Preparation method of sun-screening agent for decorative paper production

A technology of sunscreen and decorative paper, which is applied in the direction of adding anti-aging agent for paper, paper, paper making, etc. It can solve the problems of high cost, poor decorative paper, and poor use effect, and achieves simple operation, good preparation cost, and modified uniform effect of the process

Active Publication Date: 2017-08-04
HEBEI MILSON TITANIUM DIOXIDE
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Problems solved by technology

Among the sunscreen agents added to the existing decorative paper, LR952 and Ti-PureR796+ are domestically and internationally recognized titanium dioxide for decorative paper production, respectively, and are well-known brands in China and the world respectively. The effect is good, but the cost is relatively expensive; Uncoated s

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  • Preparation method of sun-screening agent for decorative paper production
  • Preparation method of sun-screening agent for decorative paper production
  • Preparation method of sun-screening agent for decorative paper production

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Embodiment Construction

[0020] The invention relates to a method for preparing a sunscreen agent for decorative paper production. The preparation process of the method is based on the mechanochemical intercalation of kaolinite, using kaolinite, polyethylene glycol, and nano-titanium dioxide as raw materials. After being mixed with desalinated water to form a slurry, it is ground, dispersed, aged, dried and crushed in sequence to finally obtain a sunscreen that can be used to improve the sunscreen and anti-aging performance of decorative paper. The preparation method of the sunscreen specifically includes the following steps:

[0021] A. Grinding

[0022] Mix kaolinite, polyethylene glycol, and nano-titanium dioxide with a mass ratio of 100:11:11 in desalted water to form a slurry with a concentration of 650g / L. The particle size of kaolinite is ≤2μm, and polyethylene glycol is nano-titanium dioxide. It is an excellent dispersant for pigment titanium dioxide in the process of dispersion and papermakin...

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Abstract

The invention relates to a preparation method of sun-screening agent for decorative paper production, and belongs to the technical field of sun-screening agent. The sun-screening agent loaded with nanometer titania is prepared by taking kaolinite, polyethylene glycol and nanometer titania as raw materials, and mixing materials in a desalting water and forming slurry; delivering the slurry to a grinding machine to grind, wherein the grinding process includes preparation of nanometer kaolinite, , dispersion of nanometer titania, and loading of nanometer titania; realizing intercalation and modification of kaolinite by nanometer titania through a mechanical force chemical intercalation process of the kaolinite; then performing dispersing, aging, drying, breaking and other procedures to obtain the sun-screening agent. The preparation process is free from waste water, the technique device is simple and the operation is also simple; the nanometer titania is nanometer TiO2 aggregate for the SCR denitration catalyst carrier; the technical and environment protection problems of preparation of nanometer TiO2 are eliminated, the production process is simplified; the sun-screening agent for decorative paper production can improve the sun-screening and anti-aging performances of the decorative paper.

Description

technical field [0001] The invention belongs to the technical field of sunscreen agents, and in particular relates to a preparation method of a sunscreen agent for decorative paper production. Background technique [0002] Decorative paper sunscreen is a special additive to improve the light stability of decorative paper. The product can be used directly in papermaking in the form of slurry, or it can be mixed with decorative paper pigment titanium dioxide in the form of solid powder to improve the light shielding of decorative paper pigment titanium dioxide. performance. Among the sunscreen agents added to the existing decorative paper, LR952 and Ti-PureR796+ are domestically and internationally recognized titanium dioxide for decorative paper production, respectively, and are well-known brands in China and the world respectively. The effect is good, but the cost is relatively expensive; Uncoated sulfuric acid rutile TiO 2 The cost is low, but the decorative paper produce...

Claims

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Application Information

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IPC IPC(8): D21H21/14D21H17/69D21H17/68D21H17/67D21H17/34D21H17/66D21H17/64
CPCD21H17/34D21H17/64D21H17/66D21H17/675D21H17/68D21H17/69D21H21/143
Inventor 张建平张川张千
Owner HEBEI MILSON TITANIUM DIOXIDE
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