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Abstract: Mumakore achangopfuura, kudhinda kwemavara kwepantong kwakashandiswa zvakanyanya mukudhinda zvigadzirwa zvekurongedza mapepa.Pantong color inoreva rumwe ruvara kunze kwemavara mana uye musanganiswa wemavara mana, anodhindwa zvakanyanya neingi chaiyo.Pantong color printing process inowanzo shandiswa mukurongedza kudhinda kudhinda yakakura nzvimbo yekumashure ruvara.Iri bepa rinotsanangura muchidimbu hunyanzvi hwepantong color printing control, zvirimo zveshamwari referensi:

Kudhinda kwemavara epantong

Pantong color printing inoreva kudhinda uko mamwe mavara kunze kweyero, magenta, cyan neingi dema anoshandiswa kudzokorora ruvara rwechinyorwa chekutanga.

Zvigadzirwa zvekurongedzerwa kana mabutiro emabhuku nemagazini anowanzo kuumbwa neyunifomu yemavara mabhuroko emavara akasiyana kana akajairwa zvishoma nezvishoma mavara emavara nemashoko.Aya mabhuraki emavara uye mazwi anogona kudhindwa nemavara mana ekutanga mushure mekukamurwa kuita mavara, kana mavara epantong anogona kugovaniswa, uye imwe chete pantong color inki inogona kudhindwa mune imwechete ruvara block.Mukufunga kwakadzama kwekuvandudza kunaka kwekudhinda uye kuchengetedza huwandu hweakadhinda, pantong ruvara kudhinda kunofanirwa kusarudzwa.

1, Pantong kuona ruvara

Parizvino, mazhinji emabhizinesi epamba ekurongedza uye kudhinda pane antong ruvara kuyerwa uye kutonga zvinoreva kunyanya kuvimba neruzivo rwevashandi kuendesa pantong ruvara inki.Izvo zvisingabatsiri zveizvi ndezvekuti chiyero chepantong inki haina kunyatsokwana, nguva yekuendesa yakareba, pesvedzero yezvinoitika.Mamwe mabhizimusi makuru ekurongedza uye ekudhinda atora pantong color inki yekufananidza system kune manejimendi ayo.

Iyo pantong color inki yekufananidza system inoumbwa nekombuta, ruvara inoenderana software, spectrophotometer, analytical chiyero, yakaenzana inki chiridzwa uye inki yekuratidzira chiridzwa.Nesisitimu iyi, mapepa neingi ma parameter ayo anowanzo shandiswa nekambani anounganidzwa mudhatabhesi, iyo ruvara inoenderana nesoftware inoshandiswa kuenderana neruvara rwunopihwa nemutengi otomatiki, uye kukosha kweCIELAB, density value uye △E vari kuyerwa ne spectrophotometer, kuitira kuti iyo data management yepantong ruvara inoenderana neingi inogona kuitika.

2. Zvinhu zvinokanganisa ruvara rwepantong

Mukuita kudhinda, pane zvakawanda zvinhu zvinotungamira kune chromatic aberration mupantong color inki kugadzirwa.Zvinhu izvi zvinokurukurwa muzvikamu zvinotevera.

Kufurira bepa paruvara:

Kufurirwa kwebepa painki layer yeruvara kunonyanya kuratidzwa muzvikamu zvitatu

+Nokudaro, mukugadzirwa kwechokwadi kunofanira kuedza kusarudza kuchena kwakafanana kwekudhinda mapepa, kuitira kuderedza kuchena kwepepa pane ruvara rwekudhinda.

2) kugona kugona: iyo ingi imwechete yakadhindwa pasi pemamiriro akafanana kune akasiyana anonwisa kugona kwebepa, pachava nekusiyana kwekudhinda kupenya.Bepa risiri rekuputira uye bepa rekuputira zvichienzaniswa, dema inki layer ichaonekwa grey, yakagomara, uye ruvara inki layer inoburitsa kudonha, necyan inki uye magenta inki kusanganisa kunze kwekuita kwemavara kuri pachena.

3) kupenya uye kutsvedzerera: kupenya kwechinyorwa kunoenderana nekupenya uye kutsvedzereka kwepepa.Kumusoro kwepepa rekudhinda inzvimbo ye semi-gloss, kunyanya mapepa akavharidzirwa.

