申请人:Eastman Kodak Company
公开号:US04354970A1
公开(公告)日:1982-10-19
Disclosed are novel azo dyes containing an isothiazole azo moiety which may be substituted, and a heterocyclic coupler which also may be substituted. The dyes produce yellow shades on, for example, hydrophobic textile fiber including polyesters, polyamides, and cellulose esters and have excellent fastness properties including lightfastness, washfastness and resistance to sublimation, and dye at unusually low energy levels. The dyes have the general formulae: ##STR1## wherein the various substituents, R.sup.1 and R.sup.2 are each selected from hydrogen and a wide variety of groups such as lower alkyl, --CN, halogen, and the like, R.sup.3 and R.sup.4 are each selected from hydrogen, lower alkyl, benzyl and phenyl, and Z represents the atoms necessary to complete a five or six membered ring.
本发明涉及一种新型偶氮染料,包含一种可以被取代的异噻唑偶氮结构和一种也可以被取代的杂环偶联剂。该染料在疏水性纺织纤维(包括聚酯、聚酰胺和纤维素酯)上产生黄色阴影,并具有优异的耐光、耐洗和耐升华性能,并且在异常低的能量水平下染色。该染料的普遍公式如下:其中,各种取代基R1和R2分别选自氢和各种基团,例如低烷基,-CN,卤素等,R3和R4分别选自氢,低烷基,苄基和苯基,Z代表完成五元或六元环所需的原子。