Ceramics with branched and spotted texture glaze effects and preparation method thereof

Abstract

The present invention relates to the field of ceramics and their preparation processes, and more specifically to a ceramic with a branched and spotted textured glaze effect and a preparation method thereof. The inner wall of the body is covered with an inner glaze layer, and the outer wall is covered with a cosmetic soil layer and an outer glaze layer, sequentially from the inside out. The inner glaze layer is covered with colorful diffused spots, and the outer glaze layer is covered with black spots. After firing, the ceramic has a white base glaze on the inside with branched moss patterns, and a yellow base glaze on the outside with black spots, creating a unique artistic aesthetic. The appropriate proportion of industrial gelatin and glycerin in the white decorative glaze can reduce the rate at which water in the glaze is absorbed by the body, thereby maintaining a suitable moisture content before and after the colorant is added, allowing the colorant to diffuse into an ideal form. The iron ions in the cosmetic soil undergo a phase change, causing blackening, thereby forming black spots on the yellow glaze.

Description

Technical Field

[0001] The invention relates to the field of ceramics and preparation processes thereof, and in particular to ceramics with branched and spotted texture glaze effects and a preparation method thereof. Background Art

[0002] Glaze is a mixture of glass and crystals, a continuous layer of vitreous material applied to the surface of a ceramic body. There are numerous types of porcelain glazes, including overglaze, underglaze, and celadon. Glazes may have originated from calcium-containing stones and charcoal ash used in ancient stone-heaping cooking, or they may have been intentionally made from shell powder, inspired by the beautiful texture of shells. Later, painting emerged, using specially formulated pigments to create designs, patterns, and images on porcelain to enhance its aesthetic appeal. Special colored materials are used to draw patterns, decorations and pictures on porcelain to increase the beauty of the objects and improve their artistic value. This process is called "painting". Among them, overglaze color is painted on the fired porcelain and then baked in the brocade kiln. Because the picture is on the glaze, it is easy to fade and discolor after use, friction, and contact with acids and alkalis; while "underglaze color" refers to painting under the glaze, that is, after painting on the body, a layer of colorless and transparent glaze is covered, and it is fired at a high temperature of about 1300 degrees Celsius at the same time as the porcelain. Its characteristics are bright and soft colors, light and elegant. At the same time, the color is under the glaze and is not easy to wear or discolor. However, both overglaze and underglaze colors are painted by hand-painting. The traces of artificial painting are too obvious and deliberate, and they do not have a natural beauty. In view of this, this case came into being. Summary of the Invention

[0003] An object of the present invention is to solve at least the above problems by providing a ceramic having a branched and spotted textured glaze effect and a method for preparing the same.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a ceramic with a branched and spotted textured glaze effect, including a body with a container structure, the inner wall of the body is covered with an inner glaze layer, and the outer wall is covered with a cosmetic soil layer and an outer glaze layer from the inside to the outside, the inner glaze layer is distributed with colored diffused spots, and the outer glaze layer is distributed with black spots.

[0005] Preferably, the raw materials of the green body include the following components in parts by weight: 30-40 parts of kaolin, 15-20 parts of laterite, 20-30 parts of potassium feldspar, 15-20 parts of quartz, 10-12 parts of talc, and 5-8 parts of limestone.

[0006] Preferably, the raw material of the inner glaze layer is white decorative glaze, and the raw materials of the white decorative glaze include the following components in parts by weight: 20-30 parts of silicon dioxide, 20-30 parts of nepheline orthoclase, 15-18 parts of borate, 13-15 parts of talc, 7-9 parts of calcium carbonate, 6-9 parts of kaolin, 3-5 parts of zinc oxide, 4-6 parts of rutile, 3-4 parts of industrial gelatin, and 2-3 parts of glycerin.

[0007] Preferably, the raw material of the colored diffuse spots is a colorant, and the raw materials of the colorant include the following components in parts by weight: 10-12 parts of coloring oxide, 18-20 parts of apple cider vinegar, 6-10 parts of nail polish remover, and 5-6 parts of ultraviolet light curing glue.

