Activation of bleach precursors with imine quaternary salts

Details Activation of bleach precursors with imine quaternary salts Activation of bleach precursors with imine quaternary salts

C - Chemistry, Metallurgy

11

D

C11D 3/395 (2006.01) C11D 3/386 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2176228

A bleaching composition is described that includes a peroxygen compound as sodium perborate, an oxygen transfer agent in the form of a quaternary imine salt and a bleach precursor. The quaternary imine salt at relatively low concentrations enhances the activity of the precursor. A method for bleaching substrates is also provided, especially a method for cleaning fabrics.

Composition de blanchiment comprenant un composé peroxyde tel que le perborate de sodium, un agent de transfert d'oxygène sous forme de sel quaternaire d'imine et un précurseur d'agent de blanchiment. Lorsque le sel quaternaire d'imine est présent selon des concentrations relativement faibles, il améliore l'activité du précurseur. On a également prévu un procédé de blanchiment de substrats, et notamment un procédé de nettoyage de tissus.

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