A simple device for measuring stress relaxation of fabrics in bending is described. It may be used to obtain the viscoelastic and frictional components V and F, which have been shown to determine the recovery of fabrics from bending deformations. A test procedure of relevance to the practical wrinkling situation is suggested and involves the measurement of stress relaxation during a chance in relative humidity. A series of fabrics subjected to this test display a wide range of V and F values exhibiting low coefficients of variation between readings. The instrument should prove useful for analytical or routine assessment of the wrinkling behavior of fabrics.
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