nkhani

Chiyambi:

Mu multicolor offset kusindikiza, mtundu wosindikiza umadalira zinthu zingapo zowongolera, chimodzi mwazomwe ndikusindikiza kwamtundu.Choncho, ndikofunika kwambiri kusankha ndondomeko yoyenera ya mtundu wa mtundu wosindikiza.Kukonzekera koyenera kwa katsatidwe ka mitundu kudzachititsa kuti mtundu wa zinthu zosindikizidwa ukhale woyandikana kwambiri ndi mipukutu yoyambirira.Pepalali likufotokoza mwachidule mphamvu ya kusindikiza kwa mtundu wa mtundu wa zinthu zosindikizidwa.

Kusindikiza kwamitundu yotsatizana

Kusindikiza kwamtundu kumatanthawuza dongosolo la kusindikiza kwa monochrome mu kusindikiza kwamitundu yambiri.Mwachitsanzo, chosindikizira chamitundu inayi kapena chosindikizira chamitundu iwiri chimakhudzidwa ndi kutsatizana kwamitundu.Nthawi zambiri, ndiko kugwiritsa ntchito kachitidwe kosiyanasiyana kamitundu posindikiza, zotsatira za kusindikiza zimakhala zosiyana, nthawi zina kusindikiza kwamtundu kumatsimikizira kukongola kwa nkhani yosindikizidwa kapena ayi.

01 Ubale pakati pa makina osindikizira ndi mtundu wotsatizana Nambala ya mtundu wa makina osindikizira iyenera kuganiziridwa posankha ndondomeko ya mtundu wosindikiza.Makina osindikizira osiyanasiyana akuyenera kugwiritsidwa ntchito kusindikiza ndi mitundu yosiyanasiyana yamitundu chifukwa cha mawonekedwe awo osiyanasiyana.

Makina a monochrome

Makina a monochrome ndi a makina osindikizira onyowa.Pepala pakati pa mtundu kusindikiza n'zosavuta anawonjezera ndi opunduka, kotero ambiri woyamba kusindikiza pa kulondola kwa overprinter zofunika wachikasu ndi wakuda, mpaka pepala amakonda kukhala okhazikika ndiyeno kusindikiza mtundu kusindikizidwa.Pamene mtundu woyamba wosindikiza uuma, voliyumu yosinthira inki imakhala pamwamba pa 80%.Pofuna kuchepetsa kusiyana kwa mtundu mu overprinter, chotsani mtundu wofunikira pachithunzichi, choyamba muyenera kusindikiza kamvekedwe kake.

Makina amitundu iwiri

Mitundu ya 1-2 ndi 3-4 ya makina amitundu iwiri ndi ya makina osindikizira onyowa, pamene mitundu yachiwiri ndi yachitatu ndi ya makina osindikizira onyowa.Mitundu yotsatirayi imagwiritsidwa ntchito posindikiza: 1-2 mtundu wosindikiza magenta - cyan kapena cyan - magenta;3-4 mtundu kusindikiza wakuda-wachikasu kapena wachikasu-wakuda.

Makina a Multicolor

Mipikisano mitundu makina chonyowa atolankhani chonyowa yosindikiza, amene amafuna kuti inki aliyense ayenera kukhala wolondola pa overprinter yomweyo, ndi overprinter inki mavuto, sangakhale inki ina kuchokera pamwamba kusindikiza "kuchotsa".Mu zenizeni kusindikiza boma, woyamba mtundu inki mu overprinting wa mtundu wachiwiri, mtundu wachitatu ndi mtundu wachinayi, nayenso, mbali ya inki amatsatiridwa bulangeti, kuti wachinayi mtundu bulangeti mwachionekere amapereka anayi- chithunzi chamtundu.Inki yamtundu wachitatu imatsatiridwa mochepera, inki ya 4 yokha ndiyomwe imasungidwa 100%.

02 Ubale pakati pa mawonekedwe a inki ndi kutsatizana kwamitundu

Makhalidwe a inki ndi kalembedwe kake

Posankha mtundu wotsatizana (makamaka kusindikiza kwamitundu yambiri), ganizirani za mawonekedwe a inki: kukhuthala kwa inki, makulidwe a filimu ya inki, kuwonekera, kuyanika, etc.

Viscosity

Kukhuthala kwa inki kumakhala ndi gawo lodziwikiratu pakusindikiza mochulukira.Mu kusankha ayenera kukhala zochepa zamadzimadzi, mamasukidwe akayendedwe a inki lalikulu kutsogolo.Ngati palibe kuganizira inki mamasukidwe akayendedwe zidzachitika "m'mbuyo overprints" chodabwitsa, adzatsogolera inki mtundu kusintha, chifukwa mu kusamveka chithunzi, imvi mtundu, lackluster.

General anayi mitundu inki mamasukidwe kukula ndi wakuda> wobiriwira> magenta> wachikasu, kotero ambiri mitundu inayi makina kwambiri ntchito "wakuda cyan - magenta - yellow" kusindikiza mtundu zinayendera, kuonjezera fastness wa overprinting.

Makulidwe a filimu ya inki

Makulidwe a filimu ya inki ndiye chinthu chofunikira kwambiri kuti muchepetse kutsika kwamitundu yosindikiza.Inki filimu ndi woonda kwambiri, inki sangathe wogawana kuphimba pepala, kusindikiza chophimba luster, mtundu amakhala osaya, fuzzy;Kanema wa inki ndi wandiweyani kwambiri, wosavuta kupangitsa kuti ma mesh point achuluke, mtundu wa phala, wosanjikiza wokhumudwitsa.