[0008] Preferably, the raw material of the cosmetic soil layer is cosmetic soil, and the raw materials of the cosmetic soil include the following components in parts by weight: 30-40 parts of kaolin, 15-20 parts of red clay, 30-40 parts of potassium feldspar, 15-20 parts of quartz, 5-8 parts of limestone, 5-6 parts of dolomite, and 5-6 parts of basalt.

[0009] Preferably, the raw materials of the transparent glaze include the following components in parts by weight: 20-30 parts of quartz stone, 20-30 parts of borax, 15-20 parts of feldspar, 6-8 parts of dolomite, 10-13 parts of china clay, and 3-6 parts of zinc oxide.

[0010] The method for preparing the ceramic with the branched and spotted texture glaze effect comprises the following steps:

[0011] Step a, preparing a green body of a container structure, and drying the green body;

[0012] Step b, preparing a colorant;

[0013] Step c, applying a layer of cosmetic soil on the outer wall of the green body;

[0014] Step d, applying transparent glaze on the outer wall of the cosmetic soil;

[0015] Step e: applying white decorative glaze to the inner wall of the blank. After the white decorative glaze completely covers the inside of the blank, pour out the excess white decorative glaze and wipe off the excess white decorative glaze on the edge of the blank with a sponge.

[0016] Step f, dripping colorant onto the white decorative glaze;

[0017] Step g, glaze firing in a kiln; the firing temperature of the glaze firing is 1150-1200 degrees Celsius, and the glaze firing is maintained in a reducing atmosphere for 3-4 hours, and then the temperature is lowered to 800 degrees Celsius in a reducing atmosphere, and then naturally cooled.

[0018] Preferably, in step b, apple cider vinegar, nail polish remover and UV curing glue are added to a stirring container, and then a coloring oxidant is added and stirred in the dark. After stirring evenly, the mixture is sealed for standby use, and stirred again before adding the colorant.

[0019] Preferably, in the step c, the raw material of the cosmetic soil and water are mixed and stirred in a mass ratio of 2:1 to prepare a cosmetic soil slurry, the opening of the green body is upward and immersed in the cosmetic soil slurry in a suspended manner, the edge of the green body is 3-5 mm higher than the cosmetic soil slurry, and a heating rod is inserted into the interior of the green body to heat the green body. The cosmetic soil slurry is adsorbed on the outer surface of the green body to form a cosmetic soil layer. After the green body is taken out, the cosmetic soil layer is finally dried.

[0020] Preferably, in step f, the colorant is sucked with a dropper and dropped into the white decorative glaze from a height of 2-3 cm above the white decorative glaze. The colorant branches and diffuses in the white decorative glaze, and diffuses outward with the drop point as the center to form branch-like patterns. The body is then placed in a dryer for drying. An ultraviolet lamp is provided on the top of the dryer to irradiate the interior of the body.

[0021] From the above description, it can be seen that the ceramics with branched and spotted textured glaze effects and the preparation method thereof provided by the present invention have the following beneficial effects: after the ceramics are fired, the inside is a white base glaze with branched moss patterns distributed on it; the outside is a yellow base glaze with black spots distributed on it, and the overall appearance is unique in artistic beauty; the appropriate proportion of industrial gelatin and glycerin in the white decorative glaze can reduce the rate at which water in the glaze is absorbed by the body, so that the white decorative glaze can maintain a suitable moisture content before and after the colorant is dripped, thereby allowing the colorant to diffuse into an ideal form; the dolomite and basalt with larger particle sizes in the cosmetic soil are kept warm at high temperature for a long time in a reducing atmosphere, and the variable-valence iron ions are reduced to low-valence ions, and the iron ions undergo a phase change, causing blackening, thereby forming black spots on the yellow glaze. DETAILED DESCRIPTION

[0022] The present invention is further described below through specific embodiments.

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] The present invention provides a ceramic body with a branched and speckled textured glaze effect, comprising a container-like body, the inner wall of the body being covered with an inner glaze layer, and the outer wall being covered with a cosmetic soil layer and an outer glaze layer, sequentially from the inside out. The inner glaze layer is covered with diffused colored spots, and the outer glaze layer is covered with black spots. After firing, the ceramic body is coated with a white base glaze on the inside with branched moss patterns, and a yellow base glaze on the outside with black spots. The branched moss patterns on the inner wall of the body are formed by the natural diffusion of tension during the base glazing process, while the black spots on the outer wall are naturally revealed during the glazing process. As a result, the texture inside and outside the body is naturally aesthetically pleasing, with smooth transitions at the edges, unlike painted patterns that exhibit overt traces of artificial painting.

