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.
CN1986960AInactive Publication Date: 2007-06-27TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2007-06-27
Estimated Expiration
Not applicable · inactive patent

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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.
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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
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