Persulfate mixtures for repulping wet strength paper

Details Persulfate mixtures for repulping wet strength paper Persulfate mixtures for repulping wet strength paper

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) D21H 21/20 (2006.01)

Patent

CA 2157880

A composition containing a persulfate and a carbonate, a bicarbonate or sesquicarbonate, which composition is suitable for oxidizing wet strength resin based broke used in wet strength paper. The combination decreases the time required for effectively repulping broke from such paper. Additionally, the combination is a single product capable of breaking down the wet strength resin and adjusting or maintaining pH at a predetermined value without additional chemical treatment.

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