I-agent emhlophe ye-Fluorescent luhlobo lwe-organic compound enokuphucula ubumhlophe be-fiber fabrics kunye nephepha, eyaziwa ngokuba yi-agent e-optical whitening kunye ne-fluorescent whitening agent.Amalaphu, njl. njlIndlela yokongeza i-agent emhlophe kwimveliso ngoku yamkelwe, kwaye umsebenzi wayo kukuguqula ukukhanya kwe-ultraviolet engabonakaliyo efunnwe yimveliso ibe yimitha ye-blue-violet fluorescent, ehambelana nemitha yokukhanya etyheli yokuqala kwaye ibe kukukhanya okumhlophe, okuthe kratya. kuphucula ukukwazi kwemveliso ukumelana nokukhanya kwelanga.yobumhlophe.Izikhanyisi zisetyenziswa kakhulu kwizinto zamalaphu, iphepha, umgubo wokuvasa, isepha, irabha, iiplastiki, ibala kunye neepeyinti.
I-Brighteners zonke zine-cyclic conjugated systems kulwakhiwo lweekhemikhali, ezifana nezi: stilbene derivatives, phenylpyrazoline derivatives, benzothiazole derivatives, benzimidazole derivatives, coumarin derivatives kunye neNaphthalimide derivatives, njl.Sebenzisa iindlela kunye neempawu ukwahlula izikhanyisi zinokwahlulwa zibe ziindidi ezine:
Uluhlu lubhekisa kwi-ejenti ezimhlophe ezinokuthi zivelise i-cations kwisisombululo esimanzi.Ifanelekile ukwenza mhlophe kwi-acrylic fibers.I-B series optical brighteners ilungele ukuqaqambisa imicu ye-cellulose.Uthotho lwe-C lubhekiselele kuhlobo lwe-agent emhlophe emhlophe esasazwe kwibhafu yedayi phambi kwe-dispersant, ilungele ukwenza mhlophe i-polyester kunye nezinye iintsinga ze-hydrophobic.Uchungechunge lwe-D lubhekiselele kwi-agent emhlophe ye-fluorescent efanelekileyo kwi-protein fiber kunye ne-nylon.Ngokwesakhiwo sekhemikhali, ii-arhente ezimhlophe zinokwahlulwa zibe ziindidi ezintlanu: ① uhlobo lwe-stilbene, olusetyenziswa kwifayibha yomqhaphu kunye neentsinga ezithile zokwenziwa, ukwenza iphepha, ukwenza isepha kunye namanye amashishini, ngefluorescence eluhlaza;② uhlobo lwe-coumarin, enevumba elimnandi Isakhiwo esisisiseko sembotyi ketone, esetyenziswa kwiiplastiki ze-polyvinyl chloride, njl., ine-fluorescence ebluwu eyomeleleyo;③ uhlobo lwepyrazoline, olusetyenziselwa uboya, ipolyamide, iintsinga ze-acrylic kunye nezinye iintsinga, ezinefluorescence eluhlaza;④ uhlobo lwe-benzoxazine, eneMicu ye-acrylic kunye nezinye iiplastiki ezifana ne-polyvinyl chloride kunye ne-polystyrene, ine-fluorescence ebomvu;⑤phthalimide uhlobo, i-polyester, i-acrylic, inayiloni kunye nezinye iintsinga, ezine-fluorescence eluhlaza.Oku kungasentla luhlelo lweearhente ezimhlophe.Xa abathengi bekhetha ii-agent ezimhlophe, kufuneka baqale baqonde iimveliso zabo, ukuze bakhethe i-agent echanekileyo yokumhlophe.Kwaye abathengi kufuneka bazi ukuba xa usebenzisa i-ejenti ezimhlophe, iiarhente ezimhlophe zikhanya kuphela kunye nemibala ehambelanayo, kwaye ayinakuthatha indawo yokucoca imichiza.Ke ngoko, umba onemibala uphathwa ngokuthe ngqo nge-agent emhlophe ngaphandle kwe-bleaching, kwaye umphumo wobumhlophe awunakufunyanwa ngokusisiseko.Kwaye i-ejenti emhlophe ayikho ngaphezulu, kodwa inomlinganiselo othile wokuzalisa.Ukugqithisa ixabiso elithile eliqingqiweyo eliqingqiweyo, kungekhona nje kuphela isiphumo esimhlophe, kodwa kunye ne-yellowing.
Ixesha lokuposa: Jan-24-2022