DYEING OF REGENERATED CELLULOSE FILAMENTS
1325317 Dyeing regenerated cellulose with direct dyes COURTAULDS Ltd 29 Dec 1970 [30 Dec 1969] 63234/69 Heading D1B Regenerated cellulose which contains an aminoethyl ether of cellulose is dyed with a direct dye. The aminonitrogen content of the aminoethyl ether of cellulose is preferably at least 2% by weight, and is preferably at least 0.06 per cent by weight of the total cellulose. The regenerated cellulose derivative may be mixed with other filaments or fibres of different affinity for direct dyes to obtain variable dyeing effects.