Dyed viscose fiber 1.5D*38 ,2.0D*51 used in the non-textile industry entering the dyed textile industry. 1. The color can be maintained for a long time, it won’t fade in the regular environment and it washes well and bear friction and sunshine well, too. Past the test of the SGS. The color fastness reaches grade 4 to 5, some indices exceed the grade 5.2. Use the environmental pigments and ...