2. PG cloth: Also called impact cloth, high-density impact cloth is a new kind of cloth. PG has the following characteristics: the color is dull and dark. The cloth feels like cotton cloth and has good light resistance. PG cloth is more expensive, but it has ideal anti-ultraviolet function, stable quality and grade color. This is a good umbrella cloth. Generally, PG cloth is only used for high-grade umbrellas.
3. Nylon cloth: It is an advanced variety of umbrella cloth. This poncho is brightly colored and feels like silk to the hand. Rub back and forth with your hands, and the resistance is very small. However, this kind of cloth has a weakness, which is greatly influenced by air humidity, and the umbrella cloth shrinks seriously, sometimes even affecting the normal opening and closing of the umbrella cover. Therefore, there are not many umbrella fabrics in common use.
4. Transparent plastic: Transparent umbrellas that have become popular in recent years are made of POE or PVC plastic, and some have various patterns and colors.
5. Ethylene base fabric: Compared with other umbrella fabrics, ethylene base fabric is superior to other umbrella fabrics in ultraviolet protection. Due to the different vinyl technology or fabric quality, the real anti-ultraviolet performance of umbrellas on the market is not the same.
Extended data
In ancient times, rainy days and hot summers plagued people, and people had to hide under small pavilions and could not go out. There is a legend that Luban built many pavilions around his neighbors for everyone to use, but he still couldn't let people in and out freely in the stormy season.
Lu Ban's wife then made a lightweight bamboo pavilion out of oil paper according to the style of the pavilion built by her husband-this is the earliest umbrella. Lu Ban's wife said to Lu Ban, "The house you built can't be moved. My umbrella can carry it around and provide protection all year round. "
Baidu encyclopedia-umbrella