Paper making method taking canes, leaves and fruit stems of banana tree as raw materials

Abstract

The invention discloses a papermaking method taking canes, leaves and fruit stems of a banana tree as raw materials, which comprises the steps of collection and edge damaging of the materials, chipping, thread rolling, pulp washing, grinding, pulping, batching, siruping and paper making. The batching: adding modified cassava starch according to the weight proportion of the banana tree pulp to the modified cassava starch as 1000:1; and the siruping: cooking by heating the mixture of the banana tree pulp and the modified cassava starch to 100 DEG C. The invention is a papermaking method with low development cost and small labor intensity and takes the canes, the leaves and the fruit stems of the banana tree as the raw materials, which turns the useless waste into valuable material, makes full use of the resources and provides a new material resource for the papermaking industry of China, needs no chemical additive in the processes of pulping and grinding, plays an active role in the reduction of deforestation for the demand of papermaking and in the protection of the ecology, breaks the traditional papermaking process and is a pure-nature papermaking process without discharge of 'the three wastes (wastewater, waste gas and waste residue)'.

Description

technical field [0001] The invention relates to a papermaking method, in particular to a papermaking method using banana tree stems, leaves and fruit stalks as raw materials. Background technique [0002] China is a big country of paper making and has a long history. The papermaking raw materials are mainly wood, grass, and bamboo. The papermaking process is slightly different due to different raw materials. The basic process of using wood to make paper is: cutting→cooking→bleaching→pulping→papermaking. Feasible, but due to the adoption of the cooking process, the energy consumption is high and the pollution is very large; when bleaching, the use of caustic soda, hydrogen peroxide, urea, etc. also inevitably pollutes the environment. [0003] At present, there are many tropical plants in tropical and subtropical regions. South my country is a subtropical region, which is suitable for growing bananas. Bananas are one of the four famous fruits in my country. The stems and ot...

AI Technical Summary

Problems solved by technology

Papermaking raw materials are mainly wood, grass, and bamboo. The papermaking process is slightly different due to different raw materials. The basic process of using wood to make paper is: cutting→cooking→bleaching→pulping→papermaking. It is feasible, but because of the cooking process, the energy consumption is high and the pollution is very large; when bleaching, caustic soda, hydrogen peroxide, urea, etc. are used, which inevitably pollute the environment

Banana stems and other parts are rich in cellulose, because its special fiber molecules are different from other hemp, banana fiber hemp is rich in pectin, wood, hemicellulose and other substances, so that fresh banana hemp can Among them, it is susceptible to oxidation and quickly turns black, and the fibers are prone to breakage. Therefore, because the banana stems are not well developed and utilized, they often become a kind of waste and are discarded in the corners of the fields, leaving them to rot in the fields. , seriously pollute the environment

In recent years, although someone has invented a method of extracting fibers from banana stems, the extracted fiber content is only 1% to 1.5% of the original stem. During the fiber extraction process, there are still many short fibers that are discharged together with the waste. Therefore, after the fiber is extracted, the stacking of the waste left behind will cause secondary environmental pollution