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Preparation method of corrugated paper

A technology for corrugated paper and corn starch, applied in papermaking, papermaking, textiles and papermaking, etc., can solve the problems affecting the strength of corrugated paper products, the moisture content, the decline in water resistance and puncture resistance, and the lack of patent documents. Puncture properties, improved water resistance, enhanced water penetration resistance

Inactive Publication Date: 2013-07-31
蓟县东赵乡福利造纸厂
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of corrugated paper, the following methods are usually used: pulping → pressure pumping into the pulp stabilization tank → water pressure difference spraying water to hang pulp → felt through suction → vacuum pump dehydration and drying → heating dryer drying → finished product finalizing and coiling, etc. Process design, the defect of this process is that sometimes in order to save costs, waste paper is wet pulverized and then pulped, but its water resistance and puncture resistance will be reduced, and because of the short drying and aging process in the preparation process, thus Affects the strength and moisture content of corrugated paper products
[0004] After searching, no patent documents related to the content of this patent were found

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] A preparation method of corrugated paper, the raw material composition and the parts by weight thereof are respectively:

[0027] Corn starch 200kg

[0028] Ammonium persulfate 16 kg

[0029] Aluminum sulfate 40 kg;

[0030] Its preparation steps are:

[0031] (1) Pulping: add 1 t of water to the reaction kettle, raise the temperature, keep the temperature at 80 °C, add corn starch with stirring, and mix evenly to obtain a corn starch solution;

[0032] (2) Thickening: Stir and add ammonium persulfate to the corn starch solution, mix well, the corn starch solution thickens, heat up to 94~100°C, and keep the temperature for 5~15 minutes;

[0033] (3) Anti-water treatment: dissolve aluminum sulfate to obtain aluminum sulfate solution, and the mass fraction of the solution is 10%;

[0034] (4) One-time drying: Stir the above-mentioned aluminum sulfate solution into the thickened cornstarch solution, add water and stir to keep the solid content of the mixture in the rea...

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PUM

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Abstract

The invention relates to a preparation method of corrugated paper, which comprises the following steps: pulping 20-30 parts of corn starch, 1-5 parts of ammonium persulfate and 4-8 parts of aluminum sulfate, thickening, and carrying out water-repellent treatment, primary baking, surface sizing and secondary baking to obtain the finished corrugated paper product. In the invention, the starch sizing agent is coated on the surface of the semi-finished corrugated paper product, and the corrugated paper is subjected to secondary baking and is completely aged, thereby effectively enhancing the liquid-repellent performance of the final corrugated paper product and enhancing the water repellence of the corrugated paper.

Description

technical field [0001] The invention belongs to the field of pulping and papermaking, in particular to a preparation method of corrugated paper. Background technique [0002] Corrugated carton is a kind of commonly used transportation packaging. The corrugated cardboard used to make only carton is mainly composed of corrugated paper, face value and lining paper. Corrugated paper is generally set with 2 or 3 layers separated by core paper in the middle. 5-layer or 7-layer board. Because corrugated boxes are used as transport packaging, their water resistance and puncture resistance are required to be high. [0003] Corrugated paper is usually made of broad-leafed semi-fiber wood pulp or wheat straw pulp. In the preparation process of corrugated paper, it is usually used: pulping → pressure pump into the stock stabilization tank → water pressure difference drenching and water hanging → wool penetration → vacuum pump dehydration and drying → heating drying cylinder drying → f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/12D21H17/65
Inventor 陈永维
Owner 蓟县东赵乡福利造纸厂
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