Jade-imitated ceramic tile with three-dimensional and glittering effects and preparation method of jade-imitated ceramic tile

Abstract

The invention discloses a jade-imitated ceramic tile with three-dimensional and glittering effects and a preparation method thereof. The jade-imitated ceramic tile comprises a green body, a ground coat layer, a soft light transparent glaze layer, a color ink layer, a bright ink layer and a matte transparent dry particle layer from bottom to top, wherein the soft light transparent glaze layer is formed by firing soft light transparent glaze, and the soft light transparent glaze comprises the following chemical components in percentage by weight: 12-15% of Al2O3, 42-48% of SiO2, 5-8% of CaO, 4-8% of MgO, 2-5% of K2O, 2-5% of Na2O, 6-9% of BaO, 3-5% of ZnO and 2-4% of SrO. The ceramic tile is soft in surface gloss, fine and smooth in touch, mild in texture and free of obvious glaze crystal spots; meanwhile, the light effect is transparent and is rich in stereoscopic impression and layering sense; and the jade has the visual effects of flash feeling and light metal luster feeling, and perfectly presents the detail characteristics of the highlight luster part of the jade.

Description

Technical Field

[0001] The invention belongs to the technical field of building ceramics, and in particular relates to a jade-like ceramic tile with three-dimensional and flashing effects and a preparation method thereof. Background Art

[0002] Imitation jade ceramic tiles are ceramic products with the texture of natural jade. Their design concept is derived from the beauty and texture of natural jade. As people's pursuit of quality of life continues to improve, imitation jade ceramic tiles are favored by the market for their unique aesthetic effects and excellent physical properties.

[0003] At present, most imitation jade ceramic tiles adjust the composition of the glaze to make the glaze have a luster, texture and soft touch similar to natural jade. However, most of these ceramic tiles only imitate the characteristics and touch of the jade surface, and have poor effect on the expression of details such as ice cracks, water lines, crystal patterns in the jade. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the above-mentioned prior art. To this end, the present invention proposes a jade-like ceramic tile with three-dimensional and flashing effects and a preparation method thereof. The surface gloss of the ceramic tile is soft, the touch is delicate, the texture is warm, and there is no obvious glaze crystal spot; at the same time, the bright light effect is integrated from the glaze layer to the surface of the ceramic tile, so that it presents a certain three-dimensional sense and layering; and has a visual effect of flashing and light metallic gloss, perfectly presenting the detailed features of the ice cracks, water lines, crystal lines and other high-gloss parts of the jade.

[0005] In order to solve the above technical problems, the first aspect of the present invention provides a jade-like ceramic tile, which comprises, from bottom to top, a body, a bottom glaze layer, a soft transparent glaze layer, a color ink layer, a bright ink layer and a matte transparent dry particle layer;

[0006] The soft light transparent glaze layer is formed by firing the soft light transparent glaze, and the chemical composition of the soft light transparent glaze includes, by weight percentage: Al2O3 12-15%, SiO2 42-48%, CaO 5-8%, MgO 4-8%, K2O 2-5%, Na2O 2-5%, BaO6-9%, ZnO 3-5%, and SrO 2-4%.

[0007] Specifically, the present invention arranges a soft light transparent glaze layer between the base glaze layer and the color ink layer, and obtains the soft luster and warm texture of jade through the soft light transparent glaze; and uses digital printing technology to print color ink and glossy ink on the surface of the soft light transparent glaze to form a special glossy visual effect with three-dimensional and layered sense; and by covering matte transparent dry particles, the gloss is integrated into it, the crystal spots of the soft light transparent glaze are eliminated, and the gloss of the glossy ink is manifested through the gaps of the surface dry particles; thereby obtaining a highly realistic jade-like imitation effect that is transparent, layered, three-dimensional, and sparkling, and has a certain light metallic luster.

[0008] When light shines on jade, part of the light will be reflected back, which is the luster of jade that people see; the other part of the light will enter the interior of the jade. Due to the ice cracks inside the jade, the light will be refracted when passing through the ice cracks, that is, the propagation direction of the light will change. These refracted light will continue to reflect and refract inside the jade, and finally pass through the surface of the jade again. Due to the existence of ice cracks, the propagation path of light inside the jade becomes more complicated, which is why jade has more details and layering.

