Patent ID: 7273578
Filing Date: 2007-09-25
Classification: D02J

Abstract:
1. A process of continuously drawing fibers comprising: (a) feeding the fiber at an inlet speed to an apparatus for fiber drawing, (b) providing the fiber drawing apparatus, which comprises a conveyer-drawing structure comprising at least two conveyer-drawing members for conveying and simultaneous drawing of the fiber, wherein the conveyer-drawing members are disposed about a central axis, which is parallel to a direction of conveying, and have receiving ends for receiving the fiber and delivery ends for delivering the fiber, and both the receiving and delivery ends are spaced along the central axis, wherein the delivery ends are spaced further from the central axis than the receiving ends, (c) laying the fiber continuously into coiled loops on the receiving ends of the conveyer-drawing members, (d) drawing the fiber at a draw temperature and speed by expanding a circumference of the fiber loops while conveying the fiber loops along the central axis from the receiving ends to the delivery ends by the conveyer-drawing members, a layer comprising the coiled fiber loops being formed on the conveyer-drawing members, (e) taking off continuously the leading fiber loops from the delivery ends of the conveyer-drawing members, and (f) conveying the drawn fiber from the fiber drawing apparatus at an outlet speed V