USE OF DETERGENT COMPRISING A FLUORESCENT WHITENING AGENT ABSORBING 280-400 NM LIGHT TO IMPROVE SUN PROTECTION FACTOR OF TEXTILE MATERIAL

摘要

The present invention relates to a method for the improvement of the sun protection factor (SPF) of textile fiber material, comprising applying to the textile fiber material a detergent comprising at least one fluorescent whitening agent, which absorbs radiation in the wavelength range 280-400 nm, preferably by washing the textile fiber material with a detergent containing said fluorescent whitening agent.