[0009] The invention extracts the highlight part of the ice crack in the jade design, designs it into the effect network of the light ink channel, and prints it on the soft light transparent glaze layer through the ceramic digital printing equipment. After the light ink is fired at high temperature, it remains on the soft light transparent glaze to form a highlight texture. The light can be reflected through the highlight texture part, and can also enter the soft light transparent glaze layer through the highlight part to refract and scatter, forming a unique optical effect. Specifically, when the light ink is covered on the soft light transparent glaze, a series of optical phenomena will occur. On the one hand, the surface of the light ink and the soft light transparent glaze will reflect the light. When the light is irradiated on the surface, part of the light will be reflected back to form a bright luster. At the same time, due to the different refractive indices of the light ink layer and the soft light transparent glaze layer, the light will be refracted when passing through the light ink layer and the soft light transparent glaze layer, so that the propagation direction of the light changes, thereby affecting the path and intensity distribution of the light. Therefore, when the light ink is applied to the soft light transparent glaze, the light can pass through the soft light transparent glaze and refract and reflect in the bottom glaze layer, thereby producing a three-dimensional sense and a sense of hierarchy. On the other hand, a certain thickness of soft transparent glaze can provide more refraction and reflection opportunities, making the propagation of light more complex and enhancing the three-dimensional performance. Therefore, light can enter the soft transparent glaze layer and reflect and scatter inside the glaze layer, thus creating a three-dimensional sense, layering and transparency.

[0010] At the same time, the chemical composition of the soft light transparent glaze of the present invention contains a higher content of SiO2, which is conducive to the formation of more glass phases between the bright ink and the glaze to present a high-brightness effect; and contains higher alkaline earth metal oxides (MgO, CaO) and alkali metal oxides (K2O, Na2O) to improve the high-temperature fluidity of the glaze, making the glaze surface after firing more delicate and smooth.

[0011] In some embodiments of the present invention, the raw material components of the soft transparent glaze include, by weight: 28-35 parts of potassium feldspar, 10-20 parts of sodium feldspar, 5-10 parts of washed soil, 0-5 parts of calcined kaolin, 0-4 parts of aluminum oxide, 2-5 parts of quartz, 1-5 parts of wollastonite, 3-8 parts of burned talc, 15-20 parts of dolomite, 1-5 parts of strontium carbonate, 5-10 parts of barium carbonate, and 2-5 parts of calcined zinc oxide.

[0012] In some embodiments of the present invention, the raw material components of the base glaze layer include, by weight: 40-50 parts of potassium feldspar, 0-5 parts of sodium feldspar, 5-15 parts of nepheline, 5-10 parts of washed soil, 10-15 parts of quartz, 10-20 parts of aluminum oxide, 3-8 parts of wollastonite, and 10-15 parts of zirconium silicate.

[0013] Specifically, the initial melting temperature of the base glaze is too low, the pores on the glaze are closed too early, and the gas generated in the body is not smoothly exhausted when the oxidation is incomplete. During the continuous exhaust process, the glaze layer will be lifted up, resulting in defects similar to prickly heat. The base glaze layer of the present invention uses potassium feldspar with a wide firing range and a high initial melting temperature as the main flux raw material, and utilizes the high initial melting temperature of potassium feldspar (1150-1200°C) to completely exhaust the gas in the body, thereby reducing the generation of prickly heat on the glaze surface and further improving the glaze effect of the jade-like ceramic tile.

[0014] In some embodiments of the present invention, the raw material for preparing the matte transparent dry particle layer is a matte transparent dry particle suspension, and the matte transparent dry particle suspension comprises matte transparent dry particles and a suspending agent in a mass ratio of 1:(1.5-2.5).

[0015] Specifically, matte transparent dry particles are covered on soft light transparent glaze and glossy ink, which can effectively reduce the gloss of soft light transparent glaze, eliminate the crystal spots on soft light transparent glaze, and make the gloss of the glaze printed with glossy ink and other positions form a greater contrast. At the same time, matte transparent dry particles can better protect the color ink layer and the glossy ink layer, and improve the wear resistance of the ceramic tile surface. Moreover, after high-temperature firing, the highlight parts formed by the glossy ink can also pass through the matte transparent dry particles to show a glossy effect.

[0016] In some embodiments of the present invention, the chemical composition of the matte transparent dry particles includes, by weight percentage: Al2O3 17-20%, SiO2 52-58%, CaO 3-5%, MgO 1-3%, K2O 3-5%, Na2O 1-3%, BaO 5-8%, ZnO 2-5%, and SrO 2-5%.

