Explanation

The glaze color porcelain is painted on the green body with cobalt bearing natural minerals or industrial cobalt oxide as the colorant. After applying transparent glaze, it is fired at 1280-1350 ° C in a reducing atmosphere. The chemical composition of different cobalt ores varies greatly - especially the content and ratio of cobalt, manganese, iron and chromium are significantly different - making the blut-and-white porcelain of different periods have different colors. In addition, the fineness of pigments, firing temperature, and kiln white atmosphere also have a certain impact. As early as the Tang Dynasty, Gongxian Kiln in Henan Province began to burn a small amount of blut-and-white porcelain with imported cobalt materials. During the Song Dynasty, the Zhejiang region utilized local cobalt earth mines for small-scale burning. From the Yuan Dynasty to the Qing Dynasty, a large number of blut-and-white porcelain were fired in Jingdezhen. blut-and-white porcelain of the Yuan Dynasty was colored with imported cobalt materials of low manganese, low aluminum and high iron. Its characteristic is its dark blue color and easy to flow patterns. After the Ming Dynasty. The production of blut-and-white porcelain in Jingdezhen has further expanded, becoming the mainstream of porcelain production in China. Its characteristic is its rich and vibrant color, which is dizzy and scattered. Some have black speckle. Same period. Jingdezhen folk kilns also produce a large number of folk blue and white porcelain. In the Qing Dynasty, refining domestic cobalt ores were all used. Kangxi blut-and-white porcelain has distinct layers, bright pure blue, and dense body. The blut-and-white porcelain of the Yongzheng and Qianlong periods was not as bright as that of the Kangxi period. After Qianlong, the production technology of blut-and-white porcelain gradually declined. After the 1980s, Jingdezhen has done a lot of work in antique blut-and-white porcelain, reaching a high level.

Classification