A simple way to test the UV protection effect of umbrellas

As we all know, the smaller the UV transmittance, the better the protection ability. Different materials have different ability to prevent ultraviolet transmittance, but how to measure ultraviolet transmittance may not be known to many people, because so far, the state has not yet issued a unified standard for testing ultraviolet radiation, here are some simple detection methods for you to choose an umbrella to use.

For example, the ultraviolet transmittance is 0.01% for silverware umbrella, 0.98% for white fabric, 2.17% for linen, 9.92% for fancy fabric and 10.34% for nylon fabric. Of course, the smaller the ability is, the better the protection ability is. Through this rough test, you can see that nylon has the worst ability, so if you buy an umbrella to protect against ultraviolet light, you'd better not choose this fabric.

In fact, there is a simple way to measure the anti-ultraviolet effect of the umbrella: take a few sunshade umbrellas, advertising umbrellas, choose different materials, put in the outdoor, inside a thermometer of the same type, exposed to the sun for 10 minutes, observe the temperature difference between the inside and outside of the umbrella, the temperature difference is great anti-ultraviolet effect, otherwise The result is poor.

But you have to figure out a problem, we are here to test the degree of UV protection of umbrellas, that is to say, in the perspective of you need a good sunshade umbrella, this with the umbrella wholesale market you see the quality of the umbrella is two issues, not necessarily good anti-UV effect of the cloth quality of sunshade umbrella must be on Well, this is not a concept.