[0017] In some embodiments of the present invention, the raw material components of the suspension agent include, by weight: 2-5 parts of thickener, 2-5 parts of organic ammonia, 0.5-2.5 parts of bentonite, 0.3-0.6 parts of defoamer, 1-3 parts of dispersant, and 80-100 parts of water. The suspension agent has high cohesiveness, so that the part printed with glossy ink cannot be peeled off from the matte transparent dry particles to form a concave-convex texture, but forms a flat texture.

[0018] In some embodiments of the present invention, the texture of the glossy ink layer is extracted from a highlight portion of jade, and the texture includes at least one of water lines, ice cracks, and crystal lines.

[0019] In some embodiments of the present invention, the glossy ink used in the glossy ink layer is glossy ink K3019 produced by Shandong Guoci Kanglitai New Materials Technology Co., Ltd.

[0020] The second aspect of the present invention provides a method for preparing the above-mentioned jade-like ceramic tile, comprising the following steps:

[0021] The base glaze, soft transparent glaze, inkjet color ink and glossy ink, and matte transparent dry particle suspension are applied on the body in sequence to form a base glaze layer, a soft transparent glaze layer, a color ink layer, a glossy ink layer, and a matte transparent dry particle layer in sequence. After drying, the ceramic brick is fired in a kiln to obtain the ceramic tile.

[0022] In some embodiments of the present invention, the specific gravity of the base glaze is 1.85-1.95 g / cm 3 .

[0023] In some embodiments of the present invention, the glaze amount of the base glaze is 400-800 g / m 2 .

[0024] In some embodiments of the present invention, the specific gravity of the soft light transparent glaze is 1.85-1.95 g / cm 3 .

[0025] In some embodiments of the present invention, the glaze amount of the soft transparent glaze is 300-600g / m 2 .

[0026] In some embodiments of the present invention, the maximum printing volume of the glossy ink is 35-50 g / m2 .

[0027] In some embodiments of the present invention, the application amount of the matte transparent dry particle suspension is 200-400 g / m 2 .

[0028] In some embodiments of the present invention, the flow rate of the matte transparent dry particle suspension is 38-40 seconds per coating.

[0029] In some embodiments of the present invention, the maximum sintering temperature is 1180-1230°C.

[0030] In some embodiments of the present invention, the firing cycle is 40-80 minutes.

[0031] Compared with the prior art, the above technical solution of the present invention has at least the following technical effects or advantages:

[0032] (1) The jade-like ceramic tile of the present invention is provided with a body, a base glaze layer, a soft transparent glaze layer, a color ink layer, a bright ink layer and a matte transparent dry particle layer from bottom to top. Through the specific layer structure setting, a highly realistic jade-like effect with transparency, rich layering, three-dimensionality and glittering feeling and a certain light metallic luster is obtained.

[0033] (2) The present invention controls the chemical composition of the soft light transparent glaze, on the one hand, increases the content of SiO2 to enhance the highlight effect of the glossy ink; on the other hand, appropriately increases the amount of flux raw materials to improve the delicate and smooth effect of the glaze surface. At the same time, when the glossy ink is covered on the soft light transparent glaze, when light passes through the glossy ink layer and the soft light transparent glaze layer, a series of optical phenomena such as reflection, refraction and scattering will occur inside the glaze layer, thereby producing a jade-like effect with a three-dimensional sense, a sense of layering and a sense of transparency.

[0034] (3) The present invention uses Photoshop to extract the texture of the highlight part in the jade design, designs it into an effect network of bright ink channels, and prints it on the soft light transparent glaze layer through ceramic digital printing. After the bright ink is fired at a high temperature, it remains on the soft light transparent glaze to form a highlight texture. The light can be reflected by the highlight texture part, and can also pass through the highlight part into the soft light transparent glaze layer to be refracted and scattered, forming a unique optical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a physical picture of the jade-like ceramic tile prepared in Example 1;

[0036] Figure 2 This is a physical picture of the jade-like ceramic tile prepared in Example 2;

[0037] Figure 3This is a physical picture of the jade-like ceramic tile prepared in Example 3;

[0038] Figure 4 This is a physical picture of the ceramic tile prepared in Comparative Example 1;

[0039] Figure 5 This is a physical picture of the ceramic tile prepared in Comparative Example 2;

[0040] Figure 6 This is a physical picture of the ceramic tile prepared in Comparative Example 3;

[0041] Figure 7 This is a physical picture of the ceramic tile prepared in Comparative Example 4. DETAILED DESCRIPTION

[0042] The present invention is described in detail below in conjunction with the examples, so that the technical personnel of the relevant technical field can understand the present invention. It is necessary to point out here that the examples are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. The non-essential improvements and adjustments made to the present invention by the skilled person in the relevant field according to the above invention content should still belong to the scope of protection of the present invention. At the same time, the raw materials mentioned below that are not described in detail are all commercially available products; the process steps or preparation methods not mentioned in detail are all process steps or preparation methods known to those skilled in the art.

