Umbrellas are the most important part of sun protection in summer. Umbrellas are the largest sun protection tool that shields the head from the UV rays that radiate onto the body from all angles in the external environment where we operate. So, what is the principle of sun protection?
The principle of sun protection
The principle of sun protection is to reduce its transmission, so that UV rays are reflected or absorbed as much as possible. There are two main methods:
The first one is to make it reflect or scatter away. This includes two kinds of cases, one is the metal coating, which belongs to the mirror reflection, rule reflection; there is a pearl effect fabric, such as some umbrella surface, can scatter the ultraviolet ray to the direction of reflection.
The second method is in the fabric fiber internal mixed with UV-absorbing materials, or after the fabric is completed to do post-finishing, infiltration of some UV-absorbing materials, such as nano-level zinc oxide or titanium dioxide, etc.
What is the material of the sunshade coating
Sunshade sunscreen is because it has a coating. Sunshade coating is mainly divided into black rubber, silver rubber, no rubber. Black rubber is a new type of UV protection fabric, filtering UV rays by absorbing light and heat, not easy to fall off and crack, UPF is also higher. Silver rubber is a metal oxide coating, through the reflection to achieve the effect of sun protection, but easy to fall off and crack, UPF is not as good as black rubber. There is another kind of umbrella without rubber, is injected in the PG umbrella cloth transparent sunscreen coating, more beautiful.
Post time: Dec-29-2022