Uyinki wokunyathelisa i-gravure yoketshezi uyoma uma umuntu esebenzisa indlela ebonakalayo, okungukuthi, ngokuhwamuka kwezinyibilikisi, kanye noyinki wezingxenye ezimbili ngokwelapha ngamakhemikhali.
Kuyini ukuphrinta kwe-Gravure
Uyinki wokunyathelisa i-gravure yoketshezi uyoma uma umuntu esebenzisa indlela ebonakalayo, okungukuthi, ngokuhwamuka kwezinyibilikisi, kanye noyinki wezingxenye ezimbili ngokwelapha ngamakhemikhali.
Yiziphi izinzuzo kanye nokungalungi kokunyathelisa nge-gravure?
Ikhwalithi ephezulu yokuphrinta
Inani likayinki elisetshenziswa ekuphrinteni nge-gravure likhulu, ihluzo nombhalo kunomuzwa oqondile, futhi izendlalelo zicebile, imigqa icacile, futhi ikhwalithi iphezulu. Iningi lokuphrinta izincwadi, omagazini, izithombe, ukupakishwa kanye nokuhlobisa kuphrintwa nge-gravure.
Ukuphrinta okuphezulu
Umjikelezo wokwenza amapuleti wokuphrinta i-gravure mude, ukusebenza kahle kuphansi, futhi izindleko ziphezulu. Kodwa-ke, ipuleti lokuphrinta lihlala isikhathi eside, ngakho-ke lifanelekela ukuphrinta ngobuningi. Uma i-batch inkulu, kulapho inzuzo iba phezulu, futhi uma uphrinta nge-batch encane, inzuzo iba phansi. Ngakho-ke, indlela ye-gravure ayifanelekeli ukuphrinta ama-batch amancane ezimpawu zokuhweba.
(1) Izinzuzo: ukuvezwa kweyinki cishe kungama-90%, futhi umbala ucebile. Ukukhiqiza umbala okunamandla. Ukumelana okuqinile kwesakhiwo. Inani lezithombe likhulu. Ukusetshenziswa kwamaphepha ahlukahlukene, ngaphandle kwezinto zephepha nakho kungaphrintwa.
(2) Okubi: izindleko zokwenza amapuleti zibiza kakhulu, izindleko zokunyathelisa nazo zibiza kakhulu, umsebenzi wokwenza amapuleti uyinkimbinkimbi kakhulu, kanti inani elincane lamakhophi anyathelisiwe alifaneleki.
Izithako ezingaphansi komhlaba
I-gravure ingasetshenziswa ezintweni eziningi ezahlukene, kodwa ivame ukusetshenziselwa ukuphrinta iphepha eliphezulu kanye nefilimu yepulasitiki.
Ukubukeka kwamaphrinti: Ukwakheka kuhlanzekile, kuyafana, futhi akukho zimpawu zokungcola ezisobala. Izithombe nombhalo kubekwe kahle. Umbala wepuleti lokuphrinta uyafana, iphutha losayizi lokuphrinta okuncane alidluli ku-0.5mm, ukuphrinta okuvamile akudluli ku-1.0mm, kanye nephutha lokuphrinta ngokweqile kwezinhlangothi zangaphambili nangemuva alidluli ku-1.0mm.
Imibuzo Evame Ukubuzwa
Ukwehluleka kokuphrinta i-gravure kubangelwa kakhulu amapuleti okuphrinta, uyinki, ama-substrate, abacindezeli, njll.
(1) Umbala weyinki ulula futhi awulingani
Izinguquko zombala weyinki ezenzeka ngezikhathi ezithile ziyenzeka ezintweni eziphrintiwe. Izindlela zokususa zifaka: ukulungisa ukuzungeza kwe-plate roller, ukulungisa i-engeli kanye nokucindezela kwe-squeegee noma ukuyishintsha ngentsha.
