A skin-warming glazed porcelain tile and a method for manufacturing the same

Abstract

The application provides a warm jade skin glazed porcelain tile and a preparation method thereof. The warm jade skin glazed porcelain tile comprises, from bottom to top, a body layer, a bottom glaze layer and a warm jade skin glaze layer; the preparation raw materials of the bottom glaze layer comprise the following components: super white zirconium silicate, kaolin, quartz powder, nepheline powder, wollastonite, sodium feldspar, calcined talc, aluminum oxide and zirconium oxide; the preparation raw materials of the warm jade skin glaze layer comprise the following components: potassium feldspar, sodium feldspar, kaolin, burned soil, dolomite, high barium clinker, burned talc, barium carbonate and zinc oxide. The application forms the bottom glaze layer and the warm jade skin glaze layer with specific formula components on the surface of the body layer, and the two layers cooperate with each other, so that the gloss of the warm jade skin glazed porcelain tile is controlled between 15-25 degrees, the tile surface effect is further optimized while the brightness is ensured, and the surface of the porcelain tile can present a silk luster or a flash point luster.

Description

Technical Field

[0001] This invention relates to the field of building ceramics technology, and in particular to a warm jade-skin glaze ceramic tile and its preparation method. Background Technology

[0002] Currently, tiles with a gloss level of at least 55 degrees are called glossy tiles. Glossy tiles have a smooth surface and rich colors. However, excessive gloss in glossy tiles can cause strong reflections, leading to excessive visual stimulation and sensory oppression.

[0003] Skin-like glazes typically have a gloss level of around 25-35 degrees, offering a more delicate and moisturizing texture and visual appeal compared to glossy tiles, providing a soft and comfortable visual experience. However, existing skin-like glazes are difficult to control in terms of gloss level and are relatively expensive. During actual production, due to process factors, common problems include pinholes, weld pits, insufficient wear resistance, concave glaze, poor tile shape, acid and alkali resistance issues, and rod marks. Furthermore, when the gloss level is between 25-35 degrees, it is difficult to simultaneously guarantee the texture and surface quality of skin-like glaze tiles during production, resulting in inconsistent quality among skin-like glaze tiles currently sold on the market.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] One of the objectives of this invention is to provide a warm jade skin glaze ceramic tile, which controls the gloss level between 15 and 25 degrees, different from the surface effect of skin glaze. This product optimizes the surface effect while ensuring brightness.

[0006] The second objective of this invention is to provide a method for preparing a warm jade-skin glaze ceramic tile. This method improves the existing production process and restructures the existing glaze formula, resulting in a more delicate and moisturizing feel. The ceramic tile products obtained by the method of this invention can exhibit a silky or sparkling luster, providing a soft, quiet, and comfortable visual experience, as well as a simple, natural, and elegant artistic style.

[0007] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0008] In a first aspect, the present invention provides a warm jade skin glaze ceramic tile, which comprises, from bottom to top, a body layer, a base glaze layer and a warm jade skin glaze layer.

[0009] The raw materials for preparing the base glaze layer include the following components: ultra-white zirconium silicate, kaolin, quartz powder, nepheline powder, wollastonite, albite, calcined talc, alumina, and zirconium oxide;

[0010] The raw materials for preparing the warm jade skin glaze layer include the following components: potassium feldspar, sodium feldspar, kaolin, calcined clay, dolomite, high barium frit, calcined talc, barium carbonate, and zinc oxide.

[0011] In this invention, a base glaze layer and a warm jade skin glaze layer with a specific formula are formed on the surface of the body layer. The two work together to control the gloss of the warm jade skin glaze tile between 15 and 25 degrees. Unlike the existing skin glaze tile surface effect, while ensuring brightness, the tile surface effect is further optimized, making the tile feel more delicate and moist, and able to present a silky or sparkling luster, giving people a soft, quiet and comfortable visual experience, with simple, natural and elegant artistic characteristics.

[0012] Preferably, the raw materials for preparing the base glaze layer include the following components by weight:

[0013] The composition includes 16-18 parts of ultra-white zirconium silicate, 7-8 parts of kaolin, 18-20 parts of quartz powder, 36-38 parts of nepheline powder, 4-5 parts of wollastonite, 10-11 parts of albite, 1-3 parts of calcined talc, 2-4 parts of alumina, and 0.1-0.5 parts of zirconium oxide.

[0014] In the raw materials for preparing the base glaze layer, the content of ultra-white zirconium silicate is 16 to 18 parts, for example, it can be 16 parts, 16.2 parts, 16.5 parts, 16.8 parts, 17 parts, 17.2 parts, 17.5 parts, 17.8 parts, 18 parts, etc.

