Kwimimandla yokuvelisa kunye nenzululwazi yemathiriyeli, ukufuna ukunyusa umtsalane wobuhle kunye nokusebenza kweemveliso akunakuphela. Enye into entsha efumana amandla amakhulu kukusetyenziswa kwezikhanyisi zamehlo, ngakumbi kwiiplastiki. Nangona kunjalo, umbuzo oqhelekileyo ovelayo kukuba ingaba izikhanyisi ze-optical ziyafana ne-bleach. Eli nqaku lijolise ekunciphiseni le migaqo kwaye iphonononge imisebenzi yayo, usetyenziso, kunye nomahluko.
Yintoni i-optical brightener?
Izikhanyisi zamehlo, ekwabizwa ngokuba yi-fluorescent whitening agents (FWA), ziikhompawundi ezifunxa ukukhanya kwe-ultraviolet (UV) kwaye ziphinde zikhuphe ukukhanya okuluhlaza okubonakalayo. Le nkqubo yenza ukuba izinto ezibonakalayo zibonakale zimhlophe kwaye zikhanya ngakumbi kwiliso lomntu. Izikhanyisi ze-Optical zisetyenziswa kuluhlu olubanzi lwamashishini, kubandakanywa iimpahla ezilukiweyo, ii-detergents kunye neeplastiki.
Kwimeko yeeplastiki, izikhanyisi ze-optical zongezwa ngexesha lenkqubo yokuvelisa ukunyusa isibheno esibonakalayo semveliso yokugqibela. Ziluncedo kakhulu ekwenzeni izinto zeplastiki zibukeke zicocekile kwaye zidlamkile, zihlawulela nakuphi na ukutyheli okanye ubuthuntu obunokwenzeka ngokuhamba kwexesha.
Zisebenza njani izikhanyisi zamehlo?
Inzululwazi emva kwezikhanyisi zamehlo ineengcambu zayo kwi-fluorescence. Xa ukukhanya kwe-ultraviolet kubetha umphezulu weemveliso zeplastiki ezinezikhanyisi ze-optical, i-compound ifunxa ukukhanya kwe-ultraviolet kwaye iphinde ikhuphe ukukhanya okuluhlaza okubonakalayo. Oku kukhanya okwesibhakabhaka kucima nayiphi na i-tint etyheli, yenze iplastiki ibonakale imhlophe kwaye idlamkile ngakumbi.
Ukusebenza kweizikhanyisi zamehlokuxhomekeke kwizinto ezininzi, kubandakanywa uhlobo lweplastiki, ukuxinwa kwe-brightener, kunye nokuqulunqwa okuthe ngqo kwekhompawundi. Izikhanyisi eziqhelekileyo zokukhanya ezisetyenziswa kwiiplastiki ziquka i-stilbene derivatives, i-coumarins kunye ne-benzoxazoles.
Ukusetyenziswa kwe-fluorescent whitening agents kwiiplastiki
Izikhanyisi ze-Optical zisetyenziswa ngokubanzi kwiimveliso zeplastiki, kubandakanya:
1. Izinto zokupakisha: Yenza ukupakishwa kubonakale ngakumbi kwaye uphucule ukubonakala kwemveliso ngaphakathi.
2. Izinto Zasekhaya: Njengezikhongozeli, izitya, ifenitshala, njl.njl., gcina inkangeleko ecocekileyo neqaqambileyo.
3. Amacandelo e-Auto: Phucula i-aesthetics yangaphakathi kunye neendawo zangaphandle.
4. I-Electronics: Qinisekisa ukubukeka, ukubukeka kwale mihla kwizindlu kunye namanye amacandelo.
Ngaba izikhanyisi zamehlo ziyafana nebleach?
Impendulo emfutshane nguhayi; izikhanyisi zamehlo kunye nebleach azifani. Ngelixa zombini zisetyenziselwa ukukhulisa inkangeleko yemathiriyeli, zisebenza ngeendlela ezahlukeneyo ngokupheleleyo kwaye zisebenza ngeenjongo ezahlukeneyo.
