湿潤液体および水性極性液体を用いた繊維エレクトレットウェブを製造するための方法および装置

Title:

湿潤液体および水性極性液体を用いた繊維エレクトレットウェブを製造するための方法および装置

Document Type and Number:

Japanese Patent JP4518725

Kind Code:

B2

Abstract:

A method for imparting an electrostatic charge to a nonwoven fibrous web 20. The fibrous web 20 is contacted with a liquid solution that includes water and a non-aqueous water soluble component, followed by drying 31. The resulting dried product is an electret article 43 that could be used as an air filter in, for example, a respirator 50.

Inventors:

Philip Di Aitman
Alan Di Rousseau

Application Number:

JP2001529835A

Publication Date:

August 04, 2010

Filing Date:

January 24, 2000

Export Citation:

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Assignee:

3M INNOVATIVE PROPERTIES COMPANY

International Classes:

A62B18/02; D06M11/05; B01D39/14; B01D39/16; B03C3/28; D01F1/10; D01F6/06; D04H1/42; D04H3/16; D06M11/00; D06M13/127; D06M13/144; D06M13/148; D06M13/352; D06M13/358; D06M23/10; D06M101/20

Domestic Patent References:

JP3193960A

Foreign References:

WO1997007272A1

Attorney, Agent or Firm:

Takuji Yamada
Mitsuo Tanaka
Aoyama Aoi
Akira Ito

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