The anti-ultraviolet performance of the anti-ultraviolet fabric mainly depends on the material of the fabric. The research result is that the anti-ultraviolet performance of the polyester knitted fabric is the best, and the silk clothing has less anti-ultraviolet capability. Secondly, the color of the fabric also affects its anti-UV performance. Take polyester fabric as an example: black, UV transmittance is 5%, navy blue, red, dark green, purple, transmittance is 5% -10%, green, light Red, light green, and white, the transmission is 15% -20%. Because of the small size, the UV protection performance is better than light-colored fabrics. Therefore, from the perspective of wearing comfort, cotton fabric is hygroscopic and breathable and is the preferred fabric for summer clothing. Using cotton fabric as the substrate, after a unique process, the isolation factor is introduced into the fiber. When ultraviolet rays meet the isolation factor in the fabric fiber, the barrier rate is as high as 90% to volatile and insoluble water, which can keep the sunscreen cool for a long time The function of sunscreen fabrics for clothing and some supplies.
The anti-ultraviolet effect of the polyester fabric is the best, and the anti-ultraviolet performance of the cotton, silk, nylon, viscose and other fabrics is poor. Polyester fabric has good absorption and reflection of ultraviolet rays, strong shielding property, ultraviolet transmission rate is less than 3%, and the ultraviolet protection rate is still more than 85% after washing for many times. In addition, the darker the fabric, the better the anti-ultraviolet performance. Black, navy blue, and dark green are better than light blue, light pink, and light yellow. The darker the fabric, the lower the UV transmittance and the cooler the person under the umbrella.
