Journal of the Korean Home Economics Association 1998;36(1):1-11.
폐유를 이용한 재생비누의 특성 및 피부 자극도에 대한 연구
하금1, 이혜자1, 유혜자2
한국교원대학교 대학원 가정교육과1, 서원대학교 의류직물학과2
A Study on the Property and the Skin Irritability of the Reclaimed Soap
하금1, 이혜자1, 유혜자2
ABSTRACT
The purpose of this study is to find troubles in producing and using the reclaimed soaps to get the solutions of their troubles. Five kinds of reclaimed soaps were taken from religious or civic organizations and nine kinds of soaps were made by adding sodium hydroxide of different concentrations to the used vegetable oil in our laboratory. Washing efficiency, pH test, BOD, and skin irritability of the reclaimed of manufactured soaps were examined. The washing efficiency of the manufactured soaps were ±80%. The percent of free-alkali tended to increase as the amount of NaOH increased. The skinirritability was proportional to the amount of NaOH added. To make the reclaimed soap, the best percent of NaHO to used oil is 17% or 18% and this ratio(17%∼18%) should be kept. Manufactured soaps by this ratio have good apperance condition and washing efficiency. And also they have low skin irritability and free-alkali. This study has the limitations that the skin irritability test can have individual and the collected soaps couldn't represent all kinds of recaimed soap.
PDF Links
Full text via DOI 
Download Citation 
Supplement 
