Izinyathelo zokuphepha zenqubo ye-varnish yokuphrinta ye-UV
Ingaphezulu lezinto zokuphrinta ze-uv zamukela isimiso sokuphrinta se-piezoelectric inkjet. I-inki ye-uv ifuthwe ngokuqondile phezu kwempahla futhi yelashwe ukukhanya kwe-ultraviolet okukhishwa okuholwa yi-UV. Kodwa-ke, enqubweni yokukhiqiza yokuphrinta yansuku zonke, ngoba ezinye izinto ezisetshenziswayo Ingaphezulu libushelelezi, licwebezela, noma indawo yokufaka isicelo idinga kakhulu, kuyadingeka ukusebenzisa inqubo yokwelapha yokugcoba noma yokuvanisha ukuze kuzuzwe ukumelana nokushisa okuphezulu, ukungangeni kwamanzi, ukumelana nokungqubuzana nokunye. izici.
Ngakho-ke yiziphi izinyathelo zokuphepha zenqubo ye-varnish yokuphrinta ye-uv?
1. I-coating isetshenziselwa ukuthuthukisa ukunamathela kwe-inki ye-uv. Ama-ink ahlukene e-uv asebenzisa i-coatings ehlukene, futhi izinto zokuphrinta ezihlukene zisebenzisa i-coatings ehlukene. Uma ungazi ukuthi ungayikhetha kanjani i-coating efanelekile, Ungaxhumana nomkhiqizi wephrinta ye-flatbed ye-uv.
2. I-varnish ifafazwe ebusweni bephethini ngemva kokunyathelisa iphethini. Ngakolunye uhlangothi, iveza umphumela ogqamile, futhi ngakolunye uhlangothi, ithuthukisa ukumelana nesimo sezulu futhi iphinda kabili isikhathi sokugcina iphethini.
3. I-coating ihlukaniswe nge-coating eyomisa ngokushesha kanye ne-baking coating. Owokuqala udinga kuphela ukusulwa ngokuqondile ukuze uphrinte iphethini, futhi lokhu okulandelayo kudinga ukufakwa kuhhavini ukubhaka, bese uyikhipha bese uphrinta iphethini. Inqubo kufanele ilandelwe ngokuqinile, ngaphandle kwalokho umphumela we-coating ngeke ubonakale.
4. Kunezindlela ezimbili zokusebenzisa i-varnish, enye iwukusebenzisa isibhamu se-spray sikagesi, esilungele imikhiqizo ye-batch encane. Okunye ukusebenzisa i-curtain coater, efanelekile emikhiqizweni eminingi. Zombili lezi zisetshenziswa ngemuva kokuphrinta kwe-Uv.
5. Uma i-varnish ifafazwa ebusweni beyinki ye-UV ukuze wenze iphethini, ukuchithwa, ama-blistering, ukuxebuka, njll. kuvela, okubonisa ukuthi i-varnish ayikwazi ukuhambisana neyinki ye-UV yamanje.
6. Isikhathi sokugcina sokumboza kanye ne-varnish ngokuvamile unyaka ongu-1. Uma uvula ibhodlela, sicela ulisebenzise ngokuzikhandla. Uma kungenjalo, ngemva kokuvula ibhodlela, lizowohloka uma lingavaliwe isikhathi eside futhi ngeke lisetshenziswe.