[0025] The raw materials of the green body include the following components by weight: 30-40 parts of kaolin, 15-20 parts of red clay, 20-30 parts of potassium feldspar, 15-20 parts of quartz, 10-12 parts of talc, and 5-8 parts of limestone. The red clay is introduced into the green body, and the green body itself turns light yellow after firing.

[0026] The inner glaze layer is made of a white decorative glaze. The raw materials for the white decorative glaze include the following components, by weight: 20-30 parts silica, 20-30 parts nepheline orthoclase, 15-18 parts borate, 13-15 parts talc, 7-9 parts calcium carbonate, 6-9 parts kaolin, 3-5 parts zinc oxide, 4-6 parts rutile, 3-4 parts industrial gelatin, and 2-3 parts glycerin. This white decorative glaze exhibits a white, opalescent effect. The appropriate proportion of industrial gelatin and glycerin reduces the rate at which water in the white decorative glaze is absorbed by the body. This allows the glaze to maintain an appropriate moisture content before and after the colorant is applied, allowing the colorant to diffuse into an ideal form.

[0027] The raw materials for the colored diffuse spots are colorants. The raw materials, by weight, include the following: 10-12 parts of coloring oxide, 18-20 parts of apple cider vinegar, 6-10 parts of nail polish remover, and 5-6 parts of UV curing adhesive. The coloring oxides include cobalt oxide for a dark blue color, manganese dioxide for a dark brown color, and chromium oxide for a green color. Different colored oxides can be added as needed to create diffused spots of varying colors within the same ceramic. Adding apple cider vinegar and nail polish remover to the colorant reduces its surface tension. When the colorant with a lower surface tension is dropped onto the white decorative glaze with a higher surface tension, the imbalance in surface tension drives the surface liquid outward, forming outward-diffusing branching patterns. These patterns branch outward from the point of incorporation, continuously branching outward and resembling a moss-like texture.

[0028] The raw materials for the encaustic layer are encaustic, which, in parts by weight, include the following: 30-40 parts kaolin, 15-20 parts laterite, 30-40 parts potassium feldspar, 15-20 parts quartz, 5-8 parts limestone, 5-6 parts dolomite, and 5-6 parts basalt. The encaustic's raw material composition is similar to that of the green body, with the addition of larger-sized dolomite and basalt. The dolomite and basalt in the encaustic are crushed to 30-50 mesh, resulting in a coarse particle size and high iron content. When these dolomite and basalt are kept at high temperature for a long time in a reducing atmosphere, the variable-valent iron ions are reduced to low-valent ions, causing a phase change in the iron ions, resulting in blackening. This forms black spots on the yellow glaze, resembling fruit peel. As a result, the ceramic's outer wall is characterized by a yellow-skinned, black-spotted surface. Compared to traditional painted spots, these spots are naturally distributed and have blurred boundaries, creating a natural aesthetic.

[0029] The raw materials of the transparent glaze include the following components in parts by weight: 20-30 parts of quartz stone, 20-30 parts of borax, 15-20 parts of feldspar, 6-8 parts of dolomite, 10-13 parts of china clay and 3-6 parts of zinc oxide.

[0030] A method for preparing a ceramic having a branched and spotted textured glaze effect comprises the following steps:

[0031] Step a, preparing a green body of a container structure, and drying the green body;

[0032] Step b, preparing a colorant;

[0033] Step c, applying a layer of cosmetic soil on the outer wall of the green body;

[0034] Step d, applying transparent glaze on the outer wall of the cosmetic soil;

[0035] Step e: Apply white decorative glaze to the inner wall of the blank. After the white decorative glaze completely covers the interior of the blank, pour out the excess white decorative glaze and wipe off the excess white decorative glaze on the edge of the blank with a sponge. The moisture content of the glaze is 23-25%. The white decorative glaze should not be too thick, otherwise the colorant cannot diffuse in the white decorative glaze to form a texture, nor should it be too thin, otherwise the colorant diffuses too quickly, resulting in unclear texture outlines and faded color.

