Small knowledge of ceramic tableware raw materials

Small knowledge of raw materials for ceramic tableware Kaolin-one of the main raw materials for making porcelain. The color is white and slightly gray or yellow. It was originally discovered in Gaoling Village, Dongxiang, Fuliang (now Jingdezhen), Jiangxi, hence the name. The word 'Gao Ling' was first seen in the 'Fuliang County Chronicles' in the 21st year of Kangxi in the Qing Dynasty. It was transliterated into Gaolin on the national standard and became an international term.　　　　Macang soil-the raw material for making porcelain in Jingdezhen during the Yuan and Ming Dynasties. It is a kind of kaolin produced in Macang Mountain near Jingdezhen, hence the name.　　　　 porcelain stone-one of the main raw materials for making porcelain white porcelin dinnerware. It is a rock-like mineral with quartz and sericite as the main body. The white color is slightly yellow, green, gray or light red, and it has been used to make porcelain in our country for a long time.　　　　　　ダ　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 its the term and the term as the term, the term, the term, the term, the term, the term used in the term of the term used in the foreign literature of the term, the term is commonly used in the term of the term used in the foreign chinaware ceramic.　　　　 glaze slurry-that is, glaze, applied to the surface of the porcelain blank. According to literature records, the glaze slurry used in Jingdezhen porcelain is made up of glaze fruit and glaze dust. The ceramic raw materials are mainly composed of silicon oxide, aluminum oxide, calcium oxide, potassium oxide, sodium oxide, etc. The glaze ash is made by smelting limestone and pongal grass. Cobalt earth ore-the coloring raw materials of blue and white porcelain. There are many types. In ancient times, it is roughly divided into two types: one with high manganese content and low iron content, which is domestic cobalt earth ore; one with low manganese content and high iron content , It is the cobalt earth ore produced in West Asia.　　　　 Su Ni Ma Qing-also known as 'Su Ma Li Qing' and 'Su Ni Bo QingIts characteristic is that the hair color is dignified and bright, and there are black rust-like spots. After laboratory tests, the material contains low manganese and high iron content, which is obviously different from domestic green materials.　　　　 Pingqing-also known as 'PitangqingProduced in today's Leping, Jiangxi, the color is elegant.　　　　 Huiqing-is a kind of imported blue and white color material. Most of the blue and white porcelain in Jingdezhen during the Ming Dynasty Zhengde, Jiajing, Longqing and Wanli period used this kind of blue material. The characteristic of this ceramic material is that the hair color is blue and purple, which is different from the hues of Su Ma Li Qing and Ping Qing.　　　　 Shiziqing-also known as 'ShiqingProduced in today's Shanggao, Jiangxi, the hair color is thick and gray.　　　　 pearl material-a blue and white color material produced in Yunnan, calcined from cobalt earth ore. The main green material used in Jingdezhen blue and white porcelain in the Qing Dynasty has a bright green color.

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