Views: 0 Author: Uplion Publish Time: 2021-12-08 Origin: Uplion
When we buy outdoor patio garden umbrellas, we should pay attention to whether the umbrella has anti-UV ingredients, that is, whether this umbrella can really protect against ultraviolet rays. When buying outdoor patio garden umbrellas, you should refer to the following points: When choosing an umbrella surface, umbrellas with obviously sparse fabrics generally have poor UV resistance, and consumers should buy them carefully. Due to the shrinkage characteristics of fabrics, when buying outdoor patio garden shading, the umbrella surface should be large rather than small. The color of the fabric is related to the UV protection performance. Under the same conditions, the darker the fabric, the better the UV resistance. In contrast, black, navy blue, dark green and light blue, light pink, and light yellow have better UV resistance.
Consumers should also consider the local sun exposure when purchasing, and choose an umbrella that suits them. Choose qualified products from experienced suppliers and beware of counterfeit UV protection umbrellas. The anti-ultraviolet performance can be preliminarily judged according to the fabric nature of the umbrella surface. Generally speaking, cotton, silk, nylon, viscose, etc. have poor UV resistance, while polyester is better. In the past two years, most of the outdoor patio garden parasols sold on the market are coated with a layer of silver glue on the umbrella surface. This treatment can reflect and block some direct ultraviolet rays. However, the quality of silver glue is good or bad. The silver glue of sunscreen umbrellas produced by manufacturers with good technical conditions is not easy to fall off, and some cheap sunscreen umbrellas just coat the umbrella with a layer of silver in order to refill the number. After several sun exposures It faded. When outdoor patio garden umbrellas are wet, due to the optical transmission of water, the transmittance of ultraviolet rays increases and the protective effect decreases. Therefore, wet umbrellas are not suitable for UV protection.