发明名称 |
ELECTRET FILTER MAKING METHOD |
摘要 |
A process for preparing an electret filter which comprises feeding a non-woven fabric composed of an electrically charged web of synthetic fibers through a nip of cooperating embossing and flat rolls under pressure and at a temperature below the softening temperature of said synthetic fibers, thereby subjecting the surface of said non-woven fabric to partial fusion bonding and integration. |
申请公布号 |
KR910001895(B1) |
申请公布日期 |
1991.03.30 |
申请号 |
KR19890000245 |
申请日期 |
1989.01.12 |
申请人 |
MITZUI PETRO CHE.IND.CO.,LTD. |
发明人 |
MAZURA SATOSHI;MIDO MASAYUKI;SINAKAWA YOSHIO |
分类号 |
B01D39/08;B01D39/16;D04H1/54 |
主分类号 |
B01D39/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|