Near infrared spectral imaging for water absorbency of woven fabrics

This paper describes the near infrared spectral image measurement system for water absorbency of woven fabrics. This system consists of a pair of near infrared light sources, 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 absorbency 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 absorbency more precisely and effectively than the conventional test methods.