In order to investigate the washing effect of alkaline electrolyzed water (SAEW) on three soil components adhering to cotton fabrics, the detergency of oil and protein-based soil components adhering to wet-type artificially soiled fabric washed with SAEW was evaluated by using ATR-FT/IR method. In addition,influence of dilution ratio on detergency of SAEW for soils on clothing was examined by using this method. The detergency of oil- and protein-based soils components at each dilution ratio of SAEW was significantly higher than that of solid particle soil component, suggesting that SAEW is superior to not only the detergency of solid particle soil, but also that of oil- and protein-based soils. The detergency of oil- and protein-based soil components washed with 75-fold diluted SAEW was found to be higher than a commercial liquid detergent (standard usage). From these experiments, it was clarified that the washing using SAEW was not only effective methods of reducing the environmental load and damage to the fabric, but also removing oil- and protein-based soil components adhering to cotton fabrics.
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