The Chemistry Of Synthetic Dyes. Reactive Dyes May 2026

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

Excellent, because the dye is chemically locked to the fibre. The Chemistry of Synthetic Dyes. Reactive Dyes

The chemistry of reactive dyes centers on their unique ability to form a permanent covalent bond with the substrate, typically cellulose (cotton) or protein fibres (wool/silk). Unlike other dyes that simply "sit" on or inside the fibre, reactive dyes become a chemical part of the fibre itself. 🧪 Chemical Structure Reactive dyes consist of four primary components: The dye attaches to the fibre through a

Generally requires salt to drive the dye into the fibre and alkali to fix it. 🌍 Environmental Impact The chemistry of reactive dyes centers on their

The "business end" that reacts with the fibre (e.g., vinyl sulfone or cyanuric chloride).