There are many different types of umbrellas on the market. In the process of purchasing, we should pay attention to the choice of polyester umbrellas. Such umbrellas are better than ordinary umbrellas. At the same time, we must also pay attention to the purchase of darker shades of umbrellas, which are not only good for sun protection but also good for UV protection.
With the hot summer, sun umbrellas are commonly used in our lives, and some umbrellas do not have UV protection. How to choose a sun umbrella?
First, it depends on whether there is a sunscreen coating. The sunscreen coating is a coating on the umbrella, called “silver glue”, which has a sunscreen effect.
Secondly, look at the sun protection factor of the sun umbrella. The sun protection factor of the sun umbrella is marked with a UPF greater than 40, and the UVA ultraviolet transmittance is less than 5%. To achieve these two indicators, it can be called a qualified sunscreen product. But for this, we may not be easy to distinguish, because many manufacturers do not have a clear definition of sun protection, but only the logo has UV protection.
Finally, the color should be dark and the fabric should be thick. Sun umbrellas with deep colors and thick fabrics are higher than the umbrella index of ordinary thickness, and the sunscreen effect is better. According to the fabric of the umbrella can be divided into three categories: ordinary coatings (mainly pearlescent silver glue, color plastic, black plastic), polyester and composite fiber.