Ukuqonda i-Sun Protection Factor
I-SPF imelela i-Sun Protection Factor. Kalula nje, ukulinganisa kwe- SPF kukutshela ukuthi ungahlala isikhathi esingakanani elangeni ngaphandle kokushiswa ngenkathi ugqoke isikrini selanga, uma uqhathaniswa nokuthi ungahlala isikhathi esingakanani ilanga ngaphambi kokuba ushise ngaphandle kokugqoka lolo suku. Isibonelo, uma kuthatha amaminithi angu-15 ukushisa ngaphandle kwesihenqo selanga bese usebenzisa i-SPF 10, kuzokuthatha izikhathi ezingu-10 ukushisa, noma amahora angu-2.5.
Indlela i-SPF enqunywe ngayo
Inombolo ye-SPF inqunywa ngokusebenzisa ukuhlolwa kwangaphakathi, ngokuveza izihloko zabantu kumbala okhanyayo okuhloswe ukulingisa ilanga lelanga-lapho imisebe yelanga ishaya kakhulu. Ezinye izifundo zigqoka isikrini selanga kanti abanye abakwenzi. Inani lokukhanya elibumba ububomvu esikhumbeni esilondolozwe yilanga, esihlukaniswe isibalo sokukhanya esenza ukuba kube nokubomvu esikhumbeni esingavinjelwe yi-SPF.
Okushiwo yi-SPF Number
I-SPF ephakeme ayibonisi ukuvikelwa kwelanga eliphakeme-libonisa ukuthi uzohlala uvikelekile elangeni isikhathi esiningi. Isibonelo, i-SPF 2 ivikela isikhumba sakho ngokuphumelelayo njenge-SPF 30. Noma kunjalo, i-SPF 2 izodinga ukusetshenziswa njalo. Ukuze uphephe, kungakhathaliseki ukuthi ukhetha i-SPF, kungcono ukuphinda usebenzise i- sunscreen okungenani njalo amahora amabili, kanye nasemuva kokubhukuda noma ukuthuthumela. Eqinisweni, i-American Academy of Dermatology incoma ukusetshenziswa kwansuku zonke kwe-SPF 30 kubo bonke isikhumba esikhombisiwe.
Ukuvikelwa kwe-Broad-Spectrum Ilanga
I-SPF ihlola kuphela ukuvikelwa emisebeni ye-ultraviolet B yelanga, ebizwa nge-UVB okwesikhashana. Ekuqaleni, imisebe ye-UVB yayicatshangwa ukuthi yiyona kuphela imisebe ye-UV engakhathazeka ngayo, ngoba iyancipha ubude futhi ibangele ukushisa kwelanga. Kodwa-ke, kwaqondakala kamuva ukuthi imisebe ye-UVA iphinde ibe nezingozi.
Bayakhula isikhumba futhi banomthelela esikhungweni somdlavuza wesikhumba. I-SPF yedwa ayivikeleki emiphakathini ye-UVA, ngakho-ke ukuze uthole ukuvikeleka kwelanga okungcono kunokwenzeka, bheka isihenqo selanga noma ukukhanya kwelanga okuhlinzeka kokubili ukuvikelwa kwe- UVA ne-UVB -kufanele ukuthi "isisindo esikhulu" noma "i-spectrum egcwele" kulebula futhi kufanele ibe ne-SPF okungenani engu-30.
SPF izingubo
Ukugqoka izingubo eziphephile zelanga kuyisilinganiso esikhulu esengeziwe ongathatha, ngaphandle kokugqoka isikrini selanga, ukusiza ukuvikela isikhumba sakho elangeni. Kubaluleke kakhulu izingane ezincane, ezikhuthele ezingase zibe nenkinga ukuhlala zihlale imizuzu embalwa ngenkathi umzali ezama ukufaka isikrini, ikakhulukazi labo abahlala bephuma echibini, echibini noma olwandle.
Kodwa khetha ukuthi yikuphi uhlobo lwezingubo eziphephile zelanga ozithengayo. Ngokuqinisekile, ihembe eligijimayo lihlanganisa isikhumba esingaphezulu futhi linikeza ukuvikelwa kwelanga ngaphezulu kune-tank top, futhi i-floppy, i-width-brimmed hat ivikela ubuso kangcono kunesikhwama se-baseball. Kodwa ngisho noma ugqoke izingubo ezivela enhlokweni kuya emlenzeni, lezo zembatho akuzona ezisebenzisekayo kakhulu uma ilanga lingenza indlela yalo ngqo phakathi kwezingubo zomzimba.
Izindwangu zenziwe ngezingcingo eziboshwe noma eziboshwe ndawonye, futhi lapho ishidi lihlolwe ngaphansi kwe-microscope, izikhala eziphakathi kwalezi zindwangu zibonakala.
Imisebe ye-UV ingangena phakathi kwalezi zindawo futhi ifinyelele isikhumba. Ukwakheka okunamandla kakhulu, njengama-denim, cishe kuncane ukuthi imisebe ye-UV ingadlula. Indwangu encane kakhulu eqinile, njengelineni, cishe kungenzeka ukuthi imisebe ye-UV ingadlula.
Ngeshwa, izindwangu ezilula, ezivutha njengezelineni nekotini zifaka izinqwaba ezivulekile ezivumela ama-ray amaningi we-UV ukungena. Ngakho-ke uma ugqoke izinto ezinjengezo, kufanele usasebenzise i-SPF ezingxenyeni zomzimba wakho ezihlanganisiwe, kuye ngokuthi ingubo yakho ogqoke ngayo.
Izingubo ze-UPF yizingubo ezenziwe ngento okuthiwa i-ultraviolet yokuvikela.
Esinye isibonelo somkhiqizo ogxile kulolu hlobo lwezingubo ze-UPF yiCoolibar, okwenza izingubo nezesekeli zamadoda, abesifazane, abafana namantombazane. Izambatho ze-UPF ziya ngokuya zivame kakhulu, ikakhulukazi zokugqoka izingane kanye ne-beachwear izinto ezifana nezigceme.
Umthombo:
http://www.skincancer.org/prevention/sun-protection/clothing/protection