Iphepha le-Copperplate lithuthukiswa ngokuphrinta kwesikrini, ngoba ukwakheka kwe-fiber yephepha engagcotshiwe yokungalingani okungaphezulu kanye nezinga kunobubanzi bechashazi kukhulu kakhulu, amanye amachashazi atholakala esikhaleni esiphakathi kwemicu futhi awakwazi ukudlulisela uyinki iphepha, ukuze i-pixel yesithombe kule ngxenye ingakwazi ukukhiqizwa kabusha.Iphepha elimbozwe nge-pulp bese lifakwa nge-calender, ingaphezulu lezinhlayiya zephepha ezincane kunobubanzi bechashazi, i-pulp nayo ingcono kunemicu ye-cellulose, ngakho ichashazi lingenziwa kabusha ngendlela efanele.Ngokusobala, ukusebenza kokuphrinta kwephepha elinamekwe elinamekwe kungcono kunephepha le-offset elingafakwanga.
Iphepha lokuqala lephepha elihlanganisiwe lenziwe ngephepha lezindaba eligoqiwe eliphezulu noma iphepha lokunyathelisa le-offset, futhi iphepha elihlanganisiwe lezinga eliphezulu lenziwa ngephepha elikhethekile lokuqala.Ukugqoka okuphezulu kunamathele ngokuqinile ephepheni lokuqala.Ingaphezulu lephepha libe selifakwe i-super calendered, eline-coating eqinile, awekho amabhamuza, awekho ama-streaks, isicwebezelisi esiqinile nokushelela okuphezulu.Ubushelelezi bephepha eliboshiwe ngokuvamile bungaphezu kwama-600s, okuphindwe izikhathi ezingaphezu kweziyi-10 kunalelo lephepha le-offset.Lokhu kwenza iphepha eliboshwe likwazi ukuxhumana eduze nepuleti lokuphrinta futhi liphrinte ichashazi ngokucacile.Inani le-pH lephepha elimboziwe lizungeze u-7, elingenawo umthelela omubi kusixazululo sokumanzisa i-lithographic futhi alinawo umthelela omubi enqubweni yokomisa uyinki.In the ipuleti yethusi iphepha uyinki inamathela ngokushesha, yome ngokushesha, futhi ngemva omiswe kungase futhi usethe isicwebezelisi, reproducibility omuhle iphuzu network, ungqimba uyinki mncane futhi isithombe esicacile, inethiwekhi ihlanzekile.Ukuzinza kwephepha elimboziwe kungcono kunephepha le-offset, futhi ukuphrinta ephepheni elimboziwe kungahlangabezana nezidingo zokuphrinta ngokweqile okunembile.Amandla aqinile namandla angaphezulu ephepha elimboziwe nakho kuphakeme ngokwanele ukumelana namandla amakhulu aqinile akhiqizwa ifilimu kayinki ye-viscous esetshenzisiwe.Ngenxa yalokhu okungenhla, iphepha elihlanganisiwe livame ukusetshenziselwa ukuphrinta izinto eziphrintiwe ezisezingeni eliphezulu
Isikhathi sokuthumela: Jan-03-2023