Ngokugxila okwandisiweyo kwizisombululo ezizinzileyo kwiminyaka yakutshanje, sibona imfuno ekhulayo yeebhloko zokwakha ezizinzileyo kunye neenkqubo ezisekelwe emanzini, ngokuchasene ne-solvent based based. Ukunyanga kwe-UV sisixhobo esisebenzayo sobugcisa esaphuhliswa kumashumi eminyaka eyadlulayo. Ngokudibanisa izibonelelo zokunyanga ngokukhawuleza, ukunyanga kwe-UV ekumgangatho ophezulu kunye netekhnoloji yeenkqubo ezisekwe emanzini, kuyenzeka ukuba ufumane okona kulungileyo kwehlabathi ezimbini ezizinzileyo.
Ukwandiswa kokugxila kobugcisa kuphuhliso oluzinzileyo
Uphuhliso olungazange lubonwe ngaphambili lobhubhane ngo-2020, lutshintshe kakhulu indlela esiphila ngayo kunye nesenza ishishini, lukwanefuthe ekugxileni kwiminikelo ezinzileyo kushishino lwemichiza. Izibophelelo ezitsha zenziwa kumanqanaba aphezulu ezopolitiko kumazwekazi amaninzi, amashishini anyanzelekile ukuba ahlaziye izicwangciso zabo kunye nezibophelelo zokuzinza zihlolwe phantsi kwiinkcukacha. Kwaye ikwinkcukacha izisombululo ezinokufunyanwa kwindlela itekhnoloji enokunceda ngayo ukuzalisekisa iimfuno zabantu kunye namashishini ngendlela ezinzileyo. Indlela itekhnoloji enokusetyenziswa ngayo kwaye idityaniswe ngeendlela ezintsha, umzekelo indibaniselwano yeteknoloji ye-UV kunye neenkqubo ezisekelwe emanzini.
Ukutyhala okusingqongileyo kwetekhnoloji yokunyanga ye-UV
Itekhnoloji yokunyanga ye-UV yaphuhliswa sele ikwi-1960s isebenzisa iikhemikhali ezine-unsaturations ukunyanga ngokuvezwa kukukhanya kwe-UV okanye i-Electron Beams (EB). Ngokudibeneyo ekubhekiselwa kuyo njengokunyanga ngemitha, inzuzo enkulu yayikukunyanga kwangoko kunye neempawu ezibalaseleyo zokugquma. Ngexesha le-80s iteknoloji yaphuhliswa kwaye yaqala ukusetyenziswa kwinqanaba lezorhwebo. Njengoko ulwazi lwempembelelo yezinyibilikisi kwimekobume luye lwakhula, kwakunjalo nokuthandwa kokunyanga ngemitha njengendlela yokunciphisa izixa zezinyibilikisi ezisetyenziswayo. Lo mkhwa awuzange unciphise kwaye ukwanda kokwamkelwa kunye nohlobo lwezicelo kuye kwaqhubeka ukususela, kwaye kunjalo nemfuno zombini ngokwemigaqo yokusebenza kunye nokuzinza.
Ukuhamba kude nezinyibilikisi
Nangona i-UV yokunyanga ngokwayo sele iteknoloji ezinzileyo kakhulu, izicelo ezithile zisafuna ukusetyenziswa kwezinyibilikisi okanye ii-monomers (ezinomngcipheko wokufuduka) ukuthoba i-viscosity yesiphumo esanelisayo xa usebenzisa i-coating okanye i-inki. Kutshanje, kwavela umbono wokudibanisa itekhnoloji ye-UV kunye nenye itekhnoloji ezinzileyo: iinkqubo ezisekelwe emanzini. Ezi nkqubo ngokuqhelekileyo mhlawumbi ziluhlobo olunyibilikayo lwamanzi (mhlawumbi nge-ionic dissociation okanye ukuhambelana nokuxutywa kwamanzi) okanye uhlobo lwePUD (i-polyurethane dispersion) apho amaconsi esigaba esingenakuxutywa asasazwa emanzini ngokusetyenziswa kwe-agent agent.
Ngaphandle kokwaleka ngamaplanga
Ekuqaleni iingubo ze-UV eziphuma emanzini ziye zamkelwa ikakhulu lishishini lokugquma iinkuni. Apha kwakulula ukubona iingenelo zokudibanisa izibonelelo ezivela kwizinga eliphezulu lemveliso (xa kuthelekiswa ne-non-UV) kunye nokumelana nemichiza ephezulu kunye ne-VOC ephantsi. Iipropati ezibalulekileyo kwiingubo zokubeka umgangatho kunye nefenitshala. Nangona kunjalo, mva nje ezinye izicelo ziqalile ukufumanisa amandla e-UV esekwe emanzini ngokunjalo. Ushicilelo lwedijithali lwe-UV olusekelwe kumanzi (iinki ze-inkjet) lunokuzuza kwiingenelo zombini ezisekelwe emanzini (i-viscosity ephantsi kunye ne-VOC ephantsi) kunye ne-UV yokunyanga ii-inki (unyango olukhawulezayo, isisombululo esihle kunye nokumelana neekhemikhali). Uphuhliso luqhubela phambili ngokukhawuleza kwaye kusenokwenzeka ukuba izicelo ezininzi ezingakumbi kungekudala ziya kuvavanya amathuba okusebenzisa ukunyanga kwe-UV esekwe emanzini.
Iingubo zase-UV ezisekwe ngamanzi kuyo yonke indawo?
Sonke siyazi ukuba isijikelezi-langa sethu sijongene nemingeni ethile ezayo. Ngokukhula kwenani labemi kunye nemigangatho yokuphila eyandisiweyo, ukusetyenziswa kwaye ngoko ke ulawulo lwemithombo lubaluleke kakhulu kunangaphambili. Ukunyangwa kwe-UV akuyi kuba yimpendulo kuyo yonke le mingeni kodwa inokuba sisiqwenga esinye sepuzzle njengamandla kunye netekhnoloji esebenzayo. Ubuchwephesha bemveli obune-solvent bufuna iinkqubo eziphezulu zamandla okomisa, kunye nokukhululwa kwe-VOC. Ukunyanga kwe-UV kunokwenziwa ngokusetyenziswa kwamandla aphantsi izibane ze-LED kwiinki kunye neengubo ezingenayo i-solvent okanye, njengoko sifundile kweli nqaku, zisebenzisa amanzi kuphela njenge-solvent. Ukukhetha itekhnoloji ezinzileyo kunye neendlela ezizezinye zikuvumela ukuba ungakhuseli kuphela umgangatho wekhitshi lakho okanye ishelufu yencwadi ngesambatho esisebenza kakhulu, kodwa ukhusele kwaye uqaphele izixhobo ezinyiniweyo zeplanethi yethu.
Ixesha lokuposa: May-24-2024
