申请人:Eastman Kodak Company
公开号:US04419289A1
公开(公告)日:1983-12-06
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的偶氮染料,其中包含一种可以被取代的异噻唑偶氮基团和一种同样可以被取代的杂环偶联剂。该染料在疏水性纤维上,例如聚酯、聚酰胺和纤维素酯上产生黄色调,并具有优异的牢度性能,包括耐光性、耐洗性和耐升华性,并且以异常低的能量水平染色。该染料的一般式为:##STR1## 其中各种取代基,R.sup.1和R.sup.2分别选自氢和各种基团,例如低烷基,--CN,卤素等,R.sup.3和R.sup.4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。