Title:
脱インキパルプの製造方法
Document Type and Number:
Japanese Patent JP5479968
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing deinked pulp having a good ink-removing property and capable of improving ink-peeling off property even in a deinking condition of loading a high shearing force on waste paper pulp.SOLUTION: This method for producing the deinked pulp from printed waste paper, comprising a disintegrating step, kneading step, bleaching step and floatation step is provided by using a mixture containing 2 kinds of specific carbon number fatty acid alkylene oxide adducts in a specific ratio as the deinking agent, and also performing the kneading step ≥2 times.
Inventors:
Kenichi Suzuki
Koji Ikeda
Takeshi Edo
Koji Ikeda
Takeshi Edo
Application Number:
JP2010070108A
Publication Date:
April 23, 2014
Filing Date:
March 25, 2010
Export Citation:
Assignee:
Kao Corporation
International Classes:
D21C5/02
Domestic Patent References:
| JP5025790A | ||||
| JP6136677A | ||||
| JP58109696A | ||||
| JP5071086A |
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa
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