Method and apparatus for needling a fiber fleece by means of rot

Details Method and apparatus for needling a fiber fleece by means of rot Method and apparatus for needling a fiber fleece by means of rot

1999-05-13

2000-12-12

Vanatta, Amy B.

Textiles: manufacturing

Textile product fabrication or treatment

Fiber entangling and interlocking

28107, D04H 1800

Patent

active

06158097&

ABSTRACT:
In a method and apparatus for needling a fiber fleece, the needles are rotated around their own axes at least during their stitching-in motion into the fiber fleece, in order to produce a mutual twisting of fibers within the fiber fleece. In an embodiment of the invention, the needles are moreover moved in parallel to the fiber fleece in two directions orthogonal with respect to one another by drive means which are controllable independently from one another. Thereby, various variation alternatives are provided to influence the formation of stitches.

REFERENCES:
patent: 3909891 (1975-10-01), Dilo
patent: 4856152 (1989-08-01), Kis
patent: 5226217 (1993-07-01), Olry et al.
patent: 5649343 (1997-07-01), Profe
patent: 5699596 (1997-12-01), Fehrer
patent: 5732453 (1998-03-01), Dilo et al.

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