To obtain the subject composition having high bleaching and deterging force, especially to hydrophobic stain and free from decolorizing of dye by using a peroxo acid bleaching agent precursor having an ester group.
This composition preferably comprises (A) an inorganic peroxide capable of generating hydrogen peroxide in an aqueous solution and (B) a peroxo acid bleaching agent precursor having an ester group, in which total content of a fatty acid and hydroxy compound remaining in the component B is ≤5wt.% based on the component B, having ≤5g/100g solubility to water at pH2.5 at 20°C and being a compound represented by the formula [R is a 5-19C alkyl or alkenyl; Z is SO3H or COOM (M is H or an organic or inorganic cation)], (C) either one kind of surfactant among an anionic surfactant, a non- ionic surfactant, a cationic surfactant and an amphoteric surfactant and (D) a metal ion sealing agent.
YAMAGUCHI YUKIYOSHI
AOYANAGI MUNEO
