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Preparation method for environment-friendly ramie paper pulp

A kind of pulp and environmental protection technology, applied in pulp beating/refining method, beating/refining control device, non-woody plant/crop pulp, etc., can solve the problems of easy breakage and insufficient toughness of paper, and achieve less time and improve The effect of low strength and energy consumption

Inactive Publication Date: 2016-10-12
SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually papermaking additives do not contain fibers, but the produced paper is not tough enough, the paper is brittle and easy to break

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Use a pulverizer to crush the dry ramie into short fibers of 30-80 mesh, put the short fibers into a container with a sealing ring to balance the water, and measure the moisture regain of the short fibers; weigh the quality of the short fibers, and calculate the fiber according to the moisture regain. Dry weight; add distilled water to the short fiber, and soak the cellulose in distilled water to fully wet the cellulose; wherein, add distilled water to the short fiber so that the mass percentage concentration of the cellulose solid in the distilled water is 3%, and the soaking time in distilled water is 20h.

[0016] Stir short fibers with a beater to make cellulose pulp; put the prepared pulp into an ultrafine refiner, the rotor and stator discs of the ultrafine refiner have gaps and grooves on the surface, set the rotor and stator The distance between the discs allows the slurry to pass through the gap between the grinding stones of the ultra-fine refiner; adjust the r...

Embodiment 2

[0021] Use a pulverizer to crush the dry ramie into short fibers of 30-80 mesh, put the short fibers into a container with a sealing ring to balance the water, and measure the moisture regain of the short fibers; weigh the quality of the short fibers, and calculate the fiber according to the moisture regain. Dry weight; add distilled water to the short fibers, and soak the cellulose in distilled water to fully wet the cellulose; wherein, add distilled water to the short fibers so that the mass percentage concentration of cellulose solids in distilled water is 5%, and the soaking time in distilled water is 40h.

[0022] Stir short fibers with a beater to make cellulose pulp; put the prepared pulp into an ultrafine refiner, the rotor and stator discs of the ultrafine refiner have gaps and grooves on the surface, set the rotor and stator The distance between the discs allows the slurry to pass through the gap between the grinding stones of the ultra-fine refiner; adjust the rotati...

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PUM

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Abstract

The invention discloses a preparation method for environment-friendly ramie pulp. According to the method, the raw material price is low, no chemical reagent is needed, energy consumption and time consumption are small, and the preparation process has few negative effects on the environment. Raw materials of the pulp are reacted and bonded with groups of a crosslinking agent, so that the crosslinking agent plays the role of a bridge between starch and starch and between starch and fibers and makes starch and starch connected, starch and fibers connected and fibers and fibers connected, a net structure is formed, and thus the strength of the paper pulp is greatly improved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for preparing environmentally friendly ramie pulp. Background technique [0002] China's timber resources are very scarce, and the bottleneck of papermaking raw materials is prominent. The yield of pulp raw materials (the absolute dry amount of pulp that can be prepared per ton of absolute dry wood) is high, and the pulping waste liquid is less polluted and easy to handle, which meets the development needs of green papermaking. However, due to the poor strength of pulp raw materials, the quality of paper is reduced, thereby limiting its large-scale use in papermaking. The existing technology is to increase the strength of the slurry by adding starch to the slurry, but the retention rate of the starch in this type of method is low, which affects the improvement of the slurry strength. [0003] At present, natural cellulose is the most abundant high-molecular polymer...

Claims

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Application Information

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IPC IPC(8): D21B1/04D21B1/02D21D1/00D21D1/20D21H11/08D21H11/12D21H17/06D21H17/28D21H17/66D21H21/06
CPCD21B1/04D21B1/02D21D1/002D21D1/20D21H11/08D21H11/12D21H17/06D21H17/28D21H17/66D21H21/06
Inventor 不公告发明人
Owner SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD