Umbono: Eminyakeni yamuva nje, ukuphrinta kombala we-pantong kuye kwasetshenziswa kabanzi ekunyatheliseni imikhiqizo yokupakisha iphepha.Umbala we-Pantong ubhekisela komunye umbala ngaphandle kwemibala emine kanye nengxube yemibala emine, ephrintiwe ngokukhethekile ngoyinki othile.Inqubo yokuphrinta yombala we-Pantong ivamise ukusetshenziselwa ukupakisha ukuphrinta umbala wangemuva wendawo enkulu.Leli phepha lichaza kafushane amakhono okulawula ukuphrinta kombala we-pantong, okuqukethwe kwereferensi yabangane:
Ukuphrinta kombala we-pantong
Ukuphrinta kombala we-Pantong kubhekisela enqubweni yokuphrinta lapho eminye imibala ngaphandle kophuzi, i-magenta, i-cyan noyinki omnyama isetshenziselwa ukuphindaphinda umbala wombhalo wesandla wokuqala.
Imikhiqizo yokupakishwa noma izembozo zezincwadi nomagazini ngokuvamile kwakhiwa ngamabhulokhi anombala afanayo anemibala ehlukene noma amabhlogo anemibala eshintsha kancane kancane namagama.Lawa mabhuloki emibala namagama angaphrintwa ngokudlulele ngemibala emine eyinhloko ngemva kokuhlukaniswa ngemibala, noma imibala ye-pantong inganikezwa, bese kuba uyinki owodwa wombala we-pantong ongaphrintwa kubhulokhi yombala ofanayo.Ekucabangeni okuphelele kokuthuthukisa ikhwalithi yokuphrinta kanye nokulondoloza inani lama-overprints, ukuphrinta kombala we-pantong kufanele kukhethwe.
1, ukutholwa kombala wePantong
Njengamanje, iningi lamabhizinisi asekhaya okupakisha nawokuphrinta ekulinganisweni kombala we-antong nokulawula kusho ukuncika kakhulu kulwazi lwabasebenzi ukuze bakhiphe uyinki wombala we-pantong.Ububi balokhu ukuthi isilinganiso sikayinki we-pantong asinembile ngokwanele, isikhathi sokuthunyelwa side, ithonya lezici ezizimele.Amanye amabhizinisi amakhulu anamandla okupakisha nawokuphrinta asebenzise isistimu yokufanisa uyinki wombala we-pantong ukuze aphathwe.
Isistimu yokufanisa uyinki wombala we-pantong yakhiwe ngekhompuyutha, isofthiwe yokufanisa imibala, i-spectrophotometer, ibhalansi yokuhlaziya, ithuluzi likayinki olinganayo nethuluzi lokubonisa uyinki.Ngalolu hlelo, amapharamitha wephepha noyinki avame ukusetshenziswa yinkampani aqoqwa kusizindalwazi, isoftware yokufanisa imibala isetshenziselwa ukufanisa umbala wendawo onikezwe ikhasimende ngokuzenzakalelayo, kanye nenani le-CIELAB, inani lokuminyana kanye △E kukhona. kulinganiswa nge-spectrophotometer, ukuze ukuphathwa kwedatha kayinki wokufanisa umbala we-pantong kubonakale.
2. Izinto ezithinta umbala we-pantong
Enqubweni yokuphrinta, kunezici eziningi eziholela ekuphambukeni kwe-chromatic ekukhiqizeni uyinki wombala we-pantong.Lezi zici kuxoxwa ngazo ezigabeni ezilandelayo.
Umthelela wephepha embala:
Umthelela wephepha kumbala wogqinsi lukayinki ubonakala kakhulu ezicini ezintathu
1) Ubumhlophe bephepha: Iphepha elinobumhlophe obuhlukile (noma elinombala othile) linemiphumela ehlukile ekubonisweni kombala kongqimba lukayinki wokuphrinta.Ngakho-ke, ekukhiqizeni kwangempela kufanele uzame ukukhetha ubumhlophe obufanayo bokuphrinta iphepha, ukuze kuncishiswe ubumhlophe bephepha kumbala wokuphrinta.
2) ukumunca ikhono: uyinki efanayo ephrintiwe ngaphansi kwezimo ezifanayo ukuze ezahlukene ukumunca ikhono lephepha, kuyoba ezahlukene ukucwebezela zokunyathelisa.Iphepha elinganamatheli nephepha lokumboza uma kuqhathaniswa, ungqimba lukayinki omnyama luzovela lumpunga, lufiphele, futhi ungqimba lukayinki olunemibala luzoveza ukukhukhuleka, ngoyinki o-cyan no-magenta ohlanganisa ukusebenza kombala kubonakala kakhulu.
3) ukucwebezela nokushelela: ukucwebezela kokuphrinta kuncike ekucwebezeleni nasekubushelelezini kwephepha.Ingaphezulu lephepha lokuphrinta liyi-semi-gloss surface, ikakhulukazi iphepha eliboshwe.
