Textile colouration process and textiles coloured thereby

A process for colouring textiles with an aqueous preparation of reactive dyestuff and linear polyalkylene imine. pH of preparation adjusted to prevent unduly fast reaction before applied to textile and baked. Convenient source of linear polyalkylene imines is hydrolysed poly 2-ethyl-2-oxazoline. Coloured textiles are brighter than from corresponding process using polymerised alkylene imines which are branched at nitrogen atom.