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Patent Searching and Data


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)
Application Number:
PCT/CN2019/084971
Publication Date:
July 02, 2020
Filing Date:
April 29, 2019
Export Citation:
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Assignee:
UNIV QILU TECHNOLOGY (CN)
International Classes:
D21C5/00; D21B1/16; D21C1/02; D21C1/06
Foreign References:
CN109577059A2019-04-05
CN1681992A2005-10-12
CN108978305A2018-12-11
CN107513875A2017-12-26
CN103243597A2013-08-14
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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