Textiles: manufacturing – Thread finishing – Surface modification of running length
Patent
1990-05-31
1992-01-21
Schroeder, Werner H.
Textiles: manufacturing
Thread finishing
Surface modification of running length
D02J 302
Patent
active
050817531
ABSTRACT:
A process for converting a continuous multifilamentary yarn into a staple-like yarn involves continuously conveying continuous multifilamentary yarn onto a rotatable wheel having a peripheral yarn receiving groove and at least one radially disposed needle within the wheel and in registry with the groove. The needles are in various stages of retraction and extension depending upon the relative rotational position of the wheel. By laterally contacting the multifilamentary yarn in the groove, the barbs of the needles catch and break a fraction of the filemants from the side of the yarn so that the yarn is not forced upward out of its grooved path.
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Armstrong Robert N.
Fink Roger H.
BASF Corporation
Calvert John J.
Schroeder Werner H.
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