Dye mixtures for producing fast blue and navy blue dyeings on mixed materials of polyester and cellulose fibres

摘要

Dye mixtures consisting of (1) 20 to 80 per cent by weight of one or more blue disperse monoazo dyes, (2) 10 to 40 per cent by weight of one or more vat dyes from the series COLOUR INDEX Vat Blue 43 and 47 (C.I. 53,630) and/or COLOUR INDEX Vat Blue 42 (C.I. 53,640) and (3) 10 to 40 per cent by weight of one or more indcarbon dyes from the series COLOUR INDEX Sulphur Black 11 (C.I. 53,290) and/or COLOUR INDEX Sulphur Black 6 (C.I. 53,295) and/or COLOUR INDEX Sulphur Black 7 (C.I. 53,300), processes for their preparation and their use in liquid or powder form for dyeing mixed materials of polyester and cellulosic fibres.