Fyuluta ya UV Yogwira Ntchito Kwambiri ya Broad-Spectrum

M'zaka khumi zapitazi pakufunika kukweza chitetezo cha UVAchinali chikuwonjezeka mofulumira.

Kuwala kwa UV kumakhala ndi zotsatirapo zoyipa, kuphatikizapo kutentha ndi dzuwa, chithunzi-ukalamba ndi khansa ya pakhungu. Zotsatirazi zitha kupewedwa pokhapokha ngati zitetezedwa ku kuwala konse kwa UV, kuphatikizapo UVA.

Kumbali inayi palinso chizolowezi chochepetsa kuchuluka kwa "mankhwala" pakhungu. Izi zikutanthauza kuti UV imachotsa bwino kwambiri.ma rberiyenera kupezeka kuti igwiritsidwe ntchito pakufunika kwatsopano koteteza ku UV.Kuteteza Ku dzuwa-BMTZ（Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine yapangidwa kuti ikwaniritse izi. Ndi yokhazikika pa kuwala, imasungunuka mu mafuta, imagwira ntchito bwino kwambiri ndipo imaphimba mitundu ya UVB ndi UVA. Mu chaka cha 2000, akuluakulu aku Europe adawonjezera Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine pamndandanda wabwino wa zodzoladzola za UV.

•UVA:Magulu awiri a ortho-OH amafunika kuti mphamvu ifalikire bwino kudzera mu intramolecular hydrogen bridges. Kuti apeze mphamvu zambiri mu UVA, malo a phenyl awiriwa ayenera kusinthidwa ndi O-alkyl, zomwe zimapangitsa kuti bis-resorcinyl triazine chromophor ikhalepo.

•UVB:Gulu la phenyl lotsala lomwe limalumikizidwa ndi triazine limapangitsa kuti UVB iyambe kuyamwa. Zingasonyezedwe kuti ntchito yayikulu ya "full spectrum" imachitika ndi O-alkyl yomwe ili mu para-position. Popanda kusungunula zinthu zina, ma HPT sasungunuka kwambiri mu mafuta odzola. Amawonetsa mawonekedwe wamba a utoto (monga, malo osungunuka kwambiri). Pofuna kuwonjezera kusungunuka m'magawo amafuta, kapangidwe ka fyuluta ya UV kasinthidwa moyenera.

Ubwino:

Chitetezo cha dzuwa chochuluka

Yofanana kwambiri ndi zosefera zina za UV

Kukhazikika kwa fomula