Zoyera, zowala, zosavuta, ndi zoyera, zomwe zikuyimira chiyero.
Anthu ambiri amakonda zinthu zoyera, ndipo zogula nthawi zambiri zimapangidwa zoyera.Kaŵirikaŵiri, anthu amene amagula zinthu zoyera kapena kuvala zoyera amasamala kuti zoyerazo zisakhale ndi banga.Koma pali nyimbo ina imene imati, “M’chilengedwe chonsechi, kanani mpaka kalekale.”Ngakhale mutayesetsa bwanji kuti zinthu zimenezi zisadetsedwe, zidzasanduka zachikasu paokha.Kwa sabata, chaka, kapena zaka zitatu, mumavala chojambulira chamutu kuti mugwire ntchito tsiku lililonse, ndipo malaya oyera omwe simunavale mu zovala zanu mwakachetechete amasanduka achikasu.
Ndipotu, ulusi wachikasu wa zovala, sole zotanuka za nsapato, ndi mabokosi am'makutu apulasitiki ndikuwonetsa kukalamba kwa polima, komwe kumadziwika kuti chikasu.Yellowing imatanthawuza zochitika za kuwonongeka, kukonzanso, kapena kugwirizanitsa mamolekyu a zinthu za polima pakagwiritsidwa ntchito, chifukwa cha kutentha, kuwala kwa dzuwa, makutidwe ndi okosijeni, ndi zinthu zina, zomwe zimapangitsa kuti pakhale magulu ena achikuda.
Magulu achikudawa nthawi zambiri amakhala carbon carbon double bonds (C=C), carbonyl magulu (C=O), magulu a imine (C=N), ndi zina zotero.Pamene chiwerengero cha conjugated carbon carbon double bonds ifika 7-8, nthawi zambiri imawoneka yachikasu.Nthawi zambiri, mukawona kuti zinthu za polima zikuyamba kukhala zachikasu, kuchuluka kwa chikasu kumawonjezeka.Izi zili choncho chifukwa kuwonongeka kwa ma polima ndi machitidwe a chain, ndipo njira yowonongeka ikayamba, kuwonongeka kwa maunyolo a molekyulu kumakhala ngati domino, ndipo gawo lililonse limagwa imodzi ndi imodzi.
Pali njira zambiri zosungira zinthuzo kukhala zoyera.Kuwonjezera titaniyamu woipa ndi fulorosenti whitening wothandizira angathe kumapangitsanso whitening zotsatira za zinthu, koma sizingalepheretse zinthu chikasu.Kuti muchepetse chikasu cha ma polima, zotsitsimutsa kuwala, zowumitsa kuwala, zozimitsa, ndi zina zotero.Zowonjezera zamitundu iyi zimatha kuyamwa mphamvu zomwe zimatengedwa ndi kuwala kwa ultraviolet mu kuwala kwa dzuwa, kubweretsa polima kukhala wokhazikika.Ndipo ma anti-thermal oxidants amatha kugwira ma radicals aulere opangidwa ndi okosijeni, kapena kuletsa kuwonongeka kwa unyolo wa polima kuti athetsere zomwe zimachitika pakuwonongeka kwa unyolo wa polima.Zida zimakhala ndi moyo, ndipo zowonjezera zimakhalanso ndi moyo.Ngakhale zowonjezera zimatha kuchepetsa kuchuluka kwa chikasu cha polima, iwowo amalephera pang'onopang'ono pakagwiritsidwe ntchito.
Kuphatikiza pa kuwonjezera zowonjezera, ndizothekanso kupewa chikasu cha polima kuchokera kuzinthu zina.Mwachitsanzo, kuti muchepetse kugwiritsa ntchito zinthu pa kutentha kwakukulu komanso malo owala akunja, ndikofunikira kugwiritsa ntchito zokutira zopepuka kuzinthu pozigwiritsa ntchito panja.Chikaso sichimangokhudza maonekedwe, komanso chimagwira ntchito ngati chizindikiro cha kuwonongeka kwa makina kapena kulephera!Zida zomangira zikayamba kukhala zachikasu, m'malo mwatsopano ziyenera kusinthidwa posachedwa.
Nthawi yotumiza: Dec-20-2023