izindaba

Ngenxa yomehluko omkhulu wokushisa kwemvelo yokunyathelisa kanye nomswakama, izimo zenqubo yezakhiwo ezahlukene kanye nokuphrinta, uhlobo ngalunye lwe-pigment kayinki, isixhumanisi esisetshenziswa ingxenye yezinto ezibonakalayo kanye nokugcwalisa impahla cishe njalo, uma namanje ayikwazi ukuhlangabezana nemfuneko izimo ezihlukahlukene zokufaneleka kokuphrinta, izithasiselo zikayinki wokuphrinta zingase zengezwe ukuze kulungiswe uyinki ukuze ukwenze uhlangabezane nezimfuneko zokufaneleka zokuphrinta.Leli phepha lethula kafushane indima yezithasiselo zikayinki ezivamile nezindlela zazo zokusebenzisa, okuqukethwe kwereferensi yabangane:

Izithasiselo zikayinki

Izinsiza ze-inki ziyizinto ezisizayo ezisetshenziselwa ukulungisa uyinki ukuze uvumelane nezimo ezihlukahlukene zokuphrinta.Kunezinhlobo eziningi zezithasiselo zikayinki, izinto ezinamathelayo ezisetshenziswa kakhulu, i-ejenti yokufafaza yokukhanya, i-desiccant, i-ejenti yokomisa kancane, i-diluent, i-ejenti ekwazi ukumelana nokungqubuzana, i-gloss yamafutha ekhava, ngaphezu kwalezi zithako ezimbalwa ezivame ukusetshenziswa ezingenhla, kune-anti-fouling agent, i-anti. -i-ejenti ye-foam, amafutha okunyathelisa, njll. Ngokombono wokuthuthukisa ukusebenza kahle kokunyathelisa kanye nekhwalithi, ngokuvumelana nezimo zokunyathelisa ezishintshayo, kunenzuzo ukwengeza ezinye izithasiselo ngokufanele kumayinki akhethiwe ukuze kuqinisekiswe ukuphrinta okuvamile.

01 Ukuhoxiswa Kwezinto Ezinamathelayo

Izinamathiselo zine-viscosity encane futhi zivame ukusetshenziswa ku-lithography kanye noyinki wokuphrinta wokusiza ukunciphisa i-viscosity yabo.Ekushicileleni kwe-offset, ngenxa yezinguquko zezakhiwo zephepha nezimo zokuphrinta, njengokumuncwa kwamafutha, amandla aphansi aphansi, ukwehla kwe-coating coating enhle nebi, lapho i-desiccant idlulele noma izinga lokushisa legumbi le-workshop yokunyathelisa liphansi kakhulu, lizokwenza. kubangela izinwele zephepha, ipuleti lesitaki sokuphrinta, ipuleti lokunamathisela namanye amaphutha, okuthinta ikhwalithi yokuphrinta.Ngakho-ke, lapho kwenzeka lesi simo esingenhla, inani elifanele le-ejenti yokususa i-adhesive lingangezwa ukwenza buthaka futhi kuqedwe indima yamaphutha angenhla.

02 Kuvela kuMmeli Wokukhanya

Khipha i-diluent, eyaziwa nangokuthi i-diluent, iyinani elikhulu lezithasiselo zokuphrinta ze-offset.Kunezincibilikisi ezimbili ezivamile: enye ingamafutha asobala, asetshenziselwa uyinki okhanyayo;Enye i-resin - uhlobo lwe-diluent, esetshenziselwa uyinki we-resin.Uma umbala we-inki wokuphrinta utholakala ujule kakhulu ukubuyisela umbhalo wesandla wokuqala, ungangeza inani elilungile le-ejenti yokukhanya, ukuze uzuze umphumela ofanele.

03 I-Desiccant

I-Desiccant ingenye yezinsiza ze-inki ezibaluleke kakhulu zokuphrinta.Ngokwezimo ezihlukene zokunyathelisa kanye nephepha lokunyathelisa, inani le-desiccant, uhlobo kanye nendlela yokusebenzisa nayo ihlukile.I-desiccant evame ukusetshenziswa ngamafutha omile obomvu, amafutha amhlophe omile izinhlobo ezimbili, amafutha obomvu owomile omile aphuma ngaphandle kuya ngaphakathi, amafutha amhlophe omile angaphandle ngesikhathi esifanayo omile.Lapho nginyathelisa, ngikhetha uhlobo lwamafutha okomisa ngokwezidingo zokunyathelisa nombala weyinki.Isilinganiso sikawoyela wokoma okujwayelekile singama-2% -3%, amaningi kakhulu azobuyisela emuva, ukuze izinga lokumisa lehle.

04 I-ejenti yokomisa kancane

I-Desiccant eyaziwa nangokuthi ama-antioxidants, lena i-desiccant kanye nezithako ze-inki eziphambene.Enkambweni yokunyathelisa, ngenxa yezizathu ezihlukahlukene ngokuvamile kubangele isikhathi sokuphumula, lapho isikhathi sokuphumula isikhathi eside, inki izomisa isikhumba.Ukuze uxazulule lolu hlobo lwenkinga, ngokuvamile kudingekile ukwengeza inani elifanele le-desiccant kuyinki emshinini, futhi ugijime umshini izikhathi ezimbalwa, ukuze ungasheshi kakhulu ukomisa.

05 Mncane,

Ekunyatheliseni, ngenxa ye-viscosity ye-inki eyeqile noma izinga eliphansi lephepha, amaphutha afana nokudonsa uboya bephepha kanye nokuwa kwepuleti kuvame ukwenzeka, okuthinta ukuphrinta okuvamile.Ngalesi sikhathi, ngaphezu kokwengeza inani elifanele lokunamathisela ukuze kuncishiswe ukubonakala kukayinki, inani elincane le-diluent lingaphinda lengezwe ukuze kuncishiswe ukubonakala kukayinki, ukuze ukuphrinta kuqhubeke kahle.Kunezinhlobo eziningi zamafutha ayinki, ngokuvamile ane-viscosity ephansi ayisithupha kawoyela oyinki.

06 Ukumelana Nokungqubuzana

I-ejenti emelana ne-friction ibizwa nangokuthi i-ejenti eshelelayo.Iningi lalezi zinto zisekelwe ezintweni ze-wax.Uma izinhlayiya zikayinki wokunyathelisa zimahhadla, njengoyinki omhlophe, uyinki wegolide nesiliva, engeza inani elifanele le-ejenti ekwazi ukumelana nokungqubuzana ukuze ukwandise ukumelana nokungqubuzana nokushelela kwezinto zokunyathelisa.

07 Cap Amafutha Akhanyayo

Izimpawu zokuthengisa, ama-albhamu ezithombe neminye imikhiqizo yokuphrinta yezinga eliphezulu, indawo yokunyathelisa ikakhulukazi ngokusebenzisa i-gloss treatment, ukuze kuzuzwe umphumela wokukhanya okuphezulu, ukusetshenziswa kwamafutha ecwebezelayo, kungaxutshwa kuyinki yokuphrinta ngaphambi kokuphrinta, kungaphrintwa ngemuva kokuphrinta. amafutha acwebezelayo.Kodwa ngemva kokunyathelisa kokucubungula i-gloss, ngemva kwesikhathi eside kuyoba phuzi, ukumelana nokukhanya kumpofu, ngakho-ke manje kunezinye izindlela eziningi kuwoyela ocwebezelayo wamafutha okukhanya amasha asetshenziswayo.