How to choose a patio umbrella and parasol?

1. Pay attention to the anti-ultraviolet performance of the fabric fiber itself. The experiment proves that among the untreated fibers, the anti-ultraviolet performance of polyester fiber is the first. The benzene ring in the molecular structure of polyester fiber has the effect of absorbing ultraviolet rays. That is, the rayon, rayon, etc. in the nylon glue, the anti-ultraviolet performance is not as good as polyester.
Second, pay attention to the organizational structure of the fabric The thickness and tightness of the fabric have a certain impact on its anti-ultraviolet performance. The thicker the fabric, the better the UV resistance, and the tighter the fabric, the stronger the light blocking ability and the smaller the UV transmission.
3. The price is not proportional to the anti-ultraviolet effect. "The price of a parasol is not simply determined by the anti-ultraviolet effect." He Lingjun, secretary general of the National Umbrella Professional Committee, said. According to reports, some parasols have high prices, which are related to the fabric, handle, accessories, umbrella frame material, production process, packaging and brand effect of the umbrella. Anti-ultraviolet effect is not the main factor in pricing.