The Chemistry Of Synthetic Dyes. Reactive Dyes May 2026
Typical of dyes (like Remazol). In an alkaline bath, the dye undergoes an elimination reaction to form a vinyl sulfone group, which then adds across the fiber's functional groups. Result: A highly durable covalent linkage. ⚡ Key Properties
Common in dyes. The chlorine atom on the dye molecule is displaced by the hydroxyl ( OHcap O cap H ) group of the cellulose or the amino ( NH2cap N cap H sub 2 ) group of protein fibres. Result: A stable carbon-oxygen or carbon-nitrogen bond. 2. Nucleophilic Addition The Chemistry of Synthetic Dyes. Reactive Dyes
Excellent, because the dye is chemically locked to the fibre. Typical of dyes (like Remazol)
Diploma EE BOOK all books