Title:
DYEING OF DIFFERENT DYEING FIBER
Document Type and Number:
Japanese Patent JPS5930970
Kind Code:
A
Abstract:
The present invention relates to a process for the differential dyeing of such polyamide fibres and materials containing polyamide fibres as are made of components which differ in dyeability, or mixtures of polyamide fibres, with dyes or dye mixtures, which comprises using for dyeing these materials an aqueous liquor which contains a dye of the formula (1) in which A1 is hydrogen or C1-4alkyl and R is a C2-5-alkanoyl, C3-6-alkenoyl, (C1-4-alkoxy)carbonyl, phenoxycarbonyl, C1-4-alkylsulfonyl or phenylsulfonyl radical which can be substituted in the alkyl, alkenyl, alkoxy, phenoxy or phenyl moiety, or a mixture of a dye of the formula (1) with a monosulfo-containing anthraquinone dye, and to those dyes of the formula (1) in which A1 is as defined above and R is a C1-4-alkylsulfonyl or phenylsulfonyl radical which can be substituted in the phenyl moiety by C1-4-alkyl. Even at low dyeing temperatures, the process of the invention gives ombré effects rich in contrast and, on admixture of other suitable acid dyes, multicolor effects on polyamide fibres which are suitable for differential dyeing.
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Inventors:
HANSU URURITSUHI SHIYUTSUTSU
HERUMUUTO RAIJIN
TAISU BOOUKUNEHITO
HERUMUUTO RAIJIN
TAISU BOOUKUNEHITO
Application Number:
JP13203483A
Publication Date:
February 18, 1984
Filing Date:
July 21, 1983
Export Citation:
Assignee:
CIBA GEIGY AG
International Classes:
C09B1/34; D06P3/04; D06P3/06; D06P3/82; (IPC1-7): C09B1/34; D06P3/24
Attorney, Agent or Firm:
Masao Okabe