Method for making hand-made paper by dry method

A soil-based paper and dry-process technology, which is applied in papermaking, paper machines, textiles and papermaking, etc., to achieve the effects of less drying steam consumption, accurate quantification, and low labor intensity

Inactive Publication Date: 2011-07-20
HUIBEI ZIGUIHENGKANG FURNITURE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of technology can't produce continuously because of needing to soak bamboo for a long time, and the production efficiency is low; the traditional method consumes a lot of water, and the discharged water contains alkali and a lot of fibers, the loss is serious, and the pulping rate is within 60%, causing serious damage. environmental pollution

Method used

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  • Method for making hand-made paper by dry method
  • Method for making hand-made paper by dry method

Examples

Experimental program
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Effect test

Embodiment

[0040] The raw bamboo is cut into bamboo pieces with a length of 30mm-50mm by a cutter head bamboo cutting machine, and the bamboo pieces are slowly passed through the lye pool by a belt conveyor. The time is generally 5-10 minutes, and the lye used has a concentration of 10-20 % sodium hydroxide solution, the bamboo chips in the lye pool are stacked for 24 hours to fully absorb the lye, so that the lignin between the fibers is dissolved, and then the bamboo chips that have absorbed the lye are input into the grinder, and the grinder The high-speed rotating flying blade inside cuts the bamboo material, separates the filaments, and brooms the fiber. The high-speed rotating flying blade collides with the raw material, and the friction generates a lot of heat energy to reduce the water content of the pulverized pulp from 40% to 15%. Heating and evaporating the pulp moisture can meet the pulp requirements of the drylaid paper machine and save energy.

[0041] The dry pulp in the p...

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Abstract

The invention relates to a method for making handmade paper by a dry method, wherein, bamboo is adopted as raw material, dry paper pulp is obtained after the bamboo is crashed, a dry paper pulp sheet can be obtained from the dry paper pulp by extrusion, the dry paper pulp sheet is further dispersed into fiber, and the dry paper pulp fiber enters an air channel in the suspension form under the action of an airflow generated by an induced draft fan and is intercepted by a polyester net to form a uniform dry paper pulp layer which is covered with a fixed layer; under the holding of the upper fixed layer and the lower polyester net, wet paper is formed by the dry paper pulp layer treated with water absorption by a water supplying tank, the wet paper is separated from the fixed layer and the polyester net after being extruded, and the handmade paper can be obtained form the separated wet paper by drying. The method for making the handmade paper has only one harmful chemical, i.e., alkali liquor which is added in the production process, and gas and liquid are not discharged in the production process to pollute the environment; in the pulping process, the pulp outcome rate of the raw material reaches more than 95 percent, the sizing agent does not need washing and can not be lost, thus utilizing the bamboo resources maximally and saving the raw material.

Description

technical field [0001] The invention relates to a method for manufacturing soil paper, in particular to a method for manufacturing soil paper by a dry method with no emission and little pollution. Background technique [0002] Earth paper, also known as Ming paper, is a sacrificial article. The current technology used is to put the raw moso bamboo into a pool and soak it with quicklime or alkali, and then use a stone roller to crush it after soaking for three months. The fibers are bundled and divided into fine fibers, and the beaten pulp contains 95% water, which is pumped to the traditional wet paper machine cylinder to form a uniform fiber layer (wet paper sheet) and brought into the bed by the felt. Roller, vacuum box, press dehydration and wind up into wet paper (water content 90-100%), the wet paper is manually cut into flakes with a side length of about 240mm, dried and packed into the warehouse. This kind of technology can't produce continuously because of needing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00D21B1/06D21B1/12D21F7/08D21F5/02
Inventor 傅新高长林
Owner HUIBEI ZIGUIHENGKANG FURNITURE
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