PROBLEM TO BE SOLVED: To provide a soap composition exhibiting excellent bubbling (foaming property, quick foaming property) and creamy foam quality, being excellent in the moisture-retaining effect giving being moist after use, and being smooth in extrusion in production and being excellent in productivity.SOLUTION: The soap composition contains (A) 0.1 to 20 mass% of a polyalkylene glycol derivative represented by the below formula 1, (B) 40 to 99 mass% of a fatty acid salt, (C) 0.1 to 20 mass% of glycerol, and (D) 0.1 to 20 mass% of water. Z-{O-(EO)a-(BO)k-H}m...(1), wherein: Z is a residue of a water-soluble polyhydric alcohol having 3 to 6 hydroxyl groups from which the hydroxyl groups are removed m is an integer of 3 to 6 EO is an oxyethylene group BO is an oxybutylene group EO and BO bond in a block state a is an average addition molecular number of EO k is an average addition molecular number of BO a is an integer of 5 to 45 k is an integer of 3 to 35 and the mass proportion of EO based on 100 pts.mass of the total amount of EO and BO is 15 to 75 pts.mass.COPYRIGHT: (C)2013,JPO&INPIT【課題】優れた泡立ち(起泡性、速泡性)とクリーミーな泡質で、使用後はしっとりとした保湿効果に優れるとともに、製造時の押し出しがスムーズで生産性に優れた石けん組成物の提供。【解決手段】(A)下記の式1で示されるポリアルキレングリコール誘導体を0.1~20質量%、(B)脂肪酸塩を40~99質量%、(C)グリセリンを0.1~20質量%、(D)水を0.1~20質量%含有する石けん組成物。Z-{O-(EO)a-(BO)k-H}m ・・・(1)(式中、Zは水酸基を3~6個有する水溶性多価アルコールから水酸基を除いた残基、mは3~6の整数、EOはオキシエチレン基、BOはオキシブチレン基を示し、EOとBOはブロック状に結合している。また、aはEOの平均付加モル数、kはBOの平均付加モル数を示し、aは5~45の整数であり、kは3~35の整数である。また、EOとBOの合計量100質量部に対し、EOの質量割合は15~75質量部である。)【選択図】なし
