Method and apparatus for manufacturing a crimped compound thread
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United States of America Patent
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Nov 24, 2015
Grant Date -
Jun 6, 2013
app pub date -
Feb 1, 2013
filing date -
Feb 4, 2005
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Abstract
The invention relates to a method and a device for producing a crimped composite thread, wherein the inventive method consists in extruding, cooling and in drawing several yarns in the form of a plurality of strand filaments and in jointly crimping them in order to obtain a crimped composite thread. The aim of said invention is to make it possible to pre-treat the threads in a manner adaptable to each treatment step. The aim is attained by that at least one multi-treaded yarn is whirl-tangled many times during several operations prior to crimping. For this purpose, a whirl-tangling device provided with a plurality of whirl-tangling units following each other in a direction of the yarn displacement is used.
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