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    • 2. 发明授权
    • Process for dyeing differential-dyeing polyamide fibres
    • 染色差染染色聚酰胺纤维的工艺
    • US4514187A
    • 1985-04-30
    • US513596
    • 1983-07-14
    • Hans U. SchutzHelmut RaisinThys Bouwknegt
    • Hans U. SchutzHelmut RaisinThys Bouwknegt
    • C09B1/34D06P3/04D06P3/06D06P3/82
    • C09B1/34D06P3/06D06P3/8209Y10S534/01Y10S8/924
    • 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 ##STR1## in which A.sub.1 is hydrogen or C.sub.1-4 alkyl and R is a C.sub.2-5 -alkanoyl, C.sub.3-6 -alkenoyl, (C.sub.1-4 -alkoxy)carbonyl, phenoxycarbonyl, C.sub.1-4 -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 A.sub.1 is as defined above and R is a C.sub.1-4 -alkylsulfonyl or phenylsulfonyl radical which can be substituted in the phenyl moiety by C.sub.1-4 -alkyl.Even at low dyeing temperatures, the process of the invention gives ombre effects rich in contrast and, on admixture of other suitable acid dyes, multicolor effects on polyamide fibres which are suitable for differential dyeing.
    • 本发明涉及这样的聚酰胺纤维和含有聚酰胺纤维的材料的不同染色方法,所述聚酰胺纤维由染色性不同的组分或聚酰胺纤维与染料或染料混合物组成的组分制成,其中包括用于将这些材料染色 含有式(1)的染料的水溶液,其中A1是氢或C1-4烷基,R是C2-5-烷酰基,C3-6-烯酰基,(C1-4-烷氧基)羰基,苯氧基羰基 可以在烷基,链烯基,烷氧基,苯氧基或苯基部分取代的C 1-4 - 烷基磺酰基或苯基磺酰基,或式(1)的染料与单磺酸的蒽醌染料的混合物,以及这些染料 的式(1)的化合物,其中A 1如上所定义,R是可以在苯基部分被C 1-4 - 烷基取代的C 1-4 - 烷基磺酰基或苯基磺酰基。 即使在低染色温度下,本发明的方法也产生了丰富的造影效果,并且与其它合适的酸性染料混合,对于适用于不同染色的聚酰胺纤维具有多色效果。