The Chemistry Of Synthetic Dyes. Reactive Dyes Review

Generally requires salt to drive the dye into the fibre and alkali to fix it. 🌍 Environmental Impact

Known for incredibly vivid and brilliant shades. The Chemistry of Synthetic Dyes. Reactive Dyes

The dye attaches to the fibre through a chemical reaction triggered by alkaline conditions (high pH). There are two main types of reaction mechanisms: 1. Nucleophilic Substitution Generally requires salt to drive the dye into

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