Stationary-pressure apparatus for producing spun-bond web

Details Stationary-pressure apparatus for producing spun-bond web Stationary-pressure apparatus for producing spun-bond web

1995-04-21

1996-11-05

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

2642107, 2642108, 26421114, 264555, 425 66, 425 831, D01D 5092, D01D 512

Patent

active

055715370

ABSTRACT:
Nonwoven spun-bond is produced by a stationary pressure apparatus in which the shaft below the spinneret has an inlet section followed by the downwardly converging intermediate section, a drawing section and a diffuser opening above the collecting belt through which air is drawn by a suction device. The process air velocity profile has an intersection point with the drawing value at the intermediate section and the distance between the intersection point and the spinneret is smaller than the distance between the intersection point and the bottom end of the drawing section.

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patent: 5336071 (1994-08-01), Kobayashi et al.
patent: 5460500 (1995-10-01), Geus et al.

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