公开(公告)号：US20220403565A1

公开(公告)日：2022-12-22

申请号：US17642877

申请日：2020-08-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Wataru Nakayama ,  Kazuhiko Mizuno ,  Kentaro Tamura ,  Akihiko Mitsui

IPC: D03D1/00 ,  D03D13/00 ,  D03D15/46 ,  D03D15/507 ,  H01F1/153 ,  H01F1/28 ,  H01F1/37 ,  H05K9/00

Abstract: To provide an electromagnetic shielding material that has excellent shape following properties and can exhibit high electromagnetic wave shielding properties even in a deformed portion. A flexible magnetic film fabric (100) of one embodiment includes a plurality of first magnetic strips (10) extending in a first direction (11) and arranged substantially in parallel at a first pitch P1 along a second direction (12) orthogonal to the first direction (11); and a plurality of second magnetic strips (20) extending in a third direction (21) different from the first direction (11) and arranged substantially in parallel at a second pitch P2 along a fourth direction (22) orthogonal to the third direction (21). Each of the first magnetic strips (10) has a first average width W1, W1/P1 being from 0.05 to 0.98, and each of the second magnetic strips (20) has a second average width W2, W2/P2 being from 0.05 to 0.98.