Changes in fabric dimensions (length, width, and thickness) at the centre of a strip were measured both in continuous extension and in cycling tests. Values of Poisson's ratio, elastic recovery, and fabric density were calculated. The effect of pre-stretch on fabric properties was studied. The effects of shrinkage were investigated by examining the properties of fabrics produced from rayon blended with varying amounts of a polyester fibre that shrank in boiling water. Shrinkage caused considerable consolidation of fabrics. The effects of combining a woven base with a needled structure were studied on three laboratory-produced fabrics and several commercial samples.
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Hearle et al. (1968) studied this question.
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