Lignin removing pulping agent and plant fiber lignin removing pulping method

Abstract

The invention provides a lignin removing pulping agent and a plant fiber lignin removing pulping method, and relates to the technical field of plant fiber pulping. The lignin removing pulping agent comprises a composite biological enzyme agent, a composite microbial agent and a chemical auxiliary agent, wherein the mass ratio of the composite biological enzyme agent to the composite microbial agent to the chemical auxiliary agent is (4-6):(2-3):(2-3). The composite biological enzyme agent comprises laccase, ligninase, hemicellulase, xylanase, glucosidase, lipoxygenase and coenzyme, wherein themass ratio of the laccase to the ligninase to the hemicellulase to the xylanase to the glucosidase to the lipoxygenase to the coenzyme is (3-5):(2-3):(1-2):(1-2):(1-2):(1-2):(1-2). The technical problem that pulping by using a microorganism preparation cannot meet the high-efficiency high-quality requirement of the papermaking industry at present is relieved; through the combination of the composite biological enzyme agent, the composite microbial agent and the chemical auxiliary agent, the removal rate of lignin from the plant fibers is accelerated, the pulping cycle is shortened, and the lignin residue in the papermaking slurry is reduced.

Description

technical field [0001] The invention relates to the technical field of plant fiber pulping, in particular to a lignin removal pulping agent and a plant fiber lignin removal pulping method. Background technique [0002] my country is the first country to invent papermaking technology, and it is also the largest country in the world for papermaking and paper consumption. The papermaking industry has become one of the important industries of our national economy. Papermaking is divided into two process stages, one is pulping, and the other is papermaking. Pulping is to separate the fibers from plant raw materials, and make slurry through washing, screening, crushing, and concentration; papermaking is to make pulp Dilution, streaming, mesh screening, pressing, molding, and drying are used to make paper, among which pulping is an important link in the papermaking process, which determines the quality of paper. [0003] Traditional pulping uses chemical methods, mechanical method...

AI Technical Summary

Problems solved by technology

[0004] With the continuous development of biotechnology, some people have developed microbial preparations for the pulping process, which degrade lignin in plant fibers through microorganisms, significantly reducing the discharge of wastewater and reducing environmental pollution, but because microbial preparations mainly make certain Some biological flora and their metabolites have a slight and slow effect on lignin in plant fibers, which cannot meet the high-efficiency and high-quality requirements of the current paper industry.

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