FIELD: chemistry.
SUBSTANCE: method for dye preparation by vegetable raw material infusion is characterized by vegetable raw material infusion in 90% ethyl alcohol, and 1.5-2 g of mordant per 50 ml of alcoholic solution is added prior to dyeing. Hypericum flowers (Hypericum perforatum) are used as the raw material, and zinc vitriol is used as the mordant.
EFFECT: resistant reusable cytoplasmic dye is obtained.
4 dwg
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