Evaluation of the Light Deterioration in Hair for Quality Examination of Mink Fur Products

概要

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Light deterioration of hair in mink fur was evaluated by sensory evaluation, color difference measurement, scanning electron microscope (SEM) observation, fourier transform infrared (FTIR) measurement and chemical analysis of extracted protein, aiming to have an insight into the practical aspect of quality examination by summarizing these evaluation. As a result of the sensory test on the deterioration of hair in irradiated mink fur, deterioration in smoothness and straightness of guard hair was recognized within the irradiation time of 96h. In instrumental examination, a significant deterioration was detected in color difference, SEM picture, FTIR spectrum and analyses of extracted proteins within the irradiation time of 96h. The degree of deterioration detected was generally proportional to the irradiation time. It was recognized that examination items adopted in this study were meaningful for the evaluation of light deterioration of hair in mink fur. Furthermore, the introduction of FTIR measurement and chemical analyses of extracted proteins enabled to detect such a light deterioration that cant be detected by sensory test.