[0036] Step f, dripping colorant onto the white decorative glaze;

[0037] Step g: Glaze firing in a kiln. The glaze firing temperature is 1150-1200°C, maintained in a reducing atmosphere, and held for 3-4 hours. The temperature is then lowered to 800°C in a reducing atmosphere and allowed to cool naturally. The reducing atmosphere promotes the formation of black spots on the outer wall of the body, while the reduced temperature ensures that the black spots do not disappear during subsequent firing.

[0038] In step b, apple cider vinegar, nail polish remover, and UV curing agent are added to a stirring container, followed by the addition of a coloring oxidant and stirring in the dark. After stirring evenly, the container is sealed and set aside for later use. Stirring is then repeated before adding the coloring agent. The apple cider vinegar and nail polish remover are used to dilute the coloring agent and reduce its surface tension. The UV curing agent is used to quickly set the branched texture during the drying stage. Therefore, the prepared coloring agent needs to be stirred and stored in the dark.

[0039] In step c, the raw material of makeup soil and water are mixed and stirred according to the mass ratio of 2: 1, and makeup soil slurry is obtained. The opening of the blank is upward, immersed in the makeup soil slurry in a suspended manner, and the rim of the blank is 3-5 millimeters higher than the makeup soil slurry, and the inside of the blank extends into a heating rod, and the blank is heated. The makeup soil slurry is adsorbed on the outer surface of the blank, and a makeup soil layer is formed. After taking out the blank, the makeup soil layer is finally dried. The inside of the blank passes through the heating of the heating rod so that a humidity difference is formed inside and outside the blank, promotes the adsorption of makeup soil slurry on the outer wall of the blank, so as to accelerate the forming speed of the makeup soil layer and the bonding degree with the blank, the blank is formed in the manner of soaking and adsorption. The surface of the makeup soil layer formed by it is smoother relative to the manner of applying makeup soil, and uneven texture will not be produced, so the final outer glaze of ceramics is smooth and tidy.

[0040] In step f, a colorant is drawn up with a dropper and dripped into the white decorative glaze from a height of 2-3 cm above the glaze. The colorant branches and diffuses within the white decorative glaze, spreading outward from the point of instillation, forming branching patterns. The glaze is then dried in a dryer equipped with an ultraviolet lamp to irradiate the interior of the base body. The addition of apple cider vinegar and nail polish remover to the colorant reduces its surface tension. When the colorant with lower surface tension is dripped onto the white decorative glaze with higher surface tension, the imbalance in surface tension drives the surface liquid outward, thereby forming outward-diffusion patterns. These patterns spread outward from the drop point, continuously forming forked, moss-like branching patterns, which have a unique artistic aesthetic and, unlike traditional hand-painted patterns, possess a natural aesthetic. The key to controlling the stability of the generation of branch-like patterns lies in the following points: 1. Controlling the moisture content of the white decorative glaze to give it an appropriate viscosity. The appropriate proportion of industrial gelatin and glycerin can reduce the rate at which water in the white decorative glaze is absorbed by the body, so that the white decorative glaze can maintain an appropriate moisture content and viscosity for a longer period of time. 2. The colorant is pre-mixed with apple cider vinegar and nail polish remover to reduce the viscosity of the colorant and reduce the surface tension of the colorant. 3. The colorant is dripped into the white decorative glaze at an appropriate height. 4. During the drying process of the white decorative glaze and the branch-like patterns, the UV light-curing glue in the colorant is promoted to transform from liquid to solid through the auxiliary irradiation of ultraviolet lamps, thereby greatly limiting the further diffusion of the colorant and preventing the branch-like patterns from blurring during the drying process. Subsequently, the branch-like patterns and white decorative glaze are completely fixed through drying.

