Technology for improving corrugated box board paper strength using laccase treating OCC pulp

A corrugated box and laccase technology, applied in fiber raw material processing, pulp raw material addition process, paper and other directions, can solve problems such as increasing production cost and affecting the effect of adding papermaking enhancers.

Inactive Publication Date: 2007-06-27
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a higher content of anionic garbage will affect the addition effect of traditional p

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Technology for improving corrugated box board paper strength using laccase treating OCC pulp

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0054] (1) Preparation of pulp suspension

[0055] Hydropulper disintegration: Unbleached chemical pulp, semi-chemical pulp and OCC waste paper are first disintegrated in a hydropulper to prepare pulp with a certain concentration. For OCC waste paper, it is also necessary to remove heavy and bulky impurities in the waste paper during the shredding process.

[0056] Deflagging: For OCC waste paper pulp, fiber separators, disc refiners or high-frequency deflakers are used for deflaking. The purpose is to further decompose the OCC waste paper pulp into a single fiber state.

[0057] Purification and screening: For OCC waste paper pulp, use a cleaner and screener for purification and screening. Deslagging is to remove impurities in waste paper pulp by using the principle that impurities are different from fibers in specific gravity; screening is to use the principle of different shapes and sizes of impurities and fibers to remove impurities in waste paper pulp that are close to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A technique for increasing the strength of paperboard or corrugated paperboard by using laccase to treat the OCC pulp, unbleached chemical pulp, or semi-chemical pulp is disclosed. As the circulated white liquid used in making paperboard with said unbleached chemical pulp, semi-chemical pulp and OCC pulp contains a lot of fine fibers, sterol ester, abietic acid, lignan and lignin, which carry a great deal of anions to decrease the effect of strengthening agent and result in environmental pollution, the laccase is used for the catalytic oxidization of wooden fibers to generate the free phenoloxy radicals on the surfaces of wooden fibers and improve the binding strength between fibers.

Description

technical field [0001] The invention relates to a production process for producing corrugated box board paper and liner board by using unbleached chemical pulp, semi-chemical pulp and OCC waste paper pulp as raw materials. Background technique [0002] Corrugated boxboard is an important material for the production of cartons and cartons. It is composed of kraft liner board and corrugated medium paper. The main raw materials for the production of corrugated cardboard are unbleached chemical pulp, semi-chemical pulp and OCC waste paper pulp. In order to protect the environment and make full use of secondary fiber resources, OCC waste paper is currently an important raw material for the production of corrugated boxboard. [0003] OCC (Old Corrugated Containers) waste paper is corrugated box waste paper. The typical production process of corrugated boxboard paper produced from OCC waste paper is as follows: [0004] Shredding: OCC waste paper shredding is carried out in a hyd...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D21F11/12D21H17/22D21H21/20D21H23/08D21H23/18
Inventor 裴继诚石淑兰王飞刘娜
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap