Emkhakheni wokukhiqiza kanye nesayensi yezinto zokwakha, ukuphishekela ukuthuthukisa ukukhanga kobuhle nokusebenza kwemikhiqizo akupheli. Enye into eqanjiwe ethola ukudonseka okukhulu ukusetshenziswa kwezibani ezikhanyayo, ikakhulukazi kumapulasitiki. Kodwa-ke, umbuzo ojwayelekile ovelayo ukuthi ngabe izibani ezikhanyayo ziyefana yini ne-bleach. Lesi sihloko sihlose ukwenza le migomo iqonde futhi ihlole imisebenzi yayo, izinhlelo zokusebenza, nomehluko.
Iyini i-optical brightener?
Izikhanyisi ze-Optical, aziwa nangokuthi ama-fluorescent whitening agents (FWA), ayinhlanganisela emunca ukukhanya kwe-ultraviolet (UV) futhi akukhiphe kabusha njengokukhanya okuluhlaza okwesibhakabhaka okubonakalayo. Le nqubo yenza okubalulekile kubonakale kumhlophe futhi kugqamile emehlweni omuntu. Izibani ezikhanyayo zisetshenziswa ezinhlobonhlobo zezimboni, ezihlanganisa izindwangu, okokuhlanza kanye namapulasitiki.
Endabeni yamapulasitiki, izibani ezikhanyayo zengezwa phakathi nenqubo yokukhiqiza ukuze kuthuthukiswe ukukhanga okubonakalayo komkhiqizo wokugcina. Ziwusizo ikakhulukazi ekwenzeni izinto zepulasitiki zibukeke zihlanzekile futhi zigqamile, zinxephezela noma yikuphi ukuphuzi noma ukufiphala okungenzeka ngokuhamba kwesikhathi.
Asebenza kanjani ama-optical brighteners?
Isayensi ngemuva kokukhanya okukhanyayo inezimpande zayo ku-fluorescence. Lapho ukukhanya kwe-ultraviolet kungena phezu kwemikhiqizo yepulasitiki equkethe izinto ezikhanyayo ezikhanyayo, inhlanganisela imunca ukukhanya kwe-ultraviolet futhi ikukhiphe kabusha njengokukhanya okuluhlaza okubonakalayo. Lokhu kukhanya okuluhlaza okwesibhakabhaka kukhansela noma yikuphi umbala ophuzi, okwenza upulasitiki ubukeke umhlophe futhi ugqame.
Ukusebenza kweukukhanya okukhanyayokuncike ezicini eziningana, okuhlanganisa uhlobo lwepulasitiki, ukugxila kwe-brightener, kanye nokwakhiwa okuqondile kwenhlanganisela. Izibani ezikhanyayo ezijwayelekile ezisetshenziswa kumapulasitiki zihlanganisa okuphuma ku-stilbene, ama-coumarins kanye nama-benzoxazoles.
Ukusetshenziswa kwe-fluorescent whitening agents kumapulasitiki
Izibani ze-Optical zisetshenziswa kabanzi emikhiqizweni yepulasitiki, kufaka phakathi:
1. Izinto Zokupakisha: Yenza ukupakishwa kukhange nakakhulu futhi uthuthukise ukubukeka komkhiqizo ngaphakathi.
2. Izinto Zasekhaya: Njengezitsha, izitsha, ifenisha, njll., gcina ukubukeka okuhlanzekile nokugqamile.
3. Izingxenye Ezizenzakalelayo: Thuthukisa ubuhle bezingxenye zangaphakathi nezangaphandle.
4. I-Electronics: Qinisekisa ukubukeka kwesimanje endlini kanye nezinye izingxenye.
Ingabe ukukhanya okukhanyayo kuyafana ne-bleach?
Impendulo emfushane ithi cha; ukukhanya okukhanyayo ne-bleach akufani. Nakuba zombili zisetshenziselwa ukuthuthukisa ukubukeka kwempahla, zisebenza ngezindlela ezihluke ngokuphelele futhi zisebenzisa izinhloso ezehlukene.
Yini i-bleach?
