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Tuesday 20 September 2016

Coldblack, Reflect The Sun With UV Protector


After wrote the article about trisuit, i had interest in coldblack technologies and decided to digging some information about that. After do some digging in google, here this info i can found. This tech claims can reflect heat rays and gave a minimum UPF 30 protection when applied in any colors (dark color included) of textiles. Hmm...looks very promising. Let see the detail below.

Coldblack is a finishing technology from Schoeller designed for textiles that are exposed to sunlight over extended periods. Coldblack prevents the textile from heating up and provides reliable protection from UV rays. For this twofold sun protection, coldblack® combines unusual features: absorption and reflection.


How it works?


Coldblack is both sun reflector + UV protector. Dark textiles absorb both the visible and invisible part of sunlight and consequently absorb warmth. Coldblack reduces this absorption in all types of textiles and therefore prevents dark colors from heating up. The result is a tangibly better heat management. For clothing, this effect means that the wearer perspires less, feels better as a result and enjoys improved performance capacity.

Light colors, in particular, which are often worn in summer and therefore increasingly exposed to sunlight, provide only poor protection from harmful UV rays. The Coldblack technology guarantees a UPF (Ultraviolet Protection Factor) of at least 30 (it depends on the structure, thickness and material composition of the fabric.) for all colors and fabrics, without affecting the feel or look of the goods. This means that fabrics with Coldblack make an effective contribution to protecting the wearer from UV rays.


Whats in the real world?


Let see a review from Runnersworld. The author compared T-shirt with coldblack tech and T-shirt without coldblack tech.

"Armed with an infrared thermometer, I laid out a black shortsleeve and a light blue sleeveless shirt, both treated with Coldblack—the company's running line comes in a number of colors beyond black. Staked to the ground alongside those were a black Adidas tech shirt and a plain white, 100 percent polyester tech tee—both had been worn and washed many times in the past few years, but neither had ever had any treatment. After 10 minutes of exposure to the sun's rays, I took temperature readings of each shirt. I repeated this process three more times over five minutes. Here are the results:
Minutes Exposed to Sun
10111516
Black Under Armour Coldblack89.7° F90.9° F97.6° F95.3° F
Black Adidas shirt97.8° F100.0° F107.1° F103.1° F
Blue Under Armour Coldblack83.2° F89.8° F91.0° F90.2° F
White Polyester Tee71.3° F73.4° F73.9° F74.4° F
One its not enough, so here's the review form runningtowork:

"The ColdBlack t-shirt is immediately noticeable as being thicker (and stretchier) than the average technical t-shirt. This should make it hotter which goes against its claim to keep you cooler, right? Well, the answer is no. Not once in all the miles put in did I feel like I was really over-heating, even on the 16km trail run on the hottest day. The t-shirt does all the usual wicking tasks, but sweat wasn’t a major issue on the runs and the ‘cooling’ properties of the t-shirt must have worked. I didn’t once feel as if I was over-heating from the sun during the hot spell, although to be fair I’m not sure if a t-shirt can ever be a complete ‘cure’ against that. At some stage I’m sure I’ll overheat whilst wearing it, due to exertion rather than the weather!"

Two still not enough? Here's the third review from policemag:

"I'll start with the polo. The proprietary ColdBlack material was named one of Popular Science's "Top Innovations of 2008" and provides several benefits over traditional fabric. The 100% polyester fabric breathes very well and wicks moisture away from the body to keep you cool. ColdBlack technology reflects up to 80% of the sun's rays and blocks UV light, helping the cooling process while protecting you from the sun's harmful rays. That sounds like a lot of advertising claims, and I have to admit I thought the shirt's performance was probably exaggerated, but I found out it does what Vertx says it will do. I wore this shirt in my daily polo rotation for several weeks and was very impressed. My example was black, and I stood outside in it in the Arizona summer sun. If ever a polo with these claims would fail, it would be black and tested on an Arizona July day. But the Vertx polo came through strong."

The result look promising. Its provent coldblack can perform better to blocked heat than regular fabrics. But, before you go replacing all your gear with Coldblack-treated options, consider this: According to result from runnersworld test, the plain white tee vastly out-performed the treated gear. So, if your first concern is staying as cool as possible, it's best to opt for light-colored gear. But, if you do want to add some color to your wardrobe, there are more options available.


Source:
http://www.schoeller-tech.com/en/textile-finishing-technologies/coldblack/faq-coldblack/\
http://www.runnersworld.com/running-apparel/coldblack-does-it-work
http://www.runningtowork.co.uk/armour-good-product-review/
http://www.policemag.com/channel/patrol/articles/2013/10/police-product-test-fechheimer-vertx-coldblack-polo-and-phantom-lt-pants.aspx



Ride On!





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