JPS472098A - |
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| 申请号 | JP4640871 | 申请日 | 1971-06-28 | 公开(公告)号 | JPS472098A | 公开(公告)日 | 1972-02-01 |
| 申请人 | 发明人 | ||||||
| 摘要 | 1324615 Dyeing processes FARBWERKE HOECHST AG 30 June 1971 [30 June 1970] 30693/71 Heading D1B Hydrophobic fibres, e.g. cellulose 2¢ and tri-acetates, polyacrylonitrile, polyamide, polyurethane and polyesters are dyed or printed at temperatures above 50‹C in the presence of a protein donor with an aqueous solution of a dye of formula F-X-CO-N-SO 3 M in M in which F is the radical of a water-insoluble dyestuff, M is an alkali metal ion or atom or ammonium ion, the bond between M and the nitrogen atom or sulph oxide group being ionic or covalent, X is -O- or -S- or -NR- in which R is H an alkyl or aryl group, an acyl or a sulphonyl group, preferably alkyl sulphonyl or arylsulphonyl group. The dyeing may be effected by exhaustion processes or by podding or printing followed by steaming or thermosolisation, carriers may also be used. Proton donors include ammonium sulphate, magnesium chloride, sodium N-benzyl-sulphanilate, tartaric acid dialkyl esters and phosphoric acid trialkyl ester. | ||||||
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