| 摘要 |
<p>Monazo dyes for textiles Dyes are of formula:- (where A may be substd. by halogen(s) and/or lower alkyl; R is H, lower alkyl, or aryl; R1 and R2 are H, or one is Cl; SO3H may be in 4,5,6, or 7 posn.) N and OH-contng. fibres e.g. wool, silk, superpolyamides etc. are dyed or printed by using the dyes and then heating at a high temp.</p> |
