Kazuo purple sand products are high-temperature pottery made from purple sand ore as a raw material through various processes. The appearance of the ore has the Kazuo purple sandware Kazuo purple sandware color purple, purple brown, vermilion and many other colors. The texture is fine and hard, and the particle structure is tight. The firing temperature is high and the sintering temperature is very close to that of porcelain, so it is a high temperature pottery. Because the raw material contains uniform sandy particles, the appearance of the particles after burning is clear and gentle. Because the purple sand ore has a lot of colors, people make full use of the original color of the ore to prepare a variety of different colors of purple sand mud. It is also possible to formulate different kinds of mud materials according to different uses, which is convenient for the production process to meet the requirements of the mud material. The appearance of purple sand products is suitable for engraving, good breathability, natural color, no glaze, good plasticity.

Technical requirements for quality of Kazuo purple sand 1. Main raw materials 1. For the purple sand mine mined in the protected area, the appearance is purple, red, yellow, light purple, green or black. 2. → crushing → screening → practicing mud → stale) → forming → decoration → firing → polishing. Third, the key technical requirements 1. Raw material processing: After raw material mining, it will be weathered for ≥6 months, and after crushing, it will pass through 60 mesh sieve. The sieving raw material is mixed with water to a water content of 20% to 25%; the mud is trained under a negative pressure of ≤ -0.09Mpa. The trained green mud is aged for more than 3 months under closed conditions. 2. The cups are made by hand molding, plastic molding, mechanical molding, etc. according to different product types. 3. Decoration: use carving, engraving, stacking, sticking, pinching and other techniques. 4. Firing: (1) Drying temperature: from room temperature to 850 ° C, time control is 5 to 7 hours; (2) oxidation firing: temperature is 850 liters to the highest firing temperature (1110 ° C to 1150 ° C), time Controlled at 1.5 to 2.5 hours; (3) High temperature firing: maintaining the highest firing temperature (1110 ° C to 1150 ° C) ≥ 30 minutes; (4) Cooling: from the highest firing temperature (1110 ° C to 1150 ° C) to low At 60 degrees, the cooling time is not less than 4 hours. Fourth, the quality characteristics 1. Sensory features: The product is red, purple, yellow, light purple, green and other colors, the appearance is delicate and sandy. 2. (2) The open porosity is 4% to 7%, and the closed porosity is 1% to 2%, which has a typical double porosity. (3) Water absorption rate: 2.5% to 6.0%. (4) Thermal shock resistance: heat exchange at 180 ° C to 20 ° C does not crack once. 3. Safety and other quality technical requirements: Product safety must comply with relevant national regulations.

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Producers within the production area of ​​Kazuo Zisha may apply to the Quality and Technical Supervision Bureau of the Karamay Left-wing Mongolian Autonomous County of Liaoning Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Liaoning Quality and Technical Supervision Bureau and reported to the National Quality Inspection. Announcement after approval by the General Administration. The statutory testing agency of Kazuo Zisha is designated by the Liaoning Provincial Bureau of Quality and Technical Supervision.