FIELD: textile and light industries as synthetic dye for wool and polyamide fiber. SUBSTANCE: present invention describes azo dyes, more particularly heterocyclic N- oxide azo compounds which have wide color range and are resistant to physical and chemical effects, chemical structure of azo dye promotes proton formation and hydration of molecule of compound and high adhesion of dye to amphoteric fiber. 1-(4'-pyridyl-N-oxid) azo-4- naphtol is synthetic dye for wool and polyamide fiber. EFFECT: improved properties. 1 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| DISODIUM SALTS OF 4-SULFOXYETHYLSULFONYL-2-X-2'-Y-4'-AMINO-N- METHYLSULFO-N-2''-(4''-CHLORO-6''-AMINO-DI-(BETA-HYDROXYETHYL)- 1'',3'',5''-TRIAZINYL)-AZOBENZENE FOR STAINING AND PRINTING MATERIAL OF NATURAL AND/OR SYNTHETICAL FIBERS | 1993 |
|
RU2064949C1 |
| WOOL DYEING METHOD | 0 |
|
SU1770497A1 |
| 0 |
|
SU556734A3 | |
| 0 |
|
SU448654A3 | |
| 4-SULPHOXYETHYLSULPHONYL-2-X-4'-AMINO-N-METHYL-SULPHO-2'-Y-AZOBENZENE DISODIUM SALTS FOR DYEING VARIOUS MATERIALS AND NATURAL LEATHER, AND FOR PRINTING ON COTTON AND SYNTHETIC CLOTHS | 1993 |
|
RU2100392C1 |
| METHOD OF DYEING POLYAMIDE MATERIALS WITH METALLOCOMPLEX AZO-OR AZOMETHYNE | 0 |
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