PROBLEM TO BE SOLVED: To improve flexibility at drying without damaging rinsing performances.SOLUTION: The method for producing a vesicle composition comprises: a step (S11 to 12) of dissolving an oil phase including (A) a 14-24C linear or branched fatty acid or a mixture thereof, and (B) a tertiary amine compound at a temperature higher than the melting point of the oil phase and a step (S13) of adding a first aqueous phase to the dissolved oil phase, to cause phase-conversion emulsification. When both the oil phase and the first aqueous phase do not include 14-24C branched hydrocarbon, further conducting S12 using an oil phase containing (D) a 1-8C organic acid, and conducting S13 by incorporating a component (C) of a neutral amino acid in an amount of 1-15 times with respect to the component (A) to at least one of the oil phase and the first aqueous phase.COPYRIGHT: (C)2013,JPO&INPIT【課題】すすぎ性能を損ねることなく、乾燥時の柔軟性を向上させる。【解決手段】本発明に係るベシクル組成物の製造方法は、(A)炭素数14~24の直鎖又は分岐脂肪酸、及びこれらの混合物、並びに(B)第三級アミン化合物を含有する油相を当該油相の融点以上の温度で溶解させる工程と(S11~12)、溶解した前記油相に第一の水相を添加して、転相乳化する工程と(S13)を含む。油相及び第一の水相がいずれも炭素数14~24の分岐脂肪酸を含まないとき、さらに(D)炭素数1~8の有機酸を含有させた油相を用いてS12を実行し、油相又は第一の水相の少なくとも一方に、成分(A)に対し、モル比で1~15倍量の成分(C)中性アミノ酸を含有させて、S13を実行する。【選択図】図1
