Reactive monoazo dyes for wool, silk, cellulose and polyamides - are water-sol and are prepd from 1-phenyl 3-methyl 5-pyrazolone coupling components
Реферат: Reactive monoazo dyes of formula (I) (in which R1 is H, or CH3, one of R2 or R3 is H, and the other is -SO3H) are useful for dyeing, or printing of animal fibres, e.g. wool and silk, synthetic polyamides, cellulse e.g. cotton and linen, regenerated cellulose, paper and leather. They give brilliant, golden-yellow shades fast to washing, perspiration and light, esp. on cellulose fibres.
REACTIVE MONOAZOIC COMPOUNDS, THEIR PREPARATION AND THEIR USE AS DYES.
Номер патента: IT9048468D0. Автор: Paul Doswald. Владелец: SANDOZ AG. Дата публикации: 1990-11-13.