New azo Dyes Based on 1,3-dihydroxynitrobenzene and 2,4,6-trihydroxynitrobenzene for Polycaproamide Fibers
Syntheses of 16 previously undescribed mono- and bis-azo compounds in 70-95% yields via azo coupling of 1,3-dihydroxynitrobenzene and 2,4,6-trihydroxynitrobenzene with structurally varied aryldiazonium salts are reported. The synthesized mono- and bis-azo compounds were tested as acid and disperse d...
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Published in | Fibre chemistry Vol. 53; no. 6; pp. 446 - 450 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.03.2022
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Syntheses of 16 previously undescribed mono- and bis-azo compounds in 70-95% yields via azo coupling of 1,3-dihydroxynitrobenzene and 2,4,6-trihydroxynitrobenzene with structurally varied aryldiazonium salts are reported. The synthesized mono- and bis-azo compounds were tested as acid and disperse dyes for polycaproamide fiber. Results of stability tests of the color fastness to washing (GOST 9733.4-–83) and perspiration (GOST 9733.6–83) indicated that the dyes had good operational properties. Conclusions were made about the dependence of the dye stability on the structures of the tested azo compounds. |
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ISSN: | 0015-0541 1573-8493 |
DOI: | 10.1007/s10692-022-10327-0 |