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Corn straw raw material used for paper making

A corn stalk and raw material technology, applied in the field of bundled corn stalk raw materials, can solve the problems of tearing index drop, limited application range, yellowing, etc., and achieve the effect of low carrying capacity

Active Publication Date: 2015-03-11
SHANDONG TRALIN PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned technology is only limited to extruding corn stalks for forage grass, which greatly limits its application range
And because the pulp is not removed when the above-mentioned kneading technology is used, the corn stalk with a silky structure obtained after processing contains all the pulp of the corn stalk, and because the pulp contains a certain amount of xylan hemicellulose, this type of semicellulose Under the action of light and oxygen, cellulose is easily oxidized to form carbonyl chromophore and carboxyl auxochrome, which will cause serious yellowing phenomenon when used in papermaking; The tear index of the paper is reduced to a certain extent

Method used

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  • Corn straw raw material used for paper making
  • Corn straw raw material used for paper making
  • Corn straw raw material used for paper making

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The moisture content of a paper-making corn stalk raw material is 15%; the paper-making corn stalk raw material at least comprises separated skins, pulp and leaves, wherein the content of the skins is 35wt%, and the content of the leaves is 55wt%, The content of pulp is 3wt%, and the balance is other components.

[0048] The above-mentioned corn stalk raw material for papermaking is obtained by the following process route:

[0049] The corn stalks harvested at the corn maturity stage are passed through the agricultural harvester of the present invention (such as figure 1 and figure 2 After harvesting, separation of skin, flesh and leaves, and drying in the field until the moisture content is 15%, it is obtained by bundling.

[0050] see figure 1 and figure 2 , the agricultural harvester used in this embodiment includes a chassis 4, a power device, an electrical device, a hydraulic system, a cab 5, a harvesting header 1 for harvesting corn stalks, tearing and smash...

Embodiment 2

[0062] The moisture content of a paper-making corn stalk raw material is 45%; the paper-making corn stalk raw material at least comprises separated skins, pulp and leaves, wherein the content of the skins is 25wt%, and the content of the leaves is 60wt%, The content of pulp is 7wt%, and the balance is other components.

[0063] The above-mentioned corn stalk raw material for papermaking is obtained by the following process route:

[0064] The corn stalks harvested at the corn maturity stage are passed through the agricultural harvester of the present invention (such as figure 1 and figure 2 After harvesting, separation of skin, pulp and leaves, and air-drying in the field to a moisture content of 45%, it is obtained by bundling.

[0065] On the basis of Example 1, the agricultural harvester used in this example is further equipped with a straw bark dispersing device 6 and an anti-blocking device 7, see image 3 , and its working process is the same as that of Example 1.

...

Embodiment 3

[0071] The moisture content of a raw material of corn stalk for papermaking is 30%; the raw material of corn stalk for papermaking at least comprises separated skins, pulp and leaves, wherein the content of the skins is 30wt%, and the content of the leaves is 58wt%, The content of pulp is 5wt%, and the balance is other components.

[0072] The above-mentioned corn stalk raw material for papermaking is obtained by the following process route:

[0073] The corn stalks harvested at the corn maturity stage are passed through the agricultural harvester of the present invention (such as figure 1 and figure 2 After harvesting, separation of skin, flesh and leaves, and bundling in the field to air-dry to a moisture content of 30%.

[0074] The described agricultural harvester is the same as that of Example 1.

[0075] The content of the corn stalk husk is 10 wt %, and the content of the corn stalk husk is 20 wt %. The content of the free pulp is 4.5 wt %, and the content of the b...

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Abstract

The invention relates to a corn straw raw material used for paper making. The corn straw raw material used for the paper making is selected from the corn straw harvested in the corn mature period, and the water content of the corn straw raw material used for the paper making is 15-45%. The corn straw raw material used for the paper making comprises separated peel, pulps and leaves, wherein the peel content is 25-35wt%, the leaf content is 55-60wt%, the pulp content is 3-7wt%, and the balance is other components. According to the corn straw raw material used for the paper making, which is disclosed by the invention, the problems of storage and transportation can be better solved, the use performance is improved, and the corn straw raw material used for the paper making can be widely used for the paper making field. The application field of the corn straw raw material is widened, the use value is improved, the corn straw raw material can be purchased on a large scale, and the large-scale industrial utilization is realized.

Description

technical field [0001] The invention relates to a bundle-shaped corn stalk raw material, in particular to a processed corn stalk raw material for papermaking. Background technique [0002] my country is one of the countries with the most abundant straw resources in the world, and the annual output of various crop straws reaches more than 700 million tons. As one of the three major food crops, the annual output of its by-product corn stalk is about 250 million tons, accounting for as much as 30% of the total amount of various crop stalks, ranking second in the world after the United States. [0003] The yield of corn stover is so abundant, but it has not been used reasonably and effectively. In the past, the way people dealt with straw was to use a small part of the straw as heating and cooking material or roughage for ruminants, and most of it was discarded on the ground or burned on the spot. , property threats. With the advancement of science and technology and the inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/00
Inventor 李洪法黄洪星华新生毕衍金宋明信
Owner SHANDONG TRALIN PAPER