Process for Producing Fiber Pulp Utilizing Bamboo and Pulp Produced Using the Same

Abstract

Disclosed is a process for producing pulp utilizing bamboo, comprising finely cutting the bamboo into short segments and subjecting the cut bamboo to screening and washing processes to thereby produce dissolving pulp capable of achieving reduced consumption of chemical agents used during pre-hydrolysis and pulping processes and case of reaction, and having superior quality and high yield. Further, provided are also a process for producing fiber (dissolving) pulp utilizing bamboo, capable of preventing generation of dioxin by bleaching the pulp via ECF or TCF bleaching, and a pulp produced using the same.

Description

TECHNICAL FIELD[0001]The present invention relates to a method for producing fiber pulp using bamboos, and more particularly to a method for producing good-quality fiber (dissolving) pulp using bamboos, which comprises longitudinally splitting the bamboo, transversely cutting the split bamboo to short lengths, dissolving hemicellulose from the cut material by prehydrolysis, and bleaching the prehydrolyzed material with a bleaching agent causing low environmental pollution, and thus has a high pulp production yield and does not emit environmental pollutants such as dioxin, as well as pulp produced thereby.[0002]Generally, papermaking and dissolving pulps are recognized to be produced using wood.[0003]As used herein, the term “dissolving pulp” refers to fiber pulp that can be used later to produce fibers.[0004]In other words, because the dissolving pulps consist mostly of wood pulps, and producing pulp as the raw material of paper while conserving forests due to the lack of wood resou...

AI Technical Summary

Benefits of technology

[0024]The present invention has been made to solve the above-described problems occurring in the prior art, and it is an object of the present invention to provide a method for producing good-quality fiber (dissolving) pulp using a bamboo, which comprises longitudinally splitting the bamboo, transversely cutting the split bamboo to short lengths, dissolving hemicellulose from the cut material by prehydrolysis, and bleaching the prehydrolyzed pulp with a bleaching agent causing low environmental pollution, and thus has a high pulp production yield and does not emit environmental pollutants such as dioxin, as well as pulp produced thereby.

Problems solved by technology

In other words, because the dissolving pulps consist mostly of wood pulps, and producing pulp as the raw material of paper while conserving forests due to the lack of wood resources and maintaining the environment have recently became a great problem, effects to produce pulp using non-woody plant fibers and the like are being conducted.

The development of industry and civilization really led to a great improvement in the quality of life of mankind, but involved a rapid increase in energy use, so that the emission of greenhouse gas was also rapidly increased, and thus the contamination of the global environment and side effects thereof became very severe.

In typical examples thereof, the depletion of the ozone layer in the South Pole becomes very rapidly severe, and misfortunes caused by a rapid change in weather, global warming and ecosystem destruction occur in the whole world.

Accordingly, in manufactures in various countries, efforts to reduce greenhouse gas emissions are urgently required, and in severe cases, additional expenses for purchasing greenhouse gas emission rights are expected.

However, this technology has shortcomings in that it does not consider the compact structure of the bamboo, so that the pulping of the bamboo is not satisfactorily achieved, and it consumes large amounts of chemicals and energy, and has low yield because a bleaching process is conduced in strong conditions.

In addition, it causes the decomposition and destruction of fiber, making the fiber weak.

Also, because bleaching powder that acts as the cause of the corrosion of an apparatus is used as a bleaching chemical, the durability of the production apparatus is highly problematic.

In addition, this processing problem acts as the cause of increasing chemical amount, energy consumption and production cost per unit pulp production.

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