Natural0017 Grey

Raw materials：Gallnut

   Gallnut, is a kind of cystoid galls formed by the female horned gall of Homoptera Aphids parasitizing on the young leaves of rhus vernicifera. Its bark contains abundant tannic acid which can be used for dyeing. When tannic acid combines with iron ion, the fiber can be dyed into blue-black color.

Plant Area & Production Base: 

    Shanxi

Dye Production Process: 

    Harvest→Screening→Raw Material→Extraction→Concentration→Purification→Drying→Grinding →Packing