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Nhanganyaya:

Mune multicolor offset kudhinda, kudhinda kwemavara emhando kunoenderana nehuwandu hwekutonga zvinhu, imwe yacho inodhinda kutevedzana kwemavara.Nokudaro, zvakakosha zvikuru kusarudza kutevedzana kwemavara ekudhinda mavara emhando.Kurongeka kunonzwisisika kwekutevedzana kwemavara kuchaita kuti ruvara rwechinhu chakadhindwa ive pedyo zvikuru nerunyoro rwepakutanga.Pepa rino rinotsanangura muchidimbu pesvedzero yeruvara rwakateedzana pamhando yeruvara rwezvakadhindwa.

Kudhinda kutevedzana kwemavara

Kudhinda kutevedzana kwemavara kunoreva kurongeka kwemonochrome kudhinda mukudhinda kwemavara mazhinji.Semuenzaniso, printa ine mavara mana kana maviri-mavara printer inobatwa nekutevedzana kwemavara.Kazhinji kutaura, iko kushandiswa kwemavara akasiyana-siyana kutevedzana kuronga mukudhinda, miuyo yekudhinda yakasiyana, dzimwe nguva kudhinda kwemavara odha kunosarudza kunaka kwechinhu chakadhindwa kana kwete.

01 Hukama huri pakati pemuchina wekudhindisa nekutevedzana kwemavara Nhamba yeruvara yemuchina wekudhinda inofanira kuverengerwa pakusarudza kutevedzana kwemavara ekudhinda.Michina yekudhinda yakasiyana inofanirwa kushandiswa kuwedzeredza nemavara akasiyana akatevedzana nekuda kwekushanda kwawo kwakasiyana.

Monochrome muchina

Monochrome muchina ndewe wet press dry printing.The bepa pakati kudhinda ruvara zviri nyore kuwedzeredzwa uye kuremara, saka mukuru wokutanga kudhinda pamusoro kururama overprinter zvinodiwa yero uye dema, kusvikira bepa rinowanzoita kugadzikana uye ipapo kudhinda ruvara kudhindwa.Kana iyo yekutanga kudhinda ruvara yakaoma, iyo inki yekutamisa vhoriyamu iri pamusoro pe80%.Kuti uderedze mutsauko wemuvara mune overprinter, bvisa yakakosha ruvara mumufananidzo, unofanirwa kutanga wadhinda toni huru.

Maviri-mavara muchina

Iwo 1-2 uye 3-4 mavara emuchina wemavara maviri ndeemuchina wenyoro wakadhinda wakaoma, nepo wechipiri nechitatu mavara ndeemuchina wekunyorova wokudhinda wakaoma.Kutevedzana kwemavara kunotevera kunowanzoshandiswa pakudhinda: 1-2 ruvara rwekudhinda magenta - cyan kana cyan - magenta;3-4 ruvara kudhinda dema-yero kana yero-dema.

Multicolor muchina

Multi-ruvara muchina wokunyorova wokudhinda wet kudhinda, izvo zvinoda kuti inki imwe neimwe inofanira kuva yakarurama mune pakarepo overprinter, uye mune overprinter inki tension, haigoni kuva imwe ingi kubva panzvimbo yekudhinda "bvisa".Mumamiriro chaiwo ekudhinda, yekutanga ruvara ingi mukudhindisa kwechipiri ruvara, ruvara rwechitatu uye ruvara rwechina, zvakare, chikamu cheinki chinonamatira kune gumbeze, kuitira kuti jira rechina rive pachena rinoratidza mana- mufananidzo weruvara.Iyo 3rd color inki inoteedzerwa zvishoma, chete 4th color inki ndiyo 100% inochengetwa.

02 Hukama pakati pemainki maitiro uye kutevedzana kwemavara

Ingi maitiro uye kutevedzana kwemavara

Mukusarudza kwekutevedzana kwemavara (kunyanya kudhinda kwemulticolor), kufunga nezve hunhu hweinki: inki viscosity, inki firimu ukobvu, pachena, kuomesa, nezvimwe.

Viscosity

Ink viscosity inoita basa riri pachena mukudhindisa.Muchisarudzo kunofanira kuva shoma liquidity, viscosity yeingi hombe pamberi.Kana pasina kufunga ingi viscosity kuchaitika "reverse overprint" chiitiko, kuchaita kuti ingi ruvara shanduko, zvichiita kuti mufananidzo wakasviba, grey ruvara, kushaya.

General mana-ruvara ingi viscosity saizi idema> girini> magenta> yero, saka iyo yakajairika-mavara-mana muchina wakawanda shandisa "black cyan - magenta - yero" kudhinda ruvara rwekutevedzana, kuwedzera kukurumidza kwekuwedzeredza.

Iyo inki firimu ukobvu

Ukobvu hwefirimu reinki ndicho chinhu chakakosha kuti uwane kuderedzwa kwakanyanya kwemazinga emavara ekudhinda.Ingi firimu yakanyanyisa kutetepa, inki haigoni kuvhara zvakaenzana bepa, kudhinda sikirini inopenya, ruvara runowanzove rusina kudzika, rwakajeka;Ingi firimu rakanyanya kukora, zviri nyore kukonzera mesh point kuwedzera, paste vhezheni, layer inodzvinyirira.

Muzhinji, kusarudzwa kwekuwedzera inki firimu ukobvu wekutevedzana kwemavara ekudhinda, kureva "dema - girini - magenta - yero" kudhinda, kudhinda mhedzisiro iri nani.

Transparency

Inki kujeka kunoenderana nemusiyano mune refractive index ye pigment uye mabhainda.Diaphaneity ingi pashure overprinting ruvara pesvedzero yakakura, sezvo pashure overprinting ruvara overprinting hakusi nyore kuratidza zvakarurama ruvara;High transparency inki yakawanda - color overprint, kutanga kudhinda inki ruvara mwenje kuburikidza neinodhinda inki yakazodhinda, kuwana zvirinani kusanganisa kwemavara.Naizvozvo, hurombo husina kujeka hweinki kutanga, kujeka kwepamusoro kweinki mushure mekudhinda.

Dry

Kubva pakuomeswa kweinki kuti ufunge, kuitira kuti pave neruvara rweinki kupenya, kupenya kwakanaka kudhinda, unogona kudhinda inononoka yakaoma kudhinda ingi kutanga, kudhinda ingi yekuomesa nekukurumidza gare gare.

03 Ukama pakati pezvinhu zvemapepa uye kutevedzana kwemavara

Mapepa ehupfumi anokanganisa zvakananga kunaka kwezvinhu zvakadhindwa.Asati adhinda, bepa rinonyanya kufunga kutsetseka, kusimba, deformation, nezvimwe.

Kupfava

Kutsetseka kwepamusoro kwepepa, kudhinda kuri pedyo negumbeze, kunogona kudhindwa nemuvara wakafanana, mufananidzo wakajeka wechigadzirwa.Uye yakaderera kutsvedzerera bepa, kudhinda nokuda kusaenzana pamusoro bepa, ingi kutamisa kuchakanganiswa, zvichiita kudhinda ingi firimu ukobvu, mufananidzo munda chikamu ingi kufanana yakaderera.Naizvozvo, kana kutsvedzerera kwebepa kwakadzikira, pigment granule inki yakaoma pane yekutanga ruvara.

Kusimba

Pepa tightness uye pepa kutsvedzerera zvakabatana.Muzhinji, kutsetseka kwepepa nekuwedzera kwekuoma kwepepa uye kugadzirisa.High tightness, yakanaka kutsvedzerera bepa pre-kudhinda rima ruvara, pashure kudhinda chiedza ruvara;Pane zvinopesana, yekutanga kudhinda chiedza ruvara (yellow), mushure merima ruvara, izvi zvinonyanya kukonzerwa neingi yero inogona kuvhara mvere dzemapepa uye upfu uye mamwe mapepa akaremara.

Deformation

Munguva yekudhinda, bepa richave rakaremara uye richiwedzerwa kune imwe nhanho kuburikidza neroller rolling uye mhedzisiro yeinoyerera mvura, iyo inosungirwa kukanganisa kurongeka kwekudhinda overprint.Naizvozvo, unofanira kutanga wadhinda nharaunda yeruvara rudiki kana rima, wobva wadhinda nharaunda yeruvara rwakakura kana ruvara rwakareruka.

04 Kurongeka kwemavara anokosha ezvinyorwa zvakakosha

Mukudhinda uye kudhindwa kweakakosha mabasa ekutanga, kudhinda kwemavara kutevedzana kunoita basa risinganzwisisike, iro risingagone chete kuita kuti kudhinda kushande pedyo kana kudzoreredza yekutanga, asi zvakare kuita kuti ibudise runako rwehunyanzvi rwepakutanga.

Ruvara rwepakutanga

Manyoro ekutanga ndiwo hwaro hwezvose zviri zviviri kugadzira plate uye kudhinda.Runyoro rwakawanda rwemavara rune toni huru uye sub-toni.Mune mavara makuru, kune mavara anotonhorera (girinhi, bhuruu, ruvara rwepepuru, nezvimwewo) uye mavara anodziya (yero, orenji, tsvuku, nezvimwewo).Mukusarudza kwekurongeka kwemavara, inofanira kutevera nheyo yepuraimari uye yechipiri.Naizvozvo, mukutevedzana kwemavara kurongeka, nemavara anodziya anonyanya kudhindwa dema, girini, tsvuku, yero;Kuti utonhodze ruvara - based printing red, mushure mekudhinda green.Kana iyo huru toni yependi yenzvimbo iri inotonhorera ruvara, kutevedzana kwemavara kunofanirwa kuiswa pane yakasvibira ndiro gare gare kana yekupedzisira kudhinda;Uye iyo huru toni yemufananidzo wekupenda kwemuvara unodziya, kune magenta, inofanira kuiswa mune magenta vhezheni gare gare kana yekupedzisira kudhindwa, kuitira kuti toni huru inogona kunge yakatenderedza mufananidzo kusimbisa dingindira.Zvakare, iyo huru toni yechinyakare Chinese pendi kune dema, dema inofanira kuiswa mune gare gare kana yekupedzisira kudhinda.