Marble tile capable of locally positioning micro-light and preparation method thereof

Abstract

The present application relates to the technical field of ceramic tiles, and in particular to a marble ceramic tile with locally positioned micro light and a preparation method thereof. The present application discloses a marble ceramic tile with locally positioned micro light, which comprises a body, and further comprises a glaze layer, a flash glaze layer and a protective glaze layer attached to the body in sequence. The flash glaze material for forming the flash glaze layer comprises the following raw materials in parts by weight: flash powder 30-50 parts, high-calcium dry particles 10-30 parts and protective powder 1-3 parts. The flash powder comprises the following raw materials in parts by weight: iron oxide 5-8 parts, manganese oxide 5-8 parts, copper carbonate 5-8 parts, cobalt oxide 5-8 parts and fluorescent powder 10-18 parts. The marble ceramic tile of the present application replaces the externally added flash phase with spontaneous crystallization of the flash glaze material during the firing process, which can impart flash decoration to the glaze surface without affecting the thorough and transparent characteristics of the glaze layer itself, and can also eliminate the impurity and jarring feelings of the glaze surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic tiles, in particular to a marble tile with locally positioned micro light and a preparation method thereof. BACKGROUND

[0002] Marble tile refers to a kind of ceramic tile product with realistic texture, color and texture of natural marble. It has realistic decorative effect of natural marble and superior performance of ceramic tile, and discards various natural defects of natural marble. It is a revolutionary innovator in the building ceramic industry and a representative work of modern top ceramic tile manufacturing process. Marble tile is a new ceramic tile category after ceramic sheet, polished tile, antique tile and microcrystalline stone tile. The texture, color, texture, hand feeling and visual effect of marble tile completely achieve the realistic effect of natural marble, and the decorative effect is even better than that of natural stone. Marble tile wins the favor of consumers with its realistic decorative effect and superior practical performance, and has become one of the mainstream products in the ceramic tile field.

[0003] However, in actual use, marble tile still has some disadvantages, such as: the current marble tile in the ceramic industry often lacks a flashing effect compared with natural marble, or has poor light effect, the transition is not natural enough, the ceramic tile does not look like natural stone in appearance, and the surface quality of the flashing ceramic tile prepared by the existing technology is not high, the ceramic tile surface has large particles, cannot cooperate with the brick surface pattern, and has a large difference from the effect of natural stone.

[0004] Therefore, it is necessary to develop a marble tile with locally positioned micro light and a preparation method thereof. SUMMARY

[0005] The marble tile and the preparation method thereof described in the present application can realize the self-crystallization of the flashing glaze during the firing process instead of adding flashing phases, which can give the glaze surface a flashing decoration without affecting the thoroughness and transparency of the glaze layer, eliminate the impurity and abruptness of the glaze surface, accurately control the colors of the marble tile through silk screen printing, present rich color changes, and reduce or even eliminate the defects of the glaze surface layer such as bubbles, cavities and reduced density of the glaze layer.

[0006] The purpose of the present application is achieved by the following technical solutions:

[0007] The first purpose of the present application is a marble tile with locally positioned micro light, which comprises a body and a glaze layer, a flashing glaze layer and a protective glaze layer attached to the body in sequence.

[0008] The flashing glaze for forming the flashing glaze layer comprises the following raw materials in weight parts:

[0009] flash powder 30-50 parts, high calcium dry particle 10-30 parts, protective powder 1-3 parts;

[0010] The flash powder, in parts by weight, comprises the following raw materials:

[0011] Iron oxide 5-8 parts, manganese oxide 5-8 parts, copper carbonate 5-8 parts, cobalt oxide 5-8 parts, fluorescent powder 10-18 parts.

[0012] Preferably, the high calcium dry particle comprises the following chemical composition in percentage by mass:

[0013] SiO2: 40-48%, Al2O3: 25-32%, CaO: 20-25%, MgO: 0.08-1.2%, K2O: 0.3-0.4%, Na2O: 1.5-2.2%, TiO2: 0.02-0.1%.

[0014] Preferably, the particle size of the high calcium dry particle is 0.1-0.15mm.

