ACETATE CONJUGATE FIBER AND ITS PRODUCTION

摘要

PURPOSE:To obtain an acetate conjugated fiber having bulkiness and softness. CONSTITUTION:This conjugated fiber is produced by conjugating side-by-side cellulose or a cellulose acetate of less than 48.8% average acetylation degree and a cellulose triacetate of 56.2 to 62.5 acetylation degree at a weight ratio of the former: the latter of 35:65 to 5:95. The fiber is obtained by treating a precursor fiber with alkali, where the precursor fiber is formed by conjugating a cellulose diacetate of less than 56.2% average acetylation degree and a cellulose triacetate of 56.2 to 62.5% average acetylation degree side by side at a weight ratio of the former: the latter of 40:60 to 10:90.