Dyestuff mixtures and process for dyeing polyester fiber therewith
    5.
    发明授权
    Dyestuff mixtures and process for dyeing polyester fiber therewith 失效
    用于染色聚酯纤维的染料混合物和方法

    公开(公告)号:US3955919A

    公开(公告)日:1976-05-11

    申请号:US349773

    申请日:1973-04-10

    摘要: Mixtures of water-insoluble monoazo dyestuffs are disclosed together with the dyeing, padding or printing of polyester material therewith.The water-insoluble monoazo dyestuffs of the following general formula (A) ##SPC1##in which Y represents hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy or cyano; R.sub.1 represents methoxy, ethoxy or phenoxy; R.sub.2 represents methyl or ethyl; R.sub.3 represents hydrogen, methyl, ethyl, cyanoethyl or allyl; and R.sub.4 represents methyl, ethyl, propyl, butyl, allyl or phenyl, are suitable for the production of inexpensive navy shades of good fastness to light, washing, perspiration, sublimation and heat setting; however, difficulties sometimes arise in the case of these dyestuffs.The improvement disclosed comprises overcoming said difficulties and providing new navy shades by using a mixture of at least two dyestuffs, in one of which the Y constituent above is hydrogen and in the other of which the Y constituent is replaced by constituent X which represents chlorine, bromine, methyl, ethyl, methoxy, ethoxy or cyano.

    摘要翻译: 公开了水不溶性单偶氮染料的混合物以及聚酯材料的染色,填充或印刷。