162 results about "Underglaze" patented technology

The invention discloses white-ground piebald composite tang jun glaze and a process of preparing jun porcelain with the same. A porcelain body material is smashed and molded firstly, plain porcelain body firing is conducted, then a plain porcelain body is dipped in white-ground glaze slurry for glazing, local spot application of piebald glaze slurry is conducted on the surface of the plain porcelain body after the white-ground glaze slurry attached to the surface of the plain porcelain body is dried in the air, the plain porcelain body is placed in a kiln to be fired after the piebald glaze slurry is dried in the air, and then the white-ground piebald composite tang jun glaze jun porcelain is obtained. According to the white-ground piebald composite tang jun glaze and the process of preparing the jun porcelain with the same, by adding zirconite to the formula of white-ground glaze, opacified white glaze is generated during firing; furthermore, secondary glazing is adopted to fix the position of piebald glaze; the coloring technology of overglaze or underglaze adopted for general piebald porcelain is replaced, and the economic value of the jun porcelain is increased through innovation in glazing color and coatings; furthermore, as a characteristic of China, the jun porcelain represents the advanced manufacturing technology of China, and the social value of the jun porcelain is increased.

The invention relates to a pigment pencil for underglaze painting of ceramics and an application method of the pigment pencil. The pigment pencil for the underglaze painting of the ceramics is made up of a penholder and a refill, wherein the refill is prepared from the materials in percentage by weight: 70% to 90% of high-temperature underglaze painting pigment for ceramics, 5% to 30% of paraffin and 2% to 8% of clay. According to the pigment pencil for the underglaze painting of the ceramics, provided by the invention, the traditional underglaze painting pigment for ceramics is processed into a pencil refill structure which is convenient to operate, and a writing-brush underglaze painting mode, which is hard to master, is improved into a pencil painting mode which is common in daily lives, so that the material category and mode of expression of the underglaze painting of the ceramics are enriched. According to the pigment pencil for the underglaze painting of the ceramics, provided by the invention, the use in basic instruction of the ceramics is better facilitated, the popularization rate is high, the pigment pencil is simple and convenient in operation, is smooth and clear, is not prone to falling and is durable in stability, and the transition of a ceramics underglaze painting process to the pigment-pencil-for-the-underglaze-painting-of-the-ceramics, i.e., hard-pen convenient operating process from a writing-brush-dipping-pigment soft-pen tedious operating process is achieved.

The invention relates to a manufacture method of a non-aqueous printing ink wet underglaze colour self-sharpening polishing ceramic glazed tile. The manufacture method is characterized by comprising the following steps of proportioning raw materials, ball milling, iron removal, spraying pulverizing, compacting for moulding, biscuiting, wet underglaze colour decoration, glaze firing, self-sharpening polishing and edging. The self-polishing is as below: in order to prevent passivation of a resin polishing grinding head on a smooth glaze, during normal polishing operation, a ceramic glazed tile product to be polished is added with a rough surface body to be polished; the rough surface body to be polished rubs the polishing grinding head to keep the grinding head sharp. The method has advantages that produced polishing ceramic glazed tile has high strength, brilliant color, rich pattern texture of a ceramic tile as well as high surface flatness and good glossiness of a polishing product. Meanwhile, a production technology has advantages of simple process, low production cost, short sintering period, low energy consumption and simple polishing technology, and is suitable for large-scale production and demand of common consumers.

The invention discloses a black background-white spot composite Tang jun glaze, and a method used for producing jun porcelain with the black background white spot composite Tang jun glaze. According to the method, a ceramic body raw material is subjected to smashing, moulding, and sintering so as to obtain unglazed porcelain bodies; the unglazed porcelain bodies are immersed into a black background glaze slurry for glazing; after airing of the black background glaze slurry on the surfaces of the unglazed porcelain bodies, the surfaces of the unglazed porcelain bodies are coated with a white spot glaze slurry via spot application; after airing, the obtained unglazed porcelain bodies are delivered into a kiln for sintering so as to obtain the black background-white spot composite Tang jun glaze jun porcelain. According to the black background-white spot composite Tang jun glaze and the method, iron element is added into a black priming glaze at a certain ratio; secondary glazing is adopted; the positions of white sport glaze are immobilized; talc powder and bone meal are added into the black background-white spot composite Tang jun glaze at a certain ratio, so that glaze layer crackles are uniform, and cracking is not easily caused. Overglaze color or underglaze color generally adopted in conventional speckle porcelain production is not adopted in the method, so that economic value of jun porcelain is increased via innovation on glazing color and coating; jun porcelain is a featured product of our country, so that the method is used for reflecting advanced technology of China, and social value of jun porcelain is increased.

