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Investigation on the Ratio of Bending Rigidity of Fabric to Yarn for Low Twist Filament Yarn

Research and development

Authors:

• Ghane Mohammad
  Iran, Isfahan, Isfahan University of Technology, Department of Textile Engineering
• Sheikhzadeh M. (j/w)
• Khaburi S. (j/w)
• Ghaeli I. (j/w)

Full text

Abstract: The ratio of bending rigidity of fabric to yarn in the case of low twist filament weft yarn was studied. Samples of fabrics with different weft densities were prepared; their other parameters were identical. After steam setting treatment, the bending rigidity of the fabrics was measured. The results showed that the rigidity of the fabric per thread in the weft direction decreases as the weft density increases. However, the theoretical equations suggest an inverse trend. To explain the difference, the thickness of the fabric was considered. It was shown that the reduction in fabric bending rigidity was due to the decrease in fabric thickness. The fixed end beam theory for the deflection of weft yarns as well as the flattening effect of low twist filament weft yarns were used to explain the reduction in fabric thickness when the weft densities increase. It was concluded that in the case of low twist filament weft yarn, Leaf’s theoretical equations could not be used to predict the ratio of the bending rigidity of fabric to yarn.

Tags:

low twist filaments, bending rigidity, weft density, flattening effect

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Published on issue no 3 (74) / 2009, pages 51–53.

"Fibres & Textiles in Eastern Europe" is inserted on the "ISI Master Journal List" of the Institute for Scientific Information, Philadelphia, USA (for the year 2010 has an Impact Factor of 0.629) and is indexed in Research Alert, SCI Expanded (Sci Search and Web of Science), the Materials Science Citation Index, Current Contents/Engineering, Computing & Technology; as well as by the Textile Institute, Manchester, in the Information Service; and in Toga FIZ Technik; Rapra Technology Ltd.; Elsevier Geo Abstracts; Textiles Eastern Europe - World Textile Publications; Applied Mechanics Review; Chemical Abstracts Service; Referativny hurnal; and by the European Textile Network.

The content of "Fibres & Textiles in Eastern Europe" is available by free open access on the website http://www.fibtex.lodz.pl, starting from issue No 3/2002.