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Method for preparing mulching paper from corn stalks

A technology for corn stalks and mulch paper, applied in pulp beating/refining method, special paper, paper and other directions, can solve the problems of plastic mulch refractory degradation, environmental pollution, etc., and achieve the effect of suppressing weeds

Inactive Publication Date: 2019-06-11
SHANDONG TRALIN PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a natural color paper mulch, which can replace the plastic film on the market, and can solve the problems of plastic mulch being difficult to degrade and polluting the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Crush the corn stalks to 2-2.5 cm, add the crushed corn stalks to cornmeal with a weight of 0.5% of the weight of the corn stalks, add water to adjust the water content of the corn stalks to 63%, mix well, and place the processed corn stalks in the storage In the cellar, it is flattened, compacted and sealed to form anaerobic conditions. The yellow is stored for 30 days, with a pH of 3 and a water content of 58%.

[0013] The yellow storage corn stalk raw material is put into the spherical digester after being prepared, and the ammonium method is used for cooking, and the cooking liquid is added. The amount of ammonium sulfite is 14% of the absolute dry raw material, and the liquid ratio is 1:2.8. Steam is added for heating , heat up to 175°C and keep warm for 40 minutes to obtain a coarse pulp with a potassium permanganate value of 16. The coarse pulp is subjected to black liquor extraction and pulp washing to obtain a washed pulp with a concentration of 8%.

[0014] T...

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Abstract

The invention relates to a method for preparing mulching paper from corn stalks. The method comprises the following technical processes: pulverization, yellow storage, cooking, black liquor extraction, grinding, and papermaking. According to the method provided by the invention, the mulching film produced by the method can be degraded after being discarded in farmland, and does not damage a soil structure or pollute the environment.

Description

technical field [0001] The invention belongs to the crop straw utilization technology, and relates to a degradable natural-color agricultural mulch paper prepared from corn straw. Background technique [0002] With the continuous development of agricultural production, the scale of using plastic mulch in rural areas is also increasing. Agricultural mulch is generally formed by plastic blow molding such as polyvinyl chloride, which is a very thin film. It is very difficult to recycle agricultural mulch film after use, and most of it is discarded in farmland, which cannot be degraded for a long time and pollutes the environment. In addition, when the currently produced degradable plastic mulch is used, a large amount of plastic particles enter the soil, which will damage the soil structure and affect agricultural production over time. Contents of the invention [0003] The purpose of the present invention is to provide a natural color paper mulch, which can replace the plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21F11/00D21H11/12D21D1/20D21H21/20D21H17/28
Inventor 毕衍金宋明信牛彦生
Owner SHANDONG TRALIN PAPER
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