Pankhani ya sayansi yopangira zinthu ndi zinthu, kufunafuna kupititsa patsogolo kukongola ndi magwiridwe antchito azinthu sikutha. Chimodzi mwazinthu zatsopano zomwe zikuyenda bwino kwambiri ndikugwiritsa ntchito zowunikira zowunikira, makamaka mu mapulasitiki. Komabe, funso lodziwika bwino lomwe limadza ndikuti ngati zowunikira zowoneka bwino ndizofanana ndi bleach. Nkhaniyi ikufuna kusokoneza mawuwa ndikuwunika momwe amagwirira ntchito, momwe amagwiritsira ntchito, komanso kusiyana kwawo.
Kodi kuwala kowala ndi chiyani?
Zowunikira zowunikira, omwe amadziwikanso kuti fluorescent whitening agents (FWA), ndi mankhwala omwe amayatsa kuwala kwa ultraviolet (UV) ndikutulutsanso ngati kuwala kowoneka kwa buluu. Izi zimapangitsa kuti zinthu ziwoneke zoyera komanso zowala m'maso mwa munthu. Zowunikira zowunikira zimagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikiza nsalu, zotsukira ndi mapulasitiki.
Pankhani ya mapulasitiki, zowunikira zowoneka bwino zimawonjezeredwa panthawi yopanga kuti zithandizire kukopa komaliza. Zimathandiza makamaka popanga zinthu zapulasitiki kuti ziwoneke zoyera komanso zowoneka bwino, zomwe zimalipira chikasu kapena kufota komwe kungachitike pakapita nthawi.
Kodi zowunikira zamagetsi zimagwira ntchito bwanji?
Sayansi kumbuyo kwa kuwala kwa kuwala kwachokera ku fluorescence. Kuwala kwa ultraviolet kukafika pamwamba pa zinthu zapulasitiki zomwe zili ndi zounikira zowoneka bwino, chinthucho chimatenga kuwala kwa ultraviolet ndikuwunikiranso ngati kuwala kwabuluu. Kuwala kwa buluu kumeneku kumachotsa utoto uliwonse wachikasu, kupangitsa pulasitiki kukhala yoyera komanso yowoneka bwino.
Kuchita bwino kwakuwala kuwalazimadalira pazifukwa zingapo, kuphatikizapo mtundu wa pulasitiki, kuchuluka kwa chowunikira, ndi mapangidwe enieni a pawiri. Zowunikira zowoneka bwino zomwe zimagwiritsidwa ntchito m'mapulasitiki zimaphatikizapo zotumphukira za stilbene, coumarins ndi benzoxazoles.
Kugwiritsa ntchito fluorescent whitening agents mu mapulasitiki
Zowunikira zamagetsi zimagwiritsidwa ntchito kwambiri pazinthu zapulasitiki, kuphatikiza:
1. Zopangira Package: Pangani zonyamula kukhala zowoneka bwino ndikuwonjezera mawonekedwe azinthu mkati.
2. Zinthu Zapakhomo: Monga zotengera, ziwiya, mipando, ndi zina zotero, zimasunga maonekedwe aukhondo ndi owala.
3. Zida Zagalimoto: Sinthani kukongola kwamkati ndi kunja.
4. Zamagetsi: Onetsetsani kuti mukuwoneka bwino, zamakono m'nyumba ndi zigawo zina.
Kodi zowunikira ndi zofanana ndi bulitchi?
Yankho lalifupi ndi ayi; zowunikira ndi bleach sizifanana. Ngakhale kuti zonsezi zimagwiritsidwa ntchito kupititsa patsogolo maonekedwe a chinthu, zimagwira ntchito zosiyanasiyana ndipo zimagwira ntchito zosiyanasiyana.
Kodi bulitchi ndi chiyani?
Bleach ndi mankhwala omwe amagwiritsidwa ntchito pophera tizilombo toyambitsa matenda komanso kuyera. Mitundu yodziwika bwino ya bulichi ndi chlorine bleach (sodium hypochlorite) ndi oxygen bleach (hydrogen peroxide). Bleach imagwira ntchito pophwanya mgwirizano wamankhwala pakati pa madontho ndi utoto, ndikuchotsa bwino mtundu kuzinthu.
Kusiyana Kwakukulu Pakati pa Optical Brighteners ndi Bleach
1. Njira yochitira:
- Optical Brightener: Imapangitsa kuti zinthu ziziwoneka zoyera komanso zowala potengera kuwala kwa UV ndikuzitulutsanso ngati kuwala kwabuluu.
- Bleach: Imachotsa utoto kuzinthu pophwanya madontho ndi utoto.
2. Cholinga:
- Fluorescent Whitening Agents: Amagwiritsidwa ntchito makamaka kukulitsa kukopa kwa zinthu pozipangitsa kuti ziwoneke zoyera komanso zowoneka bwino.
- Bleach: Amagwiritsidwa ntchito poyeretsa, kupha tizilombo toyambitsa matenda komanso kuchotsa madontho.
3. Kugwiritsa ntchito:
- Fluorescent Whitening Agent: Amagwiritsidwa ntchito kwambiri mu mapulasitiki, nsalu ndi zotsukira.
- Bleach: Amagwiritsidwa ntchito poyeretsa m'nyumba, zotsukira zovala komanso zotsukira mafakitale.
4. Mapangidwe a Chemical:
- Fluorescent Whitening Agents: Nthawi zambiri zinthu zachilengedwe monga stilbene zotumphukira, coumarins ndi benzoxazoles.
- Bleach: Zinthu zopanga zinthu monga sodium hypochlorite (chlorine bleach) kapena zinthu zachilengedwe monga hydrogen peroxide (oxygen bleach).
Kuganizira za Chitetezo ndi Zachilengedwe
Zowunikira zowunikirandi ma bleach aliyense ali ndi chitetezo chawo komanso zovuta zachilengedwe. Zowunikira zowunikira nthawi zambiri zimawonedwa ngati zotetezeka kuti zigwiritsidwe ntchito pazinthu zogula, koma pali zodetsa nkhawa za kulimbikira kwawo zachilengedwe komanso zomwe zingakhudze zamoyo zam'madzi. Bleach, makamaka chlorine bleach, amawononga ndipo amapanga zinthu zovulaza monga dioxin, zomwe zimawononga thanzi la munthu komanso chilengedwe.
Pomaliza
Ngakhale zounikira zowoneka bwino ndi bleach zitha kuwoneka zofanana chifukwa cha kuyera kwawo, momwe amagwirira ntchito, zolinga zawo, ndikugwiritsa ntchito kwake ndizosiyana kwambiri. Optical lighteners ndi mankhwala apadera omwe amagwiritsidwa ntchito kupititsa patsogolo maonekedwe a mapulasitiki ndi zipangizo zina powapangitsa kuoneka oyera komanso owala. Mosiyana ndi zimenezi, bulichi ndi chotsukira champhamvu chomwe chimagwiritsidwa ntchito kuchotsa madontho ndi kuthira mankhwala pamalo.
Kumvetsetsa kusiyana kumeneku ndikofunikira kwa opanga, ogula, ndi aliyense amene akuchita nawo sayansi yazinthu kapena chitukuko chazinthu. Posankha kaphatikizidwe koyenera kuti tigwiritse ntchito moyenera, titha kukwaniritsa zokometsera zomwe tikufuna komanso magwiridwe antchito pomwe tikuchepetsa zomwe zingawononge thanzi ndi chilengedwe.
Nthawi yotumiza: Sep-23-2024