Method and apparatus for recycling selvage warp yarns

Details Method and apparatus for recycling selvage warp yarns Method and apparatus for recycling selvage warp yarns

2000-10-27

2001-05-08

Falik, Andy (Department: 3765)

Textiles: weaving

Fabric manipulation

Selvage trimmers

Reexamination Certificate

active

06227254

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to a method of recycling selvage warp yarns in a fabric weaving operation and an apparatus for carrying out the method.
BACKGROUND OF THE INVENTION
Heretofore, the selvage warp yarns that bind the fill yarns during the weaving operation were slit from the fabric warp yarns and discarded.
DE 3025744 discloses an apparatus wherein the selvage warp yarns are spaced from the main warp yarns forming the fabric. The continuous selvage warp yarns are spliced from the main fabric body after weaving, the cut warp yarns are removed, and the selvage warp yarns are returned to the weaving machine.
This invention is also directed to a method and apparatus for reducing waste by recycling the warp yarns of the selvage. The selvage warp yarns are guided in a continuous pattern through the loom, returned through a spreader means to discard the cut fill fringe yarns and recombined to go through the loom again.
SUMMARY OF THE INVENTION
In accordance with the practice of the invention, there is provided a method of recycling selvage warp yarns in a weaving operation comprised of:
a. providing a plurality of selvage warp yarns which form a continuous loop through the loom;
b. feeding the selvage warp yarns next to an outer fabric warp yarn;
c. weaving fill yarns through all of the warp yarns;
d. slitting the fill yarns between the outer fabric warp yarn and the inner selvage warp yarn;
e. passing the selvage warp yarns through a separator to allow the cut fill yarn fringe ends to dislodge from the selvage warp yarns; and
f. recombining the selvage warp yarns to feed through the loom again
wherein the method is characterized by:
after slitting the fill yarns between the outer fabric warp yarn and the inner selvage warp yarn, passing the cut fill yarns fringe ends and the selvage warp yarns through a shaker bar to shake the cut fill fringe yarns from the continuous selvage warp yarns.
There is also provided an apparatus for recycling the selvage warp yarns in a weaving operation comprising:
a. means for guiding a plurality of continuous selvage warp yarns into a loom;
b. a loom to weave the warp yarns with fill yarns into a fabric;
c. a slitter means for slitting the fill yarns between an innermost selvage warp yarn and an outermost main fabric warp yarn;
the apparatus being characterized by:
d. guide rollers to direct the cut selvage portion through a horn guide;
e. a shaker bar to shake the cut fill fringe yarns from the continuous selvage warp yarns; and
f. a spreader bar having spaced guides for each continuous selvage warp yarn to aid in dislodging the fill fringe yarn.


REFERENCES:
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patent: 4498504 (1985-02-01), Allen et al.
patent: 4513791 (1985-04-01), Dillon
patent: 5560400 (1996-10-01), Meyns et al.
patent: 5735316 (1998-04-01), Hehle
patent: 30 25 744 (1982-01-01), None
patent: 0 251 017 (1988-01-01), None
patent: 2 153 250 (1973-05-01), None

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