Method for measuring yarn shrinkage and crimp development
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United States of America Patent
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Oct 20, 1981
Issued Date -
N/A
app pub date -
Jun 11, 1980
filing date -
Jul 12, 1979
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Expired
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Abstract
A method for measuring continuously shrinkage and crimp development in a long continuous sample of yarn involves the steps providing a zero-tension loop, applying a standard tension, then developing crimp in a single downward pass through a hot air chamber providing a second zero-tension loop and thereafter retensioning it. The shrinkage and crimp development is calculated from differential speeds of rolls advancing the yarn.
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