Method for producing an effect yarn on an open-end rotor spinning machine, and corresponding effect yarn
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United States of America Patent
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Nov 25, 2008
Grant Date -
Jul 5, 2007
app pub date -
Oct 13, 2004
filing date -
Nov 21, 2003
priority date (Note) -
Expired
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Abstract
A method for producing an effect yarn on an open-end rotor spinning machine, formed from an alternating line-up of yarn sections and effects consisting of pre-determined thickenings, wherein an effect is produced where the yarn is joined by means of a piecing end, in the piecing region of the yarn located downstream of the piecing end, following a break in the thread. The quality of the yarn produced in this way is improved such that unwanted deviations from the pre-determined repeat of pattern of the effect yarn, caused by piecing regions, are eliminated.
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