Process for preparing dyes on modified fiber materials using anionic textile dyes by ink spray printing technique

摘要

A process for producing dyes on modified fiber materials using anionic textile dyes by ink spray printing techniques.;The present invention relates to one or more primary, secondary or tertiary amino groups or quaternary ammonium by ink spray printing spray techniques with alkali-free and preferably electrolyte-low or electrolyte-completely free aqueous solutions of anionic dyes. Fibrous materials made from or containing sheet-like fibrous materials, in particular cellulose fibers, comprising pretreatment with compounds containing groups (amino / ammonium groups may be part of a heterocycle) and applied to modified fibrous materials To dye anionic dyes, in particular dyes having fiber-reactive groups.;Generally no post-treatment by washing is necessary. Expensive wastewater treatment procedures resulting from excess staining obtained by other methods are excluded. When using a fiber-reactive dye, no fixing process by alkali is required, and the fixing process is generally carried out by a short heat treatment.