Why does the surface of the cotton become rough after the dye is dyed directly?

Direct dyeing requires the use of salt to promote dyeing, and after the cotton cloth absorbs a lot of salt, the hand feels rough! In addition, the direct dye has poor color fastness and requires the use of a fixing agent, and the fixing agent forms a resin on the surface of the fabric, which also affects the roughening of the hand.
The way to overcome is to wash a few more hot water after dyeing, and add softener if necessary.

Recommended Products:

Direct Black 38

Direct Red 31

Direct Red 23

Direct Yellow 12

Direct Yellow 11

Direct Orange 26

Direct Blue 86

Direct Blue 15

Direct Black 22

Direct Black 19