[0041] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A method for preparing a ceramic having a branched and spotted texture glaze effect, characterized in that: The steps include: Step a, preparing a green body of a container structure, and drying the green body; Step b, preparing a colorant; Step c, applying a layer of cosmetic soil on the outer wall of the green body; Step d, applying transparent glaze on the outer wall of the cosmetic soil; Step e: applying white decorative glaze to the inner wall of the blank. After the white decorative glaze completely covers the inside of the blank, pour out the excess white decorative glaze and wipe off the excess white decorative glaze on the edge of the blank with a sponge. Step f, dripping colorant onto the white decorative glaze; Step g, glaze firing in a kiln; the firing temperature of the glaze firing is 1150-1200 degrees Celsius, the glaze firing is maintained in a reducing atmosphere, and the temperature is kept for 3-4 hours, and then the temperature is lowered to 800 degrees Celsius in a reducing atmosphere, and then naturally cooled; The ceramic with a branched and spotted textured glaze effect comprises a body with a container structure, wherein the inner wall of the body is covered with an inner glaze layer, and the outer wall is covered with a cosmetic soil layer and a transparent glaze in order from the inner to the outer side, the inner glaze layer is distributed with colored diffuse spots, and the transparent glaze is distributed with black spots; the raw material for the colored diffuse spots is a colorant, and the raw materials of the colorant include the following components in parts by weight: 10-12 parts of coloring oxide, 18-20 parts of apple vinegar, 6-10 parts of nail polish remover, and 5-6 parts of ultraviolet light curing glue; The raw material of the inner glaze layer is white decorative glaze, and the raw materials of the white decorative glaze include the following components in parts by weight: 20-30 parts of silicon dioxide, 20-30 parts of nepheline orthoclase, 15-18 parts of borate, 13-15 parts of talc, 7-9 parts of calcium carbonate, 6-9 parts of kaolin, 3-5 parts of zinc oxide, 4-6 parts of rutile, 3-4 parts of industrial gelatin, and 2-3 parts of glycerin.

2. The method for preparing a ceramic having a branched and spotted textured glaze effect according to claim 1, wherein: The raw materials of the green body include the following components in parts by weight: 30-40 parts of kaolin, 15-20 parts of red clay, 20-30 parts of potassium feldspar, 15-20 parts of quartz, 10-12 parts of talc, and 5-8 parts of limestone.

3. The method for preparing a ceramic having a branched and spotted textured glaze effect according to claim 1, wherein: The raw material of the cosmetic soil layer is cosmetic soil, which includes the following components in parts by weight: 30-40 parts of kaolin, 15-20 parts of red clay, 30-40 parts of potassium feldspar, 15-20 parts of quartz, 5-8 parts of limestone, 5-6 parts of dolomite, and 5-6 parts of basalt.

4. The method for preparing a ceramic having a branched and spotted textured glaze effect according to claim 1, wherein: The raw materials of the transparent glaze include the following components in parts by weight: 20-30 parts of quartz stone, 20-30 parts of borax, 15-20 parts of feldspar, 6-8 parts of dolomite, 10-13 parts of china clay, and 3-6 parts of zinc oxide.

5. The method for preparing a ceramic having a branched and spotted textured glaze effect according to claim 1, characterized in that: In the step b, apple cider vinegar, nail polish remover and ultraviolet light curing glue are added to a stirring container, and then a coloring oxidant is added and stirred in the dark. After stirring evenly, the mixture is sealed for later use, and stirred again before adding the coloring agent.

6. The method for preparing a ceramic having a branched and spotted textured glaze effect according to claim 1, characterized in that: In the step c, the raw material of the cosmetic soil and water are mixed and stirred in a mass ratio of 2:1 to prepare a cosmetic soil slurry, the opening of the green body is upward and immersed in the cosmetic soil slurry in a suspended manner, the edge of the green body is 3-5 mm higher than the cosmetic soil slurry, a heating rod is inserted into the interior of the green body to heat the green body, the cosmetic soil slurry is adsorbed on the outer surface of the green body to form a cosmetic soil layer, and after the green body is taken out, the cosmetic soil layer is finally dried.

7. The method for preparing a ceramic having a branched and spotted textured glaze effect according to claim 1, characterized in that: In the step f, a colorant is sucked with a dropper and dropped into the white decorative glaze from a height of 2-3 cm above the white decorative glaze. The colorant branches and diffuses in the white decorative glaze, spreading outward with the drop point as the center to form branched patterns. The body is then placed in a dryer for drying. An ultraviolet lamp is provided on the top of the dryer to irradiate the interior of the body.