Blue underglaze red

Porcelain underglazed a color. Commonly known as "blue plus purple." In between blue and white with copper red plus painted decoration. Xuan color in the United States and known for. Began in the Yuan Dynasty. As a result of firing difficult blue underglaze red, and be regarded as Ancient treasures.

Blue means a blue-white porcelain flowers, and its production method is in the shape of the billet with a blue and white porcelain material depicting a variety of pattern designs, and then Shi transparent glaze, in a high temperature of around 1300C first firing of underglazed Cai . Because of its blue and white contrast, bright and elegant characteristics of generosity, so to date from the late Yuan Dynasty 600 years, has been the mainstream of Chinese porcelain production. On the Blue and White Porcelain's origins, its underglazed painting process and all material terms of cobalt blue and white, has a long history.

Underglaze red porcelain refers to the use of copper oxide (copper flowers) as a coloring agent prepared Cai expected, in the body (or to impose the blanks Green white clay) painted patterns, and then cover a layer of white glaze Green, box and then loaded into the kiln, the 1250C ~ 1280C strong flame to restore an atmosphere, so that low-cost high-priced copper restore copper, Yan Jiao and calmly showed red porcelain patterns.

Underglaze red and blue and white porcelain is the same as the Yuan Dynasty Jingdezhen potters create outstanding. not only the birth of the same era, but also in the production process, such as decorative themes and style are very similar, is a favorite feature twin sister. However, due to strict underglaze red calcined conditions, firing a narrow range, compared to blue and white to multi-effemination Therefore, its varieties, the yield and the impact on as a blue and white porcelain. But it has not prepared the kind of blue-and-white like ruby Wealthy flu, coupled with difficulty in firing a result of the "rare" reasons, always seems particularly valuable.