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A specially treated fabric designed to protect the body from excessive ultraviolet radiation. This fabric is usually treated by adding
anti-UV additives to meet different UV Protection factor (UPF) standards, thus providing varying degrees of sun protection.
The use of ultraviolet absorbers mixed in the fabric to absorb high-energy ultraviolet light, so that it is converted to low energy, into low energy heat or short wavelength electromagnetic waves, so as to eliminate the harm of ultraviolet light to the human body and fabric, the use of ultraviolet reflectors can increase the reflection and scattering of ultraviolet light on the fabric, to prevent through the fabric. It has the properties of heat prevention, heat insulation and cool to the touch.
Ultraviolet rays in the solar spectrum not only fade and embrittlement of textiles, but also cause sunburn and aging of human skin, produce melanin and color spots, and more seriously can induce cancer and endanger human health. The way to improve the anti-ultraviolet performance of textiles can directly choose fibers with good anti-ultraviolet performance as raw materials to produce textiles and other methods to reduce the harm to the human body.
The UV Protection Standard 801 label, as an independent third-party certification label, helps to easily identify UV protection products and their protection factors and win the trust of consumers. The UV Protection Standard 801 tag also contains additional consumer information about UV protection textiles, including how to determine skin type and the required UPF level.
Chinese standard: In 1997, China formulated GB/T 17032-1997 "Test method for ultraviolet transmittibility of fabrics", and in 2009, it re-formulated GB/T 18830-2009 "Evaluation of ultraviolet resistance of textiles", which is suitable for all kinds of textiles, and the standard stipulates that the UPF value of samples is >40, and the ultraviolet transmittibility is < 5%. Can be called anti-purple line products.
