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Indian Journal of Fibre & Textile Research (IJFTR) >
IJFTR Vol.37 [2012] >
IJFTR Vol.37(1) [March 2012] >
| Title: | Structural and characteristic variations in 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
Ring-Spun Yarn
Second Nozzle Pressure
Wrapper Fibres |
| Issue Date: | Mar-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The influence of high draw frame speed and its preparatory on the structure
and properties of viscose ring- and air-jet spun yarns has been studied. The
data indicate insignificant differences in the tensile and regularity
characteristics of the yarns produced with different card drafts and the yarns
made with high draw frame speed display higher strength, higher breaking
extension and better regularity than the yarns made with lower draw frame speed.
Furthermore, a lower second nozzle pressure is needed to reduce rigidity of
air-jet yarns to acceptable limits. When compared with ring-spun yarns, air-jet
yarns have significantly smaller helix angle, but display higher packing
density. Of the various process variables, card draft and second nozzle
pressure markedly affect mean fibre extent, helix angle and packing density,
whereas draw frame speed affects each of the parameters studied in a
non-distinguishable manner. |
| Page(s): | 27-33 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Source: | IJFTR Vol.37(1) [March 2012]
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