Yintoni iblitshi?
Ibleach yikhompawundi yeekhemikhali esetyenziselwa ikakhulu ukubulala iintsholongwane kunye neempawu ezimhlophe. Ezona ntlobo zixhaphakileyo zebleach yichlorine bleach (sodium hypochlorite) kunye neoksijini bleach (ihydrogen peroxide). Ibleach isebenza ngokwaphula amaqhina ekhemikhali phakathi kwamabala kunye neepigments, isusa umbala kwizinto eziphathekayo.
Umahluko oPhambili phakathi kwe-Optical Brighteners kunye neBletshi
1. Indlela yokwenza:
-I-Optical Brightener: Yenza izinto zibonakale zimhlophe kwaye ziqaqambile ngokufunxa imitha ye-UV kwaye uyikhuphe kwakhona njengokukhanya okuluhlaza okubonakalayo.
- Ibletshi: Isusa umbala kwimathiriyeli ngokonakalisa amabala kunye nebala ngekhemikhali.
2. Injongo:
- I-Fluorescent Whitening Agents: Isetyenziselwa ukunyusa umtsalane obonakalayo wemathiriyeli ngokuzenza zibonakale zicocekile kwaye zidlamkile.
- Iblitshi: Isetyenziselwa ukucoca, ukubulala iintsholongwane kunye nokususwa kwamabala.
3. Isicelo:
-Fluorescent Whitening Agent: Isetyenziswa ngokuqhelekileyo kwiiplastiki, iilaphu kunye nezicoci.
- Iblitshi: Isetyenziswa kwiimveliso zokucoca izindlu, izicoci zempahla kunye nezicoci zemizimveliso.
4. Ukuqulunqwa kwemichiza:
- I-Fluorescent Whitening Agents: Ngokuqhelekileyo iikhompawundi ze-organic ezifana ne-stilbene derivatives, i-coumarins kunye ne-benzoxazoles.
-Bleach: Iikhompawundi ze-inorganic ezifana ne-sodium hypochlorite (i-chlorine bleach) okanye i-organic compounds njenge-hydrogen peroxide (i-oxygen bleach).
Iingqwalasela zoKhuseleko nokusiNgqongileyo
Izikhanyisi zamehlokunye neeblitshi nganye ineenkxalabo zayo zokhuseleko kunye nokusingqongileyo. Izikhanyisi ze-Optical zibhekwa njengekhuselekile ukusetyenziswa kwiimveliso zabathengi, kodwa kukho iinkxalabo malunga nokuzingisa kwazo kwindalo kunye nemiphumo enokubakho kubomi basemanzini. Ibleach, ingakumbi ichlorine bleach, iyadleka kwaye ivelisa izinto ezinobungozi ezifana needioxins, eziyingozi kwimpilo yabantu nakwindalo esingqongileyo.
Ukuququmbela
Nangona izikhanyisi zamehlo kunye nebleach zinokubonakala zifana ngenxa yeziphumo zazo ezimhlophe, iindlela zazo, iinjongo, kunye nokusetyenziswa kwazo zahluke kakhulu. Izikhanyisi ze-Optical zikhompawundi ezikhethekileyo ezisetyenziselwa ukunyusa isibheno esibonakalayo seeplastiki kunye nezinye izinto ngokuzenza zibonakale zimhlophe kwaye zikhanya. Ngokwahlukileyo, iblitshi sisicoci esinamandla esisetyenziselwa ukususa amabala kunye nokubulala iintsholongwane kwindawo.
Ukuqonda lo mahluko kubalulekile kubavelisi, abathengi, kunye nabani na obandakanyekayo kwisayensi yezinto okanye uphuhliso lwemveliso. Ngokukhetha i-compound echanekileyo kwisicelo esifanelekileyo, sinokufikelela kwi-aesthetic efunwayo kunye neziphumo zokusebenza ngelixa sinciphisa iimpembelelo ezinokuthi zibe nefuthe elibi kwimpilo kunye nokusingqongileyo.
Ixesha lokuposa: Sep-23-2024