Method of Sensory Test for ‘Blueness’ and ‘Whiteness’ of Tatami Facing Color Tone

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  • 「青味」および「白味」程度によるイグサ畳表色調の官能評価と色調測定値の比較および本法の識別精度の検討
  • アオミ オヨビ シロミ テイド ニ ヨル イグサ タタミオモテ シキチョウ ノ カンノウ ヒョウカ ト シキチョウ ソクテイチ ノ ヒカク オヨビ ホンポウ ノ シキベツ セイド ノ ケントウ

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Abstract

We invented a method expressing the degree of ‘Blueness’ and ‘Whiteness’ in color tone of tatami facing, and inspected the validity of the evaluation method. The values of ‘Blueness’ and ‘Whiteness’ evaluated by a sensory test were highly and negatively correlated with a spectrophotometer, L* and a*. Sample differences of the values evaluated by each panel members were significant, but the significant differences were observed among the values evaluated by each panel member and among repetitions of evaluation. Six out of nine panel members could detect color difference of tatami facing significantly at less than a 5% level. It was evident that the values evaluated by most of the panel members were parallel to the average of the values evaluated by all panel members. Therefore, it is accepted that sensory evaluation is useful for discrimination of the color tone of tatami facing as a whole.

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