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Method for treating surface of synthetic calcium silicate filled offset printing paper

A technology for offset printing paper and surface treatment, which can be used in fiber raw material treatment, papermaking, paper coating, etc., and can solve problems such as low surface strength

Active Publication Date: 2013-01-30
DATANG INT POWER GENERATION +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a surface treatment method for synthetic calcium silicate filled offset printing paper, aiming at the problems of loose and porous synthetic calcium silicate filled offset printing paper, strong absorbency and low surface strength, select effective The composition of the sizing solution makes the synthetic calcium silicate filled offset printing paper have high surface strength and suitable ink absorption

Method used

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  • Method for treating surface of synthetic calcium silicate filled offset printing paper
  • Method for treating surface of synthetic calcium silicate filled offset printing paper

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Embodiment 1

[0019] Surface sizing solution composition: 70% surface sizing starch, 30% polyvinyl alcohol (PVA1788), which is made into an aqueous solution with a solid content of 7% surface sizing solution. Apply the sizing solution on the surface of the synthetic calcium silicate plus filled offset printing paper by means of a surface sizing machine, and control the surface sizing amount to 1.5g / m 2 . The sized paper is dried and calendered to obtain the finished offset printing paper.

[0020] The properties of the offset printing paper before and after the above surface treatment are shown in Table 1.

[0021] Table 1

[0022]

Embodiment 2

[0024] Composition of surface sizing solution: 70% surface sizing starch, 28% polyvinyl alcohol (PVA1799) and 2% AKD. Each composition was prepared with water to form an aqueous solution with a solid content of 10% surface sizing solution. Apply the sizing solution on the surface of the synthetic calcium silicate plus filled offset printing paper by means of a surface sizing machine, and control the surface sizing amount to 2.0g / m 2 . The sized paper is dried and calendered to obtain the finished offset printing paper.

[0025] The properties of offset printing paper before and after surface treatment are shown in Table 2.

[0026] Table 2

[0027]

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Abstract

The invention relates to a method for treating the surface of synthetic calcium silicate filled offset printing paper. The method comprises the following steps of sizing surfaces of prepared synthetic calcium filled silicate offset printing paper sheets by using a sizing solution which at least comprises a macromolecular compound with a film-forming property and surface sizing starch. According to the method, the surfaces of the paper sheets are treated by a composite sizing agent with relatively high water resistance, so that problems that the paper is low in sizing degree and high in absorption performance can be effectively solved; and the therefore, the synthetic calcium silicate filled offset printing paper has relatively high surface strength and proper ink absorption performance.

Description

technical field [0001] The invention relates to a surface treatment method for synthetic calcium silicate filled offset printing paper, which belongs to the field of papermaking. Background technique [0002] Offset printing paper is referred to as offset printing paper, and its weight is generally 60~150g / m 2 , is a kind of high-grade paper suitable for offset printing, requiring the paper surface to be white, smooth, free of impurities, with good surface strength, suitable ink absorption and shape stability. Therefore, there are relatively high requirements for the selection and use of fillers in the manufacture of offset printing paper. [0003] With the development of the electric power and energy industry, it has driven the research and development of surrounding fields. Especially with the construction and use of large-scale power plants, the comprehensive utilization technology of waste such as fly ash discharged from power plants is also constantly being developed....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/14
Inventor 张毅陈刚孙俊民张战军闫绍勇王振根宋宝祥高志军王成海魏晓芬
Owner DATANG INT POWER GENERATION
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