学術雑誌論文 Verification of the effect of yarn torsional rigidity on fabric bending rigidity in any direction

Peiffer, Julie  ,  Kim, KyoungOk  ,  Takatera, Masayuki

87 ( 4 )  , pp.424 - 432 , 2017-03-01 , SAGE PUBLICATIONS LTD
NII書誌ID(NCID):AA00862236
内容記述
The effect of yarn torsional rigidity was verified on the Cooper model for fabric bending rigidity in any direction. We made five cotton fabrics with different weft densities and prepared three commercial fabrics as experimental samples. The torsional rigidity of yarn from the bobbin and that of yarn directly extracted from fabric were measured with a yarn torsional tester. The bending rigidity of yarn from the bobbin was measured using the same pure bending tester as used in fabric bending testing. The bending rigidity of thin fabric was calculated using torsional rigidities of yarns extracted from the fabric and showed better agreement with the experimental values than that calculated using the torsional rigidity of yarn from the bobbin. Indeed, measurements showed that the torsional rigidity of yarn from the bobbin was appreciably higher than the torsional rigidity of yarn from the fabric. This is due to the crimp in the yarn. The fabric bending rigidity can be predicted using the Cooper model with torsional rigidities of yarns extracted from the fabric.
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