Okokuqala nokubalulekile kokubili okune-Aqueous (okusekelwe emanzini) kanye ne-UV kuzuze ukusetshenziswa okubanzi ku-Graphics Arts Industry njengamajazi aphezulu aqhudelanayo. Zombili zinikeza ukuthuthukiswa kobuhle nokuvikela, okwengeza inani emikhiqizweni ehlukahlukene ephrintiwe.
Umehluko Ezinkambisweni Zokwelapha
Ngokuyisisekelo, izindlela zokomisa noma zokuphulukisa zazo zombili zihlukile. Izindwangu ezinamanzi zoma lapho izingxenye zokumboza eziguquguqukayo (amanzi angamaphesenti angama-60) ziphoqeleka ukuba zihwamuke noma zifakwe engxenyeni enezimbotshana. Lokhu kuvumela izinto eziqinile zokumboza ukuthi zihlangane zenze ifilimu elincanyana, elomile lapho lithintwa.
Umehluko ukuthi amajikijolo e-UV akhiwe kusetshenziswa izingxenye zoketshezi eziqinile ezingu-100% (akukho ama-volatiles) elaphayo noma e-photopolymerize ngokusabela okuxhumanisa okuphambanayo kwe-photochemical ene-photochemical lapho evezwe ekukhanyeni okukhulu kwe-wavelength ultraviolet (UV). Inqubo yokwelapha idala ushintsho olusheshayo, iguqule uketshezi lube izinto eziqinile ngokushesha (ukuxhumanisa) kwakheka ifilimu eyomile eqinile.
Umehluko Wezinto Zokusebenza
Mayelana nemishini yohlelo lokusebenza, kokubili okuphansi kwe-viscosity aqueous & UV coatings kungasetshenziswa ngempumelelo kusetshenziswa i-inker yokugcina ezinqubweni zokuphrinta zikayinki we-flexo & gravure. Ngokuphambene, iwebhu kanye neshidi-fed izinqubo zokunamathisela inki ye-offset ye-offset zidinga ukuthi i-coater-ekugcineni ye-press-end ukuze kufakwe okokunama-viscosity aphansi we-UV. Izinqubo zesikrini nazo zisetshenziselwa ukusebenzisa i-UV coatings.
Imishini yokunyathelisa ye-Flexo kanye ne-gravure ine-solvent edingekayo & nomthamo wokomisa uyinki onamanzi osuvele ufakiwe ukuze ome kahle izimbotshana ezinamanzi. Izinqubo zokunyathelisa zesethi yokushisa kwe-web offset nazo zibonisiwe ukuthi zinekhono elidingekayo lokumisa ukomisa izimbotshana ezinamanzi. Nokho, kungenye indaba lapho ucabangela ishidi-fed offset litho lokunyathelisa inqubo. Lapha ukusetshenziswa kwezithako ezinamanzi kudinga ukufakwa kwemishini ekhethekile yokomisa ehlanganisa ama-emitters e-infrared, imimese yomoya oshisayo, nemishini yokukhipha umoya.
Umehluko Esikhathini Sokomisa
Ukulethwa okwandisiwe nakho kunconywa ukunikeza isikhathi esengeziwe sokumisa. Uma kucatshangelwa ukomiswa (ukuphulukiswa) kwezigqoko ze-UV noma iziyinki, umehluko usohlotsheni lwemishini ekhethekile yokomisa (yokwelapha) edingekayo. Amasistimu wokuphulukisa ama-UV ahlinzeka ngokuyinhloko ukukhanya kwe-UV okuhlinzekwa ngamalambu e-mercury arc acindezelayo amaphakathi, noma imithombo ye-LED enamandla anele ukuphulukisa ngempumelelo ngesivinini esidingekayo.
Izindwangu ezinamanzi zoma ngokushesha futhi kufanele kuqashelwe ukuze kuhlanzwe noma kunini uma umshini umiswa. Umehluko ukuthi ama-UV ahlala evulekile emshinini inqobo nje uma kungekho ukuchayeka ekukhanyeni kwe-UV. Oyinki be-UV, okokunamathela, namavanisha angomisi noma awaxhume amaseli e-anilox. Asikho isidingo sokuhlanza phakathi kokugijima komshini noma ngempelasonto, ukunciphisa isikhathi sokuphumula nokumosha.
Kokubili okunamanzi kanye ne-UV kunganikeza ukukhanya okuphezulu, kanye nohlu lokuqedwa ukusuka kokucwebezelayo okuphezulu, nge-satin kuye ku-matte. Umehluko ukuthi izintambo ze-UV zinganikeza isiphetho se-gloss esiphezulu kakhulu ngokujula okubonakalayo.
Umehluko Ku-Coatings
Ama-aqueous coatings ngokuvamile anikeza ukuhlikihla okuhle, i-mar, nokumelana ne-block. Imikhiqizo yokumboza enamanzi eyakhelwe ngokukhethekile inganikeza amafutha, utshwala, i-alkali, nokumelana nomswakama. Umehluko ukumbozwa kwe-UV ngokuvamile, hamba igxathu elingaphezulu linikeza ukuhuzuka okungcono kakhulu, i-mar, ukuvimbela, amakhemikhali, nokumelana nomkhiqizo.
