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Coating for papermaking, preparation method thereof, and coated paper using same

A technology of coatings and mass parts, applied in paper coatings, papermaking, textiles and papermaking, etc., can solve the problems of affecting production runnability, poor dispersion, poor uniformity of papermaking coatings, etc., achieve effective dispersion regulation, provide antibacterial function, good compatibility effect

Active Publication Date: 2016-07-06
GOLD EAST PAPER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nano-antibacterial materials are prone to agglomeration and poor dispersion in paper-making coatings, which not only greatly reduces the anti-bacterial effect, but also causes poor uniformity of paper-making coatings, affecting production runnability

Method used

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  • Coating for papermaking, preparation method thereof, and coated paper using same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The preparation method of the above-mentioned papermaking coating comprises the following steps: firstly add 20-40 parts by absolute dry mass of acrylic latex to the container, and then slowly add 50-80 Parts by mass of nano-titanium dioxide powder, while adding 2.4-6.4 parts by mass of ethanol dropwise (preferably in the form of an aqueous ethanol solution); stir evenly (about 40 minutes) and add 0.3-1.0 parts by mass of dispersant (silicon NaOH); after stirring evenly (about 10min), add 20-50 parts by mass of light calcium carbonate to the container; after stirring evenly (about 20min), selectively add NaOH solution to the container to adjust the pH value between 8 and between 9.

[0018] A coated paper comprises base paper and a coating coated on the surface of the base paper. The coating is formed by coating the surface of the base paper with the above-mentioned papermaking coating and drying. The coating amount of the papermaking coating is 10-20g / m 2 , and form ...

Embodiment 1

[0022] Add acrylic latex (solid content 35%), nano-titanium dioxide dry powder, ethanol solution (mass percentage concentration 80%), sodium silicate dispersant, needle-like light calcium carbonate in the container, add NaOH solution after stirring to adjust the pH value to 8.5, that is, the paper coating is prepared. Please refer to Table 1 for specific experimental parameters and conditions.

[0023] The papermaking coating prepared in Example 1 was coated on the base paper surface and dried to obtain a coating.

Embodiment 2

[0025] Refer to the method and steps of Example 1 to configure the papermaking coating and coat the base paper. Please refer to Table 1 for different experimental parameters.

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Abstract

The invention discloses a papermaking coating which comprises 20-40 absolute dry mass parts of acrylate latex, 50-80 mass parts of nanometer titania, 20-50 mass parts of light calcium carbonate, 2.4-6.4 mass parts of ethanol and 0.3-1.0 mass part of a dispersing agent, wherein the dispersing agent is sodium silicate; the particle size of acrylate in the acrylate latex is 30-60nm; the particle size of the nanometer titania is 20-40nm. The invention also provides coated paper using the papermaking coating and a method for preparing the papermaking coating. In the papermaking coating, the acrylate latex of which the particle size is close to that of the nanometer titania can be well combined with titania particles, ethanol and titania have high compatibility and have effective dispersing and regulating effects, so that the titania can be uniformly dispersed in the coating as much as possible. Therefore, the nanometer titania in the papermaking coating is uniformly dispersed.

Description

technical field [0001] The invention relates to a paper-making coating with antibacterial function and a preparation method thereof, and coated paper using the paper-making coating. Background technique [0002] Paper coatings with antibacterial function usually contain nano antibacterial materials. However, nano antibacterial materials are prone to agglomeration and poor dispersion in paper coatings, which not only greatly reduces the antibacterial effect, but also causes poor uniformity of paper coatings and affects production runnability. Contents of the invention [0003] In view of this, it is necessary to provide a kind of nano antibacterial material that can disperse the papermaking coating well. [0004] In addition, it is also necessary to provide a coated paper to which the above-mentioned papermaking coating is applied. [0005] In addition, it is also necessary to provide a method for preparing the above-mentioned papermaking coating. [0006] A papermaking ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/38D21H19/46D21H19/58D21H21/08
Inventor 胡华雷
Owner GOLD EAST PAPER JIANGSU
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