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1. CN109577059 - Method for preparing biomechanical unbleached pulp from wheat straw

Office China
Application Number 201811645480.1
Application Date 29.12.2018
Publication Number 109577059
Publication Date 05.04.2019
Grant Number 109577059
Grant Date 01.05.2020
Publication Kind B
IPC
D21C 5/00
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5Other processes for obtaining cellulose, e.g. cooking cotton linters
D21C 1/02
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1Pretreatment of the finely-divided materials before digesting
02with water or steam
D21C 1/06
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1Pretreatment of the finely-divided materials before digesting
06with alkaline reacting compounds
D21B 1/16
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
1Fibrous raw materials or their mechanical treatment
04by dividing raw materials into small particles, e.g. fibres
12by wet methods; by the use of steam
14Disintegrating in mills
16in the presence of chemical agents
D21H 11/12
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
12Pulp from non-woody plants or crops, e.g. cotton, flax, straw or bagasse
CPC
D21B 1/16
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
1Fibrous raw materials or their mechanical treatment
04by dividing raw materials into small particles, e.g. fibres
12by wet methods, by the use of steam
14Disintegrating in mills
16in the presence of chemical agents
D21C 1/02
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1Pretreatment of the finely-divided materials before digesting
02with water or steam
D21C 1/06
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1Pretreatment of the finely-divided materials before digesting
06with alkaline reacting compounds
D21C 5/005
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5Other processes for obtaining cellulose, e.g. cooking cotton linters
005Treatment of cellulose-containing material with microorganisms or enzymes
D21H 11/12
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
12Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
D21D 1/00
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
Applicants QILU UNIVERSITY OF TECHNOLOGY
齐鲁工业大学
Inventors CHEN JIACHUAN
陈嘉川
JI XINGXIANG
吉兴香
YANG GUIHUA
杨桂花
TIAN ZHONGJIAN
田中建
WANG RUIMING
王瑞明
GUO YUQIAN
郭玉倩
Agents 济南圣达知识产权代理有限公司 37221
Title
(EN) Method for preparing biomechanical unbleached pulp from wheat straw
(ZH) 一种麦草秸秆制备生物机械本色浆的方法
Abstract
(EN)
The invention belongs to the field of papermaking technologies and novel materials, and particularly relates to a method for preparing biomechanical unbleached pulp from wheat straw. The method includes treating grass by alkaline biological enzymes; heating and treating the grass by hot alkali steam and then carrying out pulping and washing to obtain the biomechanical unbleached pulp. The grass isused as a raw material for the biomechanical unbleached pulp. The method has the advantages that the ring crush index of the biomechanical unbleached pulp prepared by the aid of the method can be obviously increased, the biomechanical unbleached pulp can be used for preparing corrugated paper or cardboard paper, and accordingly the compressive strength of cartons can be obviously improved.

(ZH)
本发明属于造纸技术与新材料领域,具体涉及一种麦草秸秆制备生物机械本色浆的方法。本发明以禾草为原料,采用碱性生物酶进行处理,然后在热碱蒸汽加热处理后磨浆、洗涤,即得。采用本发明方法制备得到的机械浆环压指数显著提高,用于制备瓦楞纸或箱板纸,可显著提高纸箱的抗压强度。

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