Title:
脱インキパルプの製造方法
Document Type and Number:
Japanese Patent JP3985551
Kind Code:
B2
Abstract:
To provide a method for producing a deinked waste paper pulp, reducing a discharged water load in a deinked pulp production by not performing an alkali soaking, and also improving the de-inking property in a cellulase treatment by an ozone treatment as a pre-treatment.
This method for producing the deinked pulp of printed wastepaper including the cellulase treatment process, is provided by performing the ozone treatment at ≥15% pulp concentration directly before the cellulase treatment as the pre-treatment for the cellulase treatment, and without including the alkali soaking process.
COPYRIGHT: (C)2003,JPO
Inventors:
Takashi Yaesawa
Yaegashi Isamu
Yaegashi Isamu
Application Number:
JP2002053652A
Publication Date:
October 03, 2007
Filing Date:
February 28, 2002
Export Citation:
Assignee:
Oji Paper Co.,Ltd.
International Classes:
D21C5/02; D21C9/153
Domestic Patent References:
| JP9049179A | ||||
| JP7189154A | ||||
| JP6025986A | ||||
| JP2001214389A | ||||
| JP4308292A | ||||
| JP10259584A |