Apparatus for needling a nonwoven web

Details Apparatus for needling a nonwoven web Apparatus for needling a nonwoven web

1991-05-10

1992-09-22

Schroeder, Werner H.

Textiles: manufacturing

Textile product fabrication or treatment

Fiber entangling and interlocking

D04H 1800

Patent

active

051485842

ABSTRACT:
In order to produce a needled nonwoven web having an improved surface quality, the needle board (1) of an apparatus for needling a nonwoven web should be provided with needles in a higher needle density. To that end the needles (2) of the needle board (1) are arranged in groups having a higher needle density and a perforated plate (5) of the stripper (4) and a perforated plate of the backing member (3) are provided in association with each group of needles with a common receiving hole (7). The needles (2) of each group are arranged in a longitudinal row generally extending in the direction of travel of the nonwoven web and are transversely offset from each other.

REFERENCES:
patent: 84325 (1968-11-01), Waring
patent: 2385870 (1945-10-01), Lashar et al.
patent: 3199166 (1965-08-01), Petersik
patent: 3397436 (1968-08-01), Zocher
patent: 3485709 (1969-12-01), Evans et al.

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