Ukuqonda i-Sun Protection Factor
I-SPF imele iSock Protection Factor. Ukubeka nje, isalathisi se- SPF sikuxelela ukuba ungahlala ixesha elingakanani ilanga ngaphandle kokutshiswa ngeli xesha uloluhlaza, ufanise nokuba ungahlala ixesha elingakanani ilanga ngaphambi kokutshisa ngaphandle kokugqoka esi sikrini. Ngokomzekelo, ukuba kuthatha imizuzu eyi-15 ukutshisa ngaphandle kwesiqabana selanga kwaye usebenzisa i-SPF 10, kuya kuthatha ixesha elide ukutshisa, okanye iiyure ezingama-2.5.
Indlela i-SPF enqunywe ngayo
Inombolo ye-SPF inqunywe ngokuvavanywa kwangaphakathi, ngokubhenca izifundo zabantu kwibala elikhanyayo elithetha ukulinganisa ilanga lelanga-xa imisebe yelanga iphezulu. Ezinye izifundo zibeka isikrini selanga kwaye abanye abazenzi. Isixa sokukhanya esibangela ukubomvu kwesikhumba ekhuselweyo ngelanga, sihlulwe ngumlinganiselo wokukhanya owenza ubomvu kwikhumba elingakhuselekanga yi-SPF.
Oko i-SPF Inombolo kuthetha
I-SPF ephezulu ayibonakali ukukhusela kwelanga eliphezulu-ibonisa ukuba uya kuhlala uvikelekile elangeni ixesha elide. Umzekelo, i-SPF 2 ikhusela isikhumba sakho ngokuphumelelayo njenge-SPF 30. Nangona kunjalo, i-SPF 2 iya kufuna ukusetyenziswa rhoqo. Ukukhuseleka, kungakhathaliseki ukuba yiyiphi i-SPF oyikhethayo, kukulungele ukuphinda usebenzise i- sunscreen ubuncinane nganye iiyure ezimbini, kunye emva kokubhukuda okanye ukukhupha. Enyanisweni, i-American Academy yeDermatology ikhuthaza ukusetyenziswa kwe-SPF 30 kwansuku zonke kwesikhumba.
Ukhuseleko lwelanga
I-SPF inokumelana nokukhuselwa kwimizila yeB ultraviolet yelanga, ebizwa ngokuba yi-UVB emfutshane. Ekuqaleni, imibala ye-UVB yayicingelwa ukuba yimizila kuphela ye-UV yokukhathazeka, kuba ifutshane kwaye ibangela ukushisa kwelanga. Nangona kunjalo, kwaqondwa kamva ukuba i-UVVA imitha ibeka ingozi.
Benza isikhumba kunye negalelo kumhlaza wesikhumba. I-SPF yedwa ayikhuseli kwii-ray ze-UVA, ngoko ke ukuze ufumane ukukhusela kwelanga kunokwenzeka, khangela i-sunscreen okanye ilanga elinika i- UVA kunye ne-UVB ukukhusela-kufuneka ithi "umxube obanzi" okanye "i-spectrum epheleleyo" kwilebula kwaye kufuneka ibe ne-SPF ubuncinane ezingama-30.
UVV
Ukugqoka iimpahla ezinqabileyo kwelanga yinkqubo eyongezelelekileyo enokuyithatha, ngaphaya kokugqoka i-sunscreen, ukukhusela ulusu lwakho elangeni. Kubaluleke kakhulu ingcamango enkulu yabantwana abancinci, abakhutheleyo abanokuba neengxaki zokuhlala behlala imizuzu embalwa ngelixa umzali ezama ukufaka i-sunscreen, ingakumbi abo bahlala bephuma ngaphandle kwidama, elwandle okanye elwandle.
Kodwa zikhethile malunga naluphi uhlobo lwezambatho ezikhuselekileyo zelanga ozithengayo. Ngokuqinisekileyo, iikhati elide elingenamikhono libandakanya ulusu oluninzi kwaye lukhusela ilanga elingaphezulu kune-tank top, kunye ne-floppy, inkulu-brimmed ikhuphe ikhusela ubuso ngaphezu kwesicathulo se-baseball. Kodwa nangona unxibe kwiingubo ezisuka entloko ukuya enzwaneni, eso sambatho asinakusetyenziswa kakhulu xa ilanga lingenza indlela yalo ihambe ngokukhawuleza.
Ingubo yenziwe ngefayili ephosiweyo okanye ehlanganiswe kunye, kwaye xa isicatshulwa sihlolwe phantsi kwe-microscope, izikhala phakathi kwala mafayili zibonakala.
Imilayezo ye-UV ingena ngaphaya kwezo zithuba ize ifike kwesikhumba. Ukugqithisa ngokuqinileyo isicangci, njenge-denim, akunakwenzeka ukuba imilayezo ye-UV ingafikelela. Ingubo encinci kakhulu eqiniweyo, njengelinen, kunokwenzeka ukuba i-UV ray iya kufikelela.
Ngelishwa, iingubo ezingapheliyo, ezifudumele ezifana nelineni kunye nekotoni ziquka iziqhamo ezivulekileyo ezivumela ii-ray ezininzi ukuba zingene. Ngoko ukuba unxibe izinto ezifana nalezo, kufuneka usasebenzise i-SPF kumalungu omzimba wakho onxibekileyo, kuxhomekeke kwisigqwina ogqobileyo.
Iingubo ze-UPF ziingubo ezenziwe ngento ebizwa ngokuba yinto yokukhusela i-ultraviolet.
Omnye umzekelo webhanki ejolise kulolu hlobo lweingubo ze-UPF yiCoolibar, eyenza izambatho kunye nezixhobo zamadoda, amabhinqa, amakhwenkwe namantombazana. Iingubo ze-UPF ziba zixhaphake ngokuqhelekileyo, ingakumbi kwiingubo zezingane kunye neenxweme ezifana nezinto zokugada.
Umthombo:
http://www.skincancer.org/prevention/sun-protection/clothing/protection