Sulphonated regenerated cellulose fibre and vinyl] sulphonic starch

摘要

Sulphonated regenerated cellulose fibres (I) are produced by: (i) adding a modifier (II) to a viscose compsn., alkali cellulose or cellulose soln.; and (ii) spinning into fibres; where: (1) (II) is: (A) a starch (IIA) etherified with 2-5 C alkyl sulphonic acid gps., with a deg. of substitution of 0.1-3; (B) a starch crosslinked with vinylsulphonic acid or a styrene sulphonic acid; (C) a styrene sulphonic acid polymer; or (D) vinylsulphonic acid polymer. Also claimed are: (a) the prodn. of a dyed or printed textile material from (I) by converting the fibres to woven or knitted fabric and dyeing or printing with cationic dye(s); (b) (IIA) with a deg. of substitution of 0.1-3, pref. 0.11-2; and (c) prepn. of the starch (IIA).