Process for the continuous or semicontinuous dyeing of voluminou

Details Process for the continuous or semicontinuous dyeing of voluminou Process for the continuous or semicontinuous dyeing of voluminou

1982-06-16

1983-11-08

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Polymeric additive

8557, 8666, 8918, D06P 112, D06P 368

Patent

active

044140002

ABSTRACT:
Continuous dyeing of voluminous cellulose fabrics, according to a two-bath procedure and without intermediate drying, with azo dyes produced on the fiber by coupling of their formation components is effected by incorporation in a developing liquor with which the previously impregnated fabric is slop-padded, wet-in-wet, of a combination comprising homo- or copolymers of acrylic acid amide and a wetting agent into said developing liquor; the liquor uptake by the moist fiber material is increased and the penetration rate of this liquor during the coupling is incited in such a manner that textile articles which exhibit even, well penetrated dyeings are obtained.
Dyeing of for example cord, velvet, terry or pile fabrics with azo developing dyes has become feasible only in accordance with this invention. The process may be carried out also in semicontinuous operation.

REFERENCES:
patent: 3713767 (1973-01-01), Lowenfeld et al.
patent: 3957427 (1976-05-01), Chambers
patent: 4224027 (1980-09-01), Hertel et al.
patent: 4304567 (1981-12-01), Ballmann et al.
patent: 4323363 (1982-04-01), Brachten et al.

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