Benzoquinone dye, rope-dyeing dye compositions, cotton...

Details Benzoquinone dye, rope-dyeing dye compositions, cotton... Benzoquinone dye, rope-dyeing dye compositions, cotton...

C - Chemistry, Metallurgy

09

B

8/33, 8/45

C09B 7/00 (2006.01) C09B 57/00 (2006.01) C09B 67/22 (2006.01) D06P 1/22 (2006.01) D06P 1/38 (2006.01) D06P 3/60 (2006.01)

Patent

CA 2031419

A rope-dyeing dye composition is provided comprising at least one yellow benzoquinone dye represented by Formula (I): Image (I) wherein R1, R2, R3, R1', R2', and R3', commonly or independently represent a hydrogen atom, a halogen atom, alkyl, cycloalkyl, alkenyl, aryl, aralkyl, alkoxyl or alkoxyalkyl, either alone or in combination with a specified red .DELTA.2,3'-biindolin-3,2'-dione dye and/or a specified blue indigoid dye. Such dye composition enables the rope-dyeing of denim cotton warp yarns.

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