著者

中谷 博美 後藤 景子

出版者

一般社団法人 日本家政学会

雑誌

日本家政学会誌 (ISSN:09135227)

巻号頁・発行日

vol.64, no.10, pp.637-643, 2013 (Released:2014-10-23)

参考文献数

23

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Detergency of textiles by low-water laundering was assessed with a drum-type washing machine called a Wascator. An artificially soiled cotton fabric (Sentaku Kagaku Kyoukai) and three mechanical action fabrics (WAT cloth, Poka-Dot®306 and MA test piece) were attached to cotton ( 920×920 mm2 ) and polyester ( 200×200 mm2 ) load ballasts and then washed in aqueous alkaline detergent solution with a different bath ratio. The washing procedures used were normal, gentle and hand wash in accordance with ISO 6330. At the extremely low bath ratio of 1:3, both detergency, D, and the mechanical action value, ΔL*, decreased for all washing procedures. The magnitude and the deviation of D and ΔL* were dependent on the load ballasts used, indicating that soil removal was prevented and that uneven washing was promoted for large clothes. The relation between D and ΔL* for all experimental data was plotted on almost the same line in the high ΔL* region. In the low ΔL* region, the relation was dependent on the bath ratio, i.e. detergent bulk concentration. For low-water laundering, it was suggested that the detergency performance decreased as a result of the reductions of the mechanical action and detergent bulk concentration.

著者

後藤 景子 中谷 博美 徳安 恵理菜

出版者

社団法人 繊維学会

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.70, no.11, pp.273-280, 2014-11-10 (Released:2014-11-10)

被引用文献数

4 4

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In order to save resources and energy in textile washing, ultrasound was applied as a mechanical action for soil removal. Plain-woven polyester, cotton and polyester/cotton (65/35) fabrics were soiled with oleic acid, carbon black or oleic acid/carbon black mixture as a model soil. The artificially soiled fabrics were washed in an aqueous anionic surfactant solution with applying 38 kHz ultrasound. The detergency determined by the surface reflectance method rapidly increased with time and attained almost constant within a few minutes. The detergency after 1 min washing was found to increase with increasing electric power consumption of ultrasound. The washing tests were repeated ten times in the same wash bath to save water and detergent and the obtained detergency did not change significantly. The detergency of oleic acid and oleic acid/carbon black mixture after washing with 420W ultrasound for 1 min was comparable to that with Wascator, a horizontal axis drum type washer. Furthermore, the mechanical action values obtained for ultrasonic washing were much smaller than those for Wascator, indicating that the fabric damage can be prevented by applying ultrasound to textile washing.

著者

後藤 景子

出版者

社団法人 繊維学会

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.73, no.8, pp.P-297, 2017-08-10 (Released:2017-08-10)

著者

後藤 景子 中谷 博美

出版者

一般社団法人 日本家政学会

雑誌

日本家政学会誌 (ISSN:09135227)

巻号頁・発行日

vol.62, no.3, pp.173-178, 2011-03-15 (Released:2013-08-01)

参考文献数

17

被引用文献数

1

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In order to investigate the effect of bath ratio on textile detergency, a washing test was carried out in aqueous detergent solutions using artificially soiled fabrics commercially available and those prepared with three model soils. The detergency evaluated by the surface reflectance method was found to decrease with a decreasing bath ratio. The reduction in detergency under a low bath ratio condition was compensated by an increase in detergent concentration and temperature of the wash bath.In terms of mechanical actions for soil removal, shaking and stirring were found to be effective under a high bath ratio condition, whereas ultrasonicwaves worked well under a low bath ratio condition. In most washing conditions, soil redeposition and fabric damage were not significantly observed. The experimental results show that detergency performance in water-saving textile washing can be maintained under adequate washing conditions with respect to detergent concentration, temperature and mechanical action.

著者

中谷 博美 後藤 景子

出版者

The Japan Society of Home Economics

雑誌

日本家政学会誌 (ISSN:09135227)

巻号頁・発行日

vol.64, no.10, pp.637-643, 2013

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Detergency of textiles by low-water laundering was assessed with a drum-type washing machine called a Wascator. An artificially soiled cotton fabric (Sentaku Kagaku Kyoukai) and three mechanical action fabrics (WAT cloth, Poka-Dot®306 and MA test piece) were attached to cotton ( 920×920 mm² ) and polyester ( 200×200 mm² ) load ballasts and then washed in aqueous alkaline detergent solution with a different bath ratio. The washing procedures used were normal, gentle and hand wash in accordance with ISO 6330. At the extremely low bath ratio of 1:3, both detergency, D, and the mechanical action value, ΔL^*, decreased for all washing procedures. The magnitude and the deviation of D and ΔL^* were dependent on the load ballasts used, indicating that soil removal was prevented and that uneven washing was promoted for large clothes. The relation between D and ΔL^* for all experimental data was plotted on almost the same line in the high ΔL^* region. In the low ΔL^* region, the relation was dependent on the bath ratio, i.e. detergent bulk concentration. For low-water laundering, it was suggested that the detergency performance decreased as a result of the reductions of the mechanical action and detergent bulk concentration.

著者

櫻井 彩乃 菅原 ますみ 後藤 景子 渡辺 基子 岡村 仁 北村 裕梨 中井 克也 飯島 耕太郎 岡崎 みさと 魚森 俊喬 崔 賢美 村上 郁 櫻井 晃洋 齊藤 光江 新井 正美

出版者

一般社団法人 日本遺伝性腫瘍学会

雑誌

遺伝性腫瘍 (ISSN:24356808)

巻号頁・発行日

vol.23, no.3, pp.74-83, 2023-12-15 (Released:2023-12-15)

参考文献数

20

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BRCA1/2遺伝子検査が保険収載後に,本検査受検を考慮した乳癌患者の実態調査を行った.順天堂大学医学部附属順天堂医院乳腺センターにて,保険適用でのBRCA1/2遺伝子検査を提案された外来通院中の乳癌患者31名(受検者29名,非受検者2名)を対象に,検査時と結果開示後に調査を実施した.BRCA1/2遺伝子検査の保険収載は受検を明らかに促進していた.同胞や子どもを心配し受検をした対象者がもっとも多く,受検者の90%以上が血縁者への情報伝達を予定していた.血縁者への情報提供やキャリア診断の遺伝カウンセリング体制も整備する必要性が示された.また病的バリアントが検出されなかった約半数の対象者でネガティブな情緒の変化である「総合的気分状態」の上昇がみられた.乳癌診療や遺伝カウンセリングにおいては,病的バリアント非保持者でも心理支援を考慮すべき対象者がいることが示された.

著者

山口 庸子 片山 倫子 生野 晴美 尾畑 納子 後藤 景子 大矢 勝 板垣 昌子 多賀谷 久子

出版者

共立女子短期大学

雑誌

基盤研究(A)

巻号頁・発行日

2007

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環境負荷の少ない家庭洗濯の提案(環境調和型家庭洗濯)に向けて、洗剤、洗浄用水、汚れ、機械力、機械乾燥、洗濯行動の見直しを行った。その結果、毒性を抑えた界面活性剤の組合せ、酵素配合による界面活性剤使用量の削減、汎用的な洗浄力および機械力の評価方法の提案、地域特有の衣類乾燥の現状と環境負荷を抑えた乾燥法を言及した。更に、教員向け情報支援として、身近な体験的ツールに加えてWeb情報等ペーパーレスを望む意向を明らかにした。