Siyazi ukuba iimpahla ezindala ezimhlophe kunye nezinto eziprintiweyo, isitatshi esingundayo, kunye neenkozo zikhupha ukukhanya okutyheli, nto leyo enika abantu imvakalelo 'yomthubi'.Ukuba isixa esifanelekileyo se-agent emhlophe ye-fluorescent yongezwa ngeli xesha, ezii-fluorescent whitening agentsiya kukhupha ukukhanya okuluhlaza okwesibhakabhaka okanye okumfusa okuluhlaza okwesibhakabhaka emva kokufunxa imitha ye-ultraviolet engabonakaliyo, yenze umbala ohambelanayo nokukhanya okutyheli okuthwalwa yinto ngokwayo, ngaloo ndlela ishenxisa into yokuqala "etyheli" kunye nokwenza iimpahla kunye nezinto eziprintiweyo ezibonakala ziphelelwe lixesha. zibonakala zimhlophe njengezitsha (qaphela: ukongeza izikhanyisi zefluorescent kwistatshi esingundayo kwaye iinkozo akukho mthethweni!).Lo ngumgaqo omhlophe we-fluorescent whitening agents.Ukubeka nje, i-agent emhlophe ye-fluorescentI-CBS-Xisebenzisa umbala obonakalayo ukwenza mhlophe, ukuqaqambisa, okanye ukugqamisa izinto ezimhlophe okanye ezinemibala ekhanyayo.Ayenzi nayiphi na i-chemical reaction kunye ne-item, kodwa ixhomekeke kuphela kwisenzo se-optical ukunyusa ubumhlophe bento.Ke ngoko, i-agent emhlophe ye-fluorescent ye-CBS-X ikwabizwa ngokuba "yiarhente emhlophe yokubona" okanye "idayi emhlophe".
Ngaba ubukho be-fluorescence buthetha ukongezwa kwe-agent emhlophe ye-fluorescent ye-CBS-X?
Njengoko kukhankanyiwe ngasentla, i-fluorescence phenomenon yinto ebonakalayo enokuthi ivele kwizinto zendalo ze-fluorescent, ezifana ne-fluorescein kwi-fireflies;Kusenokubakho izinto ezahlukeneyo ze-fluorescent ezithathwe kukwakheka okwenziweyo, njenge-inks ye-fluorescent, ii-coatings ze-fluorescent, iipeni ze-fluorescent, iiplastiki ze-fluorescent, kunye nezinye izinto ekucingelwa ukuba zizinto ezisebenzayo ze-fluorescent, kunye ne-fluorescent whitening agents.I-Fluorescent whitening agents kuphela luhlobo olukhethekileyo lwento ye-fluorescent enobumhlophe kunye nemiphumo ekhanyayo phakathi kweentlobo zezinto eziyinkimbinkimbi ze-fluorescent.Ngoko ke, ukuthetha ngokuthe ngqo, izinto ze-fluorescent azilingani nezikhanyisi ze-fluorescent, kwaye ukujonga iziganeko ze-fluorescence akuthethi ukuba ukongezwa kwezikhanyisi ze-fluorescent !!!
Into yeFluorescence ≠ ubukho befluorescent arhente mhlophe CBS-X
Izikhanyisi zeFluorescent zivelisa i-fluorescence phenomena (kubude obukhethekileyo bamaza)
Njengezongezo zokutya, iintlobo ze-fluorescent brighteners ziyinkimbinkimbi.Ngokusetyenziswa, yahlulwe kwizikhanyiso ze-fluorescent zokwenza iphepha, iiplastiki kunye nezixhobo zokwakheka, amalaphu, izinto zokucoca, ii-inki, izinto zokuncamathelisa kunye nezinye izinto.
Ngokohlelo lweepropathi ze-ionic, izikhanyisi ze-fluorescent zinokwahlulwa kwakhona zibe zizikhanyisi ezingezizo i-ionic, izikhanyisi ze-anionic, izikhanyisi ze-cationic, kunye nezikhanyisi ze-amphoteric.
Ngokutsho kwesakhiwo sekhemikhali, inokwahlulwa ibe ngamacandelo amahlanu: uhlobo lwe-stilbene, uhlobo lwe-coumarin, uhlobo lwe-pyrazoline, uhlobo lwe-benzoxazole, kunye nohlobo lwe-phthalimide imide.
Ngokokunyibilika kwamanzi, kunokohlulwa ngokwamacandelo amabini: ukunyibilika kwamanzi kunye nokunganyibiliki.Iiarhente ezimhlophe ezinyibilikayo zamanzi zisetyenziselwa ukwenza mhlophe iphepha, iingubo, isicoci sempahla yokuhlamba impahla, kunye namalaphu womqhaphu, ngelixa iiarhente ezimhlophe zefluorescent ezinganyibilikiyo zisetyenziswa ikakhulu kwiimveliso ezimhlophe ezinje ngeentsinga zekhemikhali kunye neeplastiki.
Okwangoku, kukho malunga ne-15 ulungelelwaniso lweekhemikhali kunye nezikhanyisi ezingaphezu kwama-400 zefluorescent.Emva kweminyaka yokugutyula intlabathi, ezinye sele ziphelisiwe, yaye ngoku kukho intaphane yeentlobo ezisetyenziswa ngokuqhelekileyo ezisaveliswayo nezisetyenziswayo ehlabathini.
Ixesha lokuposa: May-26-2023