[0015] In the raw materials for preparing the base glaze layer, the content of kaolin is 7 to 8 parts, for example, it can be 7 parts, 7.2 parts, 7.4 parts, 7.6 parts, 7.8 parts, 8 parts, etc.

[0016] In the raw materials for preparing the base glaze layer, the content of quartz powder is 18 to 20 parts, for example, it can be 18 parts, 18.2 parts, 18.5 parts, 18.8 parts, 19 parts, 19.2 parts, 19.5 parts, 19.8 parts, 20 parts, etc.

[0017] In the raw materials for preparing the base glaze layer, the content of nepheline powder is 36 to 38 parts, for example, it can be 36 parts, 36.2 parts, 36.5 parts, 36.8 parts, 37 parts, 37.2 parts, 37.5 parts, 37.8 parts, 38 parts, etc.

[0018] In the raw materials for preparing the base glaze layer, the content of wollastonite is 4 to 5 parts, for example, it can be 4 parts, 4.2 parts, 4.4 parts, 4.6 parts, 4.8 parts, 5 parts, etc.

[0019] In the raw materials for preparing the base glaze layer, the content of albite is 10 to 11 parts, for example, it can be 10 parts, 10.2 parts, 10.4 parts, 10.6 parts, 10.8 parts, 11 parts, etc.

[0020] In the raw materials for preparing the base glaze layer, the content of calcined talc is 1 to 3 parts, for example, it can be 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2 parts, 2.2 parts, 2.5 parts, 2.8 parts, 3 parts, etc.

[0021] In the raw materials for preparing the base glaze layer, the content of alumina is 2 to 4 parts, for example, it can be 2 parts, 2.2 parts, 2.4 parts, 2.6 parts, 2.8 parts, 3 parts, 3.2 parts, 3.4 parts, 3.6 parts, 3.8 parts, 4 parts, etc.

[0022] In the raw materials for preparing the base glaze layer, the content of zirconium oxide is 0.1 to 0.5 parts, for example, it can be 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts, 0.5 parts, etc.

[0023] Preferably, the raw materials for preparing the base glaze layer also include hexamethylenetetramine and / or sodium carboxymethyl cellulose.

[0024] Preferably, the amount of hexamethylenetetramer added is 0.1 to 0.5 parts, for example, it can be 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts, 0.5 parts, etc.

[0025] Preferably, the amount of sodium carboxymethyl cellulose added is 0.05 to 0.3 parts, for example, 0.05 parts, 0.08 parts, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, etc.

[0026] Preferably, the raw materials for preparing the warm jade skin glaze layer include the following components by weight:

[0027] Potassium feldspar 34–36 parts, sodium feldspar 18–22 parts, kaolin 6–10 parts, calcined clay 4–6 parts, dolomite 11–13 parts, high-barium frit 6–8 parts, calcined talc 2–4 parts, barium carbonate 5–7 parts, and zinc oxide 3–5 parts.

[0028] In the raw materials for preparing the warm jade skin glaze, the content of potassium feldspar is 34 to 36 parts, for example, it can be 34 parts, 34.2 parts, 34.5 parts, 34.8 parts, 35 parts, 35.2 parts, 35.5 parts, 35.8 parts, 36 parts, etc.

[0029] In the raw materials for preparing the warm jade skin glaze, the content of albite is 18 to 22 parts, for example, it can be 18 parts, 18.2 parts, 18.5 parts, 18.8 parts, 19 parts, 20.2 parts, 20.5 parts, 20.8 parts, 21 parts, 21.2 parts, 21.5 parts, 21.8 parts, 22 parts, etc.

[0030] In the raw materials for preparing the warm jade skin glaze, the content of kaolin is 6 to 10 parts, for example, it can be 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, etc.

[0031] In the raw materials for preparing the warm jade skin glaze, the content of calcined clay is 4 to 6 parts, for example, it can be 4 parts, 4.2 parts, 4.4 parts, 4.6 parts, 4.8 parts, 5 parts, 5.2 parts, 5.4 parts, 5.6 parts, 5.8 parts, 6 parts, etc.

[0032] In the raw materials for preparing the warm jade skin glaze, the content of dolomite is 11 to 13 parts, for example, it can be 11 parts, 11.2 parts, 11.4 parts, 11.6 parts, 11.8 parts, 12 parts, 12.2 parts, 12.4 parts, 12.6 parts, 12.8 parts, 13 parts, etc.

