Njengoko kugxilwe kakhulu kwizisombululo ezizinzileyo kwiminyaka yakutshanje, sibona imfuno ekhulayo yeebhloko zokwakha ezizinzileyo kunye neenkqubo ezisekelwe emanzini, ngokungafaniyo nezixhobo ezisekelwe kwi-solvent. Unyango lwe-UV lubuchwepheshe obusebenzisa izixhobo eziphucukileyo obuphuhliswe kwiminyaka embalwa eyadlulayo. Ngokudibanisa iingenelo zonyango olukhawulezayo nolusemgangathweni ophezulu lwe-UV kunye netekhnoloji yeenkqubo ezisekelwe emanzini, kunokwenzeka ukufumana ezona hlabathi zimbini zizinzileyo.
Ukugxila ngakumbi kwezobuchwepheshe kuphuhliso oluzinzileyo
Uphuhliso olungazange lubonwe ngaphambili lobhubhane ngo-2020, olutshintshe kakhulu indlela esiphila ngayo nesiqhuba ngayo ishishini, lube nefuthe ekugxileni kwiminikelo ezinzileyo kwishishini leekhemikhali. Izibophelelo ezintsha zenziwa kumanqanaba aphezulu ezopolitiko kumazwekazi aliqela, amashishini ayanyanzeleka ukuba ahlole amaqhinga awo kwaye izibophelelo zozinzo ziyajongwa ukuya kuthi ga kwiinkcukacha. Kwaye kukwiinkcukacha izisombululo ezinokufunyanwa zendlela iteknoloji enokunceda ngayo ukuzalisekisa iimfuno zabantu kunye namashishini ngendlela ezinzileyo. Indlela iteknoloji enokusetyenziswa kwaye idityaniswe ngayo ngeendlela ezintsha, umzekelo indibaniselwano yetekhnoloji ye-UV kunye neenkqubo ezisekelwe emanzini.
Uphuhliso lwetekhnoloji yokulungisa i-UV kwindalo esingqongileyo
Itekhnoloji yokulungisa i-UV yaphuhliswa sele ngeminyaka yoo-1960 kusetyenziswa iikhemikhali ezingenamanzi ukuze zinyange xa zichatshazelwa kukukhanya kwe-UV okanye ii-Electron Beams (EB). Ezibizwa ngokuba yi-radiation curing, inzuzo enkulu yayikukulungisa ngokukhawuleza kunye neempawu ezintle zokugquma. Ngeminyaka yoo-1980, itekhnoloji yaphuhliswa yaza yaqala ukusetyenziswa kwinqanaba lorhwebo. Njengoko ulwazi ngempembelelo ye-solvents kwindalo esingqongileyo lwalusanda, kwanda ukuthandwa kwe-radiation curing njengendlela yokunciphisa ubungakanani be-solvents ezisetyenziswayo. Le ndlela ayizange yehle kwaye ukwanda kokwamkelwa kunye nohlobo lwezicelo kuye kwaqhubeka ukususela ngoko, kwaye kunjalo nangemfuno ngokubhekiselele ekusebenzeni nasekuzinzeni.
Ukusuka kwizinyibilikisi
Nangona ukunyanga i-UV ngokwayo sele kuyiteknoloji ezinzileyo kakhulu, ezinye izicelo zisafuna ukusetyenziswa kwezinyibilikisi okanye ii-monomers (ezinomngcipheko wokufuduka) ukuze kwehliswe i-viscosity ukuze kubekho iziphumo ezanelisayo xa kufakwa i-coating okanye i-inki. Kutshanje, kuye kwavela ingcamango yokudibanisa iteknoloji ye-UV kunye nenye iteknoloji ezinzileyo: iinkqubo ezisekelwe emanzini. Ezi nkqubo ngokubanzi ziluhlobo olunyibilikayo emanzini (nokuba kungokuhlukana kwe-ionic okanye ukuhambelana okuxutyiweyo namanzi) okanye uhlobo lwe-PUD (polyurethane dispersion) apho amaconsi esigaba esingaxutyiweyo asasazeka emanzini ngokusebenzisa i-arhente yokusasazeka.
Ngaphaya kokwambathiswa komthi
Ekuqaleni ii-UV coating ezisetyenziswa emanzini ziye zasetyenziswa kakhulu lishishini le-wood coating. Apha bekulula ukubona iingenelo zokudibanisa iingenelo ezivela kwizinga eliphezulu lemveliso (xa kuthelekiswa ne-non-UV) kunye nokumelana okuphezulu kweekhemikhali kunye ne-VOC ephantsi. Iipropati ezibalulekileyo kwii-coating zomgangatho kunye nefenitshala. Nangona kunjalo, kutshanje ezinye izicelo ziye zaqala ukufumanisa amandla e-UV esekwe emanzini. Ukuprinta kwedijithali ye-UV esekwe emanzini (ii-inkjet inks) kunokuxhamla kwiingenelo zombini ezisekwe emanzini (i-viscosity ephantsi kunye ne-VOC ephantsi) kunye nee-ink ze-UV coating (unyango olukhawulezayo, isisombululo esihle kunye nokumelana neekhemikhali). Uphuhliso luhamba phambili ngokukhawuleza kwaye kusenokwenzeka ukuba ezinye izicelo ezininzi ziya kuvavanya amathuba okusebenzisa i-UV coating esekwe emanzini.
Ngaba kukho ii-UV coating ezisekelwe emanzini kuyo yonke indawo?
Sonke siyazi ukuba iplanethi yethu ijongene nemingeni ethile ezayo. Njengoko inani labantu likhula kwaye imigangatho yokuphila iyanda, ukusetyenziswa kunye nolawulo lwezixhobo kuba yinto ebaluleke kakhulu kunangaphambili. Ukulungiswa kwe-UV akuyi kuba yimpendulo kuzo zonke ezi ngxaki kodwa kunokuba yinxalenye yephazili njengetekhnoloji esebenza ngamandla kunye nezixhobo. Iitekhnoloji zemveli ezithwala izinyibilikisi zifuna iinkqubo zamandla aphezulu ukuze zome, kunye nokukhutshwa kwe-VOC. Ukulungiswa kwe-UV kungenziwa ngokusebenzisa izibane ze-LED ezinamandla aphantsi kwii-inki kunye neengubo ezingenazinyibilikisi okanye, njengoko sifundile kweli nqaku, kusetyenziswa amanzi kuphela njengesinyibilikisi. Ukukhetha ubuchwepheshe obuzinzileyo kunye nezinye iindlela kukuvumela ukuba ungakhuseli nje kuphela umgangatho wekhitshi okanye ishelufu yeencwadi ngengubo esebenza kakuhle, kodwa ukhusele kwaye uqaphele izixhobo ezinqongopheleyo zeplanethi yethu.
Ixesha leposi: Meyi-24-2024