[0015] Preferably, the protective powder comprises the following chemical composition in percentage by mass:

[0016] SiO2: 42.74%, Al2O3: 22.38%, Fe2O3: 0.17%, TiO2: 0.06%, CaO: 8.01%, MgO: 4.36%, K2O: 3.05%, Na2O: 0.96%, BaO: 4.95%, loss on ignition: 11.89%.

[0017] Preferably, the glaze material forming the glaze layer comprises the following raw materials in parts by weight:

[0018] Quartz 20-30 parts, feldspar 20-30 parts, kaolin 10-15 parts, limestone 8-15 parts, calcite 8-15 parts, talc 5-8 parts, zinc oxide 3-5 parts, borax 3-5 parts.

[0019] Preferably, the protective powder forming the protective glaze layer comprises the following chemical composition in percentage by mass:

[0020] SiO2: 42.74%, Al2O3: 22.38%, Fe2O3: 0.17%, TiO2: 0.06%, CaO: 8.01%, MgO: 4.36%, K2O: 3.05%, Na2O: 0.96%, BaO: 4.95%, loss on ignition: 11.89%.

[0021] The second object of the application provides a method for preparing marble ceramic tiles with locally positioned micro-light, comprising the following steps:

[0022] S1. Press the ceramic body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body to form a glaze layer;

[0023] S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern;

[0024] S3. Preparation of glitter glaze paste;

[0025] S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer;

[0026] S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer.

[0027] S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

[0028] Preferably, in step S3, the preparation of the glitter glaze paste involves mixing glitter powder, high-calcium dry granules, protective powder, and water evenly according to the raw material composition of the glitter glaze to prepare the glitter glaze paste.

[0029] Preferably, in step S1, the slurry of the surface glaze has a specific gravity of 1.84-1.88 g / ml and the amount of glaze applied is 65 g.

[0030] Preferably, in step S5, the specific gravity of the protective glaze slurry is 1.56-1.60 g / ml, and the amount of glaze applied is 180-200 g.

[0031] The beneficial effects of this application are:

[0032] 1. This application enhances the three-dimensionality, color vibrancy, and texture of mosaic tiles by combining inkjet printing with screen printing, thus restoring the original appearance of stone. By using the spontaneous crystallization of glitter glaze during the firing process instead of adding external glitter phases, the glaze surface is given a glittery decoration without affecting its own clarity and transparency. It also eliminates the impurity and abruptness of the glaze surface. At the same time, screen printing can precisely control the various colors of marble tiles, presenting rich color variations. The glitter phase and the glass phase of the glaze layer have good wetting, encapsulation, and chemical bonding, which can reduce or even eliminate glaze layer defects such as bubbles, voids, and reduced glaze layer density.

[0033] 2. This application combines the versatility of screen printing, applies a layer of glitter glaze to a localized area on the surface of the ceramic body, and then applies a protective glaze on top. It is fired at a maximum firing temperature of 1240℃ for a total firing time of 60-80 minutes. After firing, it is brushed and polished. The brushing and polishing blocks are mainly the elastic abrasive blocks commonly used in the industry, which further improves the stain resistance of the ceramic tile, resulting in a beautiful surface effect and a stone-like texture. Attached Figure Description

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a structural schematic diagram of a locally positioned micro-light marble ceramic tile as described in this application. Detailed Implementation

[0036] As used herein, “and / or” includes all combinations of any and one or more of the associated listed items. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein, the singular forms “a,” “an,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. Further understanding is needed; when used in this specification, “comprising” designates the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0037] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Further understanding is that terms, such as those defined in common dictionaries, are interpreted in accordance with their meaning in the context of the relevant field and are not idealized or overly formal, unless expressly defined herein.

[0038] The exemplary invention described herein may suitably omit any one or more limiting elements, which are not specifically disclosed herein. Therefore, terms such as “comprising,” “including,” “containing,” etc., should be interpreted broadly and non-limitingly. Furthermore, the terminology used herein is for descriptive purposes without limitation, and it is unintentional to use terms that do not include any equivalent characteristics, but only to describe a portion of their characteristics; however, various modifications are possible within the scope of the invention according to the claims. Therefore, while the invention has been specifically disclosed through preferred embodiments and optional features, variations of the invention embodied by the modifications disclosed herein may be noted by those skilled in the art, and such modifications and variations are considered to be within the scope of the invention.

