Title:
【発明の名称】再利用パルプの脱インキ法
Document Type and Number:
Japanese Patent JP3453146
Kind Code:
B2
Abstract:
A process for separating printing ink from recycled paper fiber includes the steps of repulping recycled paper furnish with water in a rotary mixer for about 5 minutes at a consistency of 6% to 18% with a mixing element having a top speed no greater than 2,000 ft/min. This first stage repulping and mixing is followed by a second mixing stage of 20 to 45 minutes with a mixing element tip speed of 2,500 to 4,000 ft/min. Agglomerated contamination particles in the resulting slurry are removed by centrifugal cleaning and slot screening.
Inventors:
Mark Ham, Larry Darwood
Application Number:
JP51342695A
Publication Date:
October 06, 2003
Filing Date:
November 04, 1994
Export Citation:
Assignee:
INTERNATIONAL PAPER COMPANY
International Classes:
D21B1/32; D21B1/34; D21C5/02; (IPC1-7): D21B1/34; D21C5/02
Domestic Patent References:
| JP5663088A | ||||
| JP60156198U |
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)