Question 66 (Textile Engineering & Fibre Science)
Light fastners of some of the direct dyes can be improved by an after treatment with
(A) | formaldehyde |
(B) | cationic surfactant |
(C) | copper sulphate |
(D) | dye fixing agent |
Light fastners of some of the direct dyes can be improved by an after treatment with
(A) | formaldehyde |
(B) | cationic surfactant |
(C) | copper sulphate |
(D) | dye fixing agent |