[0039] All raw materials or reagents used in the embodiments and comparative examples of this invention were purchased from mainstream manufacturers on the market. Those without specified manufacturers or concentrations are all analytical grade raw materials or reagents that are routinely available. There are no particular restrictions as long as they achieve the expected effect. The instruments and equipment used in this embodiment were all purchased from major manufacturers on the market. There are no particular limitations as long as they achieve the expected effect. Where specific techniques or conditions are not specified in this embodiment, they shall be performed in accordance with the techniques or conditions described in the literature in this field or according to the product instructions.

[0040] On the one hand, this application provides a marble ceramic tile with localized micro-light, including a body, and a glaze layer, a glitter glaze layer, and a protective glaze layer sequentially attached to the body;

[0041] Specifically, a type of marble tile with localized micro-gloss includes a body 1, a glaze layer 2 at the top of the body 1, a pattern 3 on the glaze layer 2, a shimmering glaze layer 4 on the pattern 3, and a protective glaze layer 5 on the shimmering glaze layer 4. Specifically, the thickness of the body 1 ranges from three centimeters to four centimeters, the thickness of the glaze layer 2 ranges from 0.5 centimeters to 0.8 centimeters, and the thickness of the protective glaze layer 5 ranges from 0.3 centimeters to 0.5 centimeters.

[0042] The glitter glaze that forms the glitter glaze layer comprises, by weight, the following raw materials:

[0043] 30-50 parts glitter powder, 10-30 parts high-calcium dry granules, and 1-3 parts protective powder;

[0044] The glitter powder, by weight, comprises the following raw materials:

[0045] 5-8 parts iron oxide, 5-8 parts manganese oxide, 5-8 parts copper carbonate, 5-8 parts cobalt oxide, and 10-18 parts phosphor.

[0046] The high-calcium dry granules comprise the following chemical composition by weight percentage:

[0047] SiO2: 40-48%, Al2O3: 25-32%, CaO: 20-25%, MgO: 0.08-1.2%, K2O: 0.3-0.4%, Na2O: 1.5-2.2%, TiO2: 0.02-0.1%. The high-calcium dry granules described in this application only need to have their chemical composition controlled within the above ranges, i.e., reaching 100%. For example, the high-calcium dry granules selected in Examples 1-4 have the following chemical composition: SiO2: 48%, Al2O3: 25%, CaO: 25%, MgO: 0.08%, K2O: 0.4%, Na2O: 1.5%, TiO2: 0.02%.

[0048] In one embodiment, the particle size of the high-calcium dry granules is 0.1-0.15 mm.

[0049] In one embodiment, the protective powder comprises the following chemical composition in weight percentages:

[0050] SiO2: 42.74%, Al2O3: 22.38%, Fe2O3: 0.17%, TiO2: 0.06%, CaO: 8.01%, MgO: 4.36%, K2O: 3.05%, Na2O: 0.96%, BaO: 4.95%, loss on ignition 11.89%, and other unavoidable impurities (e.g., ZnO, Cr2O3, SrO, ZrO2).

[0051] In one embodiment, the glaze material forming the glaze layer comprises, by weight, the following raw materials:

[0052] Quartz 20-30 parts, feldspar 20-30 parts, kaolin 10-15 parts, limestone 8-15 parts, calcite 8-15 parts, talc 5-8 parts, zinc oxide 3-5 parts, borax 3-5 parts.

[0053] In one embodiment, the protective powder forming the protective glaze layer comprises the following chemical composition in weight percentages:

[0054] SiO2: 42.74%, Al2O3: 22.38%, Fe2O3: 0.17%, TiO2: 0.06%, CaO: 8.01%, MgO: 4.36%, K2O: 3.05%, Na2O: 0.96%, BaO: 4.95%, loss on ignition 11.89%, and other unavoidable impurities (e.g., ZnO, Cr2O3, SrO, ZrO2).