Izembatho zamanzi ze-Thermoplastic ze-sheet-fed offset lithot zathuthukiswa zaba yisicupho esimanzi phezu koyinki wokunamathisela okomisa kancane, ukunciphisa noma ukuqeda isidingo sempushana yesifutho esetshenziselwa ukuvimbela ukuchithwa kukayinki. Izinga lokushisa lenqwaba lidinga ukugcinwa kububanzi obungu-85-95®F ukuze kugwenywe ukuthambisa kwe-coating eyomile emazingeni okushisa aphakeme, kanye namandla okusuka nokuvinjwa. Ngokunenzuzo, ukukhiqiza kuyathuthukiswa njengoba amashidi amboziwe angaqhutshekwa acutshungulwe ngokushesha.
Umehluko ukuthi izembatho ze-UV ezifakwe emgqeni wokuvalela okumanzi phezu koyinki be-UV zombili ziyalapheka ekugcineni kokucindezela, futhi amashidi angase aqhutshekiswe futhi ngokushesha. Lapho i-UV enamathela phezu koyinki be-litho evamile kubhekwa njengama-primers anamanzi anconyiwe ukuthi avale futhi anamathele kumayinki ukuze anikeze isisekelo se-UV enamathela. I-Hybrid UV/oyinki abavamile bangasetshenziswa ukunganaki isidingo se-primer.
Ithonya Kubantu, Ukudla, kanye Nendawo Ezungezile
Izimbobo ezinamanzi zinikeza umoya ohlanzekile, i-VOC ephansi, utshwala obuyiziro, iphunga eliphansi, izinto ezingashi, ezingenabuthi, nezingangcolisi. Ngokufanayo, ama-solids angu-100% e-UV akhiqizi i-solvent, ama-VOC angu-zero, futhi awashi. Umehluko uwukuthi amajikijolo e-UV amanzi angapholi aqukethe izingxenye ezisebenzayo ezingase zibe nephunga elibukhali, futhi zingasukela kokuncane kuye kokubi njengezicucu, ezingabangela ukungezwani komzimba kwabanye abantu. Ukuthintana kwesikhumba namehlo kufanele kugwenywe. Okuhle, amakhambi e-UV abizwa ngokuthi “Ubuchwepheshe Bokulawula Okutholakalayo Kakhulu” (BACT) yi-EPA, enciphisa ama-VOC, ukukhishwa kwe-CO2, kanye nezidingo zamandla.
Amajikijolo anamanzi asengozini yokushintshashintsha phakathi nesikhathi sokushicilela ngenxa yokuhwamuka kwezinto eziguquguqukayo, kanye nomthelela we-Ph. Umehluko ukuthi okuqinile okungu-100% Izingubo ze-UV zigcina ukuvumelana ekucindezeleni inqobo nje uma kungekho ukuchayeka ekukhanyeni kwe-UV.
Izingubo ezinamanzi ezomile ziyakwazi ukugaywa kabusha, zibola futhi zibuyiseleke emuva. Umehluko uwukuthi ngenkathi izambatho ze-UV eselashiwe zigaywa kabusha futhi zibuyiseleka, ziyanensa ekuwohlokeni kwe-biodegrade. Lokhu kungenxa yokuthi ukwelapha izingxenye zokumboza ze-cross-link,
ukukhiqiza kokubili izakhiwo eziphakeme zomzimba kanye namakhemikhali.
Izindwangu ezinamanzi zomile ngokucaca kwamanzi ngaphandle kokuphuzi okuhlobene nobudala. Umehluko ukuthi izambatho ze-UV eziphulukisiwe nazo zingabonisa ukukhanya okuphezulu, kodwa kufanele kuthathwe ukunakekelwa ekwakhiweni ngoba ezinye izinto ezingavuthiwe zingaveza ukuphuzi.
Izingubo ezinamanzi ziyakwazi ukuhambisana nemithetho ye-FDA yakho kokubili ukuthintana nokudla okunamafutha okomile kanye/noma okumanzi. Umehluko ukuthi ama-UV anamathelayo, ngaphandle kokwakheka okulinganiselwe kakhulu, awakwazi ukuhambisana nemithetho ye-FDA ngokuthintana nokudla okomile noma okumanzi/okunamafutha.
Izinzuzo
Ngaphandle komehluko, i-aqueous & UV coatings yabelana ngezinzuzo eziningi ngamazinga ahlukahlukene. Isibonelo, ukwakheka okuthile kunganikeza ukushisa, amafutha, utshwala, i-alkali, nokumelana nomswakama. Ukwengeza, banganikeza ukuguquguquka noma ukumelana ne-glue, uhla lwe-COF, ikhono lokuphrinta, ukwamukeleka kwe-foil eshisayo noma ebandayo, ikhono lokuvikela oyinki bensimbi, ukwanda kokukhiqiza, ukucutshungulwa kwe-in-line, amandla okusebenza, ukonga amandla, akukho ukusetha, kanye ne-sheetfed offset ukuqedwa kwempushana yesifutho.
Ibhizinisi lethu e-Cork Industries ukuthuthukiswa kanye nokwakhiwa kwe-Aqueous, energy-curing Ultraviolet (UV), kanye ne-Electron Beam (EB) okukhethekile okunamathelayo nezinamatheliso. I-Cork iyachuma ngekhono layo lokuqamba inoveli, imikhiqizo ekhethekile ewusizo enikeza iphrinta/i-coater yemboni yezithombe inzuzo yokuncintisana.
Isikhathi sokuthumela: Mar-21-2025
