FIELD: textiles, paper.
SUBSTANCE: method of obtaining secondary cellulose fibers by wastepaper recycling of corrugated cardboard includes repulping of waste paper, removing the heavy and light impurities, and coarse and fine screening of repulped stock. Repulping, removing the heavy and light impurities, coarse and fine screening of repulped stock are carried out simultaneously in one unit of percussion in the air flow at the rotor speed of 1400-2000 r/min for 40-60 seconds.
EFFECT: simplification of the process of wastepaper recycling of corrugated cardboard, increase in its economical efficiency and environmental friendliness while maintaining physical and mechanical properties.
1 dwg, 1 tbl
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|---|---|---|---|
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