[0055] On the other hand, this application provides a method for preparing marble ceramic tiles with locally positioned micro-light, comprising the following steps:

[0056] S1. Press the ceramic body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body to form a glaze layer;

[0057] S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern;

[0058] S3. Preparation of glitter glaze paste;

[0059] S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer;

[0060] S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer.

[0061] S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

[0062] Specifically, the ceramic body in step S1 is prepared according to conventional or existing processes; in step S1, the glaze slurry has a specific gravity of 1.84-1.88 g / ml and the glaze application amount is 65 g.

[0063] In one embodiment, in step S3, the preparation of the glitter glaze paste involves mixing glitter powder, high-calcium dry granules, protective powder, and water evenly according to the raw material composition of the glitter glaze to prepare the glitter glaze paste.

[0064] In one embodiment, in step S5, the specific gravity of the protective glaze is 1.56-1.60 g / ml.

[0065] In this application, the high-calcium dry particles in the glitter glaze can improve the glaze effect, reduce glaze defects, and enhance the glitter effect.

[0066] The protective powder in the glaze can protect the brick surface pattern, improve the brick surface's stain resistance, and reduce glaze defects.

[0067] More specifically, a method for preparing locally positioned micro-light marble ceramic tiles includes the following steps:

[0068] S1. Press the green body powder into a ceramic green body, send the ceramic green body into a drying kiln to dry, and apply a surface glaze to the surface of the dried ceramic green body.

[0069] S2. Inkjet printing of the design pattern on the surface of the ceramic body after glazing;

[0070] S3. Prepare the glitter glaze paste by mixing glitter powder, water, and body protective glaze evenly to prepare the glitter glaze paste for later use.

[0071] S4. Based on the marble surface texture, use Photoshop to adjust the grayscale of each color in the design, then output the film as a negative, and then make a screen print. The screen design is based on the marble texture to create different texture screens. Before screen printing, adjust the color according to the grayscale of the screen. One screen is designed according to the stone texture and printed with a glitter glaze. Finally, a protective glaze is printed.

[0072] S5. When firing in the furnace, the temperature is 1220-1240℃ and the firing time is 80 minutes to obtain a semi-finished product.

[0073] In step S1, the raw materials entering the warehouse undergo inspection, which mainly includes sampling, cake making and trial firing, physical property testing, and chemical analysis. The raw material receiving personnel first sample the newly arrived raw materials and test the moisture content of the samples. Then, the inspectors process the samples according to the procedure, performing powdering, cake making, and trial firing, and testing the physical properties of the fired cakes, such as whiteness, strength, and water absorption. Simultaneously, the laboratory technicians extract a portion of the powder from the powdering process for chemical analysis, testing whether the content of various chemical components in the raw materials meets the factory's process requirements. After the powder passes inspection in step S1, it is prepared, including batching, ball milling, sieving to remove iron, slurry homogenization, spray drying, and aging in the silo.

[0074] In step S5, the screen is cut according to the actual area requirement, and at the same time, the luminescent material precipitates crystals on the glaze layer to produce a colorless and transparent glitter phase.

[0075] The high-calcium dry granules of this application have a particle size of 0.1-0.15 mm. The preparation method of this application adopts spontaneous crystallization instead of adding an external glitter phase. The high-calcium dry granules are used in combination with glitter powder. During high-temperature firing, a uniformly dispersed local high-calcium liquid phase is formed in the glaze melt, and the high-calcium liquid phase is evenly distributed in the glaze layer. The glitter phase and the glassy phase of the glaze layer have good wetting, encapsulation and chemical bonding.

[0076] The glassy phase is a component of ceramic bodies that melts (liquids) at high temperatures, existing between grains. It refers to an amorphous substance formed during the high-temperature sintering of ceramics through a series of physical and chemical reactions involving the constituent substances and impurities. The main functions of the glassy phase are to bind dispersed crystalline phases together, inhibit grain growth, and fill pores to make the ceramic denser. Reactions occur between the surface glaze, protective glaze, and glitter particles, causing them to adhere and form the glassy phase.