[0043] Example 1

[0044] A jade-like ceramic tile comprises, from bottom to top, a body, a base glaze layer, a soft transparent glaze layer, a color ink layer, a glossy ink layer and a matte transparent dry particle layer.

[0045] Among them: the raw material components of the bottom glaze layer include, by weight: 49 parts of potassium feldspar, 5 parts of sodium feldspar, 12 parts of nepheline, 9 parts of washed soil, 12 parts of quartz, 14 parts of aluminum oxide, 6 parts of wollastonite, and 10 parts of zirconium silicate.

[0046] The chemical composition of the soft light transparent glaze includes, by weight percentage: Al2O3 14.4%, SiO2 43.71%, CaO6.04%, MgO 4.02%, K2O 3.13%, Na2O 3.13%, BaO 6.85%, ZnO 3.88%, SrO 2.7%. The raw material components of the soft light transparent glaze include, by weight: 30 parts of potassium feldspar, 20 parts of sodium feldspar, 7 parts of washed soil, 2 parts of calcined kaolin, 2 parts of aluminum oxide, 3 parts of quartz, 3 parts of wollastonite, 3 parts of burned talc, 15 parts of dolomite, 4 parts of strontium carbonate, 9 parts of barium carbonate, and 4 parts of calcined zinc oxide.

[0047] The raw materials for preparing the matte dry particle layer include matte transparent dry particles and suspending agents, and the mass ratio of matte transparent dry particles to suspending agents is 1:2. The chemical composition of the matte transparent dry particles includes, by weight percentage: Al2O3 19.13%, SiO2 54.61%, CaO 4.38%, MgO 1.02%, K2O 4.77%, Na2O 2.45%, BaO 5.44%, ZnO 3.56%, SrO 3.82%. The raw material components of the suspending agent include, by weight: 3 parts of thickener ASE, 3 parts of organic ammonia, 1 part of bentonite, 0.5 parts of defoamer BYK-065, 1.5 parts of dispersant BYK-9132, and 91 parts of water.

[0048] The method for preparing the above-mentioned jade-like ceramic tile comprises the following steps:

[0049] (1) The raw materials for preparing the base glaze layer were weighed according to the mass ratio, and water was added for ball milling (the mass ratio of the material to the water was 100:40) to obtain the base glaze slurry (specific gravity of 1.9 g / cm 3 ), the base glaze slurry is poured onto the upper surface of the body through the bell glaze pouring device (the glaze amount is 400-800g / m 2 ), forming a bottom glaze layer;

[0050] (2) Weigh the raw materials for preparing soft light transparent glaze according to the mass ratio, add water and perform ball milling (the mass ratio of raw materials to water is 100:40) to obtain soft light transparent glaze slurry (specific gravity is 1.9 g / cm 3 ), the soft transparent glaze slurry is poured onto the upper surface of the base glaze layer through the bell glaze pouring device (the glazing amount is 500g / m 2 ), forming a soft and transparent glaze layer;

[0051] (3) printing color ink on the surface of the soft light transparent glaze layer by a digital inkjet machine, designing a pattern of jade to form a color ink layer;

[0052] (4) The texture of the bright part of the ice crack in the jade design is extracted through Photoshop, and it is designed into an effect network of the bright ink channel. The digital inkjet machine prints the bright ink on the surface of the soft light transparent glaze layer (the maximum print volume is 40g / m 2 ), forming a glossy ink layer;

[0053] (5) Matt transparent dry particles and suspending agent are weighed according to the mass ratio, mixed, and mat transparent dry particle suspension is obtained (coating -4 cups flow rate 38 seconds); then it is sprayed on the surface of the glossy ink and soft light transparent glaze layer (glaze application amount is 300g / m 2 ), forming a matte transparent dry particle layer; after drying, into the kiln at a maximum temperature of 1200 ℃ firing, firing cycle 60min, the imitation jade ceramic tiles of this embodiment, the product physical effect diagram see Figure 1 .

