Method for producing raw material of papermaking fiber

Abstract

This invention relates to a method for producing paper making bamboo fiber materials, which applies a combination method of low chemical moist expansion, bio-degradation and physical analysis to cut up and select biomass for low chemical moist expansion, dipped with bacterium and analyzed mechanically then to be steamed and analyzed mechanically to prepare fiber materials of paper making, which meets the requirement of environment protection.

Description

technical field [0001] The invention relates to a method for producing papermaking fiber raw materials, especially bamboo fiber raw materials for papermaking. Background technique [0002] In the past, chemical pulping methods such as alkali method or sulfite method were the main methods of paper pulping. However, this simple chemical pulping method requires a large amount of chemicals in the early stage of production and consumes a lot of water resources. And cause a large amount of sewage discharge, can no longer meet the requirements of modern environmental protection, has been basically eliminated. At present, two methods are generally used. One is an ecological method that combines biodegradation and physical cracking. It is suitable for biomass fibers with low density, such as wood, grass, etc., and it needs to be puffed, which consumes a lot of energy and costs a lot. At the same time, the pulp made is hard and needs a long biodegradation time; Its fiber shape densi...

AI Technical Summary

Problems solved by technology

[0002] In the past, chemical pulping methods such as alkali method or sulfite method were the main methods of paper pulping. However, this simple chemical pulping method requires a large amount of chemicals in the early stage of production and consumes a lot of water resources. And cause a large amount of sewage discharge, can no longer meet the requirements of modern environmental protection, has been basically eliminated

At present, two methods are generally used. One is an ecological method that combines biodegradation and physical cracking. It is suitable for biomass fibers with low density, such as wood, grass, etc., and it needs to be puffed, which consumes a lot of energy and costs a lot. At the same time, the pulp made is hard and needs a long biodegradation time; Its fiber shape density is high, the longitudinal and transverse hardness is high, tough, and the fiber structure is quite firm. It takes a long time for biodegradation to make papermaking bamboo pulp using a simple ecological method, which limits the output and has a greater impact on infrastructure. High requirements, therefore, there are many disadvantages in adopting the ecological pulping method

The other is a method of combining semi-chemical and physical cracking, which is mainly based on the chemical pulping method, by adding a relatively medium to high content of chemicals, and pulping under high-strength mechanical tearing, This method has quite high requirements on machinery, and there is also a certain degree of environmental pollution.