To let a detergent based on pure soap having no slimy feeling and film residual feeling derived from synthetic surfactants other than pure soap, easy to rinse, having freshness after washing, and capable of being used with cleanliness be used easily, and to provide a soap of which decomposition is proceeded in environment after drainage and which is less in effect on natural environment.SOLUTION: Flowability is stabilized by reducing particle diameter of micelle by blending, stirring and pulverizing while entrainment of air with a mixer having prescribed shear force and rolling force under a specific blend balance of sodium fatty acid soap base material, water, oil and air.SELECTED DRAWING: None【課題】純石鹸以外の合成界面活性剤由来のぬるぬる感、残膜感が伴わず、すすぎが楽で、洗い上りがさっぱりとして、いつも清潔に使用できる純石鹸ベースの洗浄剤を手軽に利用できるようにする。また、排水後に、環境中で分解が進み、自然環境に与える影響は少ない石鹸を提供する。【解決手段】脂肪酸ナトリウム石鹸素地、水、油、空気の特定の配合バランスのもとで、所定の剪断力と回転力を有するミキサーで空気を巻き込みながら混錬、撹拌、粉砕し、ミセルの粒子径を小さくして流動性を安定化させる。【選択図】なし
