Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Electroencephalogram and Subjective Sensibilities of Chamaecyparis obtusa Scent-Infused Knitted Fabrics Based on Color Tone and Fragrance Intensity

편백향 편성물의 향기 강도와 색채 톤에 따른 뇌파 및 주관적 감성

  • 김춘정 (연세대학교 심바이오틱 라이프텍 연구원) ;
  • ;
  • 이은주 (제주대학교 패션의류학과)
  • Received : 2019.02.10
  • Accepted : 2019.04.11
  • Published : 2019.04.30
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Abstract

The purpose of this study is to investigate the differences of EEG and subjective sensibilities of cotton knitted fabrics treated by microencapsules, including Chamaecyparis obtusa essential oil, based on fragrance intensity and color tone. Six specimens were prepared by dyeing a cotton knit in three different greenish-colored tones (strong, pale, and grayish). Next, the cotton knit was treated with microencapsules, thereafter generating two different levels of fragrance intensities using a crockmeter, namely, low intensity by onereciprocal friction and high intensity by ten-reciprocal friction. At low fragrance intensity, the SMR and beta waves increased more in the grayish tone than in the pale and strong tones, and its EEG signals were more activated by the grayish tone in most areas of the brain than by the pale and strong tones. For the subjective sensibilities, at low fragrance intensity, the grayish tone was evaluated as stronger in fragrance than the strong and pale tones. At high fragrance intensity, the alpha and SMR waves increased more in the strong tone than in the pale and grayish tones, and the EEG signals were more activated by the strong tone in most cites of the cerebrum than by the pale and grayish tones. For the subjective sensibilities, at high fragrance intensity, the strong tone was assessed to have a more comfortable and natural fragrance than the pale and grayish tones. For both EEG and subjective sensibility, the fragrance intensity and color tone interacted significantly with each other. Considering psychophysiological aspects, the alpha waves increased in the grayish tone at high fragrance intensity among the cotton knitted fabrics preferred in the subjective evaluation, and the SMR waves increased in the strong tone at high fragrance intensity. Therefore, it is necessary to consider both fragrance intensity and color tone depending on the purpose of product development.

Keywords

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