This kind of shoes high comfort, high quality, affordable, favored by domestic and foreign customers high praise.
Baby Happy here, we are baby and kid shoes leading supplier in China for 10 years. Serving for Robbeez, Disney etc brands.
High quatity is our core value and earnest promise.
All leather pass US CUSTOMS TEST, and the factory has passed the EU BSCI certification.
Kids Boot, Children Boot, Boys Kids Boot, Girls Kids Boot Shenzhen Baby Happy Industrial Co.,Ltd , https://www.bbabyshoes.com
The national standard stipulates that fabrics with UPF<30+ and UVA transmittance >5% cannot be called UV-resistant fabrics.
The UV protection unit is the UPF value. The method for calculating the UV protection function is: UPF = the minimum exposure of the skin to the erythema under the protection of the skin / the minimum exposure of the skin under the protection of the skin, that is, when you wear this dress, you Can withstand several times the sun exposure time.
Anti-UV clothing fabrics include cotton, hemp, silk, wool, chemical fiber and other fabrics. Some UV-resistant fabrics that have been well-organized have good absorption of ultraviolet rays (especially UV-A and UV-B) in the 180-400 nm band. Conversion, reflection and scattering, the finished fabric is non-toxic, non-irritating to the skin, the human body does not produce an allergic reaction, and does not affect the coloration and moisture permeability of the fabric. Good UV protection fabric has good absorption of ultraviolet rays in the 100-400cm band, especially UV-A and UV-B. After 50 washings, the UV transmittance is still less than 1%, and the UV blocking coefficient UPF can reach 50. The highest level of +.
What are the UV resistance indexes of fabrics?
What are the UV protection indexes of fabrics? Ultraviolet light is a radiation having a wavelength of 400 to 100 nm. Appropriate amount of ultraviolet radiation can enhance people's physical fitness and ability to resist infectious diseases, promote the synthesis of vitamin D3 in the body, maintain normal calcium and phosphorus metabolism and bone growth and development, accelerate wound healing and improve immunity. When ultraviolet rays are strongly applied to the skin, it may cause photodermatitis, erythema, itching, blisters, edema, etc. on the skin; severe skin cancer may also occur. According to statistics, since 1983, global skin cancer patients have increased at a rate of 5% per year. This is related to the reduction of the ozone layer. For every 10% reduction in the concentration of the ozone layer, the incidence of human skin cancer will increase by 26%.