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KANSEI evaluation of wood and engineered wood from the viewpoint of visual sense and sense of smell

从视觉和嗅觉角度对木材和工程木材进行感性评价

基本信息

批准号：
10835005
负责人：
TERAUCHI Fumio
金额：
$ 2.24万
依托单位：
Chiba University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

项目摘要

The purpose of this paper is to evaluate the KANSEI information of wood by the sense of visual and smell. The evaluation was carried out from desirable and not desirable viewpoints. In the case of former, the changes of physiological and psychological reactions of human were investigated using electroencephalogram (EEG) and profile of mood state (POMS) between in the presence and absence of coniferous wood odor. In addition, the effect of the material information on the odor evaluation was discussed by the sensory test of those odors and analytical hierarchy process. In the case of the latter, the method to reduce formaldehyde emitted from plywood was discussed. To reduce formaldehyde emission from plywood, five kinds of chemical substance : urea, phenol, ammonia, catechin and tannin, were impregnated in plywood, respectively. The effects of those chemical-treatments were clarified by two indexes ; formaldehyde concentrations and evaluated values of sensory test of those headspace gas. Obtained results were summarized as follows.(1) In the presence of wood odors, nervous fatigue and feeling of strain tended to decrease.(2) EEG magnitude spectra of the alpha wave was not changed significantly in the presence of wood odors.(3) The evaluation of the wood odors tended to increase with visual and/or material information.(4) It was suggested that not only tone of color and grain of wood but also material name affect on the evaluation of the wood odor.(5) By both urea and ammonia-treatment, formaldehyde concentration and odors from those plywoods were much lower than those of untreatment one.

本文的目的是通过视觉和嗅觉来评价木材的感性信息。评价是从可取和不可取的观点进行的。在前者的情况下，人的生理和心理反应的变化进行了研究，在存在和不存在的针叶木材气味的脑电图（EEG）和情绪状态（POMS）的轮廓。此外，通过对这些气味的感官测试和层次分析法，讨论了材料信息对气味评价的影响。在后者的情况下，探讨了降低胶合板甲醛释放量的方法。为降低胶合板甲醛释放量，分别采用尿素、苯酚、氨水、儿茶素和单宁5种化学物质浸渍胶合板。通过甲醛浓度和顶空气体感官评价值两个指标来考察化学处理对果蔬保鲜效果的影响。所得结果总结如下。(1)在木材气味的存在下，神经疲劳和紧张感倾向于减少。(2)EEG幅度谱的α波没有改变显着的木材气味的存在下。(3)木材气味的评价倾向于增加视觉和/或材料信息。(4)结果表明，木材气味的评价不仅受木材的色调和纹理的影响，而且受材料名称的影响。(5)经尿素和氨处理后，杉木木材的甲醛浓度和气味均比未处理的木材低得多。