Reactive dyes form a covalent bond after they contact a fabric molecule for a firm fabric bonding. Reactive dyes are very commonly used in the textile industry on different materials such as wool, silk, and cotton. Different popular applications of reactive dyes include exhaust dyeing, discharge printing, and inkjet printing.Reactive Dyes are the most versatile and popular class of Organic Dyes for importing colour on cellulosic fibres. As the name suggests, these dyes chemically react with cellulose to form a covalent bond between dye molecule and cellulose. The salient features of Reactive Dyes are
Brilliant shades
Ease of application
Overall good fastness
Properties
Economy
Reactive Dye Factors
pH
Temperature
Electrolyte concentration
Time for dyeing
Liquid ratio
Reactive Dyes Properties
Reactive dyes come in all shades
Powder, print-paste, and liquid are the different forms
Good Water solubility
Resistant to degradation caused by Ultra Violet rays
Good light and wash fastness
Reactive Dye Categories
Reactive dyes that react using Nucleophilic Substitution reaction.
Reactive dyes that react using Nucleophilic addition reaction.
Reactive Dye Factors
pH
Temperature
Electrolyte concentration
Time for dyeing
Liquid ratio
Reactive Dyes Properties
Reactive dyes come in all shades
Powder, print-paste, and liquid are the different forms
Good Water solubility
Resistant to degradation caused by Ultra Violet rays
Good light and wash fastness
Reactive Dye Categories
Reactive dyes that react using Nucleophilic Substitution reaction.
Reactive dyes that react using Nucleophilic addition reaction.
Classification of Reactive Dyes
Based on reactive group
Halogen
Activated Vinyl Compound
Based on dyeing temperature
Cold Brand Reactive Dyes
Medium Brand Reactive Dyes
Hot Brand Reactive Dyes
Based on reactivity
Lower Reactive Dyes
Medium Reactive Dyes
Higher Reactive Dyes
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