Persulfate mixtures for repulping wet strength paper

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

1997-03-17

1998-02-17

Gibson, Sharon

Compositions

Oxidative bleachant, oxidant containing, or generative

Contains inorganic peroxide

162 4, 162 5, 162 6, 162 7, 162191, D21C 108, D21C 106

Patent

active

057188378

ABSTRACT:
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 beaking down the wet strength resin and adjusting or maintaining pH at a predetermined value without additional chemical treatment.

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patent: 4699623 (1987-10-01), Dubreux et al.
Secondary Fiber "Persulfates as Repulping Reagents for Neutral/Alkaline Wet-Strength Broke" pp. 139-142.
Paper Makers Conference "Persulfate Salts to Repulp Broke" pp. 147-149 (1993).

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