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    • 69. 发明授权
    • Islands-in-sea type composite fiber and process for producing same
    • 海岛型复合纤维及其制造方法
    • US07910207B2
    • 2011-03-22
    • US12576593
    • 2009-10-09
    • Mie KamiyamaMiyuki Numata
    • Mie KamiyamaMiyuki Numata
    • B32B19/00
    • D01F8/14D01D5/36Y10T428/29Y10T428/2924Y10T428/2929Y10T428/2931Y10T442/3089Y10T442/431Y10T442/609Y10T442/64
    • The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the range of from 10 to 1,000 nm and the intervals between the island parts adjacent to each other are 500 nm or less. The islands-in-sea type composite fiber is produced by melt spinning the sea part polymer and the island part polymer mentioned above through a spinneret for an islands-in-sea type composite fiber and taking up the spun fiber at a speed of 400 to 6,000 m/min. Dissolution and removal of the sea part polymer from the composite fiber gives a group of fine fibers having a thickness of 10 to 1,000 rim and useful for clothing, industrial materials and other applications.
    • 本发明的海岛型复合纤维包含含有容易溶解的聚合物的海水部分和每个纤维含有难溶聚合物的100个以上的岛状部分。 在复合纤维的截面轮廓中,每个岛部分的厚度在10至1000nm的范围内,并且彼此相邻的岛部分之间的间隔为500nm以下。 海岛型复合纤维通过海岛型复合纤维用喷丝头熔融纺丝上述的海水聚合物和岛状聚合物而制造,以400〜400的速度卷取纺丝纤维 6000米/分钟。 从复合纤维中溶出和除去海洋聚合物得到一组厚度为10至1,000边缘的细纤维,对于服装,工业材料和其他应用是有用的。