公开(公告)号：US5269996A

公开(公告)日：1993-12-14

申请号：US943824

申请日：1992-09-14

申请人： Benedict M. Lee ,  Charles S. Winebarger

发明人： Benedict M. Lee ,  Charles S. Winebarger

IPC分类号： D01F2/30 ,  D01D10/06 ,  D01F1/02

CPC分类号： D01F2/30

摘要： A method for producing ultra fine denier cellulose acetate fibers that entails spinning a spinning solution containing adequately high amounts of cellulose acetate in acetone wherein the cellulose acetate has a falling ball viscosity of 15 to 70 seconds wherein the spinning is conducted through spinnerettes having holes that have a diameter of less than 36 microns followed by drying at a temperature of about 50.degree. to 80.degree. C. at a draw ratio of 0.9 to 1.7.

摘要翻译： 一种生产超细旦纤维素乙酸酯纤维的方法，其需要将含有足够高量乙酸纤维素的纺丝溶液在丙酮中纺丝，其中乙酸纤维素的降落球粘度为15至70秒，其中纺丝通过具有孔的喷丝板进行， 直径小于36微米，然后在约50至80℃的温度下以0.9至1.7的拉伸比进行干燥。