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A UV-resistant umbrella is certainly not necessarily useful, it just lowers the UV rays.
When buying this kind of umbrella, you should buy something dark, such as black, brown, etc., because it has a stronger ability to absorb light.
Sun umbrellas block about 70% of UV rays.
How to distinguish whether it is UV-proofWhen buying an umbrella, pay attention to whether there is a label in the umbrella that says that the umbrella is UV-resistant, that is, the umbrella can really protect against UV rays (ordinary umbrellas are actually unable to resist UV rays). Of course, there are also dual-purpose umbrellas that are both rain and UV resistant. Usually the label will be sewn into the inside of the umbrella by the skeleton, or on its ** tag there is a mark on the anti-UV effect why it is the same umbrella, ** the difference will be so big.
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The sun protection of the umbrella is the same, the sunscreen coating material is the same, ** the difference is a different style design, and the fabric of the umbrella is different.
Principle of UV absorber:
UV absorbers are mostly aromatic compounds containing benzene rings. Absorbs ultraviolet rays. The absorber absorbs the energy of ultraviolet light due to the resonance of the benzene ring.
It is converted into heat energy or non-destructive light energy released. It then reverts to its original molecular structure. This allows the use of this absorbent to be used repeatedly.
It does not damage the absorbent itself. It is a chemical anti-ultraviolet principle.
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UV-resistant umbrellas are generally not allowed to be used as umbrellas. A sunscreen umbrella is an umbrella made with UV-resistant fabrics and coatings that can be used to block UV rays. Sunscreen umbrellas are functionally different from regular umbrellas, but they can also be used temporarily to shelter from the rain if needed.
UV-blocking umbrellas have a light-blocking coating. The shading coating is generally divided into black glue, color glue and silver glue, the sunscreen ability of the vinyl "color glue" silver glue, the anti-ultraviolet sun umbrella made of vinyl material is not suitable for use as an umbrella in rainy days, the sun umbrella has a film that blocks ultraviolet rays, and it will be destroyed after the rain, because there is a layer of sunscreen coating on the outside of the sun umbrella, which will gradually fade because it is often washed by the wiper, and then reduce the anti-ultraviolet function of the sun umbrella.
The characteristics of the vinyl umbrella are strengthened anti-ultraviolet and no peculiar smell, not easy to age, while the silver umbrella is anti-ultraviolet by coating, and the quality of the coating directly determines the degree of anti-ultraviolet rays.
The umbrella mainly relies on the overall physical structure of the umbrella, when the whole umbrella surface is opened, its physical tension is very large, the fabric of the umbrella is pulled apart by a strong tension, and the spacing between each structural rope of the fabric becomes very small, because the tension on the surface of the raindrops is difficult to penetrate such a small gap.
In addition, most areas of the umbrella have a slope, and since the oblique component of the gravitational force of the raindrop is greater than the frictional force, the raindrop falls in the direction of the oblique component. In terms of the choice of umbrella color, dark colors have a better sunscreen effect than light colors.
It can be seen that although the UV umbrella can also shelter from the wind and rain, the rain is acidic, which will corrode the UV protection coating on the umbrella and reduce the shading effect. Try to choose to use an umbrella, the main function of the umbrella is to prevent wind and rain, and generally the umbrella is larger than the sun umbrella, and the rain protection effect is better.
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Special UV umbrellas should not be used to protect from the rain. If you buy a rain or shine umbrella, then the umbrella has the function of both an umbrella and a parasol, but its sun protection effect will be worse than that of a sunscreen umbrella.
If you buy only a sunscreen umbrella, it is best not to use it to protect from the rain, the special UV protection coating of the sunscreen umbrella will be destroyed by the acidic substances in the rain when it rains, and the sunscreen effect will be greatly reduced. The design of the sunscreen umbrella is mainly on the anti-ultraviolet material, and the main function is sunscreen and ultraviolet protection.
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If you indicate when you buy it is used rain or shine, it can be used on rainy days, there are two kinds of parasols, one is coated, some coatings are on the outside and some are coated inside, this coating on the outside seems to be generally not used for rain or shine, and the coating on the inside can be used rain or shine; One is that the direct fabric is sunscreen, which can be used for both rain and shine, in fact, ultraviolet rays are very well blocked, even ordinary umbrellas can also cover ultraviolet rays, so don't mind so much, how convenient it is for you.
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The anti-ultraviolet umbrella surface materials are mostly nylon and polyester, which are processed by anti-ultraviolet processing; There are three main fabrics for ordinary umbrellas: nylon, polyester and PG cloth, so UV-proof umbrellas can be used as umbrellas!
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UV-resistant umbrellas can be used as umbrellas.
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Yes, if there is an anti-UV coating on the inside of the umbrella, as long as the coating is not damaged, the anti-UV effect of the umbrella will not be reduced.
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Of course, you can, but frequent water exposure will affect its function.
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Yes, the sunscreen umbrella has a black cloth in it.
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Yes, the UV umbrella is an ordinary umbrella with a black cloth with UV protection.
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It can keep out the rain, and most of these umbrellas are sunscreen and rainproof.
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Yes, the sun can shade the sun, and the rain can shelter from the rain.
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Yes, you can use it, you earn it for two purposes.
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If you use it as an umbrella, the sunscreen effect will not be good.
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Using umbrellas is an effective way to protect yourself from the sun, as they block some of the UV rays. However, they don't completely block UV rays, so other sun protection measures are still needed to protect** from sun damage.
Parasols typically use a metric called the shading coefficient (UPF) to measure how much UV penetration they are able to prevent. The higher the UPF number, the more UV rays the parasol will be able to withstand. For example, a parasol with an upf of 50 will block 98% of UV penetration, while a parasol with an UPF of 30 will block 93% of UV penetration.
Therefore, choosing a parasol with a high UPF is a more effective sun protection measure.
However, even with a parasol with a high UPF ridge, it is still possible to be exposed to the sun and UV rays. Especially when the sun is strong, prolonged exposure to the sun can still cause sunburn and damage. Therefore, it is advisable to use sunscreen and wear adequate protective clothing along with the use of a parasol to maximize protection** from UV rays.
Additionally, it's worth noting that different colors of parasols may offer different levels of UV protection. In general, dark-colored parasols will provide better sun protection than light-colored umbrellas because they can absorb more light. Therefore, choosing a dark-colored parasol may be more beneficial than choosing a light-colored one.
In conclusion, parasols can partially block UV rays, but they do not completely prevent ** from being harmed. To maximize protection** from UV damage, it is recommended to take a number of sun protection measures, including wearing adequate clothing, using a parasol with a high UPF value, and using sunscreen. <>