Title:
MANUFACTURING METHOD FOR DISSOLVING KRAFT PULP
Document Type and Number:
Japanese Patent JP2014001471
Kind Code:
A
Abstract:
To provide a technique for manufacturing dissolving pulp having high quality by a kraft pulping method using hardwood materials as raw materials.
There is provided a method for manufacturing dissolving pulp from hardwood materials including the steps of: adding water to wood chips including hardwood chips, processing the wood chips at a temperature ranging from 150 to 180°C for 30 to 400 minutes and performing decomposition or elution of hemi-cellulose components contained in the wood chips, (a); cleaning the wood chips after processing and collecting the wood chips, (b); and causing the wood chips collected to be subjected to a kraft pulping process and manufacturing pulp, (c).
Inventors:
TAKAYAMA MASAHITO
SUYAMA KENICHIRO
SATO KANA
ONO ATSUSHI
KUROSU KAZUHIRO
SUYAMA KENICHIRO
SATO KANA
ONO ATSUSHI
KUROSU KAZUHIRO
Application Number:
JP2012136398A
Publication Date:
January 09, 2014
Filing Date:
June 15, 2012
Export Citation:
Assignee:
JUJO PAPER CO LTD
International Classes:
D21C3/02; D21C3/26; D21C9/10
Domestic Patent References:
| JP2004256924A | 2004-09-16 | |||
| JP2004169203A | 2004-06-17 | |||
| JP2009052187A | 2009-03-12 | |||
| JPH09507697A | 1997-08-05 | |||
| JP2013227705A | 2013-11-07 | |||
| JPS4910602A | 1974-01-30 |
Foreign References:
| US20100000621A1 | 2010-01-07 | |||
| CN102493256A | 2012-06-13 |
Other References:
HERBERT SIXTA, HANDBOOK OF PULP, vol. 1, JPN7016000508, 30 January 2008 (2008-01-30), pages 351 - 355, ISSN: 0003271162
大江礼三郎、臼田誠人, 紙およびパルプ 製紙の化学と技術, JPN6016024414, 5 December 1986 (1986-12-05), JP, pages 395 - 433, ISSN: 0003345330
大江礼三郎、臼田誠人, 紙およびパルプ 製紙の化学と技術, JPN6016024414, 5 December 1986 (1986-12-05), JP, pages 395 - 433, ISSN: 0003345330
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Hiroyuki Tomita
Mitsutoshi Nakamura
Yasushi Kobayashi
Hiroyuki Tomita
Mitsutoshi Nakamura