Classification of disperse dye for polyester
The SDC classification of disperse dyes is based on migration ability during exhaust dyeing, colou…
The SDC classification of disperse dyes is based on migration ability during exhaust dyeing, colou…
What is Disperse Dye? Disperse dyes are non-ionic colorants with low water solubility that, in t…
All reactive dyes are prone to hydrolysis in the presence of moisture, especially the highly reac…
Except in special instances, batchwise preparation before reactive dyeing is carried out in the dy…
In spite of the essential simplicity of reactive dyeing methods, there are few instances where dye…
A valuable classification of reactive dye types has been formulated recently [1]. Three groups re…
All conventional reactive dyes for cellulose, irrespective of whether they react by nucleophilic …
Early in 1988 Ciba-Geigy launched the Cibacron C range of mixed bifunctional dyes. They contain a…
Reaction of a dichlorotriazine dye with an arylamine containing a 2- sulphatoethylsulphone groupi…
In the early years of the commercial exploitation of reactive dyes, it was soon noted that anomalo…
As in the case of chlorotriazines and vinylsulphones, dyes containing phosphonic acid groups had …
The Remazol (HOE) vinylsulphone dyes, containing the characteristic 2- sulphatoethylsulphonyl pre…
A fluorine atom is used as the leaving group in the Cibacron F (CGY) range of 2- amino-4-fluoro-s-…
Reaction of a dichloro-s-triazine dye with an amine at about 25–40°C produces a much less reactiv…
In a typical dye of this type, such as CI Reactive Red 1, the partial polarisation of the ring C=N…
Many reagents can be used to acylate cellulose when it is partially ionised under alkaline conditi…
It was not until the early 1950s, following the marketing in 1952 by Hoechst of two Remalan (HOE)…
Discovery of the first direct dye, depended on various techniques for depositing insoluble colora…
The four characteristic features of a typical reactive dye molecule are: The chromophoric grou…
Name of the Experiment: Study on Color fastness to Perspiration (ISO 105 E04; 1994). Introductio…