Quaternary compounds as brightness enhancers

D - Textiles – Paper – 21 – C

Patent

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D21C 9/10 (2006.01) D21C 9/16 (2006.01)

Patent

CA 2128832

ABSTRACT A process is disclosed for maximizing the brightness of wood pulps which have been treated to anionic bleaching agents wherein the brightness is enhanced by the use of selected quaternary ammonium compounds.

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