[0033] In the raw materials for preparing the warm jade skin glaze layer, the content of high barium frit is 6 to 8 parts, for example, it can be 6 parts, 6.2 parts, 6.5 parts, 6.8 parts, 7 parts, 7.2 parts, 7.5 parts, 7.8 parts, 8 parts, etc.

[0034] In the raw materials for preparing the warm jade skin glaze, the content of calcined talc is 2 to 4 parts, for example, it can be 2 parts, 2.2 parts, 2.5 parts, 2.8 parts, 3 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4 parts, etc.

[0035] In the raw materials for preparing the warm jade skin glaze, the content of barium carbonate is 5 to 7 parts, for example, it can be 5 parts, 5.2 parts, 5.5 parts, 5.8 parts, 6 parts, 6.2 parts, 6.5 parts, 6.8 parts, 7 parts, etc.

[0036] In the raw materials for preparing the warm jade skin glaze, the content of zinc oxide is 3 to 5 parts, for example, it can be 3 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4 parts, 4.2 parts, 4.5 parts, 4.8 parts, 5 parts, etc.

[0037] Preferably, the barium content of the high-barium frit is 30-38%, for example, it can be 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, etc.

[0038] Preferably, the gloss of the warm jade skin glaze ceramic tile is 15-25 degrees, for example, it can be 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, 21 degrees, 22 degrees, 23 degrees, 24 degrees, 25 degrees, etc.

[0039] Preferably, the warm jade skin glaze ceramic tile comprises, from bottom to top, a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer.

[0040] Secondly, the present invention provides a method for preparing the warm jade skin glaze ceramic tile as described in the first aspect. The preparation method includes the following steps: forming a base glaze layer on the surface of the body layer by glazing, and then forming a warm jade skin glaze layer by glazing to obtain a glazed body; firing the glazed body to obtain the warm jade skin glaze ceramic tile.

[0041] Preferably, the process parameters for the base glaze layer during the glazing process are: glaze specific gravity of 1.81–1.85 g / mL. 3 For example, it could be 1.81 g / mL 3 1.82 g / mL 3 1.83 g / mL 3 1.84 g / mL 3 1.85g / mL 3 The moisture content is 29-30%, for example, it can be 29%, 29.2%, 29.4%, 29.6%, 29.8%, 30%, etc.; the fineness is 0.4-0.6μm, for example, it can be 0.4μm, 0.45μm, 0.5μm, 0.55μm, 0.6μm, etc.; and the flow rate is 70-75s, for example, it can be 70s, 71s, 72s, 73s, 74s, 75s, etc.

[0042] Preferably, the process parameters for the warm jade skin glaze layer during the glazing process are: glaze specific gravity of 1.85~1.90g / cm³. 3 For example, it could be 1.85 g / cm³ 3 1.86 g / cm 3 1.87 g / cm 3 1.88g / cm 3 1.89 g / cm 3 1.90g / cm 3 The flow rate is 37-42s, for example, 37s, 38s, 39s, 40s, 41s, 42s, etc., and the glaze application amount is 65-75g / 400×400mm, for example, 65g / 400×400mm, 66g / 400×400mm, 68g / 400×400mm, 70g / 400×400mm, 72g / 400×400mm, 75g / 400×400mm, etc.

[0043] Preferably, the firing temperature is 1150-1190℃, for example, 1150℃, 1160℃, 1170℃, 1180℃, 1190℃, etc., and the firing time is 30-40min, for example, 30min, 32min, 34min, 36min, 38min, 40min, etc.

[0044] Preferably, the warm jade skin glaze ceramic tile comprises, from bottom to top, a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer, and the preparation method includes the following steps:

[0045] (1) A base glaze layer is formed on the surface of the blank layer by glazing;

[0046] (2) An inkjet pattern layer is formed on the base glaze layer by inkjet printing;

[0047] (3) A warm jade-like glaze layer is formed by glazing on the inkjet pattern layer to obtain a glazed body;

[0048] (4) The glazed body is fired to obtain the warm jade skin glaze ceramic tile.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] (1) The present invention forms a base glaze layer and a warm jade skin glaze layer with a specific formula on the surface of the body layer. The two work together to control the gloss of the warm jade skin glaze ceramic tile between 15 and 25 degrees.

[0051] (2) The warm jade skin glaze ceramic tile of the present invention is different from the existing skin glaze ceramic tile surface effect. While ensuring brightness, it further optimizes the ceramic tile surface effect, making the ceramic tile feel more delicate and moist, and can present silk or glitter luster, giving people a soft, quiet and comfortable visual feeling. It has simple, natural and elegant artistic characteristics, and the cost is more controllable. Attached Figure Description

[0052] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0053] Figure 1 The images show the surface patterns of the warm jade skin glaze ceramic tiles prepared in Example 1.

