What are the ingredients of sunscreen clothing

What are the ingredients of sunscreen clothing? What material is the fabric of sunscreen clothing? Polyester fabric, nylon fabric, cotton fabric, silk fabric. The fabrics of sunscreen clothing are roughly these four, each with its own characteristics. Polyester fiber fabrics have high sunscreen performance, but poor air permeability; nylon fabrics have good wear resistance, but are easy to deform; cotton fabrics have good hygroscopicity, ventilation, but are easy to wrinkle; silk The quality fabric is very smooth and has poor sun protection.
The sunscreen effect of polyester fiber fabric is the best. The molecular structure of polyester fiber contains benzene ring, which can play a good role in reflecting ultraviolet rays, so it can play a certain role in UV protection and sun protection. effect. Secondly, it also has a sunscreen coating, which can prevent ultraviolet rays from harming the skin through clothes, which has a double sunscreen effect. 
Most sunscreens are UV-blocking fabrics with sunscreen additives added to the fabric, and a sunscreen coating is applied to the inner layer of the garment, like a sun umbrella. A sunscreen can block 95% of UV rays. However, after soaking in water or washing several times, the sun protection effect will weaken until it disappears. There are also some relatively high-end sunscreen fabrics that use sunscreen ceramic fibers combined with polyester fibers to increase the reflection and scattering of ultraviolet rays on the surface of the clothes, preventing ultraviolet rays from passing through the fabric and damaging human skin. This type of sun protection clothing is less affected by water immersion and washing, and the sun protection function can be maintained for a long time.

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