GATE (TF) Textile 1997 Question Paper Solution | GATE/1997/TF/66

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
Answer / Solution
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