Title:
不織布ウエッブを生産するための改良された方法と装置
Document Type and Number:
Japanese Patent JP3762791
Kind Code:
B2
Abstract:
A process for producing a non-woven polymeric fabric web, such as a spunbond web, having filaments of 0.1 to 5 denier with equivalent production rates. A plurality of continuous polymeric filaments is extruded from an extruder and attenuated by a drawing unit that includes a longitudinal elongated slot strategically positioned at an optimum distance very close to the spinneret. A web forming table is positioned below the drawing unit for collecting the filaments and forming the filaments into a non-woven fabric web. At startup, throughput is nominal, air pressure is below 20 psig, and the spinneret is positioned more than 100 cm away from the drawing unit. Gradually, throughput is greatly increased by simultaneously increasing air pressure while reducing the distance between the spinneret and the drawing unit. Coordinating the adjustment of the throughput with air pressure and distance reduction of the spinneret and the drawing unit produces the finest filaments at equivalent production or the same filament size at the highest production rate and lowest cost.
Inventors:
Lou, Humin
Application Number:
JP53343397A
Publication Date:
April 05, 2006
Filing Date:
August 12, 1996
Export Citation:
Assignee:
Ason Engineering, Limited
International Classes:
D04H3/03; D01D5/12; D04H3/16
Domestic Patent References:
| JP5096032U | ||||
| JP48038025B1 | ||||
| JP49030861B1 | ||||
| JP50071912A | ||||
| JP52008178A | ||||
| JP52055779A | ||||
| JP54101982A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Toru Mori
Yutaka Yoshida
Hajime Asamura
Toru Mori
Yutaka Yoshida