Pulp making process employing straw to make environment-friendly paper film

A straw and pulping technology, which is applied in pulping of cellulose raw materials, non-woody plant/crop pulp, papermaking, etc., can solve the problems of papermaking vacancies and achieve obvious economic benefits

Inactive Publication Date: 2006-09-06
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is almost no papermaking for ecological agriculture, sustainable agriculture, farmland drought resistance, water saving, moisture conservation, and comprehensive utilization of waste straw.

Method used

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  • Pulp making process employing straw to make environment-friendly paper film
  • Pulp making process employing straw to make environment-friendly paper film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] 1. Raw material selection and processing

[0017] The raw materials are rice, wheat, grain, corn, sorghum, cotton and other straws and waste branches of fruit trees, air-dried, directly crushed to 1-2mm powder with a powder-bran machine, washed with water or according to the water-bran ratio of 1:5, add 0.1% Stir the yeast or white rot fungus fully, put it into a special (automatic temperature control, stirring fermentation tank or) fermentation tank, cover with a plastic cover for fermentation, heat at about 40-50°C, stir once every 15-20 hours, about Ferment for 48-72 hours and put it into the beating tank, or mix it with pulp residue and beat it for later use. Fermented and decomposed straw powder and bran raw materials can be pulped alone, or mixed with paper mill waste pulp in a ratio of 1:1 or 1:0.5.

[0018] Since the raw materials for pulping are annual wheat straw, straw, bagasse, reed, miscanthus and other vegetation stems or discarded fruit branches, the non...

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PUM

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Abstract

The invention discloses the pulping process with straw for producing environment protection paper film, comprising the following steps: using rice, wheat, paddy, corn, sorghum and cotton straw or waste straw or fruit tree waste branch as raw material, disintegrating them to 1mm-2mm, at the same time carrying out dust-absorbing; cleaning, putting them into fermenting tank or fermentation tank, adding 0.1% saccharomycete or white-rot fungi, stirring, keeping temperature, carrying out fermentation, then taking-up them and putting them into beating tank, direct pulping in beating tank, adding glue stock in slurry, the degree of applying glue amounting to 1.75mm, adding 1% talcum powder or calcium carbonate, and getting environment protection paper film slurry. The pulping process can prepare the environment protection paper film slurry, and has the advantages of good economic benefit, social benefit and ecological benefit.

Description

technical field [0001] The invention relates to a papermaking process, in particular to a pulping process using waste straw as a raw material to prepare an eco-agricultural-oriented environmentally friendly paper film. Background technique [0002] Present papermaking method is based on chemical method, and its process is that raw material (grass or wood) is cut into the chip (preparation) of certain size earlier, and raw material is boiled into paper pulp. Then rinse the pulp with a large amount of clear water (washing), and remove the coarse flakes and "pulp lumps" in the pulp by screening (screening). According to the requirements of the paper type, the pulp is bleached to a certain degree of whiteness (bleaching) with bleaching agent, then beating (beating) by beating equipment, and finally sent to the paper machine to pass through the screen part for water filtration, press dehydration, drying cylinder, and calendering , into rolls. General...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/22D21H11/12D21H21/16
Inventor 杜健洪晓强张永科邢宏宜夏志明海江波赵俊兴李胄田志诚王成常宗堂刘漫道杨安民王俊峰孙茂全
Owner NORTHWEST A & F UNIV
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