繊維学会誌
Online ISSN : 1884-2259
Print ISSN : 0037-9875
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56 巻, 11 号
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  • カラーイメージの定量化の試み
    --- 評価方法の違いによる定量化の差異 ---
    中村 妙子, 星野 裕之, 佐藤 哲也, 梶原 莞爾
    原稿種別: 研究論文
    専門分野: 情報学
    2000 年 56 巻 11 号 p. 508-517
    発行日: 2000年
    公開日: 2001/10/31
    DOIhttps://doi.org/10.2115/fiber.56.508
    ジャーナル フリー
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    In order to investigate the influence of visual assessment method and to derive more practical colour emotion formulae, we newly carried out a visual assessment experiment with seven point method. Twelve colour emotions discussed in this study are the same to those in previous studies, i.e., “Warm-Cool”, “Light-Dark”, “Deep-Pale”, “Heavy-Light”, “Vivid-Sombre”, “Gaudy-Plain”, “Striking-Subdued”, “Dynamic-Passive”, “Distinct-Vague”, “Transparent-Turbid”, “Soft-Hard” and “Strong-Weak”. We categorised the twelve colour emotions into three groups through the relationship to attributes of colour system, and investigated the differences between visual results assessed by the two methods. The characteristics of the visual results by seven point method are roughly similar to those by two point method. With the comparison between visual results by seven and two point methods, we found some differences in the correlations of the twelve colour emotions. The correlation between visual results of colour emotions, which are contributed by lightness and colour depth, is high. But, the correlation between visual results of colour emotions, which are contributed by hue and chroma, is not so high. We also tried to derive colour emotion formulae corresponding to the visual results assessed by seven point method. We found out that all of the colour emotions can numerically be expressed with the ellipsoid-type formula. The formulae can more practically assess the magnitude of each colour emotion. This suggests it is possible to express the magnitude various human colour emotions as a distance in a colour space.
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  • 視覚的情報を用いた糸の見掛け太さの計測
    太田 健一, 畑 豊, 太田 知佳子, 粕谷 明
    原稿種別: 研究論文
    専門分野: 情報学
    2000 年 56 巻 11 号 p. 518-523
    発行日: 2000年
    公開日: 2001/10/31
    DOIhttps://doi.org/10.2115/fiber.56.518
    ジャーナル フリー
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    The diameter of the yarn has been defined in the relationship between length and weight of the yarn. However, the diameter of the yarn is different by the convergence condition of the fiber that constitutes the yarn. Then, the new filter is made for the purpose of measuring the appearance diameter of the yarn. In this study, weighting filter to the differential image got by dividing the differential histogram values by the lightness histogram values was made. The measurement method of the appearance diameter of the yarn using this filter was proposed.
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  • Bellows action(ふいご作用)の着衣の放熱性能への影響 第1報 衣服下間隙寸法と通気性の効果
    薩本 弥生, 王 海華, 長谷部 ヤエ, 石川 欣造, 竹内 正顯
    原稿種別: 研究論文
    専門分野: 情報学
    2000 年 56 巻 11 号 p. 524-536
    発行日: 2000年
    公開日: 2001/10/31
    DOIhttps://doi.org/10.2115/fiber.56.524
    ジャーナル フリー
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    Bellows action is one of effective mechanisms to exchange air and heat inside clothing. To study the effect of bellows action on heat transfer in clothing system, experiments were done by using a simulated skin (hot plate) and a clothing material plate which was shuttled up and down over a hot plate to simulate a bellows action of clothing. The effect of bellows action on heat transfer has been expected being affected by both air permeability of clothing material and the size of air space in clothing. Unexpectedly, the effect of air permeability was small. The main route of heat transfer was the opening of clothing. On the other hand, the effect of size of air space was remarkable. When the size of air space “s” was set from 5mm to 10mm, the effect of bellows action on heat transfer in clothing was largest. Contrarily, when “s” was 20mm, bellows action did not always increase heat transfer. A simple theoretical analysis was made to explain the heat transfer phenomena in clothing during bellows action. It was found that when a material plate was shuttled up, a pressure difference in the air space of clothing became minus that caused penetration flow from environment and when a plate was shuttled down, a pressure difference became plus thus a air in the space blew away to environment. The nearer the distance from opening was, the larger the magnitude of velocity and thus effect of bellows action was.
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  • カジュアルソックスの履き心地に及ぼす表面色の影響
    西松 豊典, 花之内 智彦, 鳥羽 栄治, 庄 健二, 近藤 幹也, 松岡 敏生
    原稿種別: 研究論文
    専門分野: 情報学
    2000 年 56 巻 11 号 p. 537-543
    発行日: 2000年
    公開日: 2001/10/31
    DOIhttps://doi.org/10.2115/fiber.56.537
    ジャーナル フリー
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    This is a paper concerned with investigating how the surface color of socks influences the wearing comfort of casual socks. The wearing comfort of socks, whose colors were changed, and material, yarn count and weave of socks were the same, was evaluated by the visual sensation, the tactual sensation, or the visual and tactual sensations of consumers. The adjectives used for the sensory evaluation of wearing comfort were examined by factor analysis. From the result of factor analysis, the wearing comfort of socks by the visual sensation was evaluated by three common factors “easy to wear”, “heavy and thick” and “showy”, and that by the visual and tactual sensations was evaluated by three common factors “dry”, “easy to wear”, and “good fit”. And the relationship between the sensory values and the measured L*, a*, b* and chroma values was discussed by correlation analysis. As the results, L* value has a positive correlation with adjectives “light”, “thin” and “dry”, b* value has a negative correlation with “good fit”, chroma value has a positive correlation with “showy”.
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  • 温度勾配条件下の布の透湿
    金綱 久明, 竹中 知子
    原稿種別: 研究論文
    専門分野: 情報学
    2000 年 56 巻 11 号 p. 544-549
    発行日: 2000年
    公開日: 2001/10/31
    DOIhttps://doi.org/10.2115/fiber.56.544
    ジャーナル フリー
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    A moisture permeability through ten-layered fabrics under temperature gradient conditions was compared with a moisture permeability under an isothermal condition. In the case of the temperature gradient condition, a temperature of vessel cup of the evaporation technique was holded at 32°C and the experiments were performed at various environmental humidity in an temperature below 32°C. In the case of an isothermal condition, the temperature of the vessel cup and an environmental temperature were the same temperature. A moisture permeability, a humidity on the inside surface and the outside surface of ten-layered fabrics and a diffusion coefficient of a moisture vapour in fabrics were compared with the temperature gradient and the isothermal conditions.
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