iindaba

Inkcazo: Kwiminyaka yakutshanje, ukuprintwa kombala we-pantong kuye kwasetyenziswa ngokubanzi kushicilelo lweemveliso zokupakisha zephepha.Umbala wePantong ubhekisa kumbala ongeyiyo emine kunye nomxube wemibala emine, eprintwe ngokukodwa nge-inki ethile.Inkqubo yoshicilelo lombala wePantong isoloko isetyenziselwa ukupakisha ukuprinta umbala ongemva wendawo enkulu.Eli phepha lichaza ngokufutshane izakhono zokulawula ushicilelo lombala we-pantong, umxholo wereferensi yabahlobo:

Ushicilelo lombala wepantong

Ukuprintwa kombala wePantong kubhekisa kwinkqubo yoshicilelo apho eminye imibala ngaphandle komthubi, imagenta, cyan kunye ne-inki emnyama isetyenziselwa ukuphinda umbala wombhalo-ngqangi wokuqala.

Iimveliso zokupakishwa okanye amaqweqwe eencwadi kunye neemagazini zihlala zenziwe ngeebhloko zemibala efanayo yemibala eyahlukeneyo okanye iibhloko zemibala ethe ngcembe kunye namagama.Ezi bloko zemibala kunye namagama zinokuprintwa ngaphezulu ngemibala emine ephambili emva kokwahlulelwa ngokwemibala, okanye imibala ye-pantong inokwabiwa, kwaye ke kuphela i-inki yombala we-pantong enye inokuprintwa kwibhloko yombala ofanayo.Kuqwalaselo olubanzi lokuphucula umgangatho wokushicilela kunye nokugcina inani lee-overprints, ukuprintwa kombala we-pantong kufuneka kukhethwe.

1,ukubona umbala wePantong

Okwangoku, uninzi lwamashishini okupakisha kunye noshicilelo lwasekhaya kumlinganiselo we-antong kunye nolawulo lombala kuthetha ukuthembela kakhulu kumava abasebenzi ukuba bafake i-inki yombala we-pantong.Ukungalungi oku kukuba umlinganiselo we-inki ye-pantong ayichanekanga ngokwaneleyo, ixesha lokuthunyelwa lide, impembelelo yezinto ezizimeleyo.Amanye amashishini amakhulu anamandla okupakisha kunye noshicilelo amkele inkqubo yokuthelekisa i-inki yombala wepantong kulawulo lwayo.

Inkqubo yokulinganisa inki yombala wepantong yenziwe ngekhompyuter, isoftware yokuthelekisa umbala, i-spectrophotometer, ibhalansi yohlalutyo, isixhobo se-inki esilinganayo kunye nesixhobo sokubonisa inki.Ngale nkqubo, iiparamitha zephepha kunye ne-inki ezihlala zisetyenziswa yinkampani ziqokelelwa kwisiseko sedatha, isoftware ehambelana nombala isetyenziselwa ukuhambelana nombala webala onikezelwe ngumthengi ngokuzenzekelayo, kunye nexabiso leCIELAB, ixabiso loxinaniso kunye △E zi. kulinganiswa nge-spectrophotometer, ukuze ulawulo lwedatha ye-inki ehambelana nombala we-pantong ifezeke.

2. Izinto ezichaphazela umbala we-pantong

Kwinkqubo yoshicilelo, zininzi izinto ezikhokelela kwi-chromatic aberration kwimveliso ye-inki yombala we-pantong.Ezi zinto zixutyushwa kula macandelo alandelayo.

Impembelelo yephepha kumbala:

Impembelelo yephepha kumbala we-inki umaleko ibonakaliswa ikakhulu kwimiba emithathu

1) Ubumhlophe bephepha: Iphepha elinobumhlophe obahlukileyo (okanye ngombala othile) lineziphumo ezahlukeneyo kumboniso wombala woshicilelo lwe-inki.Ngoko ke, kwimveliso yangempela kufuneka uzame ukukhetha ubumhlophe obufanayo bokushicilela iphepha, ukwenzela ukunciphisa ubumhlophe bephepha kumbala wokushicilela.

2) ukufunxa isakhono: i-inki efanayo eprintiweyo phantsi kweemeko ezifanayo ukuya kubuchule bokufunxa obuhlukeneyo bephepha, kuya kubakho ukucwebezela kokushicilela okwahlukileyo.Iphepha le-non-coating kunye nephepha lokugquma xa lithelekiswa, umaleko we-inki omnyama uya kubonakala ngwevu, umnyama, kwaye umbala we-inki umaleko uya kuvelisa i-drift, nge-inki e-cyan kunye ne-magenta inki edibanisa ngaphandle kokusebenza kombala kubonakala kakhulu.

3) ukucwebezela kunye nokugudiswa: ukukhazimla koshicilelo kuxhomekeke kukukhanya kunye nokuguda kwephepha.Umphezulu wephepha lokuprinta yi-semi-gloss surface, ngokukodwa iphepha eligqunyiweyo.

