Are optical brighteners harmful to the body? _Kain Industrial Additives

Before understanding fluorescent whitening agents, let’s first understand fluorescence. Fluorescence is a luminescent phenomenon of photoluminescence. When a substance at room temperature is irradiated by incident light of a certain wavelength (usually ultraviolet or band), the emitted light with this property is called fluorescence. Many fluorescent substances will disappear immediately once the incident light stops.…