Direct Blue 297

Colour Fastness Test

Used for cellulose fiber dyeing and printing of, also suitable for polyester/cotton, polyester/stick blended a bath dyeing of step.

Use condition:

Direct Blue 297 Used in the one-bath one-step dyeing process of polyester-cotton, polyester-bonded or cotton-nitrile blended fabrics. The dyeing of cotton and viscose fibers can be dyed in the same bath as the disperse dyes or as a direct dye. It has high directness to cellulose fiber and high dyeing rate, that is, it also has a high dye uptake rate when a small amount of inorganic salt is used. The dye solution has good stability and does not agglomerate in the dye bath at 130 ° C. The pH value of the dye bath It has a wide adaptability range and has a good dye uptake rate for cellulose fibers under acidic conditions.