Improved optical brightening compositions

Details Improved optical brightening compositions Improved optical brightening compositions

D - Textiles, Paper

21

H

D21H 17/66 (2006.01) D21H 17/63 (2006.01) D21H 21/16 (2006.01) D21H 21/30 (2006.01)

Patent

CA 2719528

The instant invention relates to mixed salts of optical brighteners of formula (1), wherein M represents a mixture of M g 2 with another cation, which provide for superior optical brightening effects when applied to the surface of paper.

La présente invention porte sur des sels mixtes constitués dagents davivage optique selon la formule (1), dans laquelle M représente un mélange de Mg2+ avec un autre cation, qui assurent un éclaircissement optique supérieur lorsquils sont appliqués sur la surface dun papier.

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