Protection of reduction-sensitive dyes

Details Protection of reduction-sensitive dyes Protection of reduction-sensitive dyes

2005-08-09

2005-08-09

Einsmann, Margaret (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Oxygen-containing hetero ring

C008S594000, C008S598000, C008S606000

Reexamination Certificate

active

06926746

ABSTRACT:
The invention relates to a process for protecting reduction-sensitive dyes in the course of dyeing or printing fiber materials with dyes using a compound of the formula (I) or a mixture thereofwhere the substituents are each as defined in the claims;novel compounds of the formula (I) and printing and dyeing media containing compounds of the formula (I).

REFERENCES:
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English abstract for DE 3102315, Jan. 14, 1982.
XP-002199899, “Beilsteins Handbuch Der Organischen Cheimie”, Vierte Auglage, 2. Erganzungs-werk, Neunter Band, 1949, Freidrich Richter, Springer Verlag, p. 263.

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