[0054] Figure 2 The images show the surface patterns of the warm jade skin glaze ceramic tiles prepared in Example 2.

[0055] Figure 3 The images show the surface patterns of the warm jade skin glaze ceramic tiles prepared in Example 3.

[0056] Figure 4 The surface of the skin-glazed ceramic tile prepared in Comparative Example 1 is shown.

[0057] Figure 5 The surface of the skin-glazed ceramic tile prepared in Comparative Example 4 is shown. Detailed Implementation

[0058] Unless otherwise defined herein, the scientific and technical terms used in conjunction with this invention shall have the meanings commonly understood by one of ordinary skill in the art. The meaning and scope of terms shall be clear; however, in any case of potential ambiguity, the definitions provided herein shall prevail over any dictionary or foreign definitions. In this application, unless otherwise stated, the use of "or" means "and / or". Furthermore, the use of the term "comprising" and other forms is non-limiting.

[0059] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] The present invention will be further illustrated by the following examples. Unless otherwise specified, the materials in the examples are prepared according to existing methods or purchased directly from the market.

[0061] Example 1

[0062] This embodiment provides a warm jade skin glaze ceramic tile, which, from bottom to top, includes a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer.

[0063] The raw materials for preparing the base glaze layer include the following components by weight: 16.61 parts of ultra-white zirconium silicate, 7.34 parts of kaolin, 19 parts of quartz powder, 36.8 parts of nepheline powder, 4.2 parts of wollastonite powder, 10.5 parts of albite powder, 2.1 parts of calcined talc, 3.14 parts of alumina, 0.31 parts of zirconium oxide, 0.36 parts of sodium hexametaphosphate, and 0.15 parts of sodium carboxymethyl cellulose.

[0064] The raw materials for preparing the warm jade skin glaze layer include the following components by weight: 35 parts potassium feldspar, 20 parts sodium feldspar, 8 parts kaolin, 5 parts calcined clay, 12 parts dolomite, 7 parts high barium frit (barium content of 35%), 3 parts calcined talc, 6 parts barium carbonate, and 4 parts zinc oxide.

[0065] The warm jade skin glaze ceramic tile is prepared by the following steps:

[0066] S1 Ingredients: Prepare the base glaze powder according to the above base glaze powder, then add 29.5 parts of water to prepare the base glaze slurry; Prepare the base glaze powder according to the above warm jade skin glaze powder, then add 292 parts of water to prepare the warm jade skin glaze slurry.

[0067] S2 Base Glaze: A base glaze layer is formed on the surface of the finished body layer by applying a base glaze slurry; wherein the specific gravity of the base glaze is 1.82 g / mL. 3 The moisture content requirement is 29.5%, the fineness requirement is 0.5μm, the sieve requirement is 325 mesh, and the flow rate requirement is 72s.

[0068] S3 Inkjet Printing: An inkjet pattern layer is formed on the base glaze layer by inkjet printing;

[0069] S4 Warm Jade Skin Glaze: A warm jade skin glaze layer is formed by glazing the inkjet pattern layer to obtain a glazed body; wherein, the specific gravity of the warm jade glaze is 1.88 g / cm³. 3 The flow rate is 40s, and the glaze weight for a 400×400mm tray is 70g.

[0070] S5 Firing: The glazed body is fired to obtain the warm jade skin glaze ceramic tile; wherein the kiln firing temperature is 1170℃ and the firing time is 35min.

[0071] Figure 1 The images show surface views of the warm jade skin glaze ceramic tiles with different patterns prepared in Example 1. The two patterns are formed by different designs of the inkjet layer.

[0072] Example 2

[0073] This embodiment provides a warm jade skin glaze ceramic tile, which, from bottom to top, includes a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer.

[0074] The raw materials for preparing the base glaze layer include the following components by weight: 16 parts ultra-white zirconium silicate, 8 parts kaolin, 18 parts quartz powder, 38 parts nepheline powder, 4 parts wollastonite powder, 11 parts albite powder, 1 part calcined talc, 4 parts alumina, 0.1 parts zirconium oxide, 0.2 parts sodium hexapolymetaphosphate, and 0.1 parts sodium carboxymethyl cellulose.

