Sizing agent for paper

A technology of sizing agent and glue, which is applied in the direction of papermaking, paper coating, water repellent addition, etc., can solve the problems of low weight, high strength, insufficient strength indicators such as compression resistance and tearing of paper, and achieve anti-corrosion High tear strength, good smoothness, good surface printing adaptability

Inactive Publication Date: 2014-06-04
NINE DRAGONS PAPER TAICANG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to save waste paper resources, nowadays, the development direction of various series of containerboard paper is low weight and high strength. However, the reduction in weight will inevitably lead to insufficient strength indicators such as compression resistance and tearing of the finished paper.
In order to improve the physical properties of c

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dissolve edible corn starch in water to form an aqueous starch solution with a mass fraction of 20%, add biological enzymes (industrial enzyme preparations) accounting for 0.005% of the starch mass, enzymatic treatment at 80-82 ° C for 15 minutes, and then heat to 130-135 Cook at ℃ for 0.5-1 minutes to inactivate the enzyme to obtain a glue solution, add polyvinyl alcohol with a mass of 1% of the glue solution, cationic styrene acrylate with a mass of 2% of the glue solution, and a mass of 1% of the glue solution. 2% of aluminum sulfate in the glue solution, 0.1% of the fatty acid ester in the glue solution, and 0.2% of the cationic yellow dye in the glue solution are mixed uniformly to obtain the sizing agent for paper of the present invention.

Embodiment 2

[0022] Dissolve edible corn starch in water to form a starch aqueous solution with a mass fraction of 25%, add biological enzymes (industrial enzyme preparations) accounting for 0.01% of the starch mass, enzymatic treatment at 83-85 ° C for 20 minutes, and then heat to 135-140 Cook at ℃ for 0.5-1 minute to inactivate the enzyme to obtain a glue solution, add polyvinyl alcohol with a mass of 2% of the glue solution, cationic styrene acrylate with a mass of 4% of the glue solution, and a mass of 2% of the glue solution. 4% of aluminum sulfate in the glue solution, 0.3% of the fatty acid ester in the glue solution, and 0.6% of the cationic yellow dye in the glue solution are mixed uniformly to obtain the sizing agent for paper of the present invention.

Embodiment 3

[0024] Dissolve edible corn starch in water to form a starch aqueous solution with a mass fraction of 23%, add biological enzymes (industrial enzyme preparations) accounting for 0.008% of the starch mass, enzymatic treatment at 80-85 ° C for 10 minutes, and then heat to 130-135 Cooking at ℃ for 0.5 to 1 minute to inactivate the enzyme to obtain a glue solution, add polyvinyl alcohol with a mass of 1.5% of the glue solution, cationic styrene acrylate with a mass of 3% of the glue solution, and a mass of 1.5% of the glue solution. 3% of aluminum sulfate in the glue solution, 0.2% of the fatty acid ester in the glue solution, and 0.4% of the cationic yellow dye in the glue solution are mixed uniformly to obtain the sizing agent for paper of the present invention.

[0025] After the sizing agent of the present invention prepared in the above example is used in papermaking, it can significantly improve the physical properties of the finished paper such as break resistance, ring ...

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PUM

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Abstract

The invention provides a sizing agent for paper, which is mainly prepared by mixing glue, polyvinyl alcohol, cationic styrene acrylate, aluminum sulfate and fatty acid ester, wherein the glue is prepared by the following steps: adding a biological enzyme into a 20-25 wt% starch water solution, carrying out enzyme digestion at 80-85 DEG C for 10-20 minutes, heating to 130-140 DEG C, and boiling for 0.5-1 minute to inactivate the enzyme; and the polyvinyl alcohol accounts for 1-2 wt% of the glue, the cationic styrene acrylate accounts for 2-4 wt% of the glue, the aluminum sulfate accounts for 2-4 wt% of the glue, and the fatty acid ester accounts for 0.1-0.3 wt% of the glue. The sizing agent is simple in composition and easy to prepare; and after being applied to paper, the sizing agent can obviously improve the paper quality, enhance the breaking resistance, tear resistance and moisture absorption resistance of the paper, so that the paper has favorable smoothness and strong adaptability to surface printing.

Description

technical field [0001] The invention relates to the field of papermaking, more particularly to a sizing agent for paper. Background technique [0002] In order to save waste paper resources, nowadays, the development direction of various series of containerboard paper is low grammage and high strength. However, the reduction of grammage will inevitably lead to insufficient strength indicators such as compression resistance and tearing of the finished paper. In order to improve the physical properties of containerboard such as burst resistance, ring pressure, folding resistance, water absorption, and smoothness, and at the same time improve the comprehensive performance of paper such as surface printing adaptability, it is necessary to comprehensively adjust the gluing formula, and the current surface sizing agent These requirements are usually not met. Contents of the invention [0003] In order to overcome the above-mentioned problems in the prior art, the present invent...

Claims

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Application Information

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IPC IPC(8): D21H21/16D21H19/54D21H19/60
Inventor 曹超
Owner NINE DRAGONS PAPER TAICANG LTD
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