Presented at the conjerence 'Carpets in the 70s: ht.ld b.y the Manchester Region, at UMIST, Manchester, on 10 October 1973, Mr J. K. Hoyle in the chair The three main methods of producing multicolour patterns on carpet piece, other than by conventional printing, are reviewed under the general classificution ofi Winch dyeing of carpets composed of producer-or dyer-modified yarns. The application of multicolour dye streanis, continuously or intermittently, under continuousprocessing conditions. Transfer of'patterns from suitably impregnated papers.