[방적] A New Concept in Cooler Design for False-Twist Texturing Systems 출판일 : 2002.07.01 저자 : P.W. Foster, R.J. Aggarwal, B.I. Lu, U.S.W. Gunasekera, and C.R. Cork 서지사항 : Textile Research Journal, Volume 72, Issue 7, 567페이지 등록일 : 2012.10.30 I 조회수 : 69 작성자 : admin |
In false twist texturing, yarns are bulked by the sequential operations of twisting, heating,
and cooling. The current speed for false twist texturing is limited by the early onset of
threadline instability. It is well known that there is a potential to increase speeds by
reducing the length of each element of the process. This paper describes the develop ment
of a short-length water cooler that operates by direct contact between water and yarn. The
important design parameters are identified and optimized, and the predicted perfor mance is
in agreement with simple transient heat transfer theory. Trials have shown that commercially
acceptable 167 decitex yarns can be produced with continuous running at 1000 m/min and
with a potential speed of 1700 m/min or more.
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