How to choose a sun umbrella? Points to pay attention to when buying a sun umbrella

It is very important to select the appearance material of a parasol. The coating on a parasol has a lifespan. A good parasol will have better sun protection and service life. Everyone should pay attention to choosing a professional one.

1. Choose a sun umbrella according to your purpose

There are actually two types of parasols: one is sun-proof and has the function of reflecting ultraviolet rays, and the other is sun-proof and has a high light-shielding rate. The former is suitable for people who don't want to get tanned, and the latter is suitable for people who are afraid of strong light but not tanned. Therefore, when buying a parasol, you should also buy it according to your needs. If you don't want to get tanned, you should try to choose a parasol with a high ultraviolet reflectivity.

2. Pay attention to the UV reflection processing of sun umbrellas

In principle, parasols made of dark-colored materials are less likely to let in ultraviolet rays than parasols made of light-colored materials. However, if better processing methods are adopted, people can choose parasols of different colors according to their preferences, without having to stick to dark-colored ones.

3. Pay attention to the color inside the parasol

When buying a sun umbrella, many people care about the color of the outside, but the color of the inside is also closely related to its effectiveness. If the inside of the sun umbrella is a shiny light color, it is easy to collect ultraviolet rays reflected from the ground, so people will get tanned even if they are holding a sun umbrella. Therefore, when choosing a sun umbrella, people who are afraid of getting tanned should pay attention to choosing products with a dark interior such as black or dark blue.

1 When choosing a sun umbrella, sisters often only pay attention to the outside of the umbrella. In fact, the inside of the sun umbrella is very important. If the inside of the umbrella is light-colored, it will easily absorb the ultraviolet rays reflected from the ground, so even if you walk around with an umbrella all day, you will still get tanned.

2. The material of the parasol is also the key to the selection. Parasols made of silk or linen will have a much better heat insulation effect and will be cooler when used. Parasols made of chemical fiber and polyester fiber are not easy to dissipate heat, and people will feel hotter and hotter. Sisters should pay attention to this when buying.

3. The key to the quality of an umbrella is the ribs. Multi-fold umbrellas are usually made of aluminum, which is easy to carry, but not very strong. Single-fold umbrellas are usually made of steel, which is very strong, but too big to store when you go out. You can choose according to your needs.

What is the role of the sun umbrella material

1. Anti-ultraviolet performance of fabric fiber itself

Experiments have shown that among untreated fibers, polyester fiber has the best anti-ultraviolet performance. The benzene ring in the molecular structure of polyester fiber has the function of absorbing ultraviolet rays. Among chemical fibers, nylon, that is, artificial cotton and rayon in nylon glue, has anti-ultraviolet performance, but it is not as good as polyester. Therefore, the raw materials used to make parasols determine that they have the function of anti-ultraviolet.

2. Fabric structure

The thickness and tightness of the fabric have a certain impact on its anti-ultraviolet performance. The thicker the fabric, the better the anti-ultraviolet performance, and the tighter the fabric, the stronger the light blocking ability and the less ultraviolet light transmittance.

3. Fabric color

According to the test results of the China Institute of Metrology, the color of the fabric also plays a certain role in blocking UV rays. The darker the color, the lower the UV transmittance and the better the UV protection performance. Generally, dark-colored umbrella fabrics can block 95% of UVA. Under the same conditions, the darker the color of the fabric, the better the UV protection performance. In comparison, black, navy blue, and dark green have better UV protection effects than light blue, light pink, and light yellow.

Is it better to put the vinyl of the parasol inside or outside?

It is better to put it inside, and it is better to put it in a light color outside. In this way, most of the light is reflected, and the rest is absorbed by the black inner layer. If the black is on the outside, black absorbs all the color light, so it appears black. Therefore, if black is on the outside, all the color light of the sun is absorbed, so it appears very hot. If the black is on the inside, the outer layer is other colors (the lighter the color, the better, the less color light is absorbed, the cooler it is), then the outer layer reflects most of the sunlight, and the inner layer of black absorbs part of the sunlight, so it will not be so hot, and it has the same sun protection effect. Another point is that if the inner layer is black, the other color light reflected from the ground will enter the umbrella and be absorbed, and will not shine on the face, which is better.