Explanation

Copper red glaze made in Jun kiln of Song Dynasty in China. The color of copper red is extremely sensitive to changes in firing temperature and atmosphere, and is highly technical. Copper red had already appeared in China as early as the Tang Dynasty, but its success was highly accidental. During the Song Dynasty, Jun Kiln in Yuxian County, Henan Province truly mastered the firing technology of copper red and created a series of precious varieties such as rose purple, begonia red, mule liver, horse lung, and Hongxia. The glaze of Jun kiln series all present milky blue with different shades. The Jun purple red glaze is also densely covered with numerous milky blue spots and flow patterns. This opalescent blue is related to the liquid-liquid phase separation in the glaze layer. The opalescent phenomenon occurs as a result of light scattering by a large number of liquid phase droplets in Jun glaze. The glaze layer of Jun red glaze is very thick and obviously flowing, with fine and dense patterns and earthworm walking mud patterns. The body of Jun red glaze is thicker and its porosity is higher. Jun red glaze wares were abundant in the Song Dynasty. During the Jin and Yuan Dynasties, Jun red glaze wares were burned in many kilns in Henan, and some kilns in Hebei and Shanxi were imitated. During the reign of Emperor Yongzheng and Emperor Qianlong in the Qing Dynasty, the imitation burning of Jun red glaze in Jingdezhen was successful. Jun red (also known as Jun red) produced in modern Jingdezhen is a kind of monochrome red glaze, and PbO as flux is completely different from Jun red glaze in the Song and Yuan dynasties.

Classification