What does "Yijun" mean?

Yixing kiln also has "glazed pottery", with glaze colors such as azure, sky blue, beans, tomato skin, grape purple and moonlight. The tire color is white and purple, the glaze thickness is opaque, and the piece is thin. Wealthy people started in the middle of the Ming Dynasty, and later Europe set up a kiln in Dingshan Town, imitating the flowerpots and stationery of the official, elder brother and Jun kilns in the Song Dynasty, so it was called "Yijun".