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Production method of surface sizing agent, sizing agent and use thereof

A technology of surface sizing agent and sizing agent, which is applied in papermaking, water repellent addition, textiles and papermaking, etc. It can solve the problems of stiffness and insufficient surface strength and water resistance of cardboard, and achieve quality Stability, low preparation cost, and the effect of improving product quality and grade

Active Publication Date: 2009-05-13
SHANYING INT HLDG CO LTD
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Problems solved by technology

[0003] The object of the present invention is to provide a kind of surface sizing agent that improves the stiffness of paper and the ring crushing strength of cardboard, it can overcome the stiffness of paper after sizing in the existing surface sizing agent and the ring crushing strength of cardboard, surface sizing agent. The shortcomings of insufficient strength and water resistance, while reducing the preparation cost of surface sizing agents, simplifying the preparation process, and improving the glue quality of surface sizing agents

Method used

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  • Production method of surface sizing agent, sizing agent and use thereof

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Embodiment Construction

[0013] A kind of starch surface sizing agent manufacture method, see figure 1 , using starch as a raw material, and the starch can be any of tapioca starch, corn starch, potato starch and the like. The process steps are: 1. Dissolution of starch: the starch is transported to the dissolution tank through a screw conveying device with metering function, and 30-40 ° C water is added in proportion to the dissolution tank to dilute to a concentration of about 25%. Add invertase in the amount of 0.2-0.4KG / ton of starch. 2. Starch conversion: The diluted starch slurry is transported to the conversion tank, and steam is introduced into the tank body. The steam is added from the bottom of the tank body through a steam adding device with a Venturi structure, which can ensure that the overall tank The starch slurry in the body is heated quickly and evenly, and the noise caused by adding steam can be avoided. In order to achieve the ideal conversion effect, a vertical stirrer is installe...

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Abstract

The invention relates to a starch surface glue sizing agent, a method for producing the same and application thereof. The method is as follows: starch is subjected to dissolving, conversion, enzyme deactivation, storage and feeding. The glue sizing agent produced by the method has the characteristics of stable quality, low preparation cost and the like.

Description

technical field [0001] The invention relates to the technical field of papermaking surface sizing, in particular to a surface sizing agent capable of improving the stiffness and ring crush strength of corrugated base paper or cardboard paper for packaging. Background technique [0002] For corrugated base paper or cardboard paper, in order to obtain higher ring compressive strength, surface strength and water resistance, surface sizing must be used. In recent years, some domestic manufacturers have also begun to use surface sizing technology to improve the environmental protection of paper. Physical indicators such as compressive strength, surface sizing agents used to increase strength are roughly divided into natural polymer surface sizing agents and synthetic polymer surface sizing agents. Natural polymer surface sizing agents include cationic starch, oxidized starch, phosphate starch, hydroxypropyl starch, animal glue, modified cellulose, etc.; synthetic polymer surface ...

Claims

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Application Information

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IPC IPC(8): D21H21/16D21H17/28
Inventor 孙后年
Owner SHANYING INT HLDG CO LTD
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