Abstract
Softness is an essential key in designing, processing and using a lot of textile products. This paper is to approach fabric softness based on an experimental model of determining drape coefficient (i.e., a ratio of projected area of fabric sample to its undraped area) through analysis of digital images obtained from pixel histogram on a graphic software (PTS). Such investigations help to not only quantitatively evaluate but also significantly enhance accuracy for measurements of fabric softness owing to advances in digital image processing technology. Moreover, as comparing to previously conventional methods of calculating projected area such as tracing paper and edge contour, this model presented many advantages, especially time saving. Particularly, the results of drape coefficient obtained from cotton (CT) and polyester (PE) fabrics measured by this model clarified the affected factors on structural characteristics for both textile fiber and textile fabric. The experimental measurements of crease recovery and bending angle on textile woven fabrics were conducted to give additional affirmation about drape coefficient for the model with high reliability and practicality.
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