Isingeniso:
Ekuphrinteni kwe-multicolor offset, ikhwalithi yombala wokuphrinta incike ezintweni eziningi zokulawula, enye yazo okuwukulandelana kombala wokuphrinta.Ngakho-ke, kubaluleke kakhulu ukukhetha ukulandelana kombala okulungile kwekhwalithi yombala wokuphrinta.Ukuhlelwa okunengqondo kokulandelana kombala kuzokwenza umbala wento ephrintiwe usondele kakhulu kumbhalo wesandla wokuqala.Leli phepha lichaza kafushane umthelela wokulandelana kombala wokuphrinta kwikhwalithi yombala wento ephrintiwe.Ngenkomba yakho kuphela :
Ukulandelana kombala wokuphrinta
Ukulandelana kombala wokuphrinta kusho ukuhleleka kokuphrinta kwe-monochrome ekuphrinteni okunemibala eminingi.Isibonelo, iphrinta yemibala emine noma iphrinta yemibala emibili ithintwa ukulandelana kombala.Ngokuvamile, ukusetshenziswa kokuhlelwa kokulandelana kombala okuhlukene ekunyatheliseni, imiphumela yokunyathelisa ihlukile, ngezinye izikhathi ukuhleleka kombala wokunyathelisa kunquma ubuhle bendaba ephrintiwe noma cha.
01 Ubudlelwano phakathi komshini wokunyathelisa nokulandelana kombala Inombolo yombala womshini wokunyathelisa kufanele inakwe lapho kukhethwa ukulandelana kombala wokuphrinta.Imishini ehlukene yokuphrinta kufanele isetshenziselwe ukuphrinta ngokweqile ngemibala ehlukahlukene elandelanayo ngenxa yemvelo yayo yokusebenza ehlukile.
Umshini we-Monochrome
Umshini we-Monochrome ungowomshini wokunyathelisa owomile.Iphepha phakathi kombala wokuphrinta kulula ukunwetshwa futhi likhubazekile, ngakho-ke ukuphrinta okujwayelekile kokuqala ngokunemba kwezidingo ze-overprinter eziphuzi nokumnyama, kuze kube yilapho iphepha livame ukuzinza bese liphrinta umbala ozophrinta.Uma umbala wokuphrinta wokuqala womile, umthamo wokudlulisa uyinki uba ngaphezu kwama-80%.Ukuze unciphise umehluko wombala ku-overprinter, setha umbala obalulekile esithombeni, kufanele uqale uphrinte ithoni eyinhloko.
Umshini wemibala emibili
Imibala engu-1-2 kanye ne-3-4 yomshini wemibala emibili ingeyomshini wokunyathelisa omanzi owomile, kanti umbala wesibili nowesithathu ungowomshini wokunyathelisa omanzi owomile.Ukulandelana kombala okulandelayo kuvame ukusetshenziswa ekuphrinteni: 1-2 umbala wokuphrinta i-magenta - cyan noma i-cyan - i-magenta;3-4 umbala ukuphrinta omnyama-ophuzi noma ophuzi-mnyama.
Umshini we-Multicolor
Umshini onemibala eminingi womshini wokunyathelisa omanzi wokunyathelisa, odinga ukuthi uyinki ngamunye kufanele unembile kusishicileli esisheshayo, futhi ku-tension kayinki we-overprinter, akukwazi ukuba omunye uyinki endaweni yokuphrinta "thatha".Esimweni sangempela sokuphrinta, uyinki wombala wokuqala ekuphrintiwe ngokweqile kombala wesibili, umbala wesithathu nombala wesine, futhi, ingxenye kayinki inamathele engutsheni, ukuze ingubo yesine yombala iveze ngokusobala i-four- isithombe sombala.Uyinki wombala wesi-3 unamatheliswa kancane, uyinki wombala wesi-4 kuphela ogciniwe ongu-100%.
02 Ubudlelwano phakathi kwezici ze-inki nokulandelana kombala
Izici zikayinki nokulandelana kombala
Ekukhetheni ukulandelana kombala (ikakhulukazi ukuphrinta kwe-multicolor), ukucabangela izici zikayinki: i-viscosity ye-inki, ukushuba kwefilimu kayinki, ukukhanya, ukomisa, njll.
I-Viscosity
I-viscosity ye-ink idlala indima esobala ekuphrinteni ngokweqile.Ekukhetheni kufanele kube yi-liquidity encane, i-viscosity yeyinki emikhulu ngaphambili.Uma kungekho ukucatshangelwa inki viscosity kuzokwenzeka "i-reverse overprint" mkhuba, kuzoholela uyinki ushintsho umbala, okuholela isithombe olulufifi, grey umbala, lackluster.
Usayizi we-viscosity kayinki wemibala emine ojwayelekile umnyama > oluhlaza > i-magenta > ophuzi, ngakho umshini ojwayelekile wemibala emine usebenzisa kakhulu ukulandelana kombala wokuphrinta othi "cyan emnyama - magenta - ophuzi", ukwandisa ukushesha kokuphrinta ngokweqile.
Ubukhulu befilimu kayinki
Ukujiya kwefilimu kayinki kuyisici esibalulekile sokuthola ukwehliswa okungcono kakhulu kwamazinga ombala wokuphrinta.Ifilimu kayinki mncane kakhulu, uyinki akakwazi ukumboza ngokulinganayo iphepha, ukucwebezela kwesikrini, umbala uvame ukushona phansi, ufiphele;Ifilimu kayinki iwugqinsi kakhulu, kulula ukubangela ukwanda kwephoyinti le-mesh, inguqulo yokunamathisela, icindezela ungqimba.
