Anti-ultraviolet fluorescent whitening agent emulsion

Abstract

The invention provides an ultraviolet-resistant fluorescent whitening agent emulsion, which is composed of the following components: 15-30 parts of fluorescent whitening agent, 20-40 parts of water, 8-12 parts of emulsifier, 5-8 parts of ultraviolet light absorbing agent and 60-80 parts of petroleum ether, the structural formula of the fluorescent whitening agent is as shown in formula (I), and the emulsifier is composed of polyethylene glycol and sodium dodecylsulfonate with a mass ratio of 1:1-3 composition, the molecular weight of the polyethylene glycol is 400-600, and the ultraviolet absorber is 2-hydroxy-4-acrylate benzophenone or 2-methyldibenzoylmethane. The antistatic fluorescent whitening agent emulsion provided by the present invention has the advantages of stable storage and uniform dispersion, can be directly applied to the surface of the product by spraying, is convenient to use, and effectively avoids the decomposition and failure of the whitening agent due to post-processing of the product. At the same time, it can improve the anti-ultraviolet effect of polymer materials.

Description

technical field [0001] The invention relates to a fluorescent whitening agent composition, in particular to a UV-resistant fluorescent whitening agent emulsion. Background technique [0002] Fluorescent whitening agent, also known as white dye, can improve the whiteness and luster of the substance. It is the product with the best heat resistance among all whitening agent products. It not only has high decomposition temperature, good whiteness, and small dosage, but also has a The additives in it have good compatibility, and are widely used in textiles, printing and dyeing, papermaking, plastics, paints, and decorative materials. [0003] The whitening and brightening effect of fluorescent whitening agents on material colors is a physical effect. It absorbs the invisible light in the near-ultraviolet band of sunlight and emits high-intensity blue light in the visible light band, which not only makes up for white objects with yellow heads. The blue light in the reflected ligh...

AI Technical Summary

Problems solved by technology

Due to its small amount of addition, it is difficult to disperse evenly in the substrate, and it is easy to agglomerate, resulting in poor whitening effect

For products that only need surface whitening, blending the fluorescent whitening agent into the masterbatch will undoubtedly increase the amount of whitening agent and increase the production cost. At the same time, it is easy to cause the whitening agent to decompose and fail in the post-processing of the product.

[0006] In addition, polymer products tend to absorb ultraviolet rays in the sun during use, resulting in aging and discoloration of the product, which not only affects the appearance of the product, but also affects the performance of the product. Therefore, it is necessary to provide a fluorescent whitening agent with anti-ultraviolet effect

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