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IJFTR Vol.37(4) [December 2012] >

Title: Performance characteristics of viscose ring and air-jet spun yarns as a consequence of draw frame speed and its preparatory process
Authors: Tyagi, G K
Shaw, S
Keywords: Air-jet spinning
Card draft
Compressional resilience
Ring-spun yarn
Second nozzle pressure
Wrapper fibres
Issue Date: Dec-2012
Publisher: NISCAIR-CSIR, India
Abstract: The influence of high speed draw frame and its preparatory process variables on the performance potential of viscose ring and MJS yarns has been studied. The data indicate marked differences in the performance of the yarns produced with different card drafts and the yarns made with high card draft display poor structural integrity, low abrasion resistance and more hairiness than the yarns spun under identical conditions but with lower card draft. Increasing second nozzle pressure greatly enhances structural integrity, compressional resilience and abrasion resistance, but reduces compressional energy and hairiness. The magnitude of change in these characteristics, however, is highly dependent on the yarn linear density and card draft. High draw frame speed is imperative for air- jet spinning if adequate wrapper fibres are to be produced, and the best one will, in practice, depend on the spinning parameters used. The behaviour of MJS yarns is noticeably better in many respects.
Page(s): 337-342
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Source:IJFTR Vol.37(4) [December 2012]

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