Ukuphrinta ezintweni zokuzinamathelisa esekwe yifilimu kungaletha izinselele, futhi ukopha kukayinki kuyinkinga evamile etholwa abakhiqizi bokuphrinta. Ukwehla kukayinki kubhekisela ekuqineni okungekuhle kwesendlalelo sikayinki esiphrintiwe ebusweni bento ngenxa yezinto ezifana nokushuba okuphansi kwendawo., ukwelapha okunganele kwe-UV, kanye nezithasiselo zikayinki ezeqile. Ukulahleka kukayinki wokuphrinta okunzima akuthinti kuphela ikhwalithi yomkhiqizo, kodwa kuze kuholele ekukhishweni kwamaqoqo emikhiqizo. Kulesi sihloko, sizohlola izimbangela ezintathu eziphezulu zokopha kukayinki efilimini ephrintiwe yezinto ezinamathelayo futhi sinikeze izixazululo ezisebenzayo zokunqoba le nkinga..
1. Ukungezwani okuphansi kwezinto zefilimu
Esinye sezizathu eziyinhloko zamaconsi ayinki ezintweni zokuzinamathela ezisekelwe efilimini ukushuba okuphansi kwefilimu.. Ngokujwayelekile, iphezulu ukushuba kwendawo, ngcono ukushesha kweyinki ngemva kokuphrinta. Ayikho inkinga ngokushuba kwangaphezulu kwezinto eziningi ezifana nephepha, kodwa ukungezwani okungaphezulu kwezinto ezifana nefilimu kuvame ukungalingani. Lokhu kungezwani okuphansi kwendawo kungaholela ekunamatheleni kukayinki okungalungile, okungase kuholele ekwehliseni ithonsi leyinki kanye nekhwalithi yokuphrinta. Uma kukhona ukulahleka kukayinki phakathi nenqubo yokuphrinta, ungasebenzisa ipeni le-dyne ukuze uhlole inani le-top tension yento. Ngokujwayelekile, izinto ezinomfutho ongaphezulu ongaphansi 38 ama-datones athambekele ekulahlekelweni yiyinki. Ukuxazulula lolu daba, cabangela izixazululo ezilandelayo:
A. Ukwelashwa kwendawo: sebenzisa inqubo yokwelapha ngaphezulu ukuze kuthuthukiswe ukungezwani okungaphezulu kwefilimu. Lokhu kungafezwa ngokwelashwa kwe-corona, ukwelashwa kwelangabi noma ukwelashwa kwe-plasma, ezingashintsha izici ezingaphezulu, ukwandisa ukumanzisa futhi ukhuthaze ukunamathela kukayinki.
B. Ijazi lokuqala: Gcoba ijazi elifanele le-primer ezintweni zefilimu ngaphambi kokuphrinta. Ama-Primers asiza ukudala isibopho phakathi kukayinki nengaphezulu lempahla, ukuthuthukisa ukunamathela kukayinki kanye nokunciphisa ithuba lokuconsa kukayinki. Xhumana nomhlinzeki wakho wokumboza ukuze ukhethe i-primer efanelekile ehambisana nefilimu kanye nokwakheka kukayinki.. Ezinye izinkampani zokuphrinta ilebula ezichwepheshile zizosebenzisa ngokuqondile izinto zokunamathisela ezinamathelayo ze-PET ukuze ziphrinte. I-coating ishintsha izici zokumanzisa okungaphezulu kwe-PET self-adhesive materials, nokusebenza kuzinzile, kanye nokuqina kongqimba lweyinki kungathuthukiswa ngempumelelo.
2. Ukwelashwa kwe-UV okunganele
Ukwelashwa okunganele kwe-UV kuzoholela futhi kumaconsi kayinki lapho uphrinta izinto zokuzinamathelisa zohlobo lwefilimu. Ukwelashwa okungaphelele kuzoholela kungqimba lukayinki olungazuzi ubulukhuni nokunamathela okukhulu, okuholela ekugcotshweni okubi nokushesha. Ukwelapha okungaphelele kusho ukuthi ungqimba olungaphezulu lweyinki yokunyathelisa yomile futhi yelapheka, kodwa ingaphakathi alilapheki ngokupheleleyo. Ukulahleka kukayinki okubangelwa yilolu hlobo lwesimo ngokuvamile kwenzeka ekunyathelisweni kwamaphethini endawo enkulu. Lokhu kungenxa yokuthi amaphethini ezindawo ezinkulu asebenzisa inani elikhulu likayinki, futhi ingaphakathi longqimba lweyinki akulula kangako ukuphulukisa ngokuphelele. Ukuxazulula lolu daba, ungabheka izixazululo ezilandelayo:
A. Ukuqina kwe-UV kanye nomthamo: Qinisekisa ukuthi isistimu yokwelapha ye-UV ilinganiswe kahle futhi iletha amandla okwanele e-UV kanye nomthamo. Gada futhi ulungise amazinga e-UV ukushuba ukuze uthole ukwelashwa okufanele kwe-inki ethize kanye nezinto zefilimu ezisetshenziswayo. Ngokwesibonelo, amaphethini amnyama amunca ukukhanya okwengeziwe kwe-UV futhi ngokuvamile adinga amandla engeziwe ukuze ome ngokuphelele. Xhumana nabakhiqizi be-inki namathuluzi ukuze uthole amapharamitha anconyiwe wokwelapha we-UV.
