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A kind of papermaking process method using paper mulberry bark as raw material

A paper-making process and bark-constructing technology, applied in the field of paper-making, can solve problems such as polluting the environment and endangering health, and achieve the effect of smooth hand feeling, fine paper quality and many fibers

Active Publication Date: 2017-09-26
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of chemical raw materials are added to the modern papermaking process, which easily leads to environmental pollution, and the use of paper containing chemical components will endanger human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Step 1: Collect 1,500 catties of biennial twigs as raw materials, heat the twigs with an open flame to 30-40°C, bake for 10 minutes, peel off the twig bark, scrape off the outer hard skin of the twig bark with a scraper, and place it in the Soak in water to make the fiber fully absorb water and become soft, so as to achieve the purpose of natural degumming;

[0020] Step 2: Put the bark pretreated in step 1 into the paper retort layer by layer according to the original bundle and cook for 8 hours to soften it. After being boiled soft, it will collapse naturally;

[0021] Step 3: Scatter the bark obtained in step 2 on a stone roller for rolling to separate the fibers in the fine parts of the skin from the debris impurities on the skin, dip the rolled skin in quicklime water, Stacking and fermenting for 12 hours, repeating this process 3 times, the amount of quicklime added is 300 catties; the hard fibers in the skin are corroded by the quicklime group, and then after a lo...

Embodiment 2

[0032] Step 1: Collect 1000 catties of bark raw materials and pre-treat: scrape off the bark skin of the bark, peel it and soak it in water to make the fibers fully absorb water;

[0033] Step 2: put the pretreated bark in step 1 into a paper retort and cook for 8 hours to soften it;

[0034] Step 3: Roll the bark obtained in step 2, then add quicklime to soak for 11 hours, repeat this 4 times, the amount of added quicklime is 250 jin;

[0035] Step 4: Put the bark bark obtained in step 3 into a paper retort and cook for 7 hours, so that the fibers of the bark bark are fully softened;

[0036] Step 5: wash off the lime and other impurities from the bark obtained in step 4 with running water, repeat this twice and rub and peel;

[0037] Step 6: Cut the bark fiber obtained in step 5 into 3cm thin slices with a steel knife, put the obtained thin slices into a stone trough and mash them to obtain pulp;

[0038] Step 7: Pour the obtained pulp into a paper trough filled with water...

Embodiment 3

[0040] Step 1: Collect 1,200 catties of bark raw materials and perform pretreatment: scrape off the bark skin of the bark, peel it and soak it in water to make the fibers fully absorb water;

[0041] Step 2: put the pretreated bark in step 1 into a paper retort and cook for 8 hours to soften it;

[0042] Step 3: Roll the bark obtained in step 2, then add quicklime to soak for 10 hours, repeat this twice, the amount of added quicklime is 288 jin;

[0043] Step 4: put the bark obtained in step 3 into a paper retort and cook for 8 hours, so that the fibers of the bark are fully softened;

[0044] Step 5: Wash the bark obtained in Step 4 to remove lime and other impurities, repeat this process 3 times and rub and peel;

[0045] Step 6: Cut the bark fiber obtained in step 5 into 5cm thin slices with a steel knife, put the obtained thin slices into a stone trough and mash them to obtain paper pulp;

[0046] Step 7: Pour the obtained pulp into a paper trough filled with water, and ...

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Abstract

The invention provides a papermaking process method utilizing paper mulberry bark as a raw material. The method comprises the following steps of firstly, performing primary screening and soaking on the paper mulberry bark, stewing the paper mulberry bark into a paper steamer, then grinding, adding quick lime, soaking for a period of time, then stewing the obtained paper mulberry bark into the paper steamer at a high temperature, washing off the lime and impurities from the obtained paper mulberry bark, kneading for peeling, cutting the peeled raw material into slices by use of a steel knife, putting the slices into a stone cistern, and mashing to obtain a paper pulp; and finally, pouring the mashed paper pulp into a paper channel full of water, fully stirring so as to ensure that the paper pulp forms uniform suspension flocculent in water, then performing papermaking and paper squeezing, and sweeping, stoving and tearing off wet paper with moisture, wherein the produced paper is not added with chemicals, does not cause damage to health of users, is fine and smooth in quality, flexible and tough, smooth in hand feeling, abrasion-resistant, free of wrinkles, long in preservation life and wide in application range, and has the characteristics of safety, no pollution, economical efficiency and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of papermaking, in particular to a papermaking process using bark as raw material. Background technique [0002] The paper industry has always been closely related to social and economic development and people's living standards. With the rapid development of the economy and the improvement of people's living standards, the utilization of paper has increased dramatically. However, a large number of chemical raw materials are added in the modern papermaking process, which easily leads to environmental pollution, and the use of paper containing chemical components will endanger human health. Therefore, people pay more and more attention to reducing the use of chemical additives in the papermaking process, improving the papermaking process, and maintaining the health of users. The bast fiber of the tree is a high-grade raw material for papermaking. Its material is white and suitable for papermaking. Content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/08D21B1/34D21C5/00
CPCD21B1/34D21C5/00D21H11/08
Inventor 刘倩胡传波谭礼斌孙姝丽邵得林王梓丞程浩王江潘
Owner SHAANXI UNIV OF SCI & TECH
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