エイジング時の湿度が被服に付着した油脂汚れの自動酸化ならびに洗浄性に及ぼす影響

概要

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The effects of humidity during aging on autoxidation and detergency of sebum on clothes were studied. Refined lard was used as a test medel of sebum, and cotton and polyester fabrics were used as test fabrics. Test fabrics soiled with lard were hung for a fixed period in an incubator where temperature and relative humidity were controlled at 40℃ and 50 or 90%. Autoxidation of lard extracted from fabrics was estimated from the peroxide value (PV) and the carbonyl value (CV). The results were as follows: 1) PV and CV of lard increased by aging. The rate of increase on polyester was higher than that on cotton. 2) The effect of humidity at 90% RH on autoxidation of lard on cotton was greater than that at 50% RH, but there was no difference on polyester. 3) While about 30% of the lard adhered to cotton was removed by washing before aging, the removal rate of lard decreased to 0% after a 5-day aging period at 90% RH or a 20-day aging period at 50% RH. In the case of polyester, the removal rate was very low, irrespective of aging periods and humidity.
社団法人日本家政学会の論文
1997-09-15