Method and apparatus for examining hairiness of yarn
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United States of America Patent
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Aug 14, 1990
Issued Date -
N/A
app pub date -
Feb 7, 1989
filing date -
Dec 17, 1985
priority date (Note) -
Expired
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Abstract
The yarn (3) is illuminated by a transmitter (1) and the light reflected by the yarn surface is fed to a detector (5) and evaluated, the optical path being selected such that the receiver (5) receives light only from that side of the yarn (3) that is not illuminated.
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