Dyestuff composition: disperse or vat dye and lignin sulphonate

Details Dyestuff composition: disperse or vat dye and lignin sulphonate Dyestuff composition: disperse or vat dye and lignin sulphonate

1984-04-16

1985-11-05

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dry dye composition other than mere mixture of two or more...

8557, 8588, 8589, 8650, D06P 6702

Patent

active

045511519

ABSTRACT:
Improved dyestuff compositions are disclosed herein comprising, as dispersants, sulfonated lignins prepared by selectively isolating lignins having molecular weights greater than 5,000 and subsequently reacting the lignin with sodium sulfite and an aldehyde.

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Brauns, et al., The Chemistry of Lignin, Supplement vol. (1960), pp. 553-555.

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