I-Bleach iyinhlanganisela yamakhemikhali ngokuyinhloko esetshenziselwa ukubulala amagciwane kanye nezakhiwo ezimhlophe. Izinhlobo ezivame kakhulu ze-bleach yi-chlorine bleach (i-sodium hypochlorite) ne-oxygen bleach (i-hydrogen peroxide). I-Bleach isebenza ngokwephula izibopho zamakhemikhali phakathi kwamabala nama-pigments, isuse ngempumelelo umbala ezintweni.
Umehluko Obalulekile Phakathi Kwe-Optical Brighteners ne-Bleach
1. Indlela yokwenza:
- I-Optical Brightener: Yenza izinto zibonakale zimhlophe futhi zikhanya ngokumunca imisebe ye-UV futhi iyikhiphe kabusha njengokukhanya okwesibhakabhaka okubonakalayo.
- I-Bleach: Isusa umbala ezintweni ngokuphula ngamakhemikhali amabala namabala.
2. Inhloso:
- I-Fluorescent Whitening Agents: Isetshenziswa ngokuyinhloko ukuthuthukisa ukubukeka kwezinto ezibonakalayo ngokuzenza zibonakale zihlanzekile futhi zinempilo kakhudlwana.
- I-Bleach: Isetshenziselwa ukuhlanza, ukubulala amagciwane kanye nokususa amabala.
3. Isicelo:
- I-Fluorescent Whitening Agent: Ivame ukusetshenziswa kumapulasitiki, izindwangu kanye nezihlanzi.
- I-Bleach: Isetshenziswa emikhiqizweni yokuhlanza yasendlini, izinto zokuhlanza izingubo nezihlanzi zezimboni.
4. Ukwakheka Kwamakhemikhali:
- Ama-Fluorescent Whitening Agents: Imvamisa izinhlanganisela eziphilayo ezifana nokuphuma kwe-stilbene, ama-coumarins nama-benzoxazoles.
- I-Bleach: Izinhlanganisela ze-inorganic ezifana ne-sodium hypochlorite (i-chlorine bleach) noma izinhlanganisela eziphilayo njenge-hydrogen peroxide (i-oxygen bleach).
Ukucatshangelwa kokuphepha kanye nemvelo
Izikhanyisi ze-Opticalkanye nama-bleach ngalinye linezinkathazo zalo zokuphepha kanye nemvelo. Izibani ezikhanyayo ngokuvamile zibhekwa njengeziphephile ukuze zisetshenziswe emikhiqizweni yabathengi, kodwa kukhona ukukhathazeka ngokuphikelela kwazo endaweni ezungezile kanye nemiphumela engaba khona empilweni yasemanzini. I-bleach, ikakhulukazi i-chlorine bleach, iyagqwala futhi ikhiqiza imikhiqizo eyingozi efana nama-dioxin, ayingozi empilweni yomuntu kanye nemvelo.
Ekuphetheni
Nakuba izinto ezikhanyayo ezikhanyayo ne-bleach zingabonakala zifana ngenxa yemiphumela yazo yokuba mhlophe, izindlela zazo, izinjongo, kanye nokusetshenziswa kwazo kuhluke kakhulu. Izibani ezikhanyayo ziyinhlanganisela ekhethekile esetshenziselwa ukuthuthukisa ukukhanga okubonakalayo kwamapulasitiki nezinye izinto ngokuzenza zibonakale zimhlophe futhi zikhanya. Ngokuphambene, i-bleach iwukuhlanza okunamandla okusetshenziselwa ukususa amabala nokubulala amagciwane.
Ukuqonda lo mehluko kubalulekile kubakhiqizi, abathengi, nanoma ubani obambe iqhaza kwisayensi yezinto zokwakha noma ukuthuthukiswa komkhiqizo. Ngokukhetha inhlanganisela efanele yohlelo lokusebenza olulungile, singakwazi ukuzuza imiphumela efiselekayo yobuhle nokusebenza kuyilapho sinciphisa imithelela emibi engaba khona empilweni nasendaweni.
Isikhathi sokuthumela: Sep-23-2024