THE SCIENTIFIC FACTS
20 years ago we learned that deer have the visual physiology to see Short Wavelength Light many times better than humans, but they have little sensitivity to Long Wavelengths like Hunter Safety Orange if made without UV brighteners. The original work was started at the University of Georgia in August of 1992 to measure the sensitivity of living deer eyes to different wavelengths of light. The results were conclusive that deer see and use light that humans don’t see but the response by skeptics and lay persons was that...
“They would believe it when we find deer
that can talk”
20 years later those “Talking Deer” have been found by Dr. Bradley Cohen and a team of researchers at the University of Georgia Warnell School of Forest resources, which included Dr. Karl V. Miller who had been involved in the original study. They created a device to train deer to indicate sensitivity to light by choosing where to go for food. This device enables researchers to test a wide range of visual discriminations. Behavioral research has confirmed that deer do indeed see ultraviolet powered optical brighteners far superior to humans, but are unable to see red and orange as well as we humans, “unless” these colors are powered by UV brighteners.
FACTS ABOUT UV BRIGHTENERS
UV Laundry brighteners make camo and blaze orange appear as bright glowing blue to deer.
New untreated blaze orange and camo clothing can contain UV brighteners and will appear to deer as bright glowing blue.
UV Brighteners cannot be washed away with any detergent, not even Sport-Wash®.
UV brighteners can be easily detected with a 350 BLB Florescent light source.
U-V-Killer® permanently eliminates the bright blue glow by covering the brighteners so the UV energy cannot reach them.
One bottle of U-V-Killer® treats one insulated suit or two thin suits of camo or blaze orange.
U-V-Killer® Camo appears to deer as brown patterns but appears to humans as solid Blaze Orange.
U-V-KILLER APPLICATION TIPS AND FAQ
Important: First wash garment in Sport-Wash. Scent-Free Sport-Wash rinses 100% removing all traces of old soap residue, grease, oil, dirt, and sizing that would prevent U-V-Killer from forming a bond with the fabric. Other soaps do not rinse out and they leave behind residue. Sport-Wash is safe for all fabrics and dyes.
Spray Dry Garments. Spray till surface is covered. Imagine you are applying a color and don't want the former color to show thru. Brushing with a small brush will make coverage more uniform. A ultraviolet (UV) light can reveal "missed" spots even while U-V-Killer is still wet. U-V-Killer extends the life of fabric five times from sun rot.
Fleeced or Insulated Garments. Extra care is required. You need to apply only a thin invisible coating. Spray a small area at a time. Use small stiff brush to raise froth on surface. Froth or foam bubbles keep the UV absorbing dye out on the visible surface while it dries. (This prevents the dye from soaking deep into the fabric where it will have no optical value). Deep soaking not only wastes U-V-Killer but will cause stiffness in heavy fabrics.
You may check the effectiveness and completeness of your application with a fluorescent black light. The bulb should appear dark VIOLET when not lit and will be labeled "BLB". These are often used in bug zappers and we have a battery powered pocket unit available. Most paper contains UV brighteners and you can spray a spot to see how it will darken where U-V-Killer is applied.
All Fluorescent Orange has UV-Brighteners and most of it is water repellent. We have enhanced the wetting power of U-V-Killer for easier, more permanent application on Blaze Orange and other water repellent fabrics. You can be safe, legal, and successful.
Treated garments may be worn when completely dry, but 72 hours of adequate ventilation is required for the bond to reach full durability and for the garment to be scent free. Re-washing, waterproofing, and cover scent applications should be delayed for this 72 hours. The U-V-Killer treatment is designed to be permanent, and on most fabrics it will endure for the life of the garment.
A single washing in commercial detergents, fabric softeners, and or "Color Safe" bleach (while not removing the treatment) will render the U-V-Killer useless by depositing new brightener dyes on top of it.
Always wash a load of non-hunting clothes in Sport-Wash prior to washing your treated camo & blaze orange in order to remove residual brighteners from your washer and dryer. It is recommended that you confirm the absence of brighteners each season using a UV light.
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