[0075] The raw materials for preparing the warm jade skin glaze layer include the following components by weight: 34 parts potassium feldspar, 22 parts sodium feldspar, 6 parts kaolin, 6 parts calcined clay, 11 parts dolomite, 8 parts high barium frit (barium content of 30%), 2 parts calcined talc, 7 parts barium carbonate, and 3 parts zinc oxide.

[0076] The warm jade skin glaze ceramic tile is prepared by the following steps:

[0077] S1 Ingredients: Prepare the base glaze powder according to the above base glaze powder, then add 29.8 parts of water to prepare the base glaze slurry; Prepare the base glaze powder according to the above warm jade skin glaze powder, then add 29.6 parts of water to prepare the warm jade skin glaze slurry.

[0078] S2 Base Glaze: A base glaze layer is formed on the surface of the finished body layer by applying a base glaze slurry; wherein the specific gravity of the base glaze is 1.81 g / mL. 3 The moisture content requirement is 29%, the fineness requirement is 0.4μm, the sieve requirement is 325 mesh, and the flow rate requirement is 70s.

[0079] S3 Inkjet Printing: An inkjet pattern layer is formed on the base glaze layer by inkjet printing;

[0080] S4 Warm Jade Skin Glaze: A warm jade skin glaze layer is formed by pouring glaze onto the inkjet pattern layer to obtain a glazed body; wherein, the specific gravity of the warm jade glaze is 1.88 g / cm³. 3 The flow rate is 42s, and the glaze weight for a 400×400mm tray is 70g.

[0081] S5 Firing: The glazed body is fired to obtain the warm jade skin glaze ceramic tile; wherein the kiln firing temperature is 1150℃ and the firing time is 35min.

[0082] Figure 2 The images show surface views of the warm jade skin-like glaze ceramic tiles with different patterns prepared in Example 2. The two patterns are formed by different designs of the inkjet layer.

[0083] Example 3

[0084] This embodiment provides a warm jade skin glaze ceramic tile, which, from bottom to top, includes a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer.

[0085] The raw materials for preparing the base glaze layer include the following components by weight: 18 parts ultra-white zirconium silicate, 7 parts kaolin, 20 parts quartz powder, 36 parts nepheline powder, 5 parts wollastonite powder, 10 parts albite powder, 3 parts calcined talc, 2 parts alumina, 0.4 parts zirconium oxide, 0.4 parts sodium hexapolymetaphosphate, and 0.2 parts sodium carboxymethyl cellulose.

[0086] The raw materials for preparing the warm jade skin glaze layer include the following components by weight: 36 parts potassium feldspar, 18 parts sodium feldspar, 10 parts kaolin, 4 parts calcined clay, 13 parts dolomite, 6 parts high barium frit (barium content of 38%), 4 parts calcined talc, 5 parts barium carbonate, and 5 parts zinc oxide.

[0087] The warm jade skin glaze ceramic tile is prepared by the following steps:

[0088] S1 Ingredients: Prepare the base glaze powder according to the above base glaze powder, then add 29.3 parts of water to prepare the base glaze slurry; Prepare the base glaze powder according to the above warm jade skin glaze powder, then add 29.7 parts of water to prepare the warm jade skin glaze slurry.

[0089] S2 Base Glaze: A base glaze layer is formed on the surface of the finished body layer by applying a base glaze slurry; wherein the specific gravity of the base glaze is 1.85 g / mL. 3 The moisture content requirement is 30%, the fineness requirement is 0.6μm, the sieve requirement is 325 mesh, and the flow rate requirement is 75s.

[0090] S3 Inkjet Printing: An inkjet pattern layer is formed on the base glaze layer by inkjet printing;

[0091] S4 Warm Jade Skin Glaze: A warm jade skin glaze layer is formed by pouring glaze onto the inkjet pattern layer to obtain a glazed body; wherein, the specific gravity of the warm jade glaze is 1.88 g / cm³. 3 The flow rate is 37s, and the glaze weight for a 400×400mm tray is 70g.

[0092] S5 Firing: The glazed body is fired to obtain the warm jade skin glaze ceramic tile; wherein the kiln firing temperature is 1150℃ and the firing time is 35min.

[0093] Figure 3 The images show surface views of the warm jade skin-like glaze ceramic tiles with different patterns prepared in Example 3. The two patterns are formed by different designs of the inkjet layer.

[0094] Example 4

[0095] This embodiment provides a warm jade skin glaze ceramic tile, which differs from Embodiment 1 only in that it does not have an inkjet pattern layer; the other steps are the same as in Embodiment 1.

