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Preparation method of surface sizing agent

A technology for surface sizing agents and additives, which is applied in the field of surface sizing agents for improving the strength of corrugated paper, can solve the problems of insufficient ring compressive strength, bursting resistance and water resistance, etc., achieve simple preparation methods, improve ring compressive strength, The effect of simple production process

Active Publication Date: 2013-11-27
安徽浙源再生纸业科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-strength surface sizing agent, which can overcome the shortcomings of the existing surface sizing agents, such as insufficient ring compressive strength, burst resistance, and water resistance. At the same time, the surface sizing agent The production process is simple and the production cost is cheap

Method used

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Embodiment Construction

[0018] The preparation method of surface sizing agent of the present invention may further comprise the steps:

[0019] (1) Treatment of starch: Stir the starch evenly, then screen the starch, and the fineness of the starch is less than 98 mesh;

[0020] (2) Oxidized starch: transport the screened starch to the reaction tank, and add potassium permanganate and nitric acid into the reaction tank at the same time;

[0021] (3) Dissolution of starch: transport oxidized starch to the dissolving device, add water to the dissolving device at the same time, dilute to a concentration of about 25%, and obtain starch slurry;

[0022] (4) Gelatinization: transfer the starch slurry to the reaction kettle, heat the temperature to 95°C-98°C, and keep the temperature for 25-30 minutes to obtain the starch glue;

[0023] (5) Storage: transport the starch glue solution to the storage tank, then add warm water to the storage tank at the same time, the temperature of the water is 30°C-40°C, dil...

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Abstract

The invention relates to a preparation method of a surface sizing agent. The surface sizing agent is prepared by the processes of treating, oxidizing, dissolving and gelatinizing starch, storing, adding auxiliaries and sizing. According to the preparation method disclosed by the invention, the sizing effect on corrugated paper is improved by oxidizing the starch and adding the auxiliaries, and the overall performances of the corrugated paper are greatly improved; and simultaneously, the operation process flow is simple and convenient, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of papermaking surface sizing, in particular to a surface sizing agent for improving the strength of corrugated paper. Background technique [0002] For the improvement of corrugated paper ring compressive strength, burst resistance and water resistance, a high-strength surface sizing agent is needed. Now most domestic manufacturers mainly use natural polymer surface sizing and synthetic surface sizing methods for surface sizing. There are two kinds of polymer surface sizing agents. Although they can improve the ring compressive strength, burst resistance and water resistance of corrugated paper, the preparation steps of these sizing agents are cumbersome and costly. Therefore, it is necessary to provide a surface sizing agent that can solve the above problems. very necessary. Contents of the invention [0003] The purpose of the present invention is to provide a high-strength surface sizing agent, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/16C08B31/18
Inventor 吴文勇
Owner 安徽浙源再生纸业科技有限公司
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