About The Ultraviolet Protection Factor of Naturally-pigmented Cotton
The Ultraviolet Protection Factor of Naturally-pigmented Cotton- Technical paper presenting a study aiming to determine the ultra-violet protection values (UPF) of naturally pigmented cotton in the shades green, tan and brown, and the effect of light exposure and laundering on the sun blocking properties of naturally pigmented cotton. From the Journal of Cotton Science. Authors: Gwendolyn Hustvedt and Patricia Cox Crews.
