发明名称 |
ELECTROMAGNETIC WAVE ABSORBING FIBER, ELECTROMAGNETIC WAVE ABSORBING FABRIC, ELECTROMAGNETIC WAVE SHIELDING FABRIC, ELECTROMAGNETIC WAVE SHIELDING SHEET, ELECTROMAGNETIC WAVE SHIELDING MATERIAL AND ELECTROMAGNETIC WAVE SHIELD CASING |
摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic wave shielding fabric woven in completely the same manner as a conventional fabric so as to having larger electromagnetic wave shielding performance by enlarging the surface ratio of a metal wire material and an electroconductive carbon fiber exposed to the surface as much as possible. SOLUTION: A mixed fiber 2 constituting the electromagnetic wave shielding fabric 6 is formed by Z twist (4a) and S twist (4b) of a stainless steel wire material 4 having 80μm thickness in a bundle 3 of two or more polyester fibers and a carbon fiber 7 is used as a weft yarn. The stainless steel wire material 4 has good stretchability as it is twisted around a nylon fiber 3 having a required size and the formed mixed fiber 2 has sufficient strength and flexibility, so the mixed fiber can be woven by a conventional loom. The measured shielding performance of the electromagnetic wave shielding fabric 6 shows≥60 dB in a wide frequency range of 0.1 MHz to 1 GHz and≥70 dB in a frequency range of 0.1 MHz to about 40 MHz. COPYRIGHT: (C)2007,JPO&INPIT
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申请公布号 |
JP2007169804(A) |
申请公布日期 |
2007.07.05 |
申请号 |
JP20050365907 |
申请日期 |
2005.12.20 |
申请人 |
MATSUYAMA KEORI KK |
发明人 |
TANAKA TOSHIAKI |
分类号 |
D02G3/12;D02G3/16;D02G3/44;D03D1/00;D03D15/00;D04B21/20;H05K9/00 |
主分类号 |
D02G3/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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