Through mechanical agitationstirringsqeezingrubbingbeatingkneading some grease is dislodgedlifted of the surface of the garment It is immediately surrounded by more soap molecules It float and spread in the water as tiny droplets that scatter light in form of emulsion making the water cloudy and shinny It is removed from the garment by rinsing with fresh water The repulsion of the soap head prevent ensure the droplets do not mix Once removed the dirt molecules cannot be redeposited back because it is surrounded by soap molecules