How many categories of parasols are there? What materials are available?

There are two types of parasols, ladies' parasols and men's parasols, made of cotton, silk, nylon, polyester, viscose and so on.

Lady's parasol colors are mostly pink, purple, icy green, light blue, floral and other light tones, while men's parasols are heavy business style, black, navy, dark green, dark red and so on.

Generally speaking, cotton, silk, nylon, viscose and other umbrellas UV protection performance is poor, while polyester is better. Usually used to make umbrellas containing polyester fabrics such as color butyl cloth, Mac cloth. In addition, the UV performance to satin fabric is the best, the following order is twill, plain, the darker the better color.

Extended information

Sunscreen umbrella can not prevent ultraviolet rays, fabric texture is not the most important, the main also manufacturers are the fabric to do what kind of technical processing. General cotton, hemp texture of the fabric itself has a certain degree of UV protection performance, just the degree is not strong.

Two years ago, the market sales of sunscreen umbrellas are coated with a layer of silver gel on the umbrella surface, so that the treatment can reflect and block some of the ultraviolet rays of direct sunlight. But the quality of the silver gel is good and bad, the technical conditions of good manufacturers of sunscreen umbrellas silver gel is not easy to fall off, while some cheap sunscreen umbrellas in order to indiscriminately, just to the surface of the umbrella coated with a layer of silver, after a few times of sunlight exposure to fall off the color.

The umbrella surface in the case of wet, due to the optical conductivity of water, ultraviolet transmittance increases, the protective effect is reduced. Therefore, wet umbrellas should not be used for UV protection.

Baidu Encyclopedia-Sunshade Umbrella