Iyo PS plate zvinoreva pre-sensitized plate inoshandiswa mukudhinda offset. Mukudhinda kweoffset, chifananidzo chichadhindwa chinobva papepa rearuminiyamu rakavharwa, rakaiswa pakatenderedza humburumbira. Iyo aruminiyamu inorapwa kuitira kuti nzvimbo yayo ive hydrophilic (inokwezva mvura), nepo yakagadziridzwa PS plate coating iri hydrophobic.
Iyo PS ndiro ine marudzi maviri: yakanaka PS ndiro uye yakaipa PS ndiro. Pakati pavo, PS plate yakanaka inoverengera chikamu chikuru, icho chinoshandiswa muhuwandu hwepakati kusvika kune makuru-makuru ekudhinda mabasa nhasi. Iyo tekinoroji yekugadzira yakawedzerawo.
Iyo PS ndiro inogadzirwa ne substrate uye iyo PS plate coating, kureva, photosensitive layer. Iyo substrate inowanzova aluminium base plate. Iyo photosensitive layer idhizaini inoumbwa nekuputira iyo photosensitive fluid pane base plate.
Zvikamu zvaro zvikuru ndeye photosensitizer, film-forming agent uye anobatsira mumiriri. Iyo photosensitizer inowanzoshandiswa mumapureti akanaka ePS inonyungudika diazonaphthoquinone mhando photosensitive resin nepo iyo mune yakaipa PS ndiro isinganyunguke azide-based photosensitive resins.
Iyo positve PS plate ine zvakanakira uremu huremu, kuita kwakagadzikana, mifananidzo yakajeka, akapfuma akaturikidzana, uye yakakwirira kudhinda mhando. Kugadzirwa kwayo uye kushandiswa kuri kuchinja kukuru muindasitiri yekudhinda. Parizvino, ndiro yePS yakafananidzwa nekuseta kwemagetsi, kupatsanurwa kwemavara emagetsi, uye kudhinda kwemulticolor offset, yave nzira huru yekugadzira mapepa nhasi.
Nguva yekutumira: May-29-2023