METHOD OF PAPER RECYCLING Russian patent published in 2013 - IPC D21B1/32 D21C5/02 

FIELD: textiles, paper.

SUBSTANCE: paper finishing method lies in the fact that paper is made from pulp containing wood fibre in which the binder and clay is added, and then forming in sheets is carried out, initially waste paper is sorted according to its classification, and then is loaded into an autoclave for dispersing, removal of dirt, oil, typographic ink and other foreign matters, then it is impregnated, bleached to form pulp slurry. After the pulper the processed mass enters the column for wet processing, where soaking is carried out. Then, it is supplied to a sieve where the emission of dirt and foreign matters is carried out, and then flotation, followed by filtration, washing, dehydration and degreasing and then final treatment by bleaching with release of chemicals is carried out.

EFFECT: invention enables to improve the performance and quality of recycled waste paper.

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