Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Mixed dyes – noncomplexed
Patent
1998-12-17
2000-02-01
Einsmann, Margaret
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Mixed dyes, noncomplexed
8642, 8652, C09B 4990
Patent
active
060198001
ABSTRACT:
A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.
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Colour Index, vol. 4, p. 4137 put by The Society of Dyers and Colourists, Third Edition 1971.
Color Index, Third Edition, vol. 2, The Society of Dyers and Colourists, American Association of Textile Chemists and Colorists, Yorkshire England & Research Triangle Park, NC, 1971 p. 2019.
Carlough Mark S.
Hipp J. Michael
Sherrill William T.
Stahala Peter
Clariant Finance (BVI) Limited
Einsmann Margaret
Hanf Scott E.
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