Scrap fiber refeed system and method

Details Scrap fiber refeed system and method Scrap fiber refeed system and method

1997-05-14

1998-07-14

Chowder, C. D.

Textiles: fiber preparation

Working

Carding

191455, D01G 1300

Patent

active

057784922

ABSTRACT:
An apparatus for refeeding scrap fibers into a gaseous stream of virgin fibers and mixing the scrap fibers with the virgin fibers to form a fibrous mat includes a fiber opener for opening up and substantially eliminating scrap fiber clumps and nodules from a supply of scrap fibers by releasing scrap fibers from the clumps and nodules. The scrap fibers are conveyed by a laminar airstream from the fiber opener to a virgin fiber containing gaseous stream where the scrap fibers are mixed with the virgin fibers and the mixture of fibers is collected to form a fibrous mat. The laminar airstream for conveying the scrap fibers is preferably formed by passing the airstream through a venturi eductor to reduce turbulence and impart a more laminar flow to the airstream to reduce scrap fiber entanglement in the conveying airstream. Preferably, the scrap fibers are introduced into the conveying airstream from the fiber opener by creating a low pressure zone at an outlet of the fiber opener with the airstream which draws the scrap fibers from the fiber opener into the airstream.

REFERENCES:
patent: 4317260 (1982-03-01), Blackburn
patent: 4914787 (1990-04-01), Leifeld
patent: 5331801 (1994-07-01), Heifetz
patent: 5481864 (1996-01-01), Wright

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