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Corrugated paper produced by steam blasting straw to pulp and its production method

A technology of corrugated base paper and production method, applied in the direction of pulp beating method, pulping with inorganic alkali, paper, etc., can solve the problems that have not reached the level of large-scale industrial production

Inactive Publication Date: 2006-06-14
山东丰源中科生态科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Before applying for the patent of this invention, some units and some experts at home and abroad have also studied and discussed the "steam explosion" method for a long time, but they have never reached the level of large-scale industrial production.

Method used

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  • Corrugated paper produced by steam blasting straw to pulp and its production method
  • Corrugated paper produced by steam blasting straw to pulp and its production method

Examples

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Effect test

Embodiment

[0050] Preparation process:

[0051] Sheet length 20~30mm

[0052] Dust content ≤4%

[0053] Steam explosion process:

[0054] Among the present invention, steam explosion refers to the stalk of rough cutting (20~30mm long) of packing into the steam explosion tank of certain scale, and adds a small amount of caustic soda, at 145~180 ℃ vapor phase cooking temperature, under 0.9~2MPa pressure 12 to 18 minutes. Preferably, the steam-phase cooking temperature is 150-170° C., and the pressure is 0.9-1.1 MPa for 5 minutes, and then the pressure is 1.4-1.8 MPa for 10 minutes, and then the instant decompression is released to obtain the steam-exploded straw.

[0055] The main equipment of this process is the steam explosion tank and the spraying chamber. After the slurry is put into the spraying chamber after steam explosion, it must pass through four spiral conveyor belts and one main spiral conveyor belt, and a water spray pipe is installed in the second half of the spiral. Feed...

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Abstract

The invention relates to light weight high fatigue resistance semi-chemical corrugated paper produced by steam blasting stalk Kraft process and its manufacturing method. The method includes the following steps: using stalk as the raw material; do steam blasting after coarse cutting; adding its 0.5-2% bone dry weight into caustic soda; filling in steam blasting pot; vapor phase boiling temperature is 145-180 deg.C; pressure is 0.9-2.0MPa; treatment is time 12-18 min; gaining steam blasting stalk; washing and extracting; coarse beating; sieving; purifying; fine beating; gaining steam blasting ryegrass pulp; mixing the pulp and the existing natural color long fiber with 50-70% and 30-50% of their absolute dry percentages; facing wire and forming; pressing; drying; balling up to gain finished products. The invention has the advantages of low energy consumption, low pollution, and high yield. And it is good for environmental protection. The produced semi-chemical corrugated paper has the features of light weight, high fatigue resistance, and flat appearance.

Description

technical field [0001] The invention relates to a corrugated base paper and a production method thereof, in particular to a corrugated base paper produced by steam-explosion straw pulping and a production method thereof. Background technique [0002] In addition to being widely used in food packaging, corrugated base paper can also be used to package furniture, large electrical appliances, imitation products, and rubber products. Due to the structural characteristics of corrugated cardboard itself, it has a high strength / weight ratio and is a very good packaging material. my country's paper products, especially corrugated base paper, are mainly non-wood pulp structure. The traditional pulping process is to use alkali or acid to cook plant raw materials at a certain pressure and temperature, of which non-cellulose raw materials and all chemical raw materials account for half of the raw materials. Discharged as waste not only consumes a lot of energ...

Claims

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Application Information

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IPC IPC(8): D21H15/10D21B1/36D21C3/02D21D1/02D21H15/06
Inventor 陶志远郁永和孙中国郜金山刘剑孙启峰郁全丰杜娟
Owner 山东丰源中科生态科技有限公司
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