The invention relates to a high temperature resistant pearlescent pigment including a synthetic mica substrate, one layer or multi layers of metal oxide layer coating the synthetic mica substrate, and a zirconia high temperature resistant layer coating the metal oxide layer. The high temperature resistant pearlescent pigment using high temperature is up to 1150 DEG C, the high temperature resistant pearlescent pigment can be stably and well dispersed at high temperature, and can be widely used in underglaze color, in-glaze color, overglaze color, enamel, enamel paper transfers, architectural enamel plates, permanent color scales, high temperature resistant paints and other industries, and the usage amount is 0.5 ~ 50% of that of a glaze or a coating.

The present invention discloses one kind of bright red underglaze color, one kind of overglaze and their preparation process. The bright red underglaze color consists of stabilizer, 0.02-34 wt%, silica 11.3-56 wt%, lead oxide 2.4-27 wt%, cadmium sulfoselenide 2-20 wt%, Al2O3 1.7-27 wt%, B2O3 1.5-27 wt%, CrO2 0.3-32 wt%, GeO2 0.08-33 wt%, MgO 1.4-13 wt%, CaO 0.7-15 wt%, Li2O 0.7-13.2 wt%, K2O 1-7 wt% and NaO 1-5.3 wt%; and the overglaze consists of clinker 5-55 wt%, ZnO 3-12 wt%, albite 5-30 wt%, potash feldspar 7-35 wt%, baked talc 2-16 wt%, silica 2-18 wt%, and kaolin 2-26 wt%. The bright red underglaze color and the overglaze have pure color and very low Pb and Cd leaching amount.

The invention relates to the technical field of manufacturing of ceramics, in particular to kiln-variable underglaze color material and a manufacturing process of ceramics with the kiln-variable underglaze color material. The kiln-variable underglaze color material comprises raw mineral material and water, the raw mineral material is composed of feldspar, quartz, kaolin, titanium dioxide, iron trioxide and inorganic colors, and the ratio of the raw mineral material to the water is 3-4:1. In the manufacturing process of the ceramics made from the kiln-variable underglaze color material, the kiln-variable underglaze color material containing multiple coloring elements undergoes oxidation and reduction to react through temperature variable of a furnace in firing, colorful kiln-variable effectis formed under the transparent glaze layer, and the ceramics decorated with the kiln-variable material are quite unique and wonderful; by the arrangement, a brand-new ceramic variety is provided, and positive significance and economic benefits are achieved for promoting the development of ceramic products.

The invention provides black-base mottled composite Tang jun glaze and a process for preparing jun porcelain through the black-base mottled composite Tang jun glaze. Firstly, base raw materials are smashed and molded, a plain base is fired, the plain base is immersed in slurry of black-base glaze for glazing, after the slurry of the black-base glaze is attached to the surface of the plain base and the plaint base is aired, slurry of mottled glaze is arranged on part of the surface of the plain base in a spot application mode, the plain base is placed in a kiln to be fired after being aired, and then the black-base mottled composite Tang jun glaze jun porcelain is obtained. According to the black-base mottled composite Tang jun glaze and the process for preparing the jun porcelain through the black-base mottled composite Tang jun glaze, an iron element at a specific ratio is added to the black-base glaze, black glaze which is stable in color generation, uniform in color and luster and rich in jade texture feeling is obtained through high-temperature firing, the mottled glaze is fixed in a secondary glazing mode, an overglaze color or underglaze color coloring process adopted by ordinary mottled porcelain is broken through, the economic value of the jun porcelain is increased through innovation in glaze colors and coatings, the jun porcelain stands for the feature of China and also represents the advanced level of the craftsmanship in China, and the social value of the jun porcelain is increased.

The invention discloses a method for preparing underglaze bone china, which comprises the following production steps: preparing a bone china material into a blank; performing high temperature biscuit firing on the blank, wherein the temperature of the biscuit firing is between 1,250 and 1,280 DEG C; performing color painting on a product after the biscuit firing, wherein the pigment used by the color painting is prepared from the following compositions by weight percentage: 65 to 75 percent of colorradical and 25 to 35 percent of glaze; performing high temperature color firing on the product after the color painting, and the temperature of the color firing is between 1,200 and 1,250 DEG C; and glazing the product after the high temperature color firing with the same glaze in the pigment, and performing medium temperature glaze firing to prepare a finished product, wherein the temperature of the glaze firing is between 1,050 and 1,150 DEG C. The underglaze bone china prepared by the method has clear color painting patterns, strong stereovision, and rich, fresh and bright color of the color painting patterns, smooth, neat and delicate glaze and high firing rate.