[0077] After firing, the semi-finished ceramic tiles undergo edge grinding, leveling, polishing, post-edge grinding, and air drying. In the edge grinding process, the size and diagonal of the tiles must strictly meet internal control standards. When entering the polishing process, polishing is divided into three steps: coarse polishing, medium polishing, and fine polishing. That is, the polishing blocks used for polishing are arranged from coarse to fine, and the milled surface of the tiles is gradually ground to achieve a glossy finish and reveal the original texture of the tile blank. Finally, the tiles are graded to complete the process before leaving the factory. Grading is a very important step and is a key part of controlling product quality. Each batch of finished products is graded according to size, color, and flatness. Then, they are waxed, packaged and stored according to batch, and then shipped out.

[0078] The polishing process includes the following steps: The fired ceramic tile is polished sequentially using 45-mesh diamond elastic abrasive blocks and 180-mesh sponge abrasive blocks; wherein, there are 26 sets of diamond elastic abrasive blocks and 18 sets of sponge abrasive blocks. Each diamond elastic abrasive block consists of a base and an abrasive block. By weight percentage, the abrasive block comprises the following raw materials mixed and pressed together: 8% diamond abrasive, 50% phenolic resin, 21% silicon carbide micro powder, 9% corundum micro powder, and 14% adhesive; the silicon carbide micro powder has a particle size of 18-25 nm, and the corundum micro powder has a particle size of 25-35 nm; the diamond abrasive includes three particle sizes: coarse, medium, and fine, with 30% being coarse-grained diamond abrasive (20-50 μm), 35% being medium-grained diamond abrasive (10-20 μm), and 35% being fine-grained diamond abrasive (0.5-10 μm).

[0079] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments. The content mentioned in the embodiments is not intended to limit the present invention.

[0080] Example 1

[0081] A method for preparing locally positioned micro-light marble ceramic tiles includes the following steps:

[0082] S1. Press the body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body; the amount of glaze applied is 65g to form a glaze layer;

[0083] The surface glaze layer is obtained by mixing the various raw materials of the surface glaze with water to obtain a slurry with a specific gravity of 1.84-1.88 g / ml;

[0084] The glaze material forming the glaze layer comprises, by weight, the following raw materials:

[0085] 20 parts quartz, 20 parts feldspar, 10 parts kaolin, 8 parts limestone, 8 parts calcite, 5 parts talc, 3 parts zinc oxide, and 3 parts borax.

[0086] S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern;

[0087] S3. Preparation of glitter glaze paste;

[0088] According to the raw material composition of the glitter glaze, glitter powder, high-calcium dry granules, protective powder, and water are mixed evenly to prepare a glitter glaze slurry.

[0089] The glitter glaze that forms the glitter glaze layer comprises, by weight, the following raw materials:

[0090] 30 parts glitter powder, 10 parts high-calcium dry granules, and 1 part protective powder; the particle size of the high-calcium dry granules is 0.1-0.15 mm.

[0091] The glitter powder, by weight, comprises the following raw materials:

[0092] 5 parts iron oxide, 5 parts manganese oxide, 5 parts copper carbonate, 5 parts cobalt oxide, and 10 parts phosphor.

[0093] S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer;

[0094] S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer.

[0095] S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

[0096] Example 2

[0097] A method for preparing locally positioned micro-light marble ceramic tiles includes the following steps:

[0098] S1. Press the body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body; the amount of glaze applied is 65g to form a glaze layer;

[0099] The surface glaze layer is obtained by mixing the various raw materials of the surface glaze with water to obtain a slurry with a specific gravity of 1.84-1.88 g / ml;

[0100] The glaze material forming the glaze layer comprises, by weight, the following raw materials:

[0101] 30 parts quartz, 30 parts feldspar, 15 parts kaolin, 15 parts limestone, 15 parts calcite, 8 parts talc, 5 parts zinc oxide, and 5 parts borax.

[0102] S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern;

[0103] S3. Preparation of glitter glaze paste;

[0104] According to the raw material composition of the glitter glaze, glitter powder, high-calcium dry granules, protective powder, and water are mixed evenly to prepare a glitter glaze slurry.

[0105] The glitter glaze that forms the glitter glaze layer comprises, by weight, the following raw materials:

[0106] 50 parts glitter powder, 30 parts high-calcium dry granules, and 3 parts protective powder; the particle size of the high-calcium dry granules is 0.1-0.15 mm.