Umthelela wokwelashwa kwendawo embala:
Ukwelashwa okungaphezulu kwemikhiqizo yokupakisha kuhlanganiswe ikakhulukazi ifilimu (ifilimu ekhanyayo, ifilimu ye-matt), i-glazing (ikhava yamafutha okukhanya, uwoyela we-matt, i-UV varnish) njalonjalo.Ukuphrinta ngemva kwalokhu kwelashwa kwendawo, kuzoba namazinga ahlukene okushintsha kwe-hue nokushintsha kombala.Ukumboza ifilimu ekhanyayo, ukumboza amafutha agqamile namafutha e-UV, ukuminyana kombala kuyanda;Lapho ugcoba ifilimu ye-matte futhi umboze uwoyela we-matte, ukuminyana kombala kuyancipha.Izinguquko zamakhemikhali ikakhulukazi zivela ku-glue eboshwe, uwoyela we-UV base, uwoyela we-UV uqukethe izinhlobonhlobo zezinyibilikisi eziphilayo, ezizokwenza umbala wongqimba lukayinki wokuphrinta ushintshe.
Umthelela womehluko wesistimu:
Yenziwe ngedivayisi yokusabalalisa, bonisa umbala we-inki "womile" inqubo, inqubo yokubamba iqhaza, ngaphandle kwamanzi nokunyathelisa "ukunyathelisa okumanzi", uketshezi lokumanzi luhilelekile ekunyatheliseni, ngakho-ke ku-offset inki yokuphrinta nakanjani izokwenzeka i-emulsion yamanzi-in-oyili, inki ye-emulsion ngenxa yokushintsha kokushintsha kwesimo sezinhlayiya ze-pigment kungqimba lukayinki, nakanjani ukukhiqiza umbala, imikhiqizo ephrintiwe nayo inombala omnyama, hhayi okhanyayo.
Ngaphezu kwalokho, umehluko we-desalinator kanye ne-desalinator eyomile ibe nomthelela othile embala.Ukuzinza kukayinki osetshenziselwa ukuxuba umbala we-pantong, ukujiya kongqimba lukayinki, ukunemba kukayinki wokukala, umehluko phakathi kwendawo yokunikeza uyinki endala nentsha yomshini wokunyathelisa, isivinini somshini wokunyathelisa, kanye inani lamanzi emshinini wokunyathelisa lizophinde libe nemiphumela ehlukene kumehluko wombala.
3, Pantong control umbala
Ukufingqa, ukuze kuqinisekiswe ukuthi umehluko wombala weqoqo elifanayo namaqoqo ahlukene emikhiqizo ahlangabezana namazinga kazwelonke kanye nezidingo zamakhasimende, umbala we-pantong ulawulwa ngendlela elandelayo enqubweni yokuphrinta:
Ukwenza ikhadi lombala we-pantong
Okokuqala, ngokwesampula yombala ojwayelekile onikezwe ikhasimende, kusetshenziswa uhlelo lokufanisa umbala wekhompyutha ukunikeza ingxenye kayinki wombala we-pantong;Bese kuphuma kusampula kayinki, ngesisetshenziswa sikayinki esiyiyunifomu, ithuluzi lokubonisa uyinki “libonisa” ukuminyana okuhlukile kwesampula yombala;Bese ngokuya ngokwendinganiso kazwelonke (noma ikhasimende) ezidingweni zomehluko wombala webanga, nge-spectrophotometer ukuze kutholwe izinga, umkhawulo ongashoni, umkhawulo ojulile, ikhadi lombala elijwayelekile lokuphrinta (umehluko wombala weqa isidingo esijwayelekile sokuqhubeka nokulungiswa).Ingxenye eyodwa yekhadi lombala iyisampula yombala ojwayelekile, enye ingxenye iyisampula yombala olashwe ngaphezulu, lokhu ukwenza kube lula ukusetshenziswa kokuhlolwa kwekhwalithi.
Qinisekisa umbala
Uma kucatshangelwa ukuthi iphepha liyisici esiyinhloko esithinta umehluko wombala, ngakho-ke ngaphambi kokunyathelisa ngakunye ukusebenzisa iphepha langempela lokuphrinta "bonisa" isampula yombala, ikhadi lombala lokuqhathanisa ukwenza ukulungiswa okuncane, ukuze kuqedwe ithonya lephepha.
Ukulawula ukuphrinta
Umshini wokuphrinta usebenzisa ikhadi lombala elijwayelekile lokuphrinta ukuze ulawule ukujiya kongqimba lukayinki wombala we-pantong, futhi usiza ukukala inani elikhulu lokuminyana kanye nenani le-BK lombala nge-densitometer ukuze unqobe umehluko wokuminyana kombala owomile nomanzi kayinki.
Ngamafuphi, ekufakweni kokuphrinta, kunezizathu ezahlukahlukene zokuphambuka kombala we-pantong.Kuyadingeka ukuhlaziya izizathu ezihlukene ekukhiqizeni kwangempela, ukuxazulula izinkinga, zama ukulawula ukuchezuka ebangeni elincane, futhi ukhiqize imikhiqizo yokupakisha yokuphrinta eyanelisa amakhasimende.
Isikhathi sokuthumela: Feb-02-2021