公开(公告)号：WO03056086A8

公开(公告)日：2004-09-10

申请号：PCT/US0240128

申请日：2002-12-16

Applicant: INVISTA TECH SARL

Inventor： ZAFIROGLU DIMITRI P ,  HIETPAS GEOFFREY DAVID ,  MASSOUDA DEBORA FLANAGAN ,  FORD THOMAS MICHAEL

IPC: D04H1/50 ,  D04H1/70 ,  D04H3/02 ,  D04H1/06

CPC classification number: D04H5/00 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/4391 ,  D04H1/50 ,  D04H3/00 ,  D04H3/14 ,  Y10T428/2922 ,  Y10T428/2925 ,  Y10T428/2929 ,  Y10T428/2936 ,  Y10T442/601 ,  Y10T442/627 ,  Y10T442/629 ,  Y10T442/632 ,  Y10T442/635 ,  Y10T442/637 ,  Y10T442/638 ,  Y10T442/64 ,  Y10T442/641 ,  Y10T442/69 ,  Y10T442/697

Abstract: A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are capable of developing three-dimensional spiral crimp, activating the spiral crimp by heating substantially nonbonded web under free shrinkage conditions during which the nonwoven remains substantially nonbonded, followed by bonding the crimped nonwoven web using an array of discrete mechanical, chemical, or thermal bonds. Nonwoven fabrics prepared according to the method of the current invention have an improved combination of stretch-recovery properties, textile hand and drape compared to multiple-component nonwoven fabrics known in the art.

Abstract translation: 一种制备可拉伸粘合非织造织物的方法，其包括形成能够显影三维螺旋卷曲的多组分连续长丝或短纤维的基本上非粘合的非织造纤维网，通过在自由收缩条件下加热基本上未粘合的纸幅来活化螺旋卷曲 其中非织造材料基本上未粘合，然后使用离散的机械，化学或热粘合的阵列粘合卷曲的非织造纤维网。 与本领域已知的多组分非织造织物相比，根据本发明的方法制备的非织造织物具有改进的拉伸恢复性能，纺织品手感和悬垂性的组合。