Process for preparing disazo dyes with bis-anilino methane coupling
component
    3.
    发明授权
    Process for preparing disazo dyes with bis-anilino methane coupling component 失效
    用双 - 苯胺基甲烷偶联组分制备双偶氮染料的方法

    公开(公告)号:US4760133A

    公开(公告)日:1988-07-26

    申请号:US457872

    申请日:1983-01-14

    CPC分类号: C09B31/043

    摘要: A process for preparing a disazo dye represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, a halogen atom, a nitro group, a trifluoromethyl group, a lower alkoxycarbonyl group or a lower alkylsulfonyl group, R.sup.3 represents a lower alkyl or allyl group which may optionally have a substituent or substituents, and R.sup.4 represents a lower alkyl or allyl group having a substituent or substituents, which comprises diazotizing an amine represented by the following formula: ##STR2## wherein R.sup.1 and R.sup.2 are the same as defined above, and coupling the diazotized product with a bis(N,N-di-substituted anilino)methane represented by the following formula: ##STR3## wherein R.sup.3 and R.sup.4 are the same as defined above.

    摘要翻译: 制备由下式表示的双偶氮染料的方法:其中R 1和R 2各自表示氢原子,卤素原子,硝基,三氟甲基,低级烷氧基羰基或低级烷基磺酰基,R 3表示 可以任选地具有取代基的低级烷基或烯丙基,R4表示具有取代基的低级烷基或烯丙基,其包括用下式表示的胺重氮化:其中R1和R2是 与上述定义相同,并将重氮化产物与由下式表示的双(N,N-二取代的苯胺基)甲烷偶联:其中R 3和R 4与上述定义相同。

    Heterocyclic monoazo dyes for polyester fibers
    4.
    发明授权
    Heterocyclic monoazo dyes for polyester fibers 失效
    用于聚酯纤维的杂环单偶氮染料

    公开(公告)号:US4542207A

    公开(公告)日:1985-09-17

    申请号:US482802

    申请日:1983-04-07

    摘要: Monoazo dyes for dyeing polyester fibers represented by the formula: ##STR1## wherein D represents a substituted or unsubstituted thiazolyl, benzothiazolyl, thiadiazolyl or pyridyl group, X represents a hydrogen atom, a chlorine atom, a methyl group, a methoxy group or an acylamino group, Y represents a hydrogen atom, a chlorine atom, a methyl group, an alkoxy group or an alkoxyalkyl group, R.sup.1 represents a hydrogen atom, a substituted or unsubstituted alkyl, alkenyl or aryl group, and R.sup.2 represents a phenoxymethyl group, a phenoxyethyl group, a benzyl group or a tetrahydrofurfuryl group.Fibers which can be dyed with the azo dyes of the present invention include polyester fibers such as polyethylene terephthalate, a polycondensate between terephthalic acid and 1,4-bis (hydroxymethyl) cyclohexane or the like and blended or mixed fibers of the above-described polyester fibers with natural fibers such as cotton, silk or wool. The present dyes can also be used in combination with other dyes of the same series. In some cases, blending two or more dyes represented by the general formula (I) provides good results as well as an improvement of the dyeing properties.

    摘要翻译: 其中D表示取代或未取代的噻唑基,苯并噻唑基,噻二唑基或吡啶基,X表示氢原子,氯原子,甲基,甲氧基或酰基氨基,由下式表示的用于染色聚酯纤维的单偶氮染料: 基团,Y表示氢原子,氯原子,甲基,烷氧基或烷氧基烷基,R1表示氢原子,取代或未取代的烷基,烯基或芳基,R2表示苯氧基甲基,苯氧基乙基 基,苄基或四氢糠基。 可以用本发明的偶氮染料染色的纤维包括聚酯纤维如聚对苯二甲酸乙二醇酯,对苯二甲酸和1,4-双(羟甲基)环己烷等之间的缩聚物,以及上述聚酯的混合纤维 纤维与天然纤维如棉花,丝绸或羊毛。 本发明的染料也可以与同一系列的其它染料组合使用。 在一些情况下,混合由通式(I)表示的两种或更多种染料提供了良好的结果以及染色性能的改善。