1.Dyeing Method

Recipe

A . Dye x%（o.w.f.）
B . Dodium Sulfate(anhydrous) 5~10%（o.w.f.）
C . Sulfuric Acid（66°Be’） 2~4%（o.w.f.）
Adjust ph<3.5
Bath Ratio 1：10~30

Dyeing Procedure

2.Dyeing Method

Recipe

A.Dyes x%（o.w.f.）
B.Dodium Sulfate(anhydrous) 5~10%（o.w.f.）
C.Sulfuric Acid（66°Be'） 1~2%（o.w.f.）
Adjust ph<3.5
Bath Ratio 1：10~30

Dyeing Procedure

Note：A further addition of sulfuric acid （66°Be’）is made in case the dyes is not completely exhausted. Then dyeing for anther 20~30 minutes boiling.

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