Title:
METHOD FOR PREPARING BIOMECHANICAL UNBLEACHED PULP FROM GRASS STRAW
Document Type and Number:
WIPO Patent Application WO/2020/133857
Kind Code:
A1
Abstract:
Disclosed is a method for preparing a biomechanical unbleached pulp from grass straw, wherein same is obtained by treating grass as a raw material with an alkaline biological enzyme, then subjecting same to a heating treatment by means of a hot alkali steam, and then pulping and washing same. Also disclosed are a mechanical pulp obtained by using the above method and the use of the mechanical pulp in primary color wrapping papers and paper-based materials.
Inventors:
CHEN JIACHUAN (CN)
JI XINGXIANG (CN)
YANG GUIHUA (CN)
TIAN ZHONGJIAN (CN)
WANG RUIMING (CN)
GUO YUQIAN (CN)
JI XINGXIANG (CN)
YANG GUIHUA (CN)
TIAN ZHONGJIAN (CN)
WANG RUIMING (CN)
GUO YUQIAN (CN)
Application Number:
PCT/CN2019/084971
Publication Date:
July 02, 2020
Filing Date:
April 29, 2019
Export Citation:
Assignee:
UNIV QILU TECHNOLOGY (CN)
International Classes:
D21C5/00; D21B1/16; D21C1/02; D21C1/06
Foreign References:
| CN109577059A | 2019-04-05 | |||
| CN1681992A | 2005-10-12 | |||
| CN108978305A | 2018-12-11 | |||
| CN107513875A | 2017-12-26 | |||
| CN103243597A | 2013-08-14 |
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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