Integrated pulping process of waste paper yielding tissue-grade

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste

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162 8, 162 21, D21C 502

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active

057559260

ABSTRACT:
This invention provides an integrated system for recovering fibers from mixed grades of waste paper and simultaneously cleaning (deinking) waste fibers. The system comprises a mild alkaline pulping process with oxygen and hydrogen peroxide followed by rapid decompression of fibers and then by hot washing.

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RD 376048, Aug. 10, 1995, Abstract.

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