A manufacturing method for a ceramic surface decoration layer is characterized in that: the method comprises the following steps of: (1) making decorations on a ceramic piece through an underglaze blue and white pigment; (2) drying the underglaze blue and white pigment on the ceramic piece by baking; (3) applying or spraying three-dimensional crystalline art glaze on the underglaze blue and white pigment on the ceramic piece; (4) heating the ceramic piece to 1300 to 1320 DEG C in an oxidative atmosphere, and then quickly reducing the temperature to 1130 DEG C; (5) keeping the ceramic at the temperature of 1130 DEG C for 1.5 to 2 hours and then naturally cooling down the ceramic piece through extinguishing fire. Compared with the prior art, the method has the advantages that: the ceramic surface decoration layer manufactured through the method has the underglaze blue and white pigment blending under the three-dimensional crystalline art glaze; the underglaze blue and white pigment has a blue and smooth color with high clearness and can be used for drafting patterns such as Chinese painting with high requirements on clearness; crystalline patterns on the glaze are three dimensional and give off lofty rays of light with brilliant and rich color, harmony and good appearance.

The invention provides a method for fabricating blue-and-white peony porcelain, which comprises calcining from basic material of china clay, raw material of glaze and chromatic china clay, wherein the chromatic china clay includes red china clay, pink china clay, yellow china clay and green china clay. The method for fabricating peony porcelain comprises the following steps: preparing a clay blank; preparing color mud; making enamel frit; making porcelain body; biscuit firing; applying underglaze blue and glazing; dough molding and calcining. The blue-and-white peony porcelain fabricated by the method of the invention comprises overglaze blue and underglaze blue, and can combine porcelain flowers and porcelain during the calcination process.

The invention discloses a dragon spring celadon antibacterial agent, which comprises the following components according to weight percentage: 45 percent to 65 percent of dragon spring celadon glaze, 15 percent to 35 percent of nano silicon oxide and 15 percent to 30 percent of silver phosphate. The invention also discloses an application of the dragon spring celadon antibacterial agent in preparing the celadon antibacterial glaze, the dragon spring celadon antibacterial agent and celadon underglaze are mixed to prepare the antibacterial glaze dry agent. The antibacterial glaze dry agent is dissolved by adding water, is ball-milled into glaze slurry, is glazed by adopting a mode of dipping glaze or spraying glaze and then is fired into celadon antibacterial glaze; under the premise of keeping the style of the traditional celadon not to be changed, the glazed surface thereof is added with the antibacterial function, the sterilizing rate for escherichia coli and staphylococcus aureus reaches to more than 90 percent.

The invention provides a preparation process of underglaze red nixing pottery. The preparation process comprises the steps of blank preparing, blank forming, blank drying, blank decorating and blank burning, wherein, in the blank decorating, a layer of clear glaze is applied on a dry blank body after describing patterns by using an underglaze red pigment and/or writing characters; the underglaze red pigment is prepared from the following raw materials in parts by weight: 12 to 15 parts of copper oxide, 58 to 65 parts of hydrophite, 19 to 25 parts of glass powder and 6 to 9 parts of diabase; the clear glaze comprises the following raw materials in parts by weight: 79 to 81 parts of glaze stone, 21 to 23 parts of glaze ash and 5 to 8 parts of fluorite. According to the invention, the underglaze red pigment can be directly applied on the blank of the nixing pottery without need of ground glaze, the process is simplified, the finished products are bright-colored, and the glaze is bright.

The invention discloses an underglaze red ceramic. The ceramic body is composed of waste ceramic, natural clay, calcined talcum, feldspar, aluminum oxide micropowder, silicon nitride, black soil and wollastonite. The underglaze red ceramic is composed of cuprous oxide, quartz, limestone, Li-feldspar, ulexite, silicon carbide, silicon nitride, ferric oxide, tin dioxide, zirconium silicate, zinc borate, smectite, hydroxymethyl cellulose sodium and sodium humate. The compositions of the ceramic body and glaze are optimized to enhance the coloration effect, hardness, stability and other physicochemical properties of the ceramic. The product grade completely satisfies the industrial and domestic demands, and has the effect of waste utilization.

The invention discloses a production process of underglaze five-color ceramics with fine brushwork traditional Chinese painting carving, belonging to the production process field of art ceramics. The production process comprises the following steps: (1) design; (2) plaster master stamper manufacturing; (3) painting; (4) carving; (5) mould opening;(6) slip casting; (7) finishing and washing; (8) bisque firing; (9) polishing; (10) colouring: delineating, pigment solution coating and color spraying; (11) roasting; (12) applying transparent glaze; and (13) firing. According to the process provided by the invention, a fine brushwork traditional Chinese painting process, a carving process and a underglaze five-color coloring process are combined organically, so that the picture of the ceramics is relatively delicate, and has sense of space, sense of layering and third dimension, and the artistic value and added value of products of the ceramics are improved.