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Abstract:
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As the cost of raw materials continues to influence the
manufacturing costs of textiles considerably, the textile
industry must use raw materials as efficiently as possible,
with careful recycling of textile by-products. One such byproduct
is reworkable fibers. Because manufacturers may not
know the exact relationship between increasing percentages
of reworkable polyester/cotton and polyester/rayon fibers
this work was performed.
Forty-six yarn conditions were spun from 65/35
polyester/cotton and polyester/rayon stock. Five levels of
reworkable fibers were produced for each fiber type; half
were processed through the A.T.C. opening system and half
through a hopper feeder.
This research determined an increase in reworkable
fibers from 5% to 15% did not affect yarn quality. However,
an increase in reworkable fibers from 0% to the 5% to 15%
range did affect certain properties depending on the
spinning system used.
This work also determined that reprocessing fibers
alters fiber-to-fiber cohesion values. Because of cohesion
differences between reworkable fibers and virgin stock, the
percentage of reworkable fibers altered draw frame drafts.
Therefore, it is of the utmost importance when processing
reworkable fibers to introduce a consistent percentage.
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