reactive dyes

Can be used on all types of fibre and can produce a wide range of colours. They are called reactive dyes because they react with the fibre molecules to form a covalent dye/fibre bond. A great deal of experimentation went into the development of reactive dyes. The first reactive dyes were marketed by ICI in 1955 under the brand name Procion, which was developed by Professor Ratee and Dr Stephens.