[0096] Example 5

[0097] This embodiment provides a warm jade skin glaze ceramic tile, which differs from Embodiment 1 only in that sodium hexapolyphosphate is not added to the raw materials for preparing the base glaze layer; the other steps are the same as in Embodiment 1.

[0098] Example 6

[0099] This embodiment provides a warm jade skin glaze ceramic tile, which differs from Embodiment 1 only in that sodium carboxymethyl cellulose is not added to the raw materials for preparing the base glaze layer, while the other steps are the same as in Embodiment 1.

[0100] Example 7

[0101] This embodiment provides a warm jade-skin glaze ceramic tile, which differs from Embodiment 1 only in that the specific gravity of the base glaze is 1.88 g / cm³. 3 The specific gravity of the warm jade skin glaze is 1.81 g / cm³. 3 The other steps are the same as in Example 1.

[0102] Comparative Example 1

[0103] This comparative example provides a skin-glazed ceramic tile, which differs from Example 1 in that the tile comprises, from bottom to top, a body layer, a first-stage base glaze layer, an inkjet pattern layer, and a second-stage polished glaze layer.

[0104] The first-stage base glaze, by weight, includes: 84 parts YF800, 10.08 parts zirconium silicate, 0.1 parts sodium carboxymethyl cellulose, 1.7 parts quartz powder, 3.36 parts calcined talc, 0.42 parts washed clay, and 0.17 parts sodium tripolyphosphate.

[0105] The chemical composition of YF800, by mass percentage, is as follows:

[0106] SiO2: 58.58%, Al2O3: 29.95%, Fe2O3: 0.21%, TiO2: 0.1%, CaO: 0.77%, MgO: 1.85%, K2O: 1.73%, Na2O: 4.83%, P2O5: 0.06%, SrO: 0.02%, BaO: 0.05%, ZnO: 0.03% (the balance is impurities).

[0107] The second-stage polishing glaze, by weight, includes: YB-188: 99.16 parts, calcined alumina: 0.2 parts, sodium carboxymethyl cellulose: 0.12 parts, and sodium tripolyphosphate: 0.37 parts.

[0108] The chemical composition of YB-188, by mass percentage, is as follows:

[0109] SiO2: 46.6%, Al2O3: 14.43%, Fe2O3: 0.14%, CaO: 5.76%, MgO: 4.51%, K2O: 3.89%, Na2O: 1.45%, SrO: 0.04%, ZrO2: 0.03%, BaO: 8.99%, ZnO: 4.57% (the balance is impurities).

[0110] Comparative Example 2

[0111] This comparative example provides a skin-glazed ceramic tile, which differs from Example 1 only in that the base glaze is replaced with the one-stage base glaze layer of Comparative Example 1, while the skin glaze layer is still the warm jade skin glaze of Example 1.

[0112] The first-stage base glaze, by weight, includes: 84 parts YF800, 10.08 parts zirconium silicate, 0.1 parts sodium carboxymethyl cellulose, 1.7 parts quartz powder, 3.36 parts calcined talc, 0.42 parts washed clay, and 0.17 parts sodium tripolyphosphate.

[0113] The chemical composition of YF800, by mass percentage, is as follows:

[0114] SiO2: 58.58%, Al2O3: 29.95%, Fe2O3: 0.21%, TiO2: 0.1%, CaO: 0.77%, MgO: 1.85%, K2O: 1.73%, Na2O: 4.83%, P2O5: 0.06%, SrO: 0.02%, BaO: 0.05%, ZnO: 0.03% (the balance is impurities).

[0115] Comparative Example 3

[0116] This comparative example provides a skin-glazed ceramic tile, which differs from Example 1 only in that the skin-glaze is replaced with the two-stage polished glaze of Comparative Example 1, while the base glaze layer remains the base glaze layer of Example 1.

[0117] The second-stage polishing glaze, by weight, includes: YB-188: 99.16 parts, calcined alumina: 0.2 parts, sodium carboxymethyl cellulose: 0.12 parts, and sodium tripolyphosphate: 0.37 parts.

[0118] The chemical composition of YB-188, by mass percentage, is as follows:

[0119] SiO2: 46.6%, Al2O3: 14.43%, Fe2O3: 0.14%, CaO: 5.76%, MgO: 4.51%, K2O: 3.89%, Na2O: 1.45%, SrO: 0.04%, ZrO2: 0.03%, BaO: 8.99%, ZnO: 4.57% (the balance is impurities).

