The main function of the sunshade is to block the sun and ultraviolet rays, but also to provide shelter from rain in rainy days. The fabric of the umbrella is usually very fine and contains small particles that effectively block UV rays and sunlight, thus protecting the skin from sunburn. In addition, the darker the color of the sunshade fabric, the better its UV resistance is usually. In addition to personal use, parasols are also widely used in outdoor furniture, dining and commercial places to enhance the comfort and temperament of leisure areas. At the same time, the parasol can also provide shelter for people in rainy days, preventing clothes and shoes from getting wet.