Repulping wet strength paper and paperboard with persulfate and

Details Repulping wet strength paper and paperboard with persulfate and Repulping wet strength paper and paperboard with persulfate and

1995-06-07

1997-10-07

Hastings, Karen M.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 8, 162 6, D21C 502, D21C 302

Patent

active

056743580

ABSTRACT:
Paper and paperboard can be effectively repulped by a composition of nonchlorinated oxidizing agent (persulfates) and a buffer (carbonates) yielding a pH of 7-12. The repulping composition of the present invention is particularly useful in repulping paper containing wet strength resins.

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