Mayelana ne-Flexography ne-Letterpress Izindlela zokuprinta
Lezi zinhlobo ezimbili zokunyathelisa ezokuhweba ezibizwa ngokuthi ukunyatheliswa kwe-relief are letterpress and flexography. Kuzo zombili izimo, isithombe esidluliselwa ephepheni noma enye into ephakanyiswayo iphakanyiswa ngaphezu kwendawo yokuprinta . Inki isetshenziselwa endaweni ephakanyisiwe, bese ipuleti igoqwe noma igxilwe kwi-substrate. Inqubo yokunyathelisa yokukhulula ifana nokusebenzisa isitini se-inki nesitampu senjoloba. Ngaphambi kokuqalwa kwamakhompyutha wedeskithophu nokunyathelisa okungahleliwe, ukuphrinta okuningi kwakungenye indlela yokunyathelisa ukukhululeka.
Nakuba isithombe sokunyatheliswa sikhuliswa epulazini lokuphrinta, ukushicilelwa kokukhululeka akudala ukubhalwa okuqoshiwe okunjengokuthi kutholakala embossing kanye thermography.
I-Flexography
Ukunyathelisa kwe- Flexography kuvame ukusetshenziswa emaphaketheni wephepha neplastiki kufaka phakathi izikhwama, amabhokisi amabisi, amalebula kanye nezigqoko zokudla, kodwa ingasetshenziswa cishe nganoma yimuphi umcibisholo ohlanganisa amakhadibhodi, idayi nefilimu yensimbi. I-Flexography inguqulo yanamuhla ye-letterpress. Isebenzisa ama-inks esheshayo-omisiwe futhi isetshenziselwa ukugijima isikhathi eside.
Amapulangwe okunyathelisa ama-photopolymer eguquguqukayo asetshenziselwa ukunyathelisa kwe-flexography ane isithombe esithuthukisiwe esamukela inkinobho. Zifakwe ezitsheni ze-web press. I-Flexography ifaneleka kahle ukuphrinta amaphethini aqhubekayo, afana nesithombe sangemuva nesipopho sesipho.
I-Flexography iyindlela yokunyathelisa esheshayo. Yize kuthatha isikhathi esiningi ukusetha imishini yokunyathelisa i-flexographic kunomshini wokunyathelisa okhishiwe, uma umshini ucindezela, kudinga ukungenelela okuncane kusuka kubapini bezindaba futhi ukwazi ukusebenza ngokuqhubekayo isikhathi eside.
Ukuphrinta kwe-Letterpress
I-Letterpress yiyona ndlela endala yokunyathelisa. Lapho ukuphrinta kwe-offset kusungulwe, kufakwe esikhundleni se-letterpress njengendlela yokuphrinta ekhethwa yamaphephandaba, izincwadi, neminye imikhiqizo eminingi ephrintiwe. Ukunyathelisa kwe-Letterpress manje kubhekwa njenge-craft, futhi isetshenzisiwe futhi ihlonishwa ngemidwebo yobuciko bomdwebo obunqunyelwe, izincwadi zokulinganisa ezilinganiselwe, amakhadi wokubingelela okuphezulu, amanye amakhadi ebhizinisi, izinhlamvu zamaphepha kanye nememo yomshado.
Inqubo eyenziwa ngezandla okwakuvele idinge ukuqoqa izingcezu ezihambayo zohlu kuhlaka olusebenza manje ngokwenza amapulethi we-polymer besebenzisa inqubo yezithombe. Idijithali yedijithali icatshangelwa ifilimu bese ivezwa epulatifeni. Izindawo ezingaxhunyiwe zeplate zihlanzwa, zishiya izindawo eziphakanyisiwe ezizokwamukela inki. Izindawo eziphakanyisiwe ziyinki bese zicindezelwa ngokumelene nephepha ephepheni le-letterpress, elidlulisela isithombe.
Iningi lokunyathelisa kwe-letterpress isebenzisa imibala eyodwa yezinki eyodwa kuphela noma ezimbili. Imishini yokunyathelisa iyahamba kancane kancane uma iqhathaniswa nemishini yokunyathelisa i-speed.