I think as long as you use unscented detergent with zero UV brighteners you'll be good to go.
Dan
Mr. Meany
If its not true that deer can see UV light then why are you concerned about using detergent with zero UV brighteners ?
Love ya like a brother.
I bought a small hand held UV checking light (black light) a couple weeks ago because I was wondering about UV light & whitetails.
I tested my Gray Wolf Woolens wool coat, Day One Camo pack and (Sportsmens Guide) camo bibs.
The first two showed nothing the camo bibshad a brightblue color to them (see picture below).
http://www.sportsmansguide.com/net/cb/cb.aspx?a=227418
The bibs were boughtthis lastwinter and haven't been washed yet so the blue didn't come from detergent with UVbrighteners in it.
I dont know if UV killers work but I will check allmy hunting clothes with the light and not wear anything that gives the blue glow as an outter garment.
I guess my piont is that just not using detergent with brighteners isn't always going to keep the UV color away from your hunitng clothes.
They may be made (like someone else has said) in china, etc andwith material that already has the brighteners in them.
Another case of getting what you pay for ! ! !
Had to put the camera inches from the bibs to get the blue to show but it was very visible to the eye.