Let me show you the difference between fluorescent brightener and titanium dioxide

We are all familiar with fluorescent whitening agent whitening, titanium dioxide can also be whitening agent, then, what is the difference between fluorescent whitening agent and titanium dioxide whitening principle? Today Shanghai enmai will take you to know the difference between titanium dioxide and fluorescent whitening agent?

 

Whitening principle difference:

 

Fluorescent brightener is an organic compound which can improve the whiteness of plastics, fiber fabrics and paper. Also known as optical brightener, fluorescent brightener. Fibers and fabrics are often yellow due to color impurities. In the past, chemical bleaching was used to decolorize, but now the method of adding fluorescent whitening agent to the products is used. The function of fluorescent whitening agent is to change the invisible ultraviolet radiation absorbed by the product into violet blue fluorescent radiation, and complement the original yellow radiation into white light, so as to improve the whiteness of the product under sunlight.

 

Titanium dioxide is a very good white pigment, which has the functions of reinforcement, anti-aging and filling. It is often used in rubber products, plastic pipe profiles. Titanium dioxide is added into white and color rubber products. Under the sunlight, it is resistant to sunlight, cracking, discoloration, high elongation and acid-base resistance. Titanium dioxide for rubber is mainly used for automobile tires, rubber shoes, rubber floor, gloves, sports equipment, etc. it is mainly anatase.

 

Although the whitening principles of fluorescent whitening agent and titanium dioxide are different, many manufacturers use them at the same time in the process of practical application. Titanium dioxide is usually used in a large amount, about 5kg per ton, but the whiteness is not glossy. At this time, a small amount of fluorescent whitening agent needs to be added to whiten through optical complementary color, The white brightness of the product produced in this way will be improved a lot, and the effect like this is usually not achieved by titanium dioxide! So, that's the difference!