Raws li qhov kev thov rau kev tiv thaiv lub hnub ua haujlwm zoo txuas ntxiv mus, cov tshuaj pleev ib ce kev lag luam tau pom zoo tshaj plaws nyob rau hauv cov khoom xyaw siv hauv kev siv tshuaj tiv thaiv. Cov ntawv no tshawb nrhiav kev taug kev ntawm cov khoom siv ntawm cov tshuaj muaj tshuaj lom cua sov, ua rau cov khoom tiv thaiv hnub tiv thaiv niaj hnub tiv thaiv cov khoom lag luam niaj hnub.
Thaum ntxov kev tshawb nrhiav thaum ntxov:
Nyob rau hauv thaum ntxov ntawm thaum ntxov formulations, ntuj cov khoom xyaw zoo li cov nroj tsuag cov tshuaj, cov zaub mov, thiab roj tau siv los muab kev tiv thaiv lub hnub. Thaum cov khoom xyaw no muaj qee qib ntawm UV hluav taws xob thaiv, lawv cov kev ua tau zoo tau coj los ua qhov cuam tshuam ntev ntev.
Taw qhia txog cov ntxaij lim dej organic:
Qhov kev sib tawg hauv tshuaj tiv thaiv kev lom zem tuaj nrog cov lus qhia txog cov ntxaij lim dej, tseem hu ua UV nqus. Hauv nruab nrab-20th xyoo pua, cov kws tshawb fawb pib tshawb txog cov organic sib xyaw ua ke ntawm kev nqus UV hluav taws xob. Benzyl salicylate tshwm sim los ua cov tho kev hauv daim teb no, muab kev tiv thaiv UV muaj kev tiv thaiv. Txawm li cas los xij, kev tshawb fawb ntxiv yog tsim nyog los txhim kho nws txoj kev ua tau zoo.
Txhim kho hauv UVB tiv thaiv:
Qhov nrhiav pom ntawm para-aminobenzoic acid (kaba) hauv xyoo 1940 tau cim ib qho kev tiv thaiv tseem ceeb hauv lub hnub tiv thaiv. Kaba tau dhau los ua thawj cov khoom xyaw hauv Sunscreens, ua tau zoo nqus UVB Rays lub luag hauj lwm. Txawm hais tias nws ua tau zoo, xws li tsis muaj kev txwv, xws li cov tawv nqaij uas muaj kuab lom thiab ua xua, ua rau cov khoom siv xav tau lwm yam.
Kev Tiv Thaiv Dav Dav:
Raws li kev paub txog kev tshawb fawb tau nthuav dav, lub ntsiab ua ke txav ntawm kev tsim cov khoom xyaw uas tuaj yeem tiv thaiv ob UVB thiab UVA rays. In the 1980s, avobenzone emerged as an effective UVA filter, complementing the existing UVB protection provided by PABA-based sunscreens. Txawm li cas los xij, avoBenzone yog kev ruaj khov nyob rau hauv lub hnub ci yog kev sib tw, ua rau kev hloov tshiab ntxiv.
Photostility thiab txhim kho UVA tiv thaiv:
Txhawm rau daws qhov tsis txaus ntseeg ntawm UVA cov ntxaij lim dej thaum ntxov, cov kws tshawb nrhiav tau tsom rau kev txhim kho photosability thiab dav-spectrum tiv thaiv. Cov khoom xyaw xws li octocrylene thiab bemotrizinol tau tsim, muab cov kev tiv thaiv zoo dua thiab kev tiv thaiv UVA zoo dua. Cov kev nce qib no tseem txhim kho kev ua haujlwm thiab kev ntseeg tau ntawm Sunscreens.
Organic UVA cov ntxaij lim dej:
Nyob rau hauv xyoo tsis ntev los no, organic UVA cov ntxaij lim dej tau muaj qhov tshwm sim vim lawv qhov kev tiv thaiv UVA tshwj xeeb thiab txhim kho kev ruaj khov. Cov tebchaw xws li mowoxorl sx, mexoryl xl, thiab tinosorb s tau hloov kho Sunscreens, muab kev tiv thaiv UVA zoo UVA. Cov khoom xyaw no tau sib xyaw ua ke rau hnub niaj hnub tiv thaiv cov qauv.
Kev Tsim Kev Tsim Kev Tsim Kev:
Nrog rau kev cog qoob loo, kev tsim kho cov kev tsim qauv tshiab tau ua rau lub luag haujlwm tseem ceeb hauv kev txhim kho cov tshuaj tiv thaiv kev ua yeeb yam. Nanotechnology tau pua txoj kev rau micronized hais, muab cov pob tshab cov kev pab them thiab txhim kho UV kev nqus. Cov thev naus laus zis tau ua haujlwm los txhim kho kev ruaj khov thiab ua kom zoo dua kev xa khoom siv, ua kom tau txiaj ntsig siab tshaj plaws.
Kev Txiav Txim Siab:
Nrog kev nkag siab loj hlob ntawm Sunscreen Cov khoom xyaw 'kev cuam tshuam rau tib neeg kev noj qab haus huv thiab ib puag ncig, kev tswj hwm lub cev tau siv cov txheej txheem thiab kev txwv. Cov khoom xyaw xws li OxyBenzone thiab Octinoxate, paub txog lawv qhov kev cuam tshuam ecological, tau ua kom muaj kev cuam tshuam rau kev lag luam los tsim kho lwm txoj kev xaiv, ua ntej kev nyab xeeb thiab kev ruaj ntseg.
Xaus:
Cov Evolution ntawm cov khoom xyaw rau hauv Tshuaj Sunscreens tau hloov kho lub hnub tiv thaiv hauv kev lag luam tshuaj pleev ib ce. Los ntawm thaum ntxov erraulic lim kom txoj kev txhim kho UVA kev tiv thaiv qib siab UVA thiab cov kev lag luam tsim kev tsim kho tshiab, kev lag luam tau ua ntau txoj hlua. Kev tshawb fawb txuas ntxiv thiab kev tsim cov kev tsim cov kev nyab xeeb, thiab ua haujlwm zoo dua, thiab ib puag ncig zoo nkauj tiv thaiv lub hnub rau cov neeg siv khoom.
Lub Sijhawm Post: Mar-20-2024