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Sodium n-Alkylsulfate의 Alkyl group이 鎖長과 洗滌性 : 洗滌溫度 變化를 中心으로 the effects of washing temperature
丁慶明,柳孝仙,金聲連 한국의류학회 1983 한국의류학회지 Vol.7 No.2
There have been two supposition that the decrement of fatty soil removal at high temperature was caused by surfactants and by the structure of fibers and Fabrics. To study the effect of temperature on the removal of fatty soil, the following variables were selected: Sodium n-alkylsulfates having various chain lengths of alkyl groups as surfactants, cotton and cuprammonium rayon as cellulose fibers having different fiber structure, and two types of soil having different melting points. Experiment was carried out with radiotagged soil and detergency was estimated by liquid scintillation counting. The results were as following: the detergency of tripalmitin on cotton was increased with elevating temperature up to 60∼70℃ and decreased above 70℃ regardless of alkyl chain length of sodium n-alkylsulfates. In distilled water without surfactant, the detergency of tripalmitin on cotton was also decreased above 70℃, but the detergency of tripalmitin on cuprammonium rayon was not decreased above 70℃, effects seemed to be caused by fiber structure. Though the melting point of mixture of tripalmitin and dodecane was lower than that of tripalmitin, the optimum and decrement temperature of detergency were not altered. Finally the results of this study were shown that the surfactant and characteristics of soil did not affect on the mode of detergency vs temperature, but the fiber structure.