Articles made with thermoplastic polymers are often required to have an improved and brilliant white appearance. PP, PA, PET fibres, whether colourless or white-pigmented, can be produced in brighter and more attractive shades by incorporating selected additives based on optical brighteners. Optical brightner masterbatch enhance the whiteness and compensate the original inherently yellowish shade of many thermoplastic polymers.
Optical brighteners convert ultraviolet (UV) light waves to strengthen blue light and minimize the amount of yellow light to make the things appear whiter. So they do not get your clothes any cleaner, but make them appear whiter and brighter.