WHAT IS ANTI-ULTRAVIOLET CLOTH?
March 16,2021
What is the UV protection fabric used for sun protection hats? Preventing ultraviolet rays from harming the human body has been valued by more and more consumers. If the hat is not made to fix the color, the ultraviolet rays in the solar spectrum will not only fade the hat but also embrittle it, but also cause the human skin to sunburn and age, and it will also produce melanin and stains. More seriously, it will induce cancer and endanger human health. The original function of the hat is for sun protection, so why does the hat need to add sun protection function? Do we know what an anti-ultraviolet fabric is?
The anti-ultraviolet fabric is to absorb high-energy ultraviolet rays by using the ultraviolet absorber mixed in the fabric to convert it into low-energy heat energy or short-wavelength electromagnetic waves, thereby eliminating the harm of ultraviolet rays to the human body and hats, and using ultraviolet rays The reflector can increase the reflection and scattering effect of the cap on ultraviolet rays and prevent the cap from passing through. At the same time, it also has the properties of heatstroke prevention, heat insulation, and cool touch. To
Anti-ultraviolet clothing fabrics include cotton, linen, silk, wool, chemical fiber, and other fabrics. Some anti-ultraviolet fabric hats that have been well-finished have good absorption, conversion, reflection, and scattering effects on ultraviolet rays in the 180-400nm band. The latter fabric is non-toxic, non-irritating to the skin, and the human body will not produce allergic reactions, and at the same time, it does not affect the coloration and moisture absorption, and vapor permeability of the hat fabric. Good anti-ultraviolet fabrics have a good absorption effect on ultraviolet rays in the 100-400cm band, especially UV-A and UV-B. After 50 times of washing, the ultraviolet transmittance is still less than 1%, and the ultraviolet shielding coefficient UPF can reach 50. + The highest level.
Thick fabrics have better UV resistance than thin ones. Among them, polyester fiber has the best UV resistance. This is related to the ability of the benzene ring in the molecular structure of polyester fiber to absorb ultraviolet rays. The anti-ultraviolet properties of nylon, cotton, and silk are not satisfactory. So when you choose anti-ultraviolet fabrics, try to choose thick fabrics containing polyester fibers.