Bright color, wash separately in cold water and add a small amount of salt, which can play as the role of color fixing.

色彩明亮的，冷水单独洗，加少量的盐，可以起到固定颜色的作用。

The best process conditions are confirmed by changing the amount of the liquid alkali, the amount of salt and the color fixing time.

通过改变液态碱的用量、食盐用量、固色时间确定了自制液态碱的最佳工艺。

Objective: To Study the effect of fixing-fluoride of bone salt emulsion extracted from sheep bone for raw material of Mixin black tea.

目的：研究羊骨提取的骨盐乳剂对米心红茶原料的固定理氟作用。