B. Ukwelapha isikhathi kanye lokushisa: thuthukisa isikhathi sokuphulukisa kanye nezilungiselelo zezinga lokushisa ukuze uqinisekise ukuchayeka okwanele futhi uqinisekise ukuthi ungqimba lukayinki lwelapheke ngokugcwele. Bheka imihlahlandlela yomkhiqizi we-inki ngemingcele enconyiwe yokwelapha futhi ulungise ngokufanele izimo zokuphrinta nezinto ezisetshenziswayo.
C. Impilo yesevisi yezibani ze-UV: Okwamanje, impilo yesevisi yezibani ze-UV emishinini yokuphrinta ye-toppan iphakathi 800 na- 1000 amahora. Uma izibani zingashintshwanga lapho impilo elinganisiwe yeqiwe, kulula ukwenza ukuthi uyinki wome. Ngakho-ke, lapho ushintsha ishubhu yesibani se-UV, kuyadingeka ukwenza amarekhodi anemininingwane, futhi lapho ishubhu lesibani le-UV lifinyelela impilo yesevisi, kufanele ishintshwe ngesikhathi.
3. Izithasiselo zikayinki ezeqile
Ukuba khona kwezithasiselo zikayinki ngokweqile kuzodala ukwehla kukayinki lapho kunyatheliswa izinto zokuzinamathisela zohlobo lwefilimu. Enqubweni yokuphrinta, u-inki wokunyathelisa ngokuvamile uhlangabezana nezinkinga zokuqina, i-viscosity ephezulu kanye ne-inking empofu. Ngakho-ke, opharetha abaningi bazokhetha ukwengeza i-varnish ukuze bathuthukise uketshezi lweyinki yokunyathelisa. Nokho, uma inani le-varnish lisetshenziswe ngendlela engafanele, kulula kakhulu ukuthinta i-viscosity kayinki, ukungezwani kwendawo nokusebenza kokunamathela, okuholela ekwehleni kukayinki. Sicela ucabangele izixazululo ezilandelayo ukuze uxazulule le nkinga:
A. Ama-Ink Formulations: Buyekeza futhi ulungiselele ukwakheka kukayinki ngenhloso yokunciphisa ukusetshenziswa ngokweqile kwezithako. Njengoba kungezona zonke izinto ezingasetshenziswa ngokuphelele ngoyinki, ukuthola uyinki olungile kutholakala kangcono kakhulu ngokusebenzisana eduze nomnikezeli we-inki ukuze kwakhiwe indlela yokwenza inki yangokwezifiso ebhalansisa izakhiwo zikayinki futhi inciphise ubungozi bokwehla kwe-inki..
B. Ukuhlola ukuhambisana: Thumela okubalulekile kumnikezeli we-inki ukuze kuhlolwe ukuze uqinisekise ukuthi isithako se-inki esisetshenzisiwe siyahambisana nefilimu kanye nenqubo yokuphrinta.. Ukuhlolwa kokuhambisana kwenziwa phakathi kwe-inki nezinto zefilimu ukuze kutholwe noma yikuphi ukusebenzisana noma ukungahambisani okungase kubangele ukwehla kukayinki.. Hlola ukwakheka kukayinki okuhlukile futhi ulungise amazinga okungeza ukuze uthole inhlanganisela engcono kakhulu enikeza ukunamathela okuhle kuyilapho unciphisa ukuconsa kukayinki..
Isiphetho
Ukunqoba izinselele zokuphrinta amaconsi kayinki ezintweni zokuzinamathisela ezisekelwe efilimini kudinga indlela ehlukahlukene.. Ngokubhekana nezimbangela zokushuba kwesimo esiphansi, ukwelapha okunganele kwe-UV kanye nezithasiselo zeyinki ezeqile, amaphrinta angathuthukisa kakhulu ukunamathela kukayinki futhi azuze ikhwalithi engcono yokuphrinta. Sebenzisa ukwelapha okungaphezulu noma amajazi okuqala ukuze uthuthukise ukungezwani kwendawo, thuthukisa amapharamitha wokuphulukisa we-UV ukuze uzuze ukwelashwa okugcwele kweyinki, futhi lungisa kahle ukwakheka kukayinki ukuze unciphise ukusetshenziswa kwezithasiselo ezeqile. Ngokwamukela lezi zixazululo, abakhiqizi bangakwazi ukunqoba izinselele zokuwa kwe-inki futhi bakhiqize ukuphrinta kwekhwalithi ephezulu ezintweni zokuzinamathela ezisekelwe kufilimu.
