摘要 |
<p>The dyes are of formula: (in which R1, R2 are halogen or opt. substd. alkyl or alkoxy, and the coupling component is free of -SO3H gps.) and they are suitable for dyeing or printing of natural or synthetic polyamides, cellulose or regenerated cellulose fibres, paper or leather. General fastness is good, levelling props. are excellent and they can be used with other acid dyes, e.g. anthraquinone dyes.</p> |