Textiles: fiber preparation – Working – Carding
Patent
1990-03-26
1991-01-01
Schroeder, Werner H.
Textiles: fiber preparation
Working
Carding
D01G 2500, D01G 3300
Patent
active
049809512
ABSTRACT:
A method for making slivers of fibers with parallelized fibers from sets of tangled or matted fibers includes the steps of winding a pre-measured amount of partially oriented fiber material onto a first carding drum (3), detaching the annular fiber web from the first carding drum (3) at a specific site and separating the web from the drum. The separated fiber web is wound off the first carding drum by the detached free end of the web, and the fiber web is stretched. The stretched fiber web is wound onto a second carding drum (8) folded over onto itself, and the doubled fiber web is detached from the second carding drum at a specific site. The detached fiber web is wound off the second carding drum (8) by the detached free end of the fiber web and the fiber web is again stretched. The stretched fiber web is wound onto the first carding drum and the winding and stretching steps are repeated until satisfactory parallelization has taken place, whereupon the iteration cycle is ended. An apparatus for performing the method is disclosed.
REFERENCES:
patent: 4723343 (1988-02-01), Bernhardt et al.
Georgi Spiridonow, "Messungen mit Einem Neuen Halbautomatischen Langenmessgerhat und Vergleich mit den Langenkennwereten Bekannter Bauarten", Oct. 1978, pp. 780-782.
Beeler Alfred
Gloor Rene
Muller Michael
Calvert John J.
Farley Walter C.
Schroeder Werner H.
Siegfried Peyer AG
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