The effect of a new setting agent for wool

Pleated wool fabrics were prepared by the treatment with ethylenediamine (EDA) at 90°C for 30 min. The degree of set, tensile property and dyeing of the treated fabrics have been discussed in relation to the concentration of EDA in the treatment system. No significant decreases in tensile strength and elongation, and great increases of exhaustion of synthetic and natural dyes were observed. Pleat and flat set were successfully attained in a wide range of the concentration of EDA. Excellent dyeability and setability of the fabrics obtained were considered to be associated with the existence of new crosslink, β-N-(2-aminoethyl)alanino-β-aminoalanine and the pendant group, β-N-(2-aminoethyl) aminoalanine produced by the reaction of EDA with dehydroalanine intermediate. © 2009 The Korean Fiber Society and Springer-Verlag Berlin Heidelberg GmbH

Comparison of woolen eco-friendly anti-felting treatment with classic anti-felting procedures

The development of an eco-friendly anti-felting treatment based on a calcium hypochlorite and hydrogen peroxide (Ca(ClO)2 + H2O2) system, the so-called MEFT (Mori Eco-friendly Treatment) process, is reported in this paper. This treatment is not new in the processing of wool; however, controlling the temperature and time gives rise to further effectiveness of the system, resulting in excellent anti-felting property, fabric handle, color intensity and whiteness. The relationship of the anti-felting and scale structure of Merino and Corriedale wool fabrics treated with the present system is discussed. Although the anti-felting effect was slightly lower than that of the chlorination treatment based on dichloroisocyanuric acid and NARS (improved new method of the Agricultural Research Service) treatment, the excellent handle characteristics of wool fabrics were retained. The anti-felting property, based on various other oxidative and non-oxidative treatments, was compared and the rank was obtained approximately in the following order: chlorination > NARS = MEFT > plasma > Caroat. © The Author(s) 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav

Relationship between various chemical treatments on the mechanical, anti-felting and dyeing properties of wool

Wool fibers have higher elasticity than synthetic fibers, and are superior in the properties of vapor absorption and desorption. However, the only fault of wool is its felting propensity during home laundering. Although various anti-felting treatments to reduce the felting property have been developed and used industrially, there are still problems such as environmental issues and changes of fabric handle. These issues were studied in this paper. The effect of DCCA, NaOCl and plasma treatments on anti-felting property, fabric handle, yellowing, color intensity and hydrophilicity were especially investigated. It is concluded that NaOCl method is the best treatment in the points of anti-felting, fabric handle, yellowing and color intensity. © (2012) Trans Tech Publications

絹織物の熱・水分移動特性と快適性との関連

金沢大学教育学部研究課題/領域番号:61780109, 研究期間(年度):1986出典：研究課題「絹織物の熱・水分移動特性と快適性との関連」課題番号61780109（KAKEN：科学研究費助成事業データベース（国立情報学研究所）） （https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-61780109/）を加工して作

Regional microclimate humidity of clothing during light work as a result of the interaction between local sweat production and ventilation

Purpose – The aim of this study is to explore the influence of the clothing ventilation in three body regions on the humidity of the local clothing microclimates under five work-shirts immediately after the onset of sweating in light exercise. Design/methodology/approach – The clothing microclimate ventilations were measured at chest, back and upper arm using a manikin. Separate wear trials were performed to determine the sweat production and the humidity of the clothing microclimate at the same locations as where the ventilation was measured during light exercise. Findings – Every shirt shows the greatest value of ventilation index (VI) for the chest and the smallest one for the upper arm. The values of VI differ remarkably at the chest among the five shirts. Comfort sensation became gradually worse as the time passed after starting exercise. There was no significant difference among the clothing conditions in mean values of rectal temperature, local skin temperatures, microclimate temperatures, microclimate relative humidities and local sweat rates at three regions over 10?min after the onset of sweating. A relationship was observed between the ratio of the mean moisture concentration in the clothing microclimate to the mean sweat rate at the chest and the back and the VI. Originality/value – The results suggest that clothing ventilation should be measured in different body regions in response to sweat rates in corresponding regions

Regional microclimate humidity of clothing during light work as a result of the interaction between local sweat production and ventilation

金沢大学教育学部Purpose - The aim of this study is to explore the influence of the clothing ventilation in three body regions on the humidity of the local clothing microclimates under five work-shirts immediately after the onset of sweating in light exercise. Design/methodology/approach - The clothing microclimate ventilations were measured at chest, back and upper arm using a manikin. Separate wear trials were performed to determine the sweat production and the humidity of the clothing microclimate at the same locations as where the ventilation was measured during light exercise. Findings - Every shirt shows the greatest value of ventilation index (VI) for the chest and the smallest one for the upper arm. The values of VI differ remarkably at the chest among the five shirts. Comfort sensation became gradually worse as the time passed after starting exercise. There was no significant difference among the clothing conditions in mean values of rectal temperature, local skin temperatures, microclimate temperatures, microclimate relative humidities and local sweat rates at three regions over 10 min after the onset of sweating. A relationship was observed between the ratio of the mean moisture concentration in the clothing microclimate to the mean sweat rate at the chest and the back and the VI. Originality/value - The results suggest that clothing ventilation should be measured in different body regions in response to sweat rates in corresponding regions. © Emerald Group Publishing Limited