Disazo sulfophenylpyrazolonestilbene dyes and direct dyes to col

Details Disazo sulfophenylpyrazolonestilbene dyes and direct dyes to col Disazo sulfophenylpyrazolonestilbene dyes and direct dyes to col

1983-11-07

1984-12-25

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

8681, 8687, 8690, 8918, 8919, 534689, 534691, C09B 2900, C09B 3302

Patent

active

044901518

ABSTRACT:
New disazo sulphophenyl pyrazolone-sulpho stilbene compounds are useful as orange-hued dyes for cellulosic having excellent color stability over a wide pH range and when in aqueous solution are useful as liquid paper black dyes.

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patent: 2681926 (1954-06-01), Lane et al.
patent: 2714587 (1955-08-01), Neier et al.
patent: 3299040 (1967-01-01), Jeremias et al.
patent: 4250091 (1981-02-01), Papa et al.

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