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Dyeing and printing of cellulosic fibre materials with vat dyes with mono- or di-hydroxyacetone as reducing agent
Dyeing and printing of cellulosic fibre materials with vat dyes with mono- or di-hydroxyacetone as reducing agent
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机译:用还原染料用一或二羟基丙酮作为还原剂对纤维素纤维材料进行染色和印花
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摘要
Process for dyeing and printing cellulosic fiber materials with vat dyes in the presence of enediols as reducing agents and alkali, using in addition small amount of organic water-miscible solvents, for example low molecular weight alcohols, when reducing the vat dyes. The vatting of the vat dyes proceeds uniformly and completely within a relatively short time, and the resulting vat dyes are reproducible and notable for high levelness and fastness properties.
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