公开(公告)号：US06866931B2

公开(公告)日：2005-03-15

申请号：US10482416

申请日：2002-03-19

申请人： Satoru Takeuchi ,  Masakazu Hoshino ,  Ryo Ochi ,  Yukio Kasabou ,  Eizou Sakurai ,  Masanori Akasaka

发明人： Satoru Takeuchi ,  Masakazu Hoshino ,  Ryo Ochi ,  Yukio Kasabou ,  Eizou Sakurai ,  Masanori Akasaka

IPC分类号： D01F6/54 ,  D01F8/00

CPC分类号： D01F6/54 ,  Y10T428/2924 ,  Y10T428/2929 ,  Y10T428/2931 ,  Y10T428/2965 ,  Y10T428/2975

摘要： An object of this invention is to provide an acrylonitrile based composite fiber having a new feeling different from that of an ordinary cellulose acetate fiber, cellulose fiber and acrylic fiber, excellent spinability, fiber properties and process ability of yarn spinning, and excellent functions, in particular, a deodorizing function and a moisture absorbing and retaining property.The composite fiber is comprised of 10 to 40% by weight of cellulose acetate and/or cellulose and 60 to 90% by weight of an acrylonitrile based polymer, and has a structure with the cellulose acetate and/or cellulose forming an island component in a cross section perpendicular to a fiber axis and the acrylonitrile based polymer forming a sea component. Preferably, the cellulose acetate and/or cellulose as the island component communicate with another island component in the fiber axis direction, a vacant hole is provided inside the fiber, or a ratio of the longest diameter and the shortest diameter of the fiber cross section is 2 or less, and 5 or more recess parts of 0.3 μm or more and 3 μm or less width and 0.3 μm or more and 3 μm or less depth are provided in a fiber cross section outer circumferential part. Further preferably, by applying a heat treatment under alkali in a production stage, the moisture absorbing and retaining property can be improved.

摘要翻译： 本发明的目的是提供一种具有与普通醋酸纤维素纤维，纤维素纤维和丙烯酸纤维不同的新感觉的丙烯腈系复合纤维，具有优异的纺丝性，纺丝性能和加工能力以及优异的功能， 具体地，除臭功能和吸湿保持性。复合纤维由10至40重量％的乙酸纤维素和/或纤维素和60至90重量％的丙烯腈基聚合物组成，并且具有 在与纤维轴垂直的横截面中形成岛成分的纤维素乙酸酯和/或纤维素和形成海成分的丙烯腈系聚合物。 优选地，作为岛成分的乙酸纤维素和/或纤维素与纤维轴方向上的另一个岛成分连通，在纤维内部设置有空洞，或者纤维横截面的最长直径与最短直径的比为 2个以下，5个以上的凹部为0.3μm以上3μm以下，0.3μm以上3μm以下的凹部设置在纤维截面外周部。 进一步优选通过在生产阶段对碱进行热处理，能够提高吸湿保持性。

公开(公告)号：US5955169A

公开(公告)日：1999-09-21

申请号：US719889

申请日：1996-09-25

申请人： Masakazu Hoshino ,  Eizou Sakurai ,  Hajime Itoh ,  Kunio Iwase ,  Toshio Nagasaka

发明人： Masakazu Hoshino ,  Eizou Sakurai ,  Hajime Itoh ,  Kunio Iwase ,  Toshio Nagasaka

IPC分类号： G11B5/702 ,  G11B23/03

CPC分类号： G11B23/0313 ,  G11B5/7021

摘要： A floppy disk in which the binder for fixing a magnetic substance in the recording layer of the magnetic disk is a polyester polyurethane and the liner of the jacket contains an acrylic fiber and in addition a fiber treating agent having a surface tension in a specific range. The floppy disk is excellent in workability, can be prepared in high yields because the number of dusts generated upon its preparation is small, and also is excellent in the permanence of recording performance.

摘要翻译： 其中用于将磁性物质固定在磁盘的记录层中的粘合剂是软化
盘是聚酯聚氨酯，并且护套衬套含有丙烯酸纤维，另外还具有特定范围内的表面张力的纤维处理剂。 该软盘具有优异的可加工性，可以高产量地制备，因为其制备时产生的粉尘数量小，并且记录性能的持续性也优异。