Evaluation of domestic washing in Japan using life cycle assessment (LCA)

摘要: Changing lifestyles and family structures have changed consumer domestic washing behaviour in our country, with growing use of washer-dryers changing detergent preferences, including concentrated detergents. In particular, there has also been an increase the number combined washer-dryers, which both save space reduce housework burden. However, power consumption for drying is extremely high compared to that washing. This study reveals performance sweat-absorbent, quick-drying clothing washing, uses life cycle assessment method evaluate heat-pump conventional washer-dryer. this study, it was assumed used on 99 days per year, based mean year rainfall Tokyo. Both types washer-dryer showed CO2eq emission levels usage, highest during drying. Compared washer-dryer, able emissions significantly through savings less water as well, although did require larger amounts detergent. largest portion attributable process, enabled these be reduced by approximately 10%. The residual moisture content after spin-drying, affects amount generated at stage, depended spin-drying times proportion polyester fibres clothing.