Ambiri, kusankha kuwonjezeka inki filimu makulidwe a ndondomeko kusindikiza mtundu, ndicho "wakuda - wobiriwira - magenta - wachikasu" kusindikiza, kusindikiza zotsatira bwino.

Kuwonekera

Inki poyera zimadalira kusiyana refractive index wa inki ndi zomangira.Diaphaneity inki pambuyo overprinting mtundu chikoka chachikulu, monga pambuyo overprinting mtundu overprinting n'zovuta kusonyeza mtundu olondola;Inki yowoneka bwino kwambiri - kusindikizidwa kwamitundu yambiri, kuwala koyambirira kosindikiza kwa inki kudzera mu inki yosindikizira pambuyo pake, kumapangitsa kuti mitundu ikhale yabwinoko.Choncho, osauka mandala inki choyamba, mkulu mandala inki pambuyo kusindikiza.

Zouma

Kuchokera pa kuyanika kwa inki kuganizira, kuti mupangitse kusindikiza kwa inki yowala, gloss zabwino zosindikizira, mukhoza kusindikiza pang'onopang'ono inki yosindikizira yoyamba, kusindikiza inki yowumitsa mofulumira pambuyo pake.

03 Ubale pakati pa katundu wa pepala ndi mndandanda wamtundu

Mapepala amakhudza mwachindunji ubwino wa nkhani zosindikizidwa.Pamaso kusindikiza, pepala makamaka kuganizira kusalala, tightness, mapindikidwe, etc.

Kusalala

Kusalala kwambiri kwa pepala, kusindikiza kumalumikizana kwambiri ndi bulangeti, kumatha kusindikizidwa ndi mtundu wa yunifolomu, chithunzi chowoneka bwino cha mankhwalawa.Ndipo otsika kusalala kwa pepala, kusindikiza chifukwa cha m'mbali pamwamba pa pepala, inki kutengerapo adzakhudzidwa, chifukwa kusindikiza inki filimu makulidwe, fano munda mbali ya inki mayunifolomu utachepa.Choncho, pamene kusalala kwa pepala ndi otsika, pigment granule coarse inki pa mtundu woyamba.

Kulimba mtima

Kuthina kwa mapepala ndi kusalala kwa pepala kumagwirizana kwambiri.Kawirikawiri, kusalala kwa pepala ndi kuwonjezeka kwa kulimba kwa pepala ndikuwongolera.Kulimba kwakukulu, kusalala bwino kwa pepala kusanayambe kusindikiza mtundu wakuda, mutatha kusindikiza mtundu wowala;M'malo mwake, woyamba kusindikiza kuwala mtundu (chikasu), pambuyo mdima mtundu, izi makamaka chifukwa chikasu inki akhoza kuphimba pepala ubweya ndi ufa ndi zina pepala zolakwika.

Kusintha

Pa ndondomeko yosindikiza, pepala adzakhala wopunduka ndi anawonjezera kumlingo wina kudzera wodzigudubuza ndi zotsatira za kuthamanga madzi, amene amakakamizika bwanji kulondola kusindikiza overprint.Chifukwa chake, akuyenera kusindikiza kaye gawo la mtundu wocheperako kapena mtundu wakuda, ndiyeno sindikizani gawo la mtundu wokulirapo kapena mtundu wopepuka.

04 Mtundu wapadera wotsatizana wa zisindikizo zapadera

Mu kusindikiza ndi kubereka kwa ntchito zapadera zapachiyambi, kusindikiza kwa mtundu wosindikizira kumagwira ntchito yobisika kwambiri, yomwe siingangopangitsa kuti ntchito yosindikizira ikhale pafupi kapena kubwezeretsanso choyambirira, komanso kuti iberekenso chithumwa chojambula choyambirira.

Mtundu wapachiyambi

Mipukutu yoyambirira ndiyo maziko a kupanga mapulaneti ndi kusindikiza.Zolemba zamitundu yonse zimakhala ndi kamvekedwe kake ndi kamvekedwe kakang'ono.Mumitundu yayikulu, pali mitundu yoziziritsa (yobiriwira, buluu, yofiirira, etc.) ndi mitundu yofunda (yachikasu, lalanje, yofiira, etc.).Posankha mtundu dongosolo, ayenera kutsatira mfundo ya pulayimale ndi sekondale.Chifukwa chake, mumayendedwe amtundu wamtundu, wokhala ndi mitundu yofunda makamaka yosindikizidwa yakuda, yobiriwira, yofiira, yachikasu;Kuziziritsa mtundu - zochokera kusindikiza zofiira, mutatha kusindikiza zobiriwira.Ngati kamvekedwe chachikulu cha kupenta malo ndi ozizira mtundu, mtundu zinayendera ayenera kuikidwa pa mbale wobiriwira kenako kapena kusindikiza komaliza;Ndipo liwu lalikulu la chithunzi chojambula cha mtundu wofunda, mpaka magenta, liyenera kuikidwa mu magenta pambuyo pake kapena kusindikiza komaliza, kuti kamvekedwe kake kakhale kozungulira chithunzicho kuwunikira mutuwo.Komanso, liwu lalikulu lachi China chojambula chakuda, chakuda chiyenera kuikidwa pambuyo pake kapena kusindikiza komaliza.