[0054] Example 2

[0055] A jade-like ceramic tile comprises, from bottom to top, a body, a base glaze layer, a soft transparent glaze layer, a color ink layer, a glossy ink layer and a matte transparent dry particle layer.

[0056] Among them: the raw material components of the bottom glaze layer include, by weight: 45 parts of potassium feldspar, 2 parts of sodium feldspar, 15 parts of nepheline, 10 parts of washed soil, 10 parts of quartz, 13 parts of aluminum oxide, 5 parts of wollastonite, and 12 parts of zirconium silicate.

[0057] The chemical composition of the soft light transparent glaze includes, by weight percentage: Al2O3 12.27%, SiO2 42.98%, CaO6.70%, MgO 5.42%, K2O 3.00%, Na2O 2.48%, BaO 6.59%, ZnO 3.74%, SrO 2.60%. The raw material components of the soft light transparent glaze include, by weight: 30 parts of potassium feldspar, 15 parts of sodium feldspar, 8 parts of water-washed soil, 1 part of aluminum oxide, 5 parts of quartz, 4 parts of wollastonite, 5 parts of burned talc, 18 parts of dolomite, 4 parts of strontium carbonate, 6 parts of barium carbonate, and 4 parts of calcined zinc oxide.

[0058] The raw materials for preparing the matte dry particle layer include matte transparent dry particles and a suspending agent, and the mass ratio of the matte transparent dry particles to the suspending agent is 1:1.5. The chemical composition of the matte transparent dry particles includes, by weight percentage: Al2O3 19.13%, SiO2 54.61%, CaO 4.38%, MgO 1.02%, K2O 4.77%, Na2O 2.45%, BaO 5.44%, ZnO 3.56%, SrO 3.82%. The raw material components of the suspending agent include, by weight: 3 parts of thickener ASE, 3 parts of organic ammonia, 1 part of bentonite, 0.5 parts of defoamer BYK-065, 1.5 parts of dispersant BYK-9132, and 91 parts of water.

[0059] The method for preparing the above-mentioned jade-like ceramic tile comprises the following steps:

[0060] (1) The raw materials for preparing the base glaze layer were weighed according to the mass ratio, and water was added for ball milling (the mass ratio of the material to water was 100:40) to obtain the base glaze slurry (specific gravity was 1.85 g / cm 3 ), the base glaze slurry is poured onto the upper surface of the body through the bell glaze pouring device (the glaze amount is 500g / m 2 ), forming a bottom glaze layer;

[0061] (2) Weigh the raw materials for preparing soft light transparent glaze according to the mass ratio, add water and perform ball milling (the mass ratio of raw materials to water is 100:40) to obtain soft light transparent glaze slurry (specific gravity is 1.85 g / cm 3), the soft transparent glaze slurry is poured onto the upper surface of the base glaze layer through the bell glaze pouring device (the glazing amount is 400g / m 2 ), forming a soft and transparent glaze layer;

[0062] (3) printing color ink on the surface of the soft light transparent glaze layer by a digital inkjet machine, designing a pattern of jade to form a color ink layer;

[0063] (4) The texture of ice cracks and waterline highlights in the jade design is extracted through Photoshop, and designed into a glossy ink channel effect network. The glossy ink is printed on the surface of the soft transparent glaze layer by a digital inkjet machine (maximum print volume 45g / m 2 ), forming a glossy ink layer;

[0064] (5) Weigh the matte transparent dry particles and the suspending agent according to the mass ratio, mix them, and obtain the matte transparent dry particle suspension (apply -4 cups at a flow rate of 40 seconds); then apply it to the surface of the glossy ink and the soft light transparent glaze layer (the glaze amount is 200g / m 2 ), forming a matte transparent dry particle layer; after drying, into the kiln at a maximum temperature of 1180 ℃ firing, firing cycle 70min, the imitation jade ceramic tiles of this embodiment, the product physical effect diagram see Figure 2 .

[0065] Example 3

[0066] A jade-like ceramic tile comprises, from bottom to top, a body, a base glaze layer, a soft transparent glaze layer, a color ink layer, a glossy ink layer and a matte transparent dry particle layer.

