Glycol based pigment preparation for mass dyeing of...

Details Glycol based pigment preparation for mass dyeing of... Glycol based pigment preparation for mass dyeing of...

2011-03-15

2011-03-15

Douyon, Lorna M (Department: 1764)

Bleaching and dyeing; fluid treatment and chemical modification

Synthetic fiber dyeing

Polyacrylonitrile fiber

C008S510000, C008S637100

Reexamination Certificate

active

07905929

ABSTRACT:
The invention relates to a process for mass dyeing of polyacrylonitrile, wherein there is incorporated into a solution of acrylonitrile polymer or copolymer a pigment preparation which comprises10 to 60% by weight of a pigment,15 to 85% by weight of a glycol-based solvent,5 to 25% by weight of a surfactant, and0 to 10% by weight of customary additives,the percentages being based on the total weight of the pigment preparation.

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