PROBLEM TO BE SOLVED: To provide a method for producing a liquid detergent composition which is excellent in productivity, and can neutralize high concentration fatty acids in a short time, in production of a liquid detergent composition mainly comprising higher fatty acid salts and giving rich and creamy foam.SOLUTION: A method for producing a liquid detergent composition containing 25-40 mass% higher fatty acid salts in total includes: a step (1) of neutralizing and dissolving higher fatty acids having a melting point of 35°C or lower, in an aqueous alkaline solution at a temperature higher than the melting points of the higher fatty acids and a step (2) of neutralizing and dissolving higher fatty acids having melting points exceeding 35°C, in the solution obtained in the step (1) at 80-85°C.COPYRIGHT: (C)2013,JPO&INPIT【課題】高級脂肪酸塩を主成分とし、豊かでクリーミーな泡を与える液体洗浄剤組成物の製造において、高濃度の脂肪酸を短時間で中和することができる、生産性に優れた液体洗浄剤組成物の製造方法を提供する。【解決手段】融点が35℃以下の高級脂肪酸を、前記脂肪酸の融点以上の温度で、アルカリ水溶液中で中和して溶解させる工程(1)、及び融点が35℃超の高級脂肪酸を、80~85℃で、工程(1)で得られた溶解液中で中和して溶解させる工程(2)を含む、高級脂肪酸塩を合計で25~40質量%含有する液体洗浄剤組成物の製造方法。【選択図】なし