[0067] Among them: the raw material components of the bottom glaze layer include, by weight: 43 parts of potassium feldspar, 15 parts of nepheline, 6 parts of washed soil, 15 parts of quartz, 15 parts of aluminum oxide, 8 parts of wollastonite, and 15 parts of zirconium silicate.

[0068] The chemical composition of the soft light transparent glaze includes, by weight percentage: Al2O3 13.18%, SiO2 42.98%, CaO6.58%, MgO 5.32%, K2O 3.14%, Na2O 2.39%, BaO 7.18%, ZnO 3.67%, SrO 2.55%. The raw material components of the soft light transparent glaze include, by weight: 32 parts of potassium feldspar, 14 parts of sodium feldspar, 8 parts of washed soil, 2 parts of calcined kaolin, 2 parts of aluminum oxide, 5 parts of quartz, 3 parts of wollastonite, 6 parts of burned talc, 14 parts of dolomite, 4 parts of strontium carbonate, 10 parts of barium carbonate, and 4 parts of calcined zinc oxide.

[0069] The raw materials for preparing the matte dry particle layer include matte transparent dry particles and suspending agents, and the mass ratio of matte transparent dry particles to suspending agents is 1:2.5. The chemical composition of the matte transparent dry particles includes, by weight percentage: Al2O3 19.13%, SiO2 54.61%, CaO 4.38%, MgO 1.02%, K2O 4.77%, Na2O 2.45%, BaO 5.44%, ZnO 3.56%, SrO 3.82%. The raw material components of the suspending agent include, by weight: 3 parts of thickener ASE, 3 parts of organic ammonia, 1 part of bentonite, 0.5 parts of defoamer BYK-065, 1.5 parts of dispersant BYK-9132, and 91 parts of water.

[0070] The method for preparing the above-mentioned jade-like ceramic tile comprises the following steps:

[0071] (1) The raw materials for preparing the base glaze layer were weighed according to the mass ratio, and water was added for ball milling (the mass ratio of the material to the water was 100:40) to obtain the base glaze slurry (specific gravity of 1.95 g / cm 3 ), the base glaze slurry is poured onto the upper surface of the body through the bell glaze pouring device (the glaze amount is 800g / m 2 ), forming a bottom glaze layer;

[0072] (2) Weigh the raw materials for preparing soft light transparent glaze according to the mass ratio, add water and perform ball milling (the mass ratio of raw materials to water is 100:40) to obtain soft light transparent glaze slurry (specific gravity is 1.95 g / cm 3 ), the soft transparent glaze slurry is applied to the upper surface of the base glaze layer through the bell glaze device (the glaze amount is 600g / m 2 ), forming a soft and transparent glaze layer;

[0073] (3) printing color ink on the surface of the soft light transparent glaze layer by a digital inkjet machine, designing a pattern of jade to form a color ink layer;

[0074] (4) Extract the texture of the crystal highlight part in the jade design through Photoshop, and design it into the effect network of the light ink channel. Print the light ink on the surface of the soft light transparent glaze layer with a digital inkjet machine (maximum printing volume 50g / m 2 ), forming a glossy ink layer;

[0075] (5) Matt transparent dry particles and suspending agent are weighed and mixed according to the mass ratio to obtain a mat transparent dry particle suspension (applying -4 cups at a flow rate of 39 seconds); then the suspension is applied to the surface of the glossy ink and soft transparent glaze layer (the glaze amount is 400g / m 2 ), forming a matte transparent dry particle layer; after drying, into the kiln at a maximum temperature of 1230 ℃ firing, firing cycle 80min, the imitation jade ceramic tiles of this embodiment, the product physical effect diagram see Figure 3 .

[0076] Comparative Example 1

[0077] The difference between Comparative Example 1 and Example 1 is that the chemical composition and raw material components of the soft light transparent glaze in Comparative Example 1 are different; at the same time, the textures of the color ink and the glossy ink are different from those in Example 1.

[0078] The chemical composition of the soft light transparent glaze of Comparative Example 1 includes, by weight percentage: Al2O3 13.15%, SiO2 40.59%, CaO 6.18%, MgO 7.45%, K2O 1.08%, Na2O 3.08%, BaO 10.65%, ZnO 3.88%, SrO 2.02%. The raw material components of the soft light transparent glaze of Comparative Example 1 include, by weight: 10 parts of potassium feldspar, 25 parts of sodium feldspar, 8 parts of washed soil, 2 parts of calcined kaolin, 3 parts of aluminum oxide, 6 parts of wollastonite, 15 parts of burned talc, 12 parts of dolomite, 3 parts of strontium carbonate, 14 parts of barium carbonate, and 4 parts of calcined zinc oxide.