Mhedzisiro yekurapa kwepamusoro pane ruvara:

Kurapa kwepamusoro kwezvigadzirwa zvekurongedza kunonyanya kuvharwa nefirimu (chiedza firimu, matt firimu), glazing (inovhara mafuta emwenje, matt mafuta, UV varnish) zvichingodaro.Kudhinda mushure mekurapwa kwepamusoro, pachave nemadhigirii akasiyana ekuchinja kwehue uye shanduko yehuremu hwemavara.Kuvhara firimu yakajeka, kuvhara mafuta akajeka uye mafuta eUV, kuwedzera kwemavara kunowedzera;Paunenge uchipfekedza matte firimu uye kuvhara matte mafuta, kusimba kwemavara kunoderedzwa.Shanduko dzemakemikari dzinonyanya kubva kune yakavharwa glue, UV base mafuta, UV mafuta ane akasiyana organic zvinonyungudutsa, izvo zvinozoita kuti ruvara rwekudhinda inki layer ichinje.

Mhedzisiro yekusiyana kwesystem:

Yakagadzirwa nekugovera mudziyo, ratidza ingi ruvara "yakaoma" muitiro, muitiro wekutora chikamu, pasina mvura uye kudhinda ndeye "wet kudhinda" muitiro, mvura yekunyorovesa inobatanidzwa mukudhinda muitiro, saka mu offset kudhinda inki inosungirwa kuitika mukati mvura-mu-oiri emulsion, emulsion ingi nokuti akachinja pashure kuparadzirwa mamiriro pigment particles ari ingi layer, anosungirwa kubudisa kure ruvara, akadhindwa zvigadzirwa zvakare rima ruvara, kwete kupenya.

Mukuwedzera, musiyano we desalinator uye yakaoma desalinator density yakanga ine imwe mhedzisiro pamuvara.Kugadzikana kweinki inoshandiswa kusanganisa ruvara rwepantong, ukobvu hweinki layer, kurongeka kweinki yekuyeresa, musiyano pakati penzvimbo yekare neitsva yekugovera inki yemuchina wekudhinda, kumhanya kwemuchina wekuprinda, uye huwandu hwemvura pamuchina wekudhinda huchavawo nemhedzisiro yakasiyana pamusiyano weruvara.

3, Pantong color control

Kupfupisa, kuitira kuti ive nechokwadi chekuti mutsauko wemuvara webhechi rimwe chete uye mabheji akasiyana ezvigadzirwa anosangana nezviyero zvenyika uye zvinodiwa nevatengi, ruvara rwepantong runodzorwa sezvinotevera mukudhinda:

Kugadzira pantong ruvara kadhi

Chekutanga, zvinoenderana nemucherechedzo wemavara sample yakapihwa nemutengi, uchishandisa komputa ruvara rwekufananidza system kupa chikamu chepantong color inki;Zvadaro kunze kwemuenzaniso weinki, neine yunifomu inki chiridzwa, inki inoratidzira chiridzwa "kuratidza" hukuru hwakasiyana hwemuenzaniso wemavara;Zvino zvichienderana neyakajairwa yenyika (kana mutengi) pane zvinodiwa nemusiyano weruvara rwemhando, ine spectrophotometer kuona chiyero, isina kudzika muganho, yakadzika muganho, kudhinda yakajairwa kadhi kadhi (musiyano weruvara unopfuura chiyero chinoda kugadziridzwa zvakare).Imwe hafu yekadhi reruvara ndiyo yakajairwa ruvara sampu, imwe hafu ndeye yakagadziriswa ruvara sampu, izvi ndezvekufambisa kushandiswa kwemhando yekuongorora.

Simbisa ruvara

Tichifunga kuti bepa ndicho chinhu chikuru chinokanganisa mutsauko wemavara, saka pamberi pekudhinda kwega kwega kushandisa bepa chairo rekudhinda "ratidza" sampu yemavara, mutsauko wemavara kadhi kuita micro-kururamisa, kuitira kubvisa kufurira bepa.

Kudhinda kutonga

Muchina wekudhinda unoshandisa yakajairwa kadhi reruvara kudzora ukobvu hwepantong ruvara inki layer, uye inobatsira kuyera iyo huru density kukosha uye BK kukosha kweruvara ne densitometer kukurira mutsauko wekuoma uye kunyorova kwemavara einki.

Muchidimbu, mukurongedza kudhinda, kune zvikonzero zvakasiyana-siyana zvepantong color aberration.Izvo zvinodikanwa kuti uongorore zvikonzero zvakasiyana mukugadzirwa chaiko, kugadzirisa matambudziko, kuyedza kudzora kutsauswa mune hudiki renji, uye kugadzira ekurongedza ekudhinda zvigadzirwa zvinogutsa vatengi.