[0120] Comparative Example 4

[0121] This comparative example provides a warm jade skin glaze ceramic tile, which differs from Example 1 only in the proportion of raw materials in the base glaze layer. Specifically, the raw materials for preparing the base glaze layer include the following components by weight: 10 parts ultra-white zirconium silicate, 15 parts kaolin, 25 parts quartz powder, 30 parts nepheline powder, 1 part wollastonite powder, 15 parts albite powder, 0.5 parts calcined talc, 5 parts alumina, 0.1 parts zirconium oxide, 0.36 parts sodium hexametaphosphate, and 0.15 parts sodium carboxymethyl cellulose.

[0122] Comparative Example 5

[0123] This comparative example provides a warm jade skin glaze ceramic tile, which differs from Example 1 only in the proportion of each raw material in the warm jade skin glaze layer. Specifically, the raw materials for preparing the warm jade skin glaze layer include the following components by weight: 30 parts potassium feldspar, 25 parts sodium feldspar, 3 parts kaolin, 10 parts calcined clay, 7 parts dolomite, 12 parts high barium frit (barium content is 35%), 1 part calcined talc, 10 parts barium carbonate, and 1 part zinc oxide.

[0124] Test case

[0125] Test samples: the warm jade skin glaze ceramic tiles provided in Examples 1-7, and the skin glaze ceramic tiles provided in Comparative Examples 1-5;

[0126] Test items:

[0127] (1) Gloss performance test: The gloss of the tile surface refers to the ability of the tile surface to reflect light. The gloss of the tile surface was tested using a WGG60-Y4 gloss meter manufactured by Keshijia Optoelectronic Instruments Co., Ltd.

[0128] (2) Color development test: visual inspection;

[0129] (3) Melting temperature test: The melting temperature range of the glaze is tested in accordance with QB / T 1546-2016 "Method for Determination of Melting Temperature of Ceramic Glaze";

[0130] (4) Abrasion resistance test: The abrasion resistance of ceramic tile glaze surface is tested using a ceramic tile abrasion tester;

[0131] (5) Stain resistance test: Apply oily stain agent to the brick surface, soak the brick for 24 hours, and then wash it with warm water at about 55℃ for about 5 minutes.

[0132] (6) Anti-fouling performance test: Use black, red and blue oil-based ink pens to draw evenly on the brick surface, let it stand until the ink dries, and then wash it with clean water. During the washing process, observe whether the marks left by the ink pen can be effectively wiped away, so as to compare the changes in the glaze effect of the product before and after the test.

[0133] (7) Hand feel test: check the feel of the hand.

[0134] The specific test results are shown in Table 1:

[0135] Table 1

[0136]

[0137]

[0138]

[0139] As shown in Table 1, this invention forms a base glaze layer and a warm jade skin glaze layer with a specific formula on the surface of the body layer. The two work together to control the gloss of the warm jade skin glaze tile between 15 and 25 degrees. The warm jade skin glaze tile of this invention differs from the existing skin glaze tile surface effect. While ensuring brightness, it further optimizes the tile surface effect, making the tile feel more delicate and moist, and able to present a silky or sparkling luster, giving people a soft, quiet and comfortable visual experience. It has a simple, natural and elegant artistic feature, and the cost is more controllable.

[0140] A comparison of Example 1 and Comparative Example 1 shows that, compared to the two one-stage base glaze formulations, the properties of zirconium oxide make the tiles more wear-resistant and stronger. Furthermore, zirconium oxide has good dispersion properties and fine particle size, resulting in a better feel and a more skin-like texture. Comparing the two two-stage polishing glaze formulations, the "Warm Jade Skin Glaze" has restructured its quality formula to better improve existing formulations. This application repeatedly mentions barium carbonate in its two-stage polishing glaze formulation. Barium carbonate can improve the hardness, wear resistance, and corrosiveness of chemical raw materials in tiles, thereby reducing ignition loss and lowering costs. Adding barium carbonate to tiles can also reduce porosity and bubbles on the tile surface, expand the sintering range, and increase the coefficient of expansion, resulting in purer color and more stable and controllable brightness in the finished tile.

[0141] As can be seen from Comparative Example 2, if the base glaze is replaced with the first-stage base glaze layer of Comparative Example 1, while the skin glaze layer is still the warm jade skin glaze of Example 1, the resulting ceramic tile glaze surface is darker and leaves marks after wiping, and its anti-fouling performance is poor.

[0142] As can be seen from Comparative Example 3, if the skin glaze is replaced with the two-stage polished glaze of Comparative Example 1, while the base glaze layer is still the base glaze layer of Example 1, the prepared ceramic tile has poor wear resistance and a slightly rough feel.

