This paper describes the near-infrared spectral image measurement system for water transferences of woven fabrics. The system consists of a pair of near-infrared light source, a series of optical apparatus, a near infrared camera, and an image processor. This paper also describes that the developed measuring system is adequate for testing the time-dependent water transferences of the materials by using the model samples and several woven fabrics. It could be expected that the sensed information obtained by the spectral image could control the quality of the water transferences more precisely and effectively than the conventional test methods.

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A sitting comfort of six automotive seats, whose covering fabric and cushion pad were changed, and shape and structure of seats were the same, was evaluated by only tactile sensation while sitting on these seats. The adjectives used for the sensory evaluation of seat comfort by the human tactile sensation were examined by the factor analysis. As the result of factor analysis, the sitting comfort of driver's seats was evaluated by two adjectives “soft” and “sliding”. From the correlations among physical properties of fabrics and pad, the pressure distribution and sensory evaluations for seat, it is found that the “soft” feeling has a correlation with the contact area and pressure at buttocks and the physical property of pad, and that the “sliding” feeling has a correlation with the friction coefficient of covering fabric.

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