Abstract:

In order to find out the difference of test stability and the relationship between the test results of bending behavior defined by different apparatus, FAST-2 bending instrument and the automatic fabric stiffness tester were chosen for comparison. Fifteen fabrics including cotton, silk and wool fabrics were selected and the bending properties in 0°, 45°, 90°and 135° were tested. The coefficient of variation of bending rigidity was calculated. Then the data were processed with statistical analysis. It was found that the test stability of stiffness tester was better than FAST-2 bending instrument for all three types of fabric, the degrees of difference from highest to lowest is silk, wool and cotton fabrics. The stabilities of wool fabric tested by two apparatus were both best among three types of fabric. The bending rigidity tested by two apparatus had a strong correlation. Finally, the causes of test error of two apparatus were analyzed and suggestions were put forward to reduce the error.

Key words: bending property, bending rigidity, error analysis