The Principle of UV Protection Fabric
2016-01-08 08:44 | writer: admin
The principle of anti UV fabric is the use of mixed fabric in the ultraviolet absorbent to absorb high energy ultraviolet conversion to low energy, low energy is converted into heat or the shorter wavelengths of electromagnetic waves, which weakens the harm of ultraviolet radiation on the human body and fabric, using ultraviolet reflection agent can increase the fabric reflection and scattering effect on UV. Prevent through the fabric. Sunstroke prevention, thermal insulation performance has, touch the cool.
UV sunscreen unit is the UPF value, the specific method of measurement of anti ultraviolet function: UV exposure to ultraviolet irradiation amount minimum minimum / UPF= skin produce erythema in is not protected under the skin produce erythema on protected under, that is when you put the anti ultraviolet clothing when you can afford a few times the ultraviolet irradiation time.
Anti UV fabric include wool, cotton, linen, silk, chemical fiber and other fabrics, some after ultraviolet fabric anti good technological finishing in 180-400nm band ultraviolet (especially UV-A and UV-B) with absorption and transformation, reflection and scattering effect, the fabric is non-toxic, no stimulation to the skin after finishing and the human body does not produce allergic reaction, but also does not affect the fabric coloring degree and moisture absorbing and breathable performance. Anti UV fabric on 100-400cm band ultraviolet good, especially the UV-A and UV-B have good absorption effect, washed 50 times after UV transmittance of ultraviolet shielding coefficient is less than 1%, UPF also can reach the highest level 50+.