公开(公告)号：WO1996017726A1

公开(公告)日：1996-06-13

申请号：PCT/US1995006570

申请日：1995-05-23

Applicant: INTERNATIONAL PAPER COMPANY

Inventor： INTERNATIONAL PAPER COMPANY ,  HOWEY, Jon, A. ,  MARTIN, Timothy, A.

IPC: B32B27/00

CPC classification number: B32B5/26 ,  B32B5/022 ,  B32B7/12 ,  B32B23/08 ,  B32B27/36 ,  B32B2250/20 ,  B32B2262/0276 ,  B32B2262/04 ,  B32B2367/00 ,  B32B2429/02 ,  D04H1/4258 ,  D04H1/4374 ,  D04H1/559 ,  G11B23/0326 ,  G11B23/0332 ,  G11B23/505 ,  Y10T428/24826 ,  Y10T442/637 ,  Y10T442/669

Abstract: This invention generally relates to a nonwomen fabric (30) for use as a liner for the magnetic recording medium in a computer diskette. More particularly, it is concerned with a thermally bonded, multi-layer, composite nonwoven which includes a distinct top magnetic media contacting layer (100) having 25-100 % rayon fibers, and middle and bottom layers (110, 120) being substantially free of rayon fibers. The middle layer (110) is composed of a plurality of webs (115) each comprising a blend of matrix thermoplastic fibers and binder fibers. The binder fibers in the middle layer (110) are isolated from the two exterior layers (100, 120). The bottom cartridge contacting layer (120) comprises 100 % matrix thermoplastic fibers. The cartridge contacting layer (120) prevents the lower melting thermoplastic fibers in the middle layer from sticking to calender rolls during thermal bonding. This structure provides a liner with superior wiping and hygroscopic dimensional stability and low debris characteristics.

Abstract translation: 本发明一般涉及用作计算机磁盘中的磁记录介质的衬垫的非女性织物（30）。 更具体地，涉及热粘合的多层复合非织造材料，其包括具有25-100％人造丝纤维的明显的顶部磁性介质接触层（100），中层和底层（110,120）基本上不含 人造纤维。 中间层（110）由多个纤维网（115）组成，每个纤维网包含基质热塑性纤维和粘合纤维的共混物。 中间层（110）中的粘合剂纤维与两个外层（100,120）分离。 底部筒接触层（120）包括100％的基质热塑​​性纤维。 盒接触层（120）防止中间层中的较低熔点的热塑性纤维在热粘合期间粘附到压延辊上。 该结构提供了具有优异的擦拭和吸湿尺寸稳定性以及低碎屑特性的衬垫。