Why do sun umbrellas protect against UV rays?

Updated on vogue 2024-03-28
3 answers
  1. Anonymous users2024-02-07

    Sun umbrellas are usually supplemented with anti-UV finishes and UV shields. In addition, UV absorbers and reflectors are also applied to fabrics to provide superior protection against UV rays. There are two types of UV protection umbrellas: glossy and matte.

    Glossy umbrellas dominate the market and appear pretty and lively; The production process of matte umbrellas is relatively complex, expensive, and looks unassuming, giving people a subtle and stable impression. Silver glue UV protection sun umbrella. After using the silver glue anti-ultraviolet sun umbrella for a period of time, the silver glue will partially peel off due to wind and sun, especially the part that is in contact with the umbrella bone is more obvious.

    If the silver glue coating is outside, it will cause mottling and affect the appearance, so it is better to choose the silver glue coating inside the umbrella, which is not easy to peel off and will not affect the beauty of the umbrella.

  2. Anonymous users2024-02-06

    The two of them are too professional, I'll make it simple:

    1. On the outside of the sun umbrella, there is a difference between the early stage and the later production, the early sun umbrella is coated with silver glue on the outside, and the recent ones are not like this, and there is one more called vinyl, which is painted inside.

    2. The surface is generally printed, embroidered, and classified as fabric.

    3. Silver glue and black glue contain materials that absorb ultraviolet rays, and if the gum falls off prematurely, it will affect the absorption of ultraviolet rays.

    4. The current fabric can also have a certain absorption effect on ultraviolet rays.

  3. Anonymous users2024-02-05

    Sun umbrellas are one of the must-have sunscreen products for many of us in summer, but many people don't know whether sun umbrellas can put ultraviolet rays and whether they have sun protection effects. Let's take a look at the sun umbrella.

    1. It has a certain effect

    Sun umbrellas have a certain effect of protection against ultraviolet rays。Generally, the sun umbrella will use protective fabrics such as silver glue, pearlescent cloth, and satin, which can block part of the purple reeds. And someOrdinary sun umbrellas without UV protection coatings also have a certain defensive effect, but the sun protection effect of this umbrella will be affected by the color of the umbrella

    2. Don't cover the rain too often

    Many people who accompany the stall in the summer often use the sun umbrella as both a parasol and an umbrella for convenience, but in fact, this is not very advisable. Because sun umbrellas with shading effect usually use thicker and special anti-ultraviolet fabrics, and when it rains, rainwater often uses substances that corrode the surface of the umbrella and affect the sunscreen effect, so everyoneIt is best not to use a sun umbrella to cover the rain very often, it's okay to have an occasional emergency. In additionAfter using a sun umbrella to cover the rain, it is best to rinse the umbrella with water and then dry it

    3. How to choose an umbrella

    When buying a UV-resistant sun umbrella, it is better to choose polyester fiber as the raw material, because among the untreated fibers, polyester has the best UV resistance. In addition to that,When buying a sun umbrella, you also need to look for the UV protection labelGenerally, when the umbrella has UPF 50, it means that the performance of this umbrella to protect against ultraviolet rays is very good, and its identification level is usually UPF50.

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