Kwinkqubo yokuvelisa iimveliso zeplastiki ezimhlophe, i-optical brightener isongezo esiyimfuneko.Ukongeza i-agent emhlophe kwiimveliso zeplastiki ezimhlophe kunokuphucula kakhulu ubumhlophe kunye nokukhanya kwemveliso, kunye nokuphucula ngokufanelekileyo ukukhuphisana kwemarike yemveliso.
Nangona kunjalo, okukhona i-optical brightener yongezwayo, kokukhona umphumo ungcono.Izinto eziphathekayo zemveliso yeplastiki, inkqubo yokuvelisa kunye nobushushu bokusebenza zihlukile, kwaye isixa sokongeza sokukhanya okukhanyayo kwahlukile.
Ngoko ke, zeziphi iingxaki kufuneka ziqwalaselwe xa i-optical brightener isetyenziswe kwiiplastiki, makhe sijonge ngezantsi.
1. Isiphumo sokwenziwa mhlophe kwe-optical brightenerUmphumo omhlophe udla ngokubonakaliswa ngobumhlophe.Ukongeza kwixabiso le-optical brightenerused, ubumhlophe bukwanxulumene nokuhambelana kunye nokumelana nemozulu ye-resin.I-optical brightener kunye nokuhambelana kakuhle kunye nokuchasana kwemozulu kunesiphumo esihle sokwenza mhlophe kwaye ihlala ixesha elide.Ngoko ke, eyona ndlela ichanekileyo kunye nesebenzayo yokuvavanya umphumo wobumhlophe be-fluorescent brighteners kukuvavanya ngeesampuli ezincinci.
2. Ubungakanani be-optical brighteneradded Ubungakanani be-optical brightener ngokubanzi phakathi kwe-0.05% kunye ne-0.1%, kunye nemveliso nganye inokongezwa kwisixa esikhulu.Nangona kunjalo, ubungakanani be-optical brighteneradded ayingcono, kodwa kukho umda othile wokuxininisa, odlula ixabiso elithile lomda, kungekhona nje ukuba nefuthe elimhlophe, kodwa i-yellowing iya kubonakala.
3. Impembelelo yee-pigments kwi-whitening effect Ubumhlophe be-optical brightener i-optical complementary effect, eguqula ukukhanya kwe-ultraviolet kwi-blue blue or blue-violet ukukhanya okubonakalayo ukufezekisa injongo yokukhanya.Ngoko ke, amacandelo anempembelelo enkulu kwi-optical brightenerizer ngokwawo yizo ezinokuthatha ukukhanya kwe-ultraviolet, njenge-titanium dioxide, i-absorber ultraviolet njalo njalo.I-Anatase titanium dioxide inokufunxa i-40% yokukhanya kwi-300nm, kwaye uhlobo lwe-rutile lunokufunxa i-90% yokukhanya kwi-380nm.Ngokuqhelekileyo, ukuba i-titanium dioxide kunye ne-optical brightenerare isetyenziswe ngexesha elifanayo, kungcono ukusebenzisa i-anatase titanium dioxide.Ngokuqhelekileyo, xa ugxininiso lwe-optical brightener efanayo, ubumhlophe obuphunyezwayo xa kusetyenziswa i-zinc sulfate yeyona nto inamandla, ilandelwa yi-anatase titanium dioxide, kunye ne-rutile titanium dioxide ibuthathaka.
4. Impembelelo ye-ultraviolet absorbers I-absorber ye-ultraviolet inokuthatha ukukhanya kwe-ultraviolet, kodwa inokunciphisa umphumo omhlophe we-fluorescent whitening agent.Ngoko ke, kwiimveliso ezisebenzisa i-fluorescent whitening agents, kungcono ukhethe i-histamine light stabilizers engatshintshi umbala.Ukuba kufuneka wongeze i-Absorbent ye-UV, kufuneka ukwandise ngokufanelekileyo ubungakanani bokukhanya.Ukongeza, izinto ezinje ngokuba izixhobo zokulungisa zicocekile, ukucoceka kweplastiki, kunye nomxholo wokufuma zonke zinempembelelo ethile kwisiphumo sobumhlophe.
Ixesha lokuposa: Oct-27-2021