Processes and compositions for repulping paper

D - Textiles – Paper – 21 – C

Patent

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D21C 5/02 (2006.01)

Patent

CA 2283982

The present invention relates to a process and composition for the recovery of fibre from waste paper and paper broke which has been treated with wet-strength resins. Specifically the present invention is directed to the removal of such resins from the fibre material, so that such fibre material may be recycled to a paper web forming process, by using selected persulfates such as potassium persulfate. Optionally, the persulfate is used in combination with a surfactant. Improved repulping of the waste paper is achieved.

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