Process and apparatus for producing a nonwoven web

Details Process and apparatus for producing a nonwoven web Process and apparatus for producing a nonwoven web

1991-02-07

1992-06-02

Schroeder, Werner H.

Textiles: fiber preparation

Working

Carding

191457, 19296, 19302, D01G 1526

Patent

active

051175355

ABSTRACT:
For the production of a nonwoven web from a primary nonwoven web a conventional carding drum is used as well as a collecting surface, on which a vacuum is applied and which is continuously moved and serves to collect the fibers flying from the carding drum. In order to ensure desirable conditions for the entrainment of the fibers flying off, the fibrous covering on the carding drum is sucked from consecutive layers on consecutive portions of the surface of the drum so as to from partial streams of fibers in suction passages between the carding drum and the collecting surface.

REFERENCES:
patent: 2913365 (1959-11-01), Osborne et al.
patent: 3894315 (1975-07-01), Fukuta et al.
patent: 4130915 (1978-12-01), Gotchel et al.
patent: 4534086 (1985-08-01), Fehrer
patent: 4583267 (1986-04-01), Fehrer
patent: 4706338 (1987-11-01), Anspach
patent: 4799294 (1989-01-01), Fehrer
patent: 4972551 (1990-11-01), Fehrer
patent: 5007137 (1991-04-01), Graute

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