| 摘要 |
<p>The process for transforming a yarn of fibres which is obtained by spinning with released fibres consists in subjecting the same single portion of the continuously running yarn to three combined and simultaneous actions, the first of partial and momentary untwisting sufficient to allow the fibres to slide relative to each other, the second of reduced drawing to a ratio of between 1.10 and 1.25, and the third of controlling the fibres while they slide. The device comprises a pair of input rolls (2, 2') delivering the yarn (1) at a speed V1, a rod (3) twisted about itself into a helix along its lengthwise axis, and movable in rotation about the said axis, and a pair of output rolls (5, 5') delivering the converted yarn (1a) at a speed V2 of between 1.10 and 1.25 V1. <IMAGE></p> |
