Textile Engineering > GATE 2016 > Dyeing
Consider the following assertion [a] and reason [r] and choose the correct alternative from amongst A, B, C and D.
[a] In dyeing of polyester with disperse dyes, it is easier to obtain dark shades with solvent dyeing method than with aqueous dyeing method.
[r] The partition coefficient (D[f]/D[s]) of disperse dyes is much lower in aqueous medium than in a solvent.
[a] In dyeing of polyester with disperse dyes, it is easier to obtain dark shades with solvent dyeing method than with aqueous dyeing method.
[r] The partition coefficient (D[f]/D[s]) of disperse dyes is much lower in aqueous medium than in a solvent.
Explanation
Correct : c
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