Shape and Orientation of Fibers in Slivers and Effects of Direction of Drafting on Yarn Strength

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概要

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• The authors have studied the shape and the orientation of fibers in slivers and their changes induced by drafting. Short dyed yarns were used as tracers. The experimental results coincide with what Morton has already showed. The orientation index was measured in relation to the shape of fibers by Lindsley's method.<BR> With O. I. (+) defined as the value gained in combing slivers forward and O. I. (-) as the value gained in combing them backward, the experiment has shown that O. I. (+) differed from O.<BR> I. (-) . This difference is maximum in card slivers, and decreases by degrees in later processes. This suggests that the direction of drafting affects yarn quality.<BR> Some experiments on the ordinary cotton sppinning process-carding, the three processes of drawing, the roving process and spinning-have shown that yarn strength increase if card slivers are fed to the first drawing frame in the same direction as that of delivery from the card.

• 社団法人 日本繊維機械学会の論文

著者

• 田畑 昌顕

  東京工業大学

• 早川 亀雄

  明和紡績

• 滝沢 通

  中部化繊

関連論文

• A Theory on Structure of Sliver Part 2:Irregularity in Thickness and Weight of Sliver.
• A Theory on Structure of Slivers:Part 3 : Exprimental Studies
• Shape and Orientation of Fibers in Slivers and Effects of Direction of Drafting on Yarn Strength
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• A Theory of Structure of Slivers:Part 1 : An Expression for Structure of Slivers

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