I would like to ask you about the characteristics of porcelain produced in Changsha Kiln in the Tang Dynasty.

Underglaze decoration was a unique and great innovation of Changsha kiln more than 1,000 years ago.

Underglaze brown color, spot pattern: It uses iron-containing pigments to make a brown spot glaze. The brown spot pattern is then dotted on the blank, and then covered with white glaze or celadon glaze. The temperature is about 1170-1200 degrees. Once fired in the kiln, the glaze surface will be smooth and smooth, and the brown spots will never fall off.

Underglaze green spots are usually a single green material, but there are also three colors composed of brown, green and black. The spots are painted on the tire into various patterns such as oblique, square, square, ring, rhombus and so on. Then it is covered with green and yellow glaze and fired to form a special style.

Underglaze green color. Use copper metal hair color to form green color, and freely write clouds or water ripple patterns on the tire, or freehand paintings of melons and fruits, and cover it with transparent glaze. The color is soft and the green color is elegant.

Underglaze brown-green painting. Use brown and green materials to paint flower and bird themes on the porcelain body. More common in porcelain pillows. The layout is rigorous and lively.

The above are roughly the characteristics of Changsha kiln porcelain.

Hope this helps.