Isiphumo sonyango olungaphezulu kumbala:

Unyango olungaphezulu lweemveliso zokupakisha luhlanganiswe kakhulu nefilimu (ifilimu ekhanyayo, ifilimu ye-matt), i-glazing (i-oyile yokukhanya, ioli ye-matt, i-UV varnish) njalo njalo.Iiprinta emva kolu nyango lomphezulu, kuya kubakho amanqanaba ahlukeneyo okutshintsha kwe-hue kunye nokutshintsha kombala.Ukugubungela ifilimu eqaqambileyo, gubungela ioli eqaqambileyo kunye neoli ye-UV, ukuxinana kombala kwanda;Xa ugubungela ifilimu ye-matte kunye nokugubungela ioli ye-matte, ubuninzi bombala buyancipha.Utshintsho lwekhemikhali luvela ikakhulu kwiglue ecatyisweyo, i-oyile yesiseko ye-UV, ioyile ye-UV iqulethe iintlobo ngeentlobo zezinyibilikisi zezinto eziphilayo, eziya kwenza ukuba umbala we-inki yoshicilelo utshintshe.

Impembelelo yomahluko wenkqubo:

Yenziwe kwisixhobo sokuhambisa, bonisa umbala we-inki "yomileyo" inkqubo, inkqubo yenxaxheba, ngaphandle kwamanzi kunye noshicilelo yinkqubo "yokushicilela okumanzi", ulwelo lokumanzisa lubandakanyeka kwinkqubo yokushicilela, ngoko kwi-offset inki yoshicilelo inyanzelekile ukuba yenzeke i-emulsion yamanzi-e-oyile, inki ye-emulsion ngenxa yokutshintsha emva kokuhanjiswa kwemeko yamasuntswana e-pigment kumaleko we-inki, ibophelelekile ukuba ivelise umbala, imveliso eprintiweyo nayo imbala emnyama, ayiqaqambi.

Ukongezelela, umahluko we-desalinator kunye ne-desalinator eyomileyo yayinempembelelo ethile kumbala.Ukuzinza kwe-inki esetyenziselwa ukuxuba umbala we-pantong, ubukhulu bomgca we-inki, ukuchaneka kwe-inki yokulinganisa, umahluko phakathi kwendawo yokubonelela nge-inki endala kunye nentsha kumatshini wokushicilela, isantya somatshini wokushicilela, kunye umthamo wamanzi kumatshini wokushicilela nawo uya kuba neziphumo ezahlukeneyo kumahluko wombala.

3, ulawulo lombala wePantong

Ukushwankathela, ukuze kuqinisekiswe ukuba umahluko wombala webhetshi enye kunye neebhetshi ezahlukeneyo zeemveliso ziyahlangabezana nemigangatho yesizwe kunye neemfuno zabathengi, umbala wepantong ulawulwa ngolu hlobo lulandelayo kwinkqubo yoshicilelo:

Ukwenza ikhadi lombala we-pantong

Okokuqala, ngokwesampulu esemgangathweni yombala ebonelelwa ngumthengi, usebenzisa inkqubo yokuthelekisa umbala wekhompyuter ukunika umlinganiselo we-inki yombala wepantong;Emva koko ngaphandle kwesampulu ye-inki, kunye nesixhobo se-inki esifanayo, isixhobo sokubonisa i-inki "bonisa" ubuninzi obuhlukeneyo besampuli yombala;Ke ngokomgangatho wesizwe (okanye umthengi) kwiimfuno zomahluko wombala woluhlu, kunye ne-spectrophotometer ukumisela umgangatho, umda ongekho nzulu, umda onzulu, ushicilelo lwekhadi lombala eliqhelekileyo (umahluko wombala udlula imfuneko yomgangatho wokulungiswa ngakumbi).Esinye isiqingatha sekhadi lombala yisampuli yombala eqhelekileyo, esinye isiqingatha yisampuli yombala ephathwayo, oku kukwenza kube lula ukusetyenziswa kokuhlolwa komgangatho.

Qinisekisa umbala

Ukuqwalasela ukuba iphepha lelona nqaku lichaphazela ukuhluka kombala, ngoko ke phambi koshicilelo ngalunye ukusebenzisa iphepha lokushicilela "bonisa" isampuli yombala, ikhadi lombala lokungafaniyo ukwenza ukulungiswa kwe-micro-correction, ukuze kupheliswe impembelelo yephepha.

Ulawulo loshicilelo

Umatshini wokushicilela usebenzisa ikhadi eliqhelekileyo loshicilelo lombala ukulawula ubukhulu be-inki yombala we-pantong, kwaye unceda ukulinganisa ixabiso eliphambili loxinaniso kunye nexabiso le-BK lombala kunye ne-densitometer ukoyisa umahluko wobunzima bombala owomileyo nomanzi we-inki.

Ngamafutshane, ekupakishweni koshicilelo, kukho izizathu ezahlukeneyo zokuphambuka kombala we-pantong.Kuyimfuneko ukuhlalutya izizathu ezahlukeneyo kwimveliso yokwenyani, ukusombulula iingxaki, zama ukulawula ukutenxa kuluhlu oluncinci, kwaye uvelise imveliso yokupakisha yokupakisha eyanelisayo abathengi.