CELLULOSE ACETATE FIBER, CELLULOSE ACETATE TOW BAND, AND METHOD FOR PRODUCING CELLULOSE ACETATE TOW BAND

摘要

The purpose of the present invention is to reduce the clogging of spinning holes with lapse of spinning time in a cellulose acetate tow band in spite of the fact that cellulose acetate having a small titanium oxide content or containing no titanium oxide is used, thereby preventing the decrease in ventilation resistance of the cellulose acetate tow band. A cellulose acetate fiber having a titanium oxide content of 0.05% by weight or less, a calcium content of 20 ppm or less and a magnesium content of 30 ppm or more.