Lub hnub muab lub teeb tseem ceeb thiab sov so, tab sis nws cov hluav taws xob ultraviolet (UV) ua rau muaj kev pheej hmoo loj, suav nrog kev tshav ntuj, kev laus ntawm daim tawv nqaij ntxov, thiab mob qog noj ntshav. Kev thaiv cov hluav taws xob zoo no yuav tsum tau nkag siab tsis yog xwbdab tsisiv, tab sisua li cascov ntaub ntawv sib txawv ua. Lub hnub "zoo tshaj"- thaiv cov khoom nyob ntawm cov ntsiab lus: Puas yog peb tham txog khaub ncaws, qhov rais, lossis tshuaj pleev thaiv hnub? Kab lus no tshawb txog cov neeg ua yeeb yam zoo tshaj plaws hauv txhua pawg.
1. Rau Kev Tiv Thaiv Lub Cev & Cov Khaub Ncaws: Lub Hwj Chim Ntawm Qhov Ncauj thiab Xim
Thaum nws los txog rau cov khoom siv, qhov ua tau zoo ntawm kev thaiv lub hnub yog ntsuas los ntawmKev tiv thaiv ultraviolet Factor (UPF), zoo ib yam li SPF rau cov tshuaj pleev thaiv hnub. Ib qho UPF ntawm 50 tso cai tsuas yog 1/50th (2%) ntawm UV hluav taws xob nkag mus.
Cov neeg ua yeeb yam zoo tshaj:
Tightly Woven Fabrics:Lub weave yog qhov tseem ceeb tshaj qhov fiber ntau. Densely woven cov ntaub ntawv zoo lidenim, canvas, thiab hluavtaws microfibersmuab kev tiv thaiv zoo tshaj plaws los ntawm lub cev thaiv UV rays los ntawm kev sib txawv.
Tshwj xeeb hnub ci-Cov ntaub tiv thaiv:Ntau lub npe ntawm cov khaub ncaws ua tau zoo siv cov ntaub tshwj xeeb uas tsim los nrog UV- txwv tsis pub cov tshuaj los yog tsim kom ua tiav cov ntaub nruj heev. Cov no feem ntau raug ntsuasUPF 50+, qeb siab tshaj.
Unbleached paj rwb:Ntuj paj rwb nyob rau hauv nws thicker, unbleached xeev (xws li hnyav hnyav khaki) muaj zoo UV nqus. Bleaching thiab stretching nyias cov fibers, txo kev tiv thaiv.
Polyester thiab Nylon:Cov fibers hluavtaws no feem ntau muaj cov qauv molecular uas absorbs UV hluav taws xob zoo dua li paj rwb, tshwj xeeb tshaj yog thaum tsaus nti.
2. Rau qhov rais thiab iav: Qhov xav tau rau cov txheej txheem tshwj xeeb
Txheem ntshiab iav blocks feem ntauUVB rays(qhov tseem ceeb ua rau sunburn) tab sis tso cai rau ib feem tseem ceeb ntawmUVA rays(uas ua rau kev laus thiab nkag mus tob) kom dhau mus.
Cov neeg ua yeeb yam zoo tshaj:
Low-E (Low-Emissivity) iav:Qhov no muaj cov txheej microscopically nyias, pob tshab xim hlau txheej uas qhia txog cov cua sov infrared (ua kom sab hauv txias dua) thiab thaiv cov feem pua ntawm UV rays (feem ntau 75% lossis ntau dua).
Laminated iav:Siv nyob rau hauv lub tsheb windshields, nws muaj ib tug yas interlayer uas thaiv tshaj99% ntawm UV hluav taws xob. Qhov no yog vim li cas koj tsis tshua tau txais kev tshav ntuj los ntawm lub tsheb iav.
Qhov rai Films:Kev siv tinting films tuaj yeem muab ntxiv rau qhov rais uas twb muaj lawm. High - cov yeeb yaj kiab zoo tuaj yeem thaiv99% ntawm UVA thiab UVB raysthaum tseem txo cua sov thiab glare.
PVB (Polyvinyl Butyral) Interlayer:Cov yas tshwj xeeb uas siv rau hauv cov iav laminated thiab qee qhov siab -kawg architectural iav yog qhov zoo tshaj plaws ntawm kev nqus UV hluav taws xob.
3. Rau daim tawv nqaij: tshuaj pleev thaiv hnub - Ib qho tshuaj tiv thaiv thiab lub cev tiv thaiv
Cov tshuaj pleev thaiv hnub ua haujlwm los ntawm kev nqus UV rays (cov tshuaj lim dej) lossis cuam tshuam thiab tawg lawv (cov lim dej ntxhia).
Cov neeg ua yeeb yam zoo tshaj:
Mineral (lub cev) Blockers: Zinc Oxide thiab Titanium Dioxide.Cov no yog cov undisputed champions raudav -kev tiv thaiv spectrum. Lawv zaum ntawm daim tawv nqaij thiab ua raws li lub cev tiv thaiv, xav txog thiab tawg ob qho tib si UVA thiab UVB rays.Zinc oxide, tshwj xeeb, yog suav tias yog ib qho zoo tshaj plaws dav -spectrum spectrum.muaj, raws li nws npog tag nrho ntau yam ntawm UVA wavelengths.
Chemical Lim:Cov khoom xyaw niaj hnub nyiamAvobenzone (rau UVA), Ecamsule (Mexoryl SX), thiab Tinosorb S & M(hauv cov cheeb tsam uas tau pom zoo) muaj txiaj ntsig zoo thaum tsim kom raug. Lawv lub zog yog nyob rau hauv lub teeb yuag thiab pob tshab.