申请人:Eastman Kodak Company
公开号:US04255326A1
公开(公告)日:1981-03-10
Disclosed are azo dyes prepared by diazotizing heterocyclic amines such as 2-aminobenzothiazole, 3-amino-2,1-benzisothiazole, 5-amino-1,2,4-thiadiazole, 5-aminoisothiazole, 5-aminopyrazole, 2-aminothiophene and 2-amino-1,3,4-thiadiazole, followed by coupling with certain aniline, tetrahydroquinoline, or benzomorpholine compounds containing sulfate groups. These amines may be substituted with a large variety of groups including lower alkyl, lower alkoxy, cyano, carbamoyl, sulfamoyl, and halogen. These dyes have excellent dyeing properties on polyamide fibers and also impart color to cellulose acetate fibers and wool.
本发明涉及一种偶氮染料,其通过对杂环胺进行重氮化制备,其中所述杂环胺包括2-氨基苯并噻唑、3-氨基-2,1-苯并噻唑、5-氨基-1,2,4-噻二唑、5-氨基噻唑、5-氨基吡唑、2-氨基噻吩和2-氨基-1,3,4-噻二唑,然后与含有硫酸酯基的某些苯胺、四氢喹啉或苯吗啉化合物偶联。这些胺可以被各种基团取代,包括较低的烷基、较低的烷氧基、氰基、氨基甲酰基、磺酰胺基和卤素。这些染料在聚酰胺纤维上具有优异的染色性能,并且还能为醋酸纤维和羊毛赋予颜色。