Friends, what fabric is good for umbrella cloth? What material should I choose for my umbrella?

What kind of parasol is the most sun-proof? Pay attention to the following three aspects when choosing this kind of umbrella.

Look at the label first. Mainly depends on the protection index, that is, UPF and UVA values. Only when UPF is greater than 40 and UVA transmittance is less than 5% can it be called anti-ultraviolet product. The higher the UPF value, the better its ultraviolet resistance. Generally, most of the signs on the market are "UPF50++", and its protection function is enough.

Second, look at the color. In the case of the same fabric, the dark umbrella has better anti-ultraviolet effect. The biggest difference between parasols and other umbrellas is that they have an anti-ultraviolet coating to prevent ultraviolet rays from penetrating. By testing the ultraviolet transmittance of polyester fabrics of various colors, the ultraviolet transmittance of black fabrics is 5%. The ultraviolet transmittance of navy blue, red, dark green and purple fabrics is 5%-10%; The ultraviolet transmittance of green, red, light green and white fabrics is 15%.

Third, look at the fabric. The fabric with thick umbrella cover and tight fabric has better ultraviolet resistance. Compared with cotton, silk, nylon and other fabrics, polyester is more sun-proof. If you want to know the sun protection effect of parasols, try them in the sun. Umbrellas with deeper shadows and lower light transmittance have the best sun protection effect. You must choose brand products when buying umbrellas. Generally, regular manufacturers will use the brand logos in many places, such as the seams of umbrellas. In addition, rain will corrode the anti-ultraviolet coating, so it is best to use sunshade and umbrella separately. If the umbrella cover is dirty, you can wash it with clean water or rub it gently with your hands, otherwise it will also affect the effect. What fabric has a good sunscreen effect?

1, silver-plated fabric. Silver belt fabric not only has good anti-ultraviolet effect, but also is relatively cheap. When using, pay attention to the silver glue coating not to get wet. Rain will damage the coating of umbrella and reduce the sunscreen effect. For umbrellas that have been used for a long time, the silver glue coating will age and turn black. Sometimes you can find traces on the coating. This is because the dry climate causes the coating to shrink, and a new umbrella is needed to ensure the sunscreen effect.

2. Two new fabrics. TC yarn-dyed fabric is a new kind of fabric, which can be washed without affecting the sunscreen effect. The light transmittance is not high, and it can basically block ultraviolet rays with wavelengths of 380, 300 and 220 nanometers. Ultraviolet rays in the wavelength range of 250-400 nm are most likely to cause sunburn and dryness of human skin and hair. There is also a laser-punched fabric, which is woven by high-density technology. There are many refractive particles attached to the surface of the fabric, and each dot will change color with the rotation of the light position, which plays the role of scattering ultraviolet rays. These two fabrics have the best anti-ultraviolet effect, but they are more expensive.

3. Three kinds of fashionable fabrics. Fat and thin silk looks like lace, which is super light and beautiful, but this fabric has high light transmittance and poor sunscreen effect. Satin, a satin fabric, belongs to polyester, and its anti-ultraviolet effect is weaker than that of silver-plated fabric. There is also a kind of fabric on the market called pearl tape, which has a certain reflection effect on ultraviolet rays, and its sunscreen effect is worse than that of silver-plated fabric.