Title:
METHOD OF PRODUCING PULP RAW MATERIAL FROM WASTE PAPER
Document Type and Number:
Japanese Patent JP2020172717
Kind Code:
A
Abstract:
To produce waste paper pulp from odor-containing waste paper by decreasing odor of odor-containing waste paper, and to enable effective utilization of resources.SOLUTION: The method of producing waste paper pulp from odor-containing waste paper, is characterized by comprising a first disintegration step of disintegrating the odor-containing waste paper to obtain a disintegrated material by supplying pulper with the odor-containing waste paper and injecting ozone-containing gas thereinto prior to or during disintegrating the odor-containing waste paper, and a raw material preparation step of converting the disintegrated material to raw material of waste paper pulp.SELECTED DRAWING: Figure 33
Inventors:
MORISHITA TORU
Application Number:
JP2019074417A
Publication Date:
October 22, 2020
Filing Date:
April 09, 2019
Export Citation:
Assignee:
DAIO SEISHI KK
International Classes:
D21C5/02; A61L11/00; B09B1/00; B09B3/00; B09B5/00; D21B1/32
Domestic Patent References:
| JPH03199477A | 1991-08-30 | |||
| JP2001049588A | 2001-02-20 | |||
| JPH07145583A | 1995-06-06 | |||
| JP2000119699A | 2000-04-25 | |||
| JP2003509213A | 2003-03-11 | |||
| JP2003500560A | 2003-01-07 | |||
| JPH04204354A | 1992-07-24 | |||
| JP2019007123A | 2019-01-17 | |||
| JPH06313194A | 1994-11-08 | |||
| JPH10298885A | 1998-11-10 |
Foreign References:
| CN103556515A | 2014-02-05 |
Attorney, Agent or Firm:
Nagai International Patent Office