GATE (TF) Textile 2007 Question Paper Solution | GATE/2007/TF/61

Question 61 (Textile Engineering & Fibre Science)

Sodium hydrosulphite is not recommended for discharge printing because

(A)Discharge printing requires high reduction potential
(B)It reacts with the print paste
(C)It needs temperature in excess of 150oC to be effective
(D)For discharge printing one needs more hydrolytically stable agent than this
[Show Answer]

Option D

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