MECHANICALLY CRIMPED FIBER TOW HAVING INCREASED BULK AND CRIMP TAKE-UP
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United States of America Patent
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Issued Date -
Apr 27, 2017
app pub date -
Jun 12, 2015
filing date -
Jun 13, 2014
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Abstract
An improved fiber tow and process for forming the same is disclosed. The fiber tow may include a plurality of mechanically crimped fibers with a primary crimp having a saw tooth crimp shape. For fiber tows comprising fibers with denier per filament of greater than about 5, the plurality of mechanically crimped fibers have an average crimp take-up of greater than about 40%. For fiber tows comprising fibers with denier per filament of less than about 5, the plurality of mechanically crimped fibers have an average crimp take-up of greater than about 30%.
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