New Cationic Agents for Improving the Dyeability of Cellulose Fibres. Part 2 – Pretreating Cotton with Polyepichlorohydrin-amine Polymers for Improving Dyeability With Reactive Dyes

Pretreatment of cotton with polyepichlorohydrin-dimethylamine produces a modified cotton that can be dyed under neutral conditions with selected low-reactivity dyes using a small amount of salt or with selected high-reactivity dyes without salt. The dyeings of treated cotton exhibit improved colour yield and high wash fastness. The properties and the quality of the reactive dyeings are discussed