(ii) Umbhalo uthambile futhi unoboya
Isithombe sento ephrintiwe silinganisiwe futhi sinama-pasty, kanti umkhawulo wesithombe nombhalo ubonakala sengathi unama-burrs. Izindlela zokususa yilezi: ukususa ugesi ongaguquki ebusweni be-substrate, ukwengeza izinyibilikisi ezi-polar kuyinki, ukwandisa ngokufanele ingcindezi yokuphrinta, ukulungisa indawo ye-squeegee, njll.
3) Isenzakalo sokuthi uyinki ovimbayo uyoma emgodini we-mesh wepuleti lokuphrinta, noma umgodi we-mesh wepuleti lokuphrinta ugcwele izinwele zephepha kanye nempuphu yephepha, sibizwa ngokuthi ukuvimba ipuleti. Izindlela zokususa yilezi: ukwandisa okuqukethwe kwezinyibilikisi kuyinki, ukunciphisa ijubane lokomisa uyinki, kanye nokuphrinta ngephepha elinamandla aphezulu ebusweni.
4) Ukuchitheka kweyinki kanye nokubona amabala engxenyeni yensimu yento ephrintiwe. Izindlela zokususa yilezi: ukufaka uwoyela weyinki oqinile ukuze kuthuthukiswe ukujiya kweyinki. Lungisa i-engeli ye-squeegee, wandise isivinini sokuphrinta, shintsha ipuleti lokuphrinta eline-deep mesh ngepuleti lokuphrinta eline-shallow mesh, njll.
5) Amamaki okuklwebheka: Izimpawu ze-squeegee ezintweni eziphrintiwe. Izindlela zokususa zifaka phakathi ukuphrinta ngoyinki ohlanzekile ngaphandle kokungena kwezinto zangaphandle. Lungisa i-viscosity, ukoma, nokunamathela kweyinki. Sebenzisa i-squeegee esezingeni eliphezulu ukulungisa i-engeli phakathi kwe-squeegee nepuleti.
6) Ukuna kwe-pigment
Umkhuba wokukhanyisa umbala ophrintiwe. Izindlela zokususa yilezi: ukuphrinta ngoyinki ohlakazekile kahle kanye nokusebenza okuzinzile. Izithasiselo zokulwa nokuhlangana kanye nokulwa nokuna kwemvula zengezwa kuyinki. Goqa kahle bese uvuselela uyinki ethangini loyinki njalo.
(7) Isenzakalo samabala e-inki ezintweni eziprintiwe ezinamathelayo. Izindlela zokususa yilezi: khetha ukuphrinta kwe-inki ngesivinini esisheshayo sokuguquguquka, ukwandisa izinga lokushisa lokomisa noma ukunciphisa ijubane lokuphrinta ngokufanele.
(8) Ukucinywa kweyinki
Uyinki ophrintiwe efilimini yepulasitiki awunamatheli kahle futhi ukhuhlwa ngesandla noma ngamandla omshini. Izindlela zokususa yilezi: ukuvimbela ifilimu yepulasitiki ekuswakameni, khetha ukuphrinta uyinki ngokuhambisana kahle nefilimu yepulasitiki, uphinde ufake ifilimu yepulasitiki, futhi uthuthukise ukucindezeleka kobuso.
Izitayela zentuthuko
Ngenxa yokuvikelwa kwemvelo kanye nezizathu zempilo, ukudla, imithi, ugwayi, utshwala kanye nezinye izimboni zinaka kakhulu ukuvikelwa kwemvelo kwezinto zokupakisha kanye nezinqubo zokunyathelisa, kanti amabhizinisi okunyathelisa ama-gravure anaka kakhulu indawo yezindawo zokunyathelisa. Uyinki nama-varnish anobungani nemvelo azothandwa kakhulu, izinhlelo zokucindezela ezivaliwe kanye namadivayisi okushintsha okusheshayo kuzokwenziwa zithandwa kakhulu, futhi imishini yokucindezela ama-gravure evunyelaniswe noyinki osekelwe emanzini izosetshenziswa kabanzi.
Isikhathi sokuthunyelwe: Meyi-22-2023
