Pad dyeing process for wool

Details Pad dyeing process for wool Pad dyeing process for wool

1986-01-28

1987-02-03

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Reactive dye composition, process, or product

8549, 8917, 8551, C09B 6200, D06P 314

Patent

active

046406913

ABSTRACT:
Vinylsulfonyl dyes, if padded from acidic liquors, produce on wool merely dyeings having a poor yield and only moderate fastness properties if the pad-beam method is used. It has been found according to the invention that padding from weakly alkaline liquor (pH 7-9) with sodium bicarbonate as fixing alkali and subsequent batching (6-24 hours) of the material produces good coloristic results especially on wools with a low-felting or non-felting finish.

REFERENCES:
patent: 2895785 (1959-07-01), Alsberg et al.
patent: 2950165 (1960-08-01), Hadfield et al.
patent: 4264321 (1981-04-01), von der Eltz
patent: 4304566 (1981-12-01), von der Eltz et al.
patent: 4560388 (1985-12-01), Rohrer
patent: 4568350 (1986-02-01), Rohrer

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