[0079] The actual picture of the ceramic tile prepared in Comparative Example 1 is as follows Figure 4 shown.

[0080] Comparative Example 2

[0081] The difference between Comparative Example 2 and Example 1 is that the ordinary water-based protective glaze used in Comparative Example 2 replaces the matte transparent dry particle suspension in Example 1; at the same time, the texture of the color ink and the glossy ink is different from that in Example 1.

[0082] The chemical composition of the common water-based protective glaze of Comparative Example 2 includes, by weight percentage: Al2O3 15.14%, SiO2 47.01%, CaO 2.98%, MgO 1.04%, K2O 3.31%, Na2O 2.93%, BaO 15.47%, ZnO 3.25%. The specific gravity of the common water-based protective glaze is 1.45 g / cm 3 , coating-4 cup flow rate 11.32 seconds.

[0083] The actual picture of the ceramic tile prepared in Comparative Example 2 is as follows Figure 5 shown.

[0084] Comparative Example 3

[0085] The difference between Comparative Example 3 and Example 1 is that the ceramic tile of Comparative Example 3 does not include a soft transparent glaze layer, that is, from bottom to top it includes a body, a base glaze layer, a color ink layer, a glossy ink layer and a matte transparent dry particle layer; at the same time, the texture of the color ink and the glossy ink is different from that of Example 1.

[0086] The actual picture of the ceramic tile prepared in Comparative Example 3 is as follows Figure 6 shown.

[0087] Comparative Example 4

[0088] The difference between Comparative Example 4 and Example 1 is that in Comparative Example 4, the soft light transparent glaze of Example 1 is replaced with a soft light opalescent glaze; at the same time, the textures of the color ink and the glossy ink are different from those in Example 1.

[0089] The chemical composition of the soft light opalescent glaze of Comparative Example 4 includes, by weight percentage: Al2O3 13.20%, SiO2 43.16%, CaO 5.41%, MgO 3.60%, K2O 2.98%, Na2O 2.86%, BaO 6.12%, ZnO 3.47%, SrO2.41%, and ZrO2 6.71%. The raw material components of the soft light opalescent glaze of Comparative Example 4 include, by weight: 30 parts of potassium feldspar, 20 parts of sodium feldspar, 7 parts of water-washed soil, 2 parts of calcined kaolin, 2 parts of aluminum oxide, 3 parts of quartz, 3 parts of wollastonite, 3 parts of burned talc, 15 parts of dolomite, 4 parts of strontium carbonate, 9 parts of barium carbonate, 4 parts of calcined zinc oxide, and 10 parts of zirconium silicate.

[0090] The actual picture of the ceramic tile prepared in Comparative Example 4 is as follows Figure 7 shown.

[0091] Performance Testing

[0092] The glossiness of the bright and non-bright parts of the ceramic tile samples prepared in Examples 1-3 and Comparative Examples 1-4 were tested respectively, and the visual effect and tactile feel of the glaze were recorded. The results are shown in Table 1. The glossiness test was performed using a gloss meter.

[0093] Table 1: Performance comparison of samples obtained in Examples 1-3 and Comparative Examples 1-4

[0094]

[0095] From Table 1 and Figure 1-3 It can be seen that the ceramic tile samples prepared in Examples 1-3 have a glossiness of 25-32° in the bright parts and 10-14° in the non-bright parts, and the glaze has a soft gloss, delicate touch, and warm texture, without obvious glaze crystal spots; the bright effect of the glaze is transparent, rich in layering, three-dimensionality and sparkle, and has a certain light metallic luster, with a realistic imitation jade effect.

[0096] Compared with Example 1, the chemical composition of the soft light transparent glaze of Comparative Example 1 and the content of SiO2 in the raw material components are lower, the glaze surface has poor light effect, the layering, three-dimensional and sparkling sense are not strong, and has a certain light metallic luster, see Figure 4 .

[0097] Compared with Example 1, Comparative Example 2 uses ordinary water-based protective glaze to replace the matte transparent dry particle suspension of Example 1. The faster flow rate makes the protective glaze peelable on the glossy ink, resulting in a concave texture on the glaze surface and a decrease in flatness. Figure 5 .

