During the Kangxi Period of the Qing Dynasty a new glazing technique was invented in the Jingdezhen kiln for black glazes.

• 清代康熙乌金釉的创烧，突破了黑釉以铁为主要呈色剂的传统，它以铁、钴、锰为呈色元素，取得了光润透亮、色黑如漆的效果。