Qingzhou City Dehai Fine Chemical Plant

An optical brightener is an organic compound that absorbs ultraviolet light and excites blue or blue-violet fluorescence. The fluorescent whitening agent adsorbs visible light that is incident on the object while reflecting The absorbed ultraviolet light (wavelength from 300nm to 40Onm) is converted into blue or blue-violet visible light, and the blue and orange complement each other, thus eliminating the orange color in the object matrix and making it appear white. On the other hand, since the emissivity of the object to the light is increased, the intensity of the emitted light exceeds the intensity of the original visible light projected onto the object to be treated, so that the whiteness of the object is increased by the eye, thereby achieving whitening and increasing. Brilliant purpose. From a color science point of view, light that produces an achromatic (no hue) visual response, commonly referred to as white light. The wavelength of visible light ranges from 400 to 760 nm, which is only a narrow segment of the solar spectrum.

It is often mistaken for white light to be the sum of all wavelengths of light in the visible spectrum. In fact, white light of a given whiteness can be produced in two or more monochromatic mixed lights, and monochromatic mixed light containing two wavelength components is also White light can be formed and the colors of the two lights are referred to as complementary colors.