[0098] Compared with Example 1, the ceramic tile of Comparative Example 3 does not include a soft transparent glaze layer, the glaze surface is rough, does not have a soft touch, and has a poor gloss effect, no layering, three-dimensional sense, sparkle and light metallic luster, see Figure 6 .

[0099] Compared with Example 1, Comparative Example 4 replaces the soft light transparent glaze of Example 1 with a soft light opalescent glaze. Due to its non-soft light transparent or semi-soft light transparent nature, the opalescent glaze scatters light, making the light propagation in the glaze layer more uniform, thereby greatly weakening the light effect, as well as the sense of transparency, three-dimensionality and layering. Figure 7 .

[0100] For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, without having to go through creative labor. Therefore, simple improvements made to the present invention by those skilled in the art based on the disclosure of the present invention should be within the protection scope of the present invention. The above embodiments are preferred embodiments of the present invention, and all processes similar to the present invention and equivalent changes made should belong to the protection scope of the present invention.

Claims

1. A jade-like ceramic tile, characterized in that: From bottom to top, it includes body, base glaze layer, soft transparent glaze layer, color ink layer, glossy ink layer and matte transparent dry particle layer; The soft light transparent glaze layer is formed by firing the soft light transparent glaze, and the chemical composition of the soft light transparent glaze includes, by weight percentage: Al2O3 12-15%, SiO2 42-48%, CaO 5-8%, MgO 4-8%, K2O 2-5%, Na2O 2-5%, BaO6-9%, ZnO 3-5%, and SrO 2-4%.

2. The jade-like ceramic tile according to claim 1, characterized in that: The raw material components of the base glaze layer include, by weight: 40-50 parts of potassium feldspar, 0-5 parts of sodium feldspar, 5-15 parts of nepheline, 5-10 parts of washed soil, 10-15 parts of quartz, 10-20 parts of aluminum oxide, 3-8 parts of wollastonite, and 10-15 parts of zirconium silicate.

3. The jade-like ceramic tile according to claim 1, characterized in that: The raw material for preparing the matte transparent dry particle layer is a matte transparent dry particle suspension, and the matte transparent dry particle suspension comprises matte transparent dry particles and a suspending agent in a mass ratio of 1: (1.5-2.5).

4. The jade-like ceramic tile according to claim 3, characterized in that: The chemical composition of the matte transparent dry particles includes, by weight percentage, 17-20% Al2O3, 52-58% SiO2, 3-5% CaO, 1-3% MgO, 3-5% K2O, 1-3% Na2O, 5-8% BaO, 2-5% ZnO and 2-5% SrO. And / or, the raw material components of the suspending agent include, by weight: 2-5 parts of thickener, 2-5 parts of organic ammonia, 0.5-2.5 parts of bentonite, 0.3-0.6 parts of defoamer, 1-3 parts of dispersant, and 80-100 parts of water.

5. The jade-like ceramic tile according to claim 1, characterized in that: The texture of the glossy ink layer is extracted from the highlight part of the jade, and the texture includes at least one of water lines, ice cracks, and crystal lines.

6. A method for preparing the jade-like ceramic tile according to any one of claims 1 to 5, characterized in that: The following steps are involved: The base glaze, soft transparent glaze, inkjet color ink and glossy ink, and matte transparent dry particle suspension are applied on the body in sequence to form a base glaze layer, a soft transparent glaze layer, a color ink layer, a glossy ink layer, and a matte transparent dry particle layer in sequence. After drying, the ceramic brick is fired in a kiln to obtain the ceramic tile.

7. The method for preparing the jade-like ceramic tile according to claim 6, characterized in that: The specific gravity of the base glaze is 1.85-1.95 g / cm 3 ; and / or, the glaze amount of the base glaze is 400-800g / m 2 .

8. The method for preparing the jade-like ceramic tile according to claim 6, characterized in that: The specific gravity of the soft transparent glaze is 1.85-1.95g / cm 3 ; and / or, the glaze amount of the soft transparent glaze is 300-600g / m 2 .

9. The method for preparing the jade-like ceramic tile according to claim 6, characterized in that: The maximum printing volume of the glossy ink is 50-75g / m 2 ; and / or, the application amount of the matte transparent dry particle suspension is 200-400g / m 2 .

10. The method for preparing the jade-like ceramic tile according to claim 6, characterized in that: The maximum sintering temperature is 1180-1230° C.; and / or the sintering period is 40-80 minutes.

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