[0107] The glitter powder, by weight, comprises the following raw materials:

[0108] 8 parts iron oxide, 8 parts manganese oxide, 8 parts copper carbonate, 8 parts cobalt oxide, and 18 parts phosphor.

[0109] S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer;

[0110] S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer.

[0111] S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

[0112] Example 3

[0113] A method for preparing locally positioned micro-light marble ceramic tiles includes the following steps:

[0114] S1. Press the body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body; the amount of glaze applied is 65g to form a glaze layer;

[0115] The surface glaze layer is obtained by mixing the various raw materials of the surface glaze with water to obtain a slurry with a specific gravity of 1.84-1.88 g / ml;

[0116] The glaze material forming the glaze layer comprises, by weight, the following raw materials:

[0117] 25 parts quartz, 25 parts feldspar, 13 parts kaolin, 10 parts limestone, 11 parts calcite, 7 parts talc, 4 parts zinc oxide, and 4 parts borax.

[0118] S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern;

[0119] S3. Preparation of glitter glaze paste;

[0120] According to the raw material composition of the glitter glaze, glitter powder, high-calcium dry granules, protective powder, and water are mixed evenly to prepare a glitter glaze slurry.

[0121] The glitter glaze that forms the glitter glaze layer comprises, by weight, the following raw materials:

[0122] 40 parts of glitter powder, 20 parts of high-calcium dry granules, and 2 parts of protective powder; the particle size of the high-calcium dry granules is 0.1-0.15mm.

[0123] The glitter powder, by weight, comprises the following raw materials:

[0124] 7 parts iron oxide, 7 parts manganese oxide, 7 parts copper carbonate, 7 parts cobalt oxide, and 12 parts phosphor.

[0125] S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer;

[0126] S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer.

[0127] S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

[0128] Example 4

[0129] A method for preparing locally positioned micro-light marble ceramic tiles includes the following steps:

[0130] S1. Press the body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body; the amount of glaze applied is 65g to form a glaze layer;

[0131] The surface glaze layer is obtained by mixing the various raw materials of the surface glaze with water to obtain a slurry with a specific gravity of 1.84-1.88 g / ml;

[0132] The glaze material forming the glaze layer comprises, by weight, the following raw materials:

[0133] 20 parts quartz, 30 parts feldspar, 10 parts kaolin, 15 parts limestone, 8 parts calcite, 8 parts talc, 3 parts zinc oxide, and 5 parts borax.

[0134] S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern;

[0135] S3. Preparation of glitter glaze paste;

[0136] According to the raw material composition of the glitter glaze, glitter powder, high-calcium dry granules, protective powder, and water are mixed evenly to prepare a glitter glaze slurry.

[0137] The glitter glaze that forms the glitter glaze layer comprises, by weight, the following raw materials:

[0138] 35 parts glitter powder, 30 parts high-calcium dry granules, and 1 part protective powder;

[0139] The glitter powder, by weight, comprises the following raw materials:

[0140] 6 parts iron oxide, 6 parts manganese oxide, 6 parts copper carbonate, 6 parts cobalt oxide, and 11 parts phosphor.

[0141] S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer;

[0142] S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer.

[0143] S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

[0144] Comparative Example 1

[0145] A method for preparing marble ceramic tiles includes the following steps:

[0146] The glitter glaze slurry does not contain high-calcium dry particles, and the other conditions are the same as in Example 1.

[0147] Comparative Example 2

[0148] A method for preparing marble ceramic tiles includes the following steps:

[0149] The glitter glaze contains no protective powder, and all other conditions are the same as in Example 1.

[0150] Comparative Example 3

[0151] A method for preparing marble ceramic tiles includes the following steps:

[0152] In the glitter glaze slurry, the particle size of the high-calcium dry particles is 0.25-0.85 mm, and the other conditions are the same as in Example 1.

