| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing regenerated pulp, by which a yield for waste paper of raw material can be improved. SOLUTION: This method for producing the regenerated pulp is characterized by spraying a dehydrated filtrate obtained from a concentration process on a screen 10 prepared by superposing at least three screen main bodies 13, 14, 15 in an order that at least three screen main bodies 13, 14, 15 having different opening sizes are sequentially disposed from the screen main body having a small size to the screen main body having a large size from one direction to the other direction, making the sprayed dehydrated filtrate to pass through the screen 10, separating and recovering pulp fibers contained in the dehydrated filtrate, and then adding the recovered pulp fibers and ash to the pulp slurry before a deinking process. COPYRIGHT: (C)2006,JPO&NCIPI
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