What is the magical function of paint whitening agent OB?

Experienced paint and paint toning masters all know that in the process of paint and paint toning, by using the slightly transparent characteristics of paint film, choosing fluorescent whitening agent and appropriate background color can make the color of the top coat more vivid than that of the original paint. This is a color produced by superimposing the background color and the primary color according to the principle of reflection and absorption of natural light, which is called "color penetration" in paint engineering. For example, yellow primer can make red brighter, gray primer can make red redder, positive blue primer can make black darker and brighter, and aqua blue primer can make white cleaner and whiter. Cream, pink, ivory, sky blue, white should be used as primer, etc.

Due to this "color penetration" characteristic of coatings and paints, the application of our paint whitening agent OB in the paint color mixing process provides a great opportunity. Through the experiment, it can be found that if we add a certain amount of fluorescent whitening agent OB to the primer (the added amount is about 3/10,000), the foil effect of the primer on the top coat will immediately show magical effect. For example, if the whitening agent OB is added to the yellow primer, then the set-off red top coat will not only be more vivid in color, but also naturally show a gem brilliant red color with a strong three-dimensional sense. Similarly, if whitening agent OB is added to the positive blue primer, the diamond black of the black finish will be fuller and firmer, and it will have a strong three-dimensional feeling and sense of security.

This color matching technology has been kept absolutely secret by Mitsubishi and Honda automobile manufacturers in Japan as the key technology of automobile production 20 years ago, but now it has been widely used in various automobile paint matching.

Of course, the magical effect of our fluorescent whitening agent OB boutique in color matching of paints and coatings is more than that. This needs to be further explored in our paint production practice.