[0143] As can be seen from Examples 1 and 4-5, the proportions of raw materials in the base glaze layer are outside the scope of this application, resulting in a reddish glaze color in the prepared ceramic tile. Although it can be cleaned with running hot water, it leaves traces after wiping, indicating poor stain resistance. Similarly, the proportions of raw materials in the "Warm Jade Skin" glaze layer are different and outside the scope of this application, resulting in a less transparent glaze color in the prepared ceramic tile. Although it can be cleaned with running hot water, it leaves traces after wiping, indicating poor stain resistance. This demonstrates that by forming a base glaze layer and a "Warm Jade Skin" glaze layer with specific proportions on the surface of the body layer, the two layers work together to create a "Warm Jade Skin" glaze ceramic tile that differs from existing skin glaze tiles. While maintaining brightness, it further optimizes the tile surface effect and improves stain resistance.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A warm jade-skin glaze ceramic tile, characterized in that, The warm jade skin glaze ceramic tile consists of, from bottom to top, a body layer, a base glaze layer, and a warm jade skin glaze layer. The raw materials for preparing the base glaze layer include the following components by weight: 16-18 parts of ultra-white zirconium silicate, 7-8 parts of kaolin, 18-20 parts of quartz powder, 36-38 parts of nepheline powder, 4-5 parts of wollastonite, 10-11 parts of albite, 1-3 parts of calcined talc, 2-4 parts of alumina, and 0.1-0.5 parts of zirconium oxide. The raw materials for preparing the warm jade skin glaze layer include the following components by weight: 34-36 parts potassium feldspar, 18-22 parts sodium feldspar, 6-10 parts kaolin, 4-6 parts calcined clay, 11-13 parts dolomite, 6-8 parts high-barium frit, 2-4 parts calcined talc, 5-7 parts barium carbonate, and 3-5 parts zinc oxide; and the barium content of the high-barium frit is 30-38%.

2. The skin-warming enamel tile according to claim 1, characterized in that, The raw materials used to prepare the base glaze layer also include sodium hexapolyphosphate and / or sodium carboxymethyl cellulose.

3. The warm-touch glazed porcelain tile according to claim 2, characterized in that, The sodium hexapolyphosphate is present in a weight ratio of 0.1 to 0.5 parts.

4. The skin-warming enamel tile according to claim 2, characterized in that, The sodium carboxymethyl cellulose is present in a weight ratio of 0.05 to 0.3 parts.

5. The warm-touch glazed porcelain tile according to claim 1, characterized in that, The gloss level of the warm jade skin glaze ceramic tile is 15-25 degrees.

6. The warm-touch glazed porcelain tile according to claim 1, characterized in that, The warm jade skin glaze ceramic tile comprises, from bottom to top, a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer.

7. A method of producing the skin-warming enamel tile according to any one of claims 1 to 6, characterized in that, The preparation method includes the following steps: forming a base glaze layer on the surface of the body layer by glazing, and then forming a warm jade skin glaze layer by glazing to obtain a glazed body; firing the glazed body to obtain the warm jade skin glaze ceramic tile.

8. The method of claim 7, wherein the skin-warming enamel tile is prepared by adding 0.1 to 0.5 parts by weight of the skin-warming agent to 100 parts by weight of the enamel tile. The process parameters for the base glaze layer during the glazing process are as follows: glaze specific gravity is 1.81~1.85 g / mL, water content is 29~30%, fineness is 0.4~0.6 μm, and flow rate is 70~75 s.

9. The method for preparing the warm jade skin glaze ceramic tile according to claim 7, characterized in that, The process parameters for the warm jade skin glaze layer during the glazing process are: glaze specific gravity 1.85~1.90 g / cm³. 3 The flow rate is 37~42 s, and the glaze application rate is 65~75 g / 400×400 mm.

10. The method for preparing the warm jade skin glaze ceramic tile according to claim 7, characterized in that, The firing temperature is 1150~1190℃, and the firing time is 30~40 min.

11. The method for preparing the warm jade skin glaze ceramic tile according to claim 7, characterized in that, The warm jade skin glaze ceramic tile comprises, from bottom to top, a body layer, a base glaze layer, an inkjet pattern layer, and a warm jade skin glaze layer. The preparation method includes the following steps: (1) A base glaze layer is formed on the surface of the blank layer by glazing; (2) An inkjet pattern layer is formed on the base glaze layer by inkjet printing; (3) A warm jade-like glaze layer is formed by glazing on the inkjet pattern layer to obtain a glazed body; (4) The glazed body is fired to obtain the warm jade skin glaze ceramic tile.

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