Title:
加圧蒸気噴出ノズルと同ノズルを用いた不織布の製造方法
Document Type and Number:
Japanese Patent JP4439854
Kind Code:
B2
Abstract:
The present invention relates to a nozzle suitable for jetting high pressure and high temperature steam, and a method and an apparatus for producing an entangled nonwoven fabric using the nozzle. According to the apparatus, a steam inlet side main conduit (c1) and a steam outlet side conduit (c3) are connected with both end parts of a tubular nozzle holder (11) in a longitudinal direction provided integrally with nozzle members (15, 16, 23) having a plurality of nozzle holes (16a, 26). A steam outlet side conduit (c2) is provided with an opening/closing valve (55) and a trap conduit (57) is branched from a conduit at an upstream side from the opening/closing valve (55). By opening the opening/closing valve (55), a rapid temperature rise of the nozzle holder (11) can be enabled at a time of starting a production of a nonwoven fabric. Furthermore, even in the opening/closing valve (55) is closed in a regular operation, drainage generated inside the nozzle holder (11) can always be discharged to outside so that steam can be jetted stably and continuously, and thus a high quality entangled fiber nonwoven fabric can be produced continuously from the fiber web by the steam.
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Inventors:
Masahiro Taniguchi
Tomio Suzuki
Shinichi Shimizu
Tomio Suzuki
Shinichi Shimizu
Application Number:
JP2003283099A
Publication Date:
March 24, 2010
Filing Date:
July 30, 2003
Export Citation:
Assignee:
Mitsubishi Rayon Engineering Co., Ltd.
International Classes:
D02J1/08; D04H1/492
Domestic Patent References:
| JP7310267A | ||||
| JP50152067A | ||||
| JP2164357A |
Foreign References:
| US3458905 |
Attorney, Agent or Firm:
Takeo Noguchi
Katsutoshi Shiozawa
Katsutoshi Shiozawa