Title:
REGENERATION OF WASTE PAPER OF CORRUGATED BOARD BY RISING-FLOATING AND KNEADING TREATMENT
Document Type and Number:
Japanese Patent JP3099294
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for regenerating waste paper of corrugated board in high production efficiency enabling the effective removal of ink spots and dusts remaining on long fibers by subjecting the waste paper of corrugated board to a rising-floating treatment to separate ink and fine fibers, and subsequently to a kneading treatment.
SOLUTION: Waste paper of corrugated board of the concentration of 0.5-2.0 wt.% is subjected to a rising-floating treatment under conditions of a temperature of 20-55°C, a flow velocity of 10-55 l/min and an air flowing quantity of 5-20 l/min to separate ink and fine fibers, and subsequently the treated waste paper is subjected to a kneading process with the result that ink spots, dusts etc., having sizes of 200 μm or more remaining on long fibers obtained by separating fine fibers in the above-mentioned process are efficiently removed.
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Inventors:
Ryu Chung Yong
Jikyung Rak
Shin Jung Ho
Osekyung
Jikyung Rak
Shin Jung Ho
Osekyung
Application Number:
JP17608699A
Publication Date:
October 16, 2000
Filing Date:
June 22, 1999
Export Citation:
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
International Classes:
D21B1/14; D21C5/02; (IPC1-7): D21C5/02; D21B1/14
Domestic Patent References:
| JP58169589A | ||||
| JP5209383A | ||||
| JP959888A | ||||
| JP5742991A |
Attorney, Agent or Firm:
Eiichi Saito (1 person outside)