Rhodamine B is mainly used for the coloring of paper and cosmetics, but also for making lakes and dyeing silk. Used in the paper industry to dye wax paper, typing paper, glossy paper, etc.; react with phosphotungstomolybdic acid to generate lake.
Rhodamine B is used for dyeing silk, acrylic and wool, and its light fastness can reach 2-3 grades. It is used for dyeing cotton fibers with tannins and has poor light fastness. It is also used for coloring leather, paper, wheat straw and preparing lake pigments.
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