M'chilimwe, kuyambira padzuwa, khungu lathu limadziwika kwambiri, zomwe sizingoyambitsa kuwotchedwa, komanso kukhala koyambitsa matenda osiyanasiyana. Izi ndizofanana ndi moyo watsiku ndi tsiku mumzinda, zomwe ndi, zolankhula za tchuthi cha pagombe. Chifukwa chake, sikofunikira kunyalanyaza kugwiritsa ntchito kwa dzuwa, kusankha komwe kumakhala kosiyanasiyana pamsika. Koma imaphatikiza imodzi - kupezeka kwa spf pachidule pa phukusi. Tsoka ilo, pa intaneti zambiri zotsutsana za SPF. Tiyeni tiwone komwe chowonadi ndi chomwecho, ndipo kumene zopeka.
Zomwe zimayesedwa ndi SPF
SPF kapena yoteteza dzuwa ndi chikhalidwe chomwe chimathandiza khungu lathu kuteteza ku ultraviolet. Opanda dzuwa ali ndi spf kuchokera pa 6 mpaka 50. Nthawi zina, amalemba 50+, koma sizowonekeratu, zomwe zimamvetsetsa wopanga zomwe zili pansi pa nambala iyi.
Manambala atayimirira pambuyo pa zilembo spf nthawi zambiri amafotokozedwa ngati kuwonjezeka kwa dzuwa popanda zotsatira za khungu munthawi yodziwika. Ndiye kuti, ngati khungu lanu padzuwa ladzuwa m'mphindi 10 (kutengera mtundu wa khungu, mtengo uwu akhoza kuyambira mphindi 5 mpaka 30), kenako zimawoneka ngati spf 20, zikuwoneka ngati 10 × 20 = Mphindi 200. Malongosoledwewa ali ndi vuto lalikulu: limatembenuka kuti SPF 6 ndi Spf 50 ndi yoteteza khungu chimodzimodzi, pokhapokha ngati zingachitike mphindi 60, ndipo wachiwiri - Kutembenuka, kuteteza komwe kumapereka njira. SPF 15 idzateteza ku 93.3%, SPF 30 - Kuyambira 96,7%, ndi SPF 50 ndi kuchokera 98%. Siziyenera kuyankhula zotetezedwa kwambiri ngati zikuchitika, pokhapokha ngati pali gawo la peresenti. M'mbuyomu, oyang'anira ochenjera, omwe adatengedwa kale, adalemba pa phukusi la SPF 100 ndi 150. Lero ndizoletsedwa, chifukwa sizimamveka ndipo sizikumveka bwino.
Ngati tikambirana za chitetezo chokwanira 15, ndiye kuti, kugwiritsa ntchito ndalama zotere sikokwanira. Kulankhula mosamalitsa, kumadumpha mokwanira ultraviolet kuyika zowonongeka pakhungu. Mwachitsanzo, ndi SPF 6 pakhungu, 16.7% ya mphezi idzapeza, yomwe, siingawonekere kuti ndi mlingo wotetezeka.
Chitetezo cha chitetezo chikhala nthawi yayitali bwanji
Mtengo wa SPF womwe mungafunike kuti mutsimikizire mwachindunji, kutengera mtundu wa khungu, koma osati kuchokera nthawi yomwe amayenera kukhala padzuwa. Ngati tikambirana za kutalika kwa zotsatira zake, zimatengera mtundu wa zosefera, komanso momwe zimakhudzira.
Zosefera ndi mankhwala (mwachitsanzo, autobenzon, benzophenone) ndi thupi (zinc oxide kapena Titanium Dioxide). Amasiyana pa mfundo za ntchito. Nthawi yomweyo, zosefera zamankhwala zimagwiritsidwa ntchito akagwiritsidwa ntchito pamoyo watsiku ndi tsiku - pagombe amatha kubweretsa mavuto ambiri kuposa abwino. Patatha maola awiri, kapangidwe ka iwo kumayamba kuzisintha iwo padzuwa, ndipo ndizotheka kuti muwateteze kuchotsera mosamala ndikuyambiranso chida.
Zosefera zakuthupi ndizochepa sonohliva, pagombe ndizoyenera kuzigwiritsa ntchito. Koma pang'onopang'ono amataya mwayi wawo wothandiza, pakutsuka kapena kufufutidwa chifukwa cha zovuta zamakina. Chifukwa chake ayeneranso kusinthidwa maola onse 3-5, komanso nthawi iliyonse mukasamba. Ma sunscreens amadzi omwe amakopa makasitomala ena opanga amapangidwa kuti ateteze khungu mosambira (inde, madzi amaphonya ultraviolet). Komabe, atabweranso m'mphepete mwa nyanja, chitetezo choterocho chiyeneranso kukonzedwanso.
Pa speratra ya UV
Sizingatheke kutchulanso mawonekedwe a ma ray a ultraviolet. Kuwala kwa mawonekedwe mu (UVB) kumadziwika, zomwe zimayambitsa kuwotchera, ndipo kuwala kwa mawonekedwe, a (UVA) kumayambitsa ukalamba. Kuyambira koyamba kumalepheretsa dzuwa. Kuteteza ku zowala za Speptrum, ndipo pamakhala chizindikiritso cha UVA pa phukusi. Chifukwa chake mwachilungamo kuyenera kunenedwa kuti limagwirira ntchito kuzolowera mphete pakhungu silaphunziridwa kwathunthu, ndipo akatswiri ena amakayikira kuchita bwino kwa chitetezo chotere.
Mutha kunena kuti ndikofunikira kuti mugwiritse ntchito malangizo wamba kuti muchepetse kujambula - kuchepetsa nthawi yokhala padzuwa kwambiri - kuyambira 12 mpaka 15 maola. Musaiwale kuti zovala wamba zimasowanso kuchuluka kwa mawonekedwe owoneka bwino a specty, ndiye kuti, zimateteza ku kuwotcha, koma sizipulumutsa kuyambira kukalamba, kuwoneka kwa makwinya ndi mafuta.
Kodi zokongoletsera zimateteza?
Ponena za zokongoletsera zokongoletsera ndi SPF, zoteteza kulibe kwambiri, ndipo ndi dzuwa, ndibwino kutsatirabe maulendo apadera. Komabe, nthawi zambiri zodzoladzola zodzoladzola. Mwachitsanzo, ufa wokongoletsa umayamwa bwino ultraviolet, ndikuteteza 15 mpaka 20 kutetezedwa. Nthawi yomweyo, sizimapezeka pores pakhungu, zomwe ndizofunikira kwambiri nthawi yachilimwe.
Sikofunikira kulabadira mtengo waukulu wa ndalama ndi kutchuka kwa mtunduwo. Kuyambira zodzikongoletsera ndikulonjeza SPF 30 kapena 50, kapena zinthu zina zodziwika bwino ", simuyenera kuyembekeza china chake chapadera. Zonsezi sizachilendo kuposa mawu. Pachgombebe amagwiritsabe ntchito njira wamba, koma yotsimikizika zomwe zimatsimikiziridwa kuti chitetezo chodalirika.