UV absorbers yɛ nneɛma a ɛho hia wɔ nneɛma pii mu a owia hann a ɛwɔ mu, a nea ɛka ho ne aduru a wɔde siw owia ano, plastic, ne nneɛma a wɔde kata so. Wɔboa ma wɔbɔ UV hann ho ban, na ebetumi asɛe nneɛma ne nnipa honam ani. UV absorbers ahorow pii wɔ hɔ, a nea ɛka ho ne:
1. UVA Absorbers: Saa absorbers yi twetwe UVA hann no asorɔkye tenten a ɛtumi hyɛn honam ani kɔ akyiri na ɛne honam ani hwɛbea ne kokoram wɔ abusuabɔ.
2. UVB absorbers: Saa absorbers yi twe UVB hann no asorɔkye ntiantiaa a ɛma owia hyew no na ɛne honam ani kokoram nso wɔ abusuabɔ.
3. UVC absorbers: Saa absorbers yi ntaa mma, efisɛ UVC hann no fã kɛse no ara na asase so wim tebea no twetwe. Nanso, ɛtɔ da bi a wɔde di dwuma wɔ mfiridwuma mu mmeae a wɔde UVC akanea di dwuma.
4. Organic absorbers: Wɔde organic compounds na ɛyɛ saa absorbers yi na wɔtaa de di dwuma wɔ owia aduru mu, ne plastic ne coatings nso.
5. Nneɛma a ɛnyɛ nkwaboaa a ɛnyɛ nkwa: Wɔde nneɛma a ɛnyɛ nkwaboaa te sɛ zinc oxide anaa titanium dioxide na ɛyɛ saa nneɛma yi, na wɔtaa de di dwuma wɔ nnuru a wɔde siw owia ano ne nneɛma bi a wɔde kata so mu.
Sɛ yɛka ne nyinaa bom a, UV absorbers yɛ adwinnade a ɛho hia a wɔde bɔ ho ban fi UV hann a ɛyɛ hu no ho. Ɛdenam UV absorber a ɛfata a wɔpaw ma wɔde di dwuma pɔtee bi so no, wobetumi aboa ma nnipa ne nneɛma akɔ so ayɛ nea ahobammɔ wom wɔ owia mu.
