this comparative example are the same as those in Example 14, except that: the firing temperature is adjusted to 1100 °C, specifically as follows:

[0150] Using the body and surface glaze components of item 1.2 body item and 1.3 surface glaze item, by mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 15%, sodium feldspar 20%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 8%, porcelain stone 12%, talcum powder 4%.

[0151] According to item 1.1 preparation item, the firing temperature is 1100 °C and the firing cycle is 55 minutes to prepare the ceramic tile.

[0152] Comparative Example 7

[0153] All the parameters and preparation steps adopted in this comparative example are the same as those in Example 14, except that: the firing temperature is adjusted to 1250 °C, specifically as follows:

[0154] Using the body and surface glaze compositions of item 1.2 body item and 1.3 surface glaze item, by mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 15%, sodium feldspar 20%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 8%, porcelain stone 12%, talcum powder 4%.

[0155] According to item 1.1 preparation item, the firing temperature is 1250 °C and the firing cycle is 55 minutes to prepare the ceramic tile.

[0156] The ceramic tiles prepared in Example 3, Examples 14 to Comparative Example 7 were tested according to 2 Effect verification items and the results are as follows in the table:

[0157]

[0158]

[0159] From the test results in the above table, it can be seen that when comparing Example 14 with Example 3, the glaze surface of the ceramic tile obtained after optimizing the formulation is good without defects and has a silk-like simulated touch; in Examples 14 to Comparative Example 7, except for adding boron fiber, aluminum silicate fiber and strontium carbonate, different sintering temperatures were set correspondingly. From the test results, it can be seen that silk-like simulated touches were obtained in Examples 14 to 16. Comparative Examples 6 and 7 were fired at temperatures of 1100 °C and 1250 °C respectively, and the glaze surface had partial pinhole and prickly heat defects.

[0160] Example 17

[0161] All the parameters and preparation steps adopted in this example are the same as those in Example 14, and the difference is only that: the mass percentage content of strontium carbonate is reduced from 8% to 6%, and other components are adjusted correspondingly, specifically as follows:

[0162] Using the body and surface glaze compositions of item 1.2 body item and 1.3 surface glaze item, by mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 15%, sodium feldspar 22%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 6%, porcelain stone 12%, talcum powder 4%.

[0163] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 55 minutes to prepare the ceramic tile.

[0164] Example 18

[0165] All the parameters and preparation steps adopted in this example are the same as those in Example 17, and the difference is only that talcum powder is removed, and the contents of other components are adjusted correspondingly, specifically as follows:

[0166] Using the body and surface glaze components of item 1.2 body item and 1.3 surface glaze item, according to mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 6%, sodium feldspar 35%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 6%, porcelain stone 12%.

[0167] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 45 minutes to prepare the ceramic tile.

[0168] Example 19

[0169] All the parameters and preparation steps adopted in this example are the same as those in Example 18. The difference is that frit with a mass percentage of 16% is added, and the contents of other components are adjusted correspondingly as follows:

[0170] Using the body and surface glaze components of item 1.2 body item and 1.3 surface glaze item, according to mass percentage, the composition of the following silk texture glaze is adopted: boron fiber 8%, aluminum silicate fiber 4%, potassium feldspar 5%, sodium feldspar 20%, kaolin 12%, quartz 7%, zirconium silicate 5%, zinc oxide 5%, strontium carbonate 8%, porcelain stone 12%, frit 16%.

[0171] According to mass percentage, the chemical composition of the frit is: SiO2 50 - 60%, Al2O3 18.1 - 23.5%, BaO 5.6 - 7.2%, alkali metal oxides 4.7 - 7.3%, CaO 4.3 - 5.1%, SrO 4.0 - 4.7%, ZnO 3.4 - 4.4%.

[0172] According to item 1.1 preparation item, the firing temperature is 1150 °C and the firing cycle is 55 minutes to prepare the ceramic tile.

[0173] The ceramic tiles prepared in Example 14 and Examples 17 to 19 are carried out according to 2 Effect verification items for testing, and the results are as follows in the table:

[0174]

[0175] It can be seen from the test results in the above table that after further optimizing the components, the glaze surfaces of the above several examples all obtain a silk-like simulation touch. Comparing with Example 14, in Example 17, strontium carbonate is adjusted from 8% to 6% mainly in the mass percentage of the glaze formulation. Among them, the glaze surface of Example 14 has no defects and is better than that of Example 17; Example 18 adjusts the component types compared with Example 17, and the obtained glaze surface has no defects and shows better performance; comparing with Example 18, after introducing the frit with an initial melting temperature of 950 - 1030 °C in Example 19, all performances reach the best, and the stain resistance performance reaches grade 5.

[0176] The above are only the preferred embodiments of the present invention, and do not thus limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A glaze with a silk glaze texture, characterized in that, The suitable firing temperature of the glaze is 1130°C to 1235°C. By mass percentage, the raw materials of the glaze contain 5% to 10% of boron fiber and 2% to 4% of aluminum silicate fiber by mass percentage; The mass ratio of the boron fiber to the aluminum silicate fiber is 1:(0.3 to 0.8).

2. The glaze with a silk glaze texture as described in claim 1, characterized in that, The raw materials of the glaze contain 5% to 8% of boron fiber and 3% to 4% of aluminum silicate fiber by mass percentage.

3. A glaze with a silk glaze texture as described in claim 1, characterized in that, The raw materials of the glaze contain 4% to 8% of strontium carbonate by mass percentage.

4. The glaze with a silk glaze texture according to any one of claims 1 to 3, characterized in that The raw materials of the glaze contain 12% to 18% of frit, and the initial melting temperature of the frit is 950 to 1030°C.

5. A glaze having a silk glaze texture as claimed in claim 1, wherein The chemical composition of the raw materials of the glaze, by mass percentage, includes: loss on ignition 0.4 to 1.1%, SiO2 45.3 to 56.8%, Al2O3 11.4 to 17.6%, K2O 2.6 to 4.7%, Na2O 1.6 to 4.2%, ZnO 1.3 to 3.9%, CaO 4.7 to 8.9%, MgO 3.1 to 5.7%, SrO 3.5 to 5.9%; B2O3 4.2 to 6.9%.

6. A glaze having a silk glaze texture as described in claim 4, characterized in that, The mineral composition of the raw materials, by mass percentage, includes: frit 12% to 18%, boron fiber 5% to 10%, aluminum silicate fiber 2% to 4%, feldspar 25% to 45%, kaolin 8% to 14%, quartz 5% to 12%, zirconium silicate 3% to 5%, zinc oxide 2% to 5%, strontium carbonate 4% to 6%, porcelain stone 6% to 11%.

7. A ceramic tile, characterized in that, At least part of its surface is attached with a glaze layer made of the glaze with the texture of silk glaze surface as described in any one of claims 1 to 6.

8. A ceramic tile according to claim 7, characterized in that It further includes a printed pattern layer located above or below the glaze layer.

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