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A kind of surface sizing agent composition based on diatomite and its application

A technology of surface sizing agent and composition, applied in the field of papermaking, can solve the problems of affecting the use of starch, affecting the brightness and whiteness of printing paper, etc.

Active Publication Date: 2016-05-18
内蒙古东盛硅藻土科技创新产业园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once calcium chloride affects the pH, it will affect the use of starch in the sizing agent, and finally affect the brightness and whiteness of the printing paper

Method used

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  • A kind of surface sizing agent composition based on diatomite and its application

Examples

Experimental program
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Effect test

Embodiment

[0036] The sizing agent composition is prepared according to the formula described in table 1 (starch is potato starch, and all are 100 parts by weight), and the sizing agent composition is prepared into a slurry with a solids content of 20 with distilled water, and then used from Taicang Yongyi Machinery Equipment Co., Ltd. purchased an X99 sizing machine to apply double-sided sizing in an amount of 4.0 gsm to the printing base paper with a grammage of 14 g commercially available from Nanning Langbaisite Paper Co., Ltd. And measure the CIE whiteness and ISO brightness of the printed paper after sizing, repeat each experiment 5 times, and calculate the average value. In the examples, the white dye is 5-furyl-1,3-diphenylpyrazoline, the complexing agent is hydroxypropyl cellulose, and the particle diameters of diatomaceous earth and bentonite are not greater than 20 microns.

[0037] Formulation and performance thereof of various sizing agent compositions of table 1

[0038] ...

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Abstract

The invention relates to a surface sizing agent composition based on kieselguhr and an application thereof. The composition is prepared from starch, calcium chloride, a complexing agent, white dye, kieselguhr and bentonite. The invention further relates to a method for making printing paper. According to the method, the composition is adopted for conducting surface sizing on the printing paper. The invention further relates to the application of the composition to making the printing paper. According to the composition, the kieselguhr or the combination of the kieselguhr and the bentonite is adopted for effectively restraining whiteness and brightness of printing paper made through sizing of a calcium chloride-starch sizing agent.

Description

technical field [0001] The present invention relates to the field of papermaking. In particular, the present invention relates to papermaking sizing compositions and their use in papermaking. Background technique [0002] To improve printing properties of printing papers such as ink density and drying time, many paper manufacturers add cationic metals to paper sizing agents. Among them, calcium chloride is often used to improve printing density and drying time. However, calcium chloride has been found to reduce the brightness and whiteness of paper, for example calcium chloride can quench stilbene-based optical white dyes, thereby reducing the brightness and whiteness of paper. Especially calcium chloride will affect the pH of the sizing agent, resulting in the use of starch in the sizing agent, because too high a pH will make the starch yellow, and too low a pH will cause the starch to precipitate. Once calcium chloride affects the pH, it will affect the use of starch in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16D21H19/40D21H19/64D21H19/54D21H21/28D21H19/52
CPCD21H19/52D21H19/54D21H19/64D21H21/16
Inventor 文启东崔俊峰文博邹晓虎
Owner 内蒙古东盛硅藻土科技创新产业园有限公司