| 摘要 |
A bleaching and laundering composition is provided comprising monoperoxyphthalic acid and/or a water-soluble salt thereof (e.g. the magnesium salt), a chelating agent capable of forming a substantially water-soluble complex with metal ion in aqueous solution, a peroxygen compound and an activator for said peroxygen compound comprising phthalic anhydride. A method of bleaching and laundering soiled and/or stained materials with the aforesaid bleaching composition is also described. Preferred chelating agents include diethylene triamine pentamethylenephosphonic acid and/or its water soluble salts, and ethylene diamine tetraacetic acid and/or its water soluble salts. |