Ngokuvamile, ukukhetha okukhulayo kwefilimu ye-inki yokulandelana kombala wokunyathelisa, okungukuthi "omnyama - oluhlaza - ophuzi - ophuzi" ukuze uphrinte, umphumela wokuphrinta ungcono.
Ukungafihli
Ukubonakala kwe-inki kuncike emehlukweni wenkomba ye-refractive yama-pigments nama-binder.I-Diaphaneity ye-inki ngemuva kwethonya lombala we-overprinting likhulu, njengoba emva kokuphrinta ngokweqile kombala akulula ukukhombisa umbala ofanele;Ubuningi be-inki obungafihli kakhulu - ukuphrinta kombala okweqile, ukukhanya kombala kayinki kuqala ngoyinki wokuphrinta wakamuva, kuzuze umphumela ongcono wokuhlanganisa imibala.Ngakho-ke, ukungacaceli kahle kukayinki kuqala, ukungafihli okuphezulu kukayinki ngemva kokuphrinta.
Yomile
Kusukela ekumisweni kweyinki ukuze kucatshangelwe, ukuze wenze umbala weyinki wokuphrinta ugqame, isicwebezelisi umphumela omuhle wokuphrinta, ungaphrinta uyinki wokuphrinta owomile kuqala, uphrinte isivinini sokumisa uyinki kamuva.
03 Ubudlelwano phakathi kwezakhiwo zephepha nokulandelana kombala
Izakhiwo zephepha zithinta ngqo ikhwalithi yendaba ephrintiwe.Ngaphambi kokuphrinta, iphepha ikakhulukazi licubungula ubushelelezi, ukuqina, ukuguquguquka, njll.
Ubushelelezi
Ukushelela okuphezulu kwephepha, ukuphrinta kusondelene nengubo, kungaphrintwa ngombala ofanayo, isithombe esicacile somkhiqizo.Futhi ukushelela okuphansi kwephepha, ukuphrinta ngenxa yobuso obungalingani bephepha, ukudluliswa kweyinki kuzothinteka, okuholela ekunyatheliseni kwefilimu ye-inkino yokunyathelisa, insimu yesithombe ingxenye yokufana kweyinki yehla.Ngakho-ke, lapho ubushelelezi bephepha buphansi, inki ye-pigment granule embala wokuqala.
Ukuqina
Ukuqina kwephepha nokushelela kwephepha kuhlobene eduze.Ngokuvamile, ukushelela kwephepha nokwanda kokuqina kwephepha nokuthuthukisa.Ukuqina okuphezulu, ukushelela okuhle kwephepha ngaphambi kokuphrinta umbala omnyama, ngemuva kokuphrinta umbala wokukhanya;Ngokuphambene nalokho, umbala wokukhanya wokuphrinta wokuqala (ophuzi), ngemuva kombala omnyama, lokhu ikakhulukazi ngenxa yeyinki ephuzi ingamboza uboya bephepha kanye nempushana nezinye iziphambeko zephepha.
Ukuguquguquka
Phakathi nenqubo yokunyathelisa, iphepha lizokhubazeka futhi linwetshwe ngezinga elithile ngokusebenzisa i-roller rolling kanye nomphumela we-liquid egijima, okuzothinta ukunemba kokuphrinta okudlulele.Ngakho-ke, kufanele uqale uphrinte indawo yenguqulo yombala omncane noma inguqulo emnyama, bese uphrinta indawo yenguqulo yombala omkhulu noma inguqulo yombala okhanyayo.
04 Ukulandelana kombala okukhethekile kwamaphrinti akhethekile
Ekunyatheliseni nasekukhiqizeni kabusha imisebenzi ekhethekile yasekuqaleni, ukulandelana kombala wokunyathelisa kudlala indima ecashile, engakwazi nje ukwenza umsebenzi wokunyathelisa usondele noma ubuyisele okwangempela, kodwa futhi ukwenze ukukhiqiza kabusha ukukhanga kobuciko boqobo.
Umbala wangempela
Umbhalo wesandla wokuqala uyisisekelo sakho kokubili ukwenziwa kwamapulangwe nokunyathelisa.Umbhalo wesandla ojwayelekile wombala unethoni eyinhloko kanye nethoni encane.Emibala eyinhloko, kunemibala epholile (eluhlaza, eluhlaza okwesibhakabhaka, eluhlaza okwesibhakabhaka, njll.) nemibala efudumele (ophuzi, i-orange, ebomvu, njll.).Ekukhetheni oda umbala, kumele alandele isimiso primary and secondary.Ngakho-ke, ekuhlelweni kokulandelana kombala, ngemibala efudumele ngokuyinhloko ephrintiwe emnyama, eluhlaza, ebomvu, ephuzi;Ukupholisa umbala - ukuphrinta okusekelwe ngokubomvu, ngemva kokuphrinta okuluhlaza.Uma ithoni eyinhloko yomdwebo we-landscape ingumbala opholile, ukulandelana kombala kufanele kufakwe epuleti eliluhlaza kamuva noma ukuphrinta kokugcina;Futhi ithoni eyinhloko yomdwebo womdwebo wombala ofudumele, ku-magenta, kufanele ifakwe enguqulweni ye-magenta kamuva noma ukuphrinta kokugcina, ukuze ithoni eyinhloko ibe eduze kwesithombe igqamisa isihloko.Futhi, ithoni eyinhloko yomdwebo wendabuko waseShayina kumnyama, omnyama kufanele ufakwe ekunyatheliseni kamuva noma kokugcina.
Isikhathi sokuthumela: Dec-21-2020