So, sun umbrella selection, quite some "squandering charming eyes" feeling. But in fact, as long as you remember the following tips, you can easily buy sun umbrella with better sunshine and better sun protection effect.
Which color is better for sun protection?
To answer this question, the engineer decided to carry out the UV protection test on the ten color blocks of the ordinary color sunshade". Look at the same conditions, which color UV barrier effect is more significant. Soon, the test results came out. It is not difficult to find that the block with better ultraviolet barrier performance is "deep red", UPF reaches 26.4, and UVA transmittance is 8.07%. At the same time, the performance of "light red" color block is the worst, UPF is only 18.05, and UVA projection ratio is 12.33%.
As you can see, the darker the shade, the better the UV protection. What factors affect the effect of sunscreen? In fact, a "sun umbrella" anti UV performance is the result of multiple factors together.
In addition to the color difference, the thickness of the umbrella, the tightness of the fabric, and the fabric used are also very particular. Buy sunscreen umbrella first look at the UV tag, admittedly, in addition to color, the sun umbrella, the rest of the quality evaluation indicators, it is difficult to be perceived by ordinary consumers. However, from regular manufacturers of sunscreen umbrella, will be marked on the product "anti UV" functional information". If the label is missing or the information is incomplete, you have to be careful.
Buy an umbrella before you see the light in addition, after you have a favorite phase of the sun umbrella, don't rush to pay, may wish to use sunlight or indoor incandescent light, look under the glare of the lights, whether the umbrella sun umbrella will appear mottled light.