Bleaching and dyeing; fluid treatment and chemical modification – Reactive dye composition – process – or product – Alkylene sulfato – halotriazine – halodiazine,...
Reexamination Certificate
2006-04-18
2006-04-18
Einsmann, Margaret (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Reactive dye composition, process, or product
Alkylene sulfato, halotriazine, halodiazine,...
C008S547000, C008S641000, C008S918000, C534S604000, C534S605000, C534S612000, C534S614000, C534S617000
Reexamination Certificate
active
07029503
ABSTRACT:
The present invention provides a disazo compound which in a free acid form is represented by the formula (1) and which has high ability to dye cellulosic fibers and attains efficient dyeing with satisfactory reproducibility; and a method of dyeing cellulosic fibers with the compound. Also provided are: a reactive dye composition comprising a compound represented by the formula (1) and a specific red reactive dye and/or a specific blue reactive dye; and a method of dyeing cellulosic fibers with the composition.In the formula, R1and R3each represents hydrogen atom or methoxy group; R2and R4each represents hydrogen atom, methyl group, acetylamino group, ureido group, etc.; and m is 2 or 3.
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Copy of the International Search Report dated Aug. 27, 2002.
Odani Junji
Ogawa Eiichi
Shirasaki Yasuo
Einsmann Margaret
Nields & Lemack
Nippon Kayaku Kabushiki Kaisha
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