Are sunscreens made of polyester and nylon better?

Update:13-07-2020

Summary:

Polyester fabrics have better lightfastness, and their […]

Polyester fabrics have better lightfastness, and their lightfastness is better than natural fiber fabrics. Especially the lightfastness behind the glass.

However, nylon has better hygroscopicity and dyeability than polyester, and it is resistant to alkalis but not to acids. Its fiber strength will decrease after long-term exposure to sunlight. Nylon has heat-setting characteristics, which can maintain the bending deformation when heated.
1. Sun protection principle of sun protection clothing:

It is to add a sunscreen auxiliary agent-anti-ultraviolet finishing agent to the fabric. There are two main types of sunscreen tricks: one is to let the clothes absorb ultraviolet rays to achieve sun protection; the other is to make the ultraviolet rays refract and reflect on the surface of the clothes , Scattering, thereby reducing the damage of ultraviolet rays to the body.

If there are special needs, the fabric can be thickened again. The so-called thick finishing means weaving the fabric with a higher density. In the fabric weaving of the fabric, the fabric with a denser weave generally has better sun protection.

Second, the color sunscreen ratio:
The worst sun protection effect is light yellow cotton fabric with a sun protection factor of only 7. Followed by beige cotton fabric, its sun protection factor is 9. Although the sun protection factor of white cotton fabric can reach 33-57, clothing made with this material may still cause sunburn to people with sensitive skin.

PREV: Is there a difference between nylon and nylon?
NEXT: What is the difference between polyester and nylon?