[0153] The ceramic tile semi-finished products prepared in Examples 1-4 and Comparative Examples 1-3 were subjected to performance tests on stain resistance, glaze effect, water absorption rate, and tile surface effect. The specific testing methods or processes are as follows:

[0154] Glaze effect and brick surface effect: Observe with the naked eye to see if there are impurities or carbon bubbles on the brick surface, and whether the brick pattern is clear.

[0155] Stain resistance test: Use a blue marker to draw lines repeatedly at the four corners and the center of the tile. After the ink dries, wash with hand soap and water. Repeat this process three times and check if there are any marks left on the marked areas.

[0156] Water absorption rate: Tested using a ceramic water absorption rate tester.

[0157] The relevant test results are summarized in Table 1 below:

[0158] Table 1

[0159]

[0160]

[0161] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A marble ceramic tile with locally positioned micro-gloss, comprising a body, characterized in that, It also includes a glaze layer, a shimmering glaze layer, and a protective glaze layer that are sequentially attached to the body; The glitter glaze that forms the glitter glaze layer comprises, by weight, the following raw materials: 30-50 parts glitter powder, 10-30 parts high-calcium dry granules, and 1-3 parts protective powder; The glitter powder, by weight, comprises the following raw materials: 5-8 parts iron oxide, 5-8 parts manganese oxide, 5-8 parts copper carbonate, 5-8 parts cobalt oxide, 10-18 parts phosphor; The high-calcium dry granules comprise the following chemical composition by weight percentage: SiO2: 40-48%, Al2O3: 25-32%, CaO: 20-25%, MgO: 0.08-1.2%, K2O: 0.3-0.4%, Na2O: 1.5-2.2%, TiO2: 0.02-0.1%; The high-calcium dry granules have a particle size of 0.1-0.15 mm; The protective powder comprises the following chemical composition in weight percentage: SiO2: 42.74%, Al2O3: 22.38%, Fe2O3: 0.17%, TiO2: 0.06%, CaO: 8.01%, MgO: 4.36%, K2O: 3.05%, Na2O: 0.96%, BaO: 4.95%, loss on ignition 11.89%.

2. The marble-look ceramic tile according to claim 1, characterized in that, The glaze material forming the glaze layer comprises, by weight, the following raw materials: Quartz 20-30 parts, feldspar 20-30 parts, kaolin 10-15 parts, limestone 8-15 parts, calcite 8-15 parts, talc 5-8 parts, zinc oxide 3-5 parts, borax 3-5 parts.

3. The marble ceramic tile according to claim 1, characterized in that, The protective powder forming the protective glaze layer comprises the following chemical composition in weight percentages: SiO2: 42.74%, Al2O3: 22.38%, Fe2O3: 0.17%, TiO2: 0.06%, CaO: 8.01%, MgO: 4.36%, K2O: 3.05%, Na2O: 0.96%, BaO: 4.95%, loss on ignition 11.89%.

4. A method for preparing locally positioned micro-light marble ceramic tiles according to any one of claims 1-3, characterized in that, Includes the following steps: S1. Press the ceramic body powder into shape to obtain a ceramic body, send the ceramic body into a drying kiln to dry, and apply a glaze slurry to the surface of the dried ceramic body to form a glaze layer; S2. Inkjet printing is performed on the surface of the ceramic body after glazing to form a pattern; S3. Preparation of glitter glaze paste; S4. The glitter enamel paste is printed onto the pattern using a screen printing machine to form a glitter layer; S5. The protective glaze is printed onto the glitter layer using a screen printing machine; thus forming the protective glaze layer. S6. The ceramic body with a protective glaze layer obtained in step S5 is fired at a temperature of 1220-1240℃ to obtain a marble tile semi-finished product.

5. The preparation method according to claim 4, characterized in that, In step S3, the preparation of the glitter glaze paste involves mixing glitter powder, high-calcium dry granules, protective powder, and water evenly according to the raw material composition of the glitter glaze to prepare the glitter glaze paste.

6. The preparation method according to claim 4, characterized in that, In step S1, the glaze slurry has a specific gravity of 1.84-1.88 g / ml and the glaze application amount is 65 g.

7. The preparation method according to claim 4, characterized in that, In step S5, the specific gravity of the protective glaze slurry is 1.56-1.60 g / ml, and the glaze application amount is 180-200 g.

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