Method of increasing the SPF rating and compounds suitable for increasing the SPF rating of fibre or fabric

摘要

A method of increasing the SPF rating of a fibre or fabric, comprising the steps of providing a UVR absorber, applying the UVR absorber to a fabric having a density of less than 200 grams per square metre, whereby the UVR absorber is attached to the fibre and an application of less thant 3 % UVR absorber on weight of fibre produces an SPF rating of greater than 20 for the UVR absorber and fabric combination.