Ingabe ukuphulukiswa kwe-UV ye-LED kunciphisa i-setoff ephrintiweni ye-offset?

Yebo, ukuphulukiswa kwe-UV kwe-LED kunciphisa kakhulu-futhi kuvame ukuqeda ngokuphelele-ukusethwa ekunyatheliseni kwe-offset.

Ngokungafani nama-inki ajwayelekile we-offset athembele ekumuncweni naseku-oxidation ukuze ome (inqubo engathatha amahora noma izinsuku), ama-inks e-UV e-LED aphulukisa ngokushesha lapho evezwa ekukhanyeni kwe-ultraviolet. Lapho ukukhanya kushaya inki, ukusabela kwamakhemikhali okubizwa ngokuthi i-polymerization kwenzeka, kuguqula inki ewuketshezi ibe yi-polymer eqinile ngokushesha. Ngoba inki yomile ngokuphelele ngaphambi kokuba iphepha lifinyelele esitaki sokulethwa, ayikho inkinobho emanzi yokudlulisela ngemuva kweshidi elingenhla kwalo. Lokhu kuvumela amaphrinta ukuthi aqhube umshini ngesivinini esiphezulu, aqede ukusetshenziswa kwe-anti-setoff spray powder, futhi ahambise imisebenzi ngokushesha ekuqedeni ngaphandle kokulinda isikhathi sokumisa.

Kuyini i-setoff futhi kungani kuyinkinga?

I-Setoff ingenye yekhanda eliphikelelayo kakhulu ekunyatheliseni kwendabuko kwe-offset. Kwenzeka lapho inkinobho emanzi evela ngaphambili kweshidi eliphrintiwe idluliselwa ngemuva kweshidi elibekwe phezu kwalo enqwabeni yokulethwa.

Ekuphrintiseni okujwayelekile, amaphrinta alwa nalokhu ngokuthi:

• Nciphisa ijubane lokucindezela.
• Ukugijima izitaki ezincane (ukunciphisa isisindo / ingcindezi).
• Ukusebenzisa inani elikhulu le-anti-setoff spray powder (okudala igebe phakathi kwamashidi).

Ngenkathi lezi zindlela zisebenza, ziyaphazamiseka, zidla isikhathi, futhi zingathinta ikhwalithi yokugcina yokuphrinta. Ukwethulwa kwe- UV LED Curing for Offset Printing iguqule le nqubo ngokubhekana nembangela eyisisekelo: ijubane lokomisa.

Yini ebangela i-setoff ekushicileleni kwe-offset?

I-Setoff ibangelwa inhlanganisela yeyinki emanzi, ukumbozwa kweyinki esindayo, kanye nengcindezi / isisindo sesitaki sephepha.

Lapho amashidi amasha ehlanganiswe kuyunithi yokulethwa, isisindo senqwaba sidala ingcindezi. Uma inkinobho iqukethe amafutha angakafakwa noma ahlanganiswe ne-oxidized, leyo ngcindezi iphoqa i-pigment ephepheni elingenhla.

Izici eziningana zibhebhethekisa ukuphrinta okujwayelekile:

• Ukumbozwa Okuphezulu Kweyinki: Izithombe eziminyene ezimnyama ezicebile noma imibala esindayo zithatha isikhathi eside ukoma.
• Iphepha elihlanganisiwe: Amaphepha acwebezelayo noma ama-matte ahlanganisiwe anekhono elincane lokumunca kunamasheya angafakwanga, agcina inkinobho ebusweni isikhathi eside.
• Ugesi we-Static: Lokhu kungadonsa amashidi ndawonye ngokuqinile, kwandisa ukudluliswa kwe-inki.

Ngoba izinhlelo ze-UV ze-LED ziphulukisa inkinobho ngokushesha, lezi zinto ziba yinto engabalulekile maqondana ne-setoff. "Ukomisa" kwenzeka ngengxenyana yomzuzwana ngaphansi kwesibani, hhayi esitabeni.

Ingabe udinga i-Spray Powder ene-LED UV Offset?

Ezimweni eziningi, cha. Ukuphulukiswa kwe-UV ye-LED kuqeda isidingo se-anti-setoff spray powder.

I-anti-setoff powder ngokuyisisekelo isitashi esisetshenziselwa ukudala igebe lomoya elibonakalayo phakathi kwamashidi ukuvimbela ukunamathela. Njengoba amashidi aphulukisiwe e-LED e-UV omile ngokuthinta ngokushesha lapho ephuma emshinini, awanamatheli ndawonye.

Ukuqeda i-spray powder kunikeza izinzuzo ezintathu ezinkulu zokusebenza:

1. I-Cleaner Pressroom: Uthuli lwempuphu lungena yonke indawo-kuma-bearings, izinzwa, kanye nabaqhubi bomoya abaphefumulayo. Ukuyisusa kunciphisa ukugcinwa.
2. Ukuqedwa okubushelelezi: I-Powder ingashiya ukuthungwa okubi kuphrinta (umphumela we- "sandpaper"). Amaphrinta e-UV abushelelezi ngokushesha.
3. I-Lamination esheshayo: Awudingi ukulinda inki ukuthi yome noma ihlanze i-powder ngaphambi kokulaminetha noma ukunyathela ucwecwe.

Ukwelashwa kwe-UV kwe-LED kuvimbela kanjani ukugcwala i-inki?

Ukuphulukiswa kwe-UV kwe-LED kuvimbela ukugcoba ngokusebenzisa ama-wavelengths athile okukhanya ukuqala ama-photoinitiators ku-inki, ukuqinisa ngokushesha.

Lapho isibani se-UV LED sikhipha ukukhanya (imvamisa kuma-wavelengths angama-385nm noma angama-395nm), ama-photoinitiators ku-inki ye-UV amunca la mandla futhi aqale ukusabela kweketanga. Ama-oligomers awuketshezi nama-monomers anqamula ifilimu eqinile efana nepulasitiki.

Kodwa-ke, ukusetha okufanele, kuyadingeka. Uma ukuqina kwesibani kuphansi kakhulu noma ukwakheka kweyinki kungahambisani ne-spectrum yokukhanya, inkinobho ingaphulukisa kuphela ebusweni (isikhumba) ngenkathi ihlala imanzi ngaphansi. Lokhu kungaholela ekuhlulekeni kokunamathela. Kubalulekile ukuqapha uhlelo lwakho ukuze ukuvimbela UV inki smearing nge efanele LED ukwelapha izivumelwano.

Ukuqhathanisa: Okujwayelekile vs. I-LED UV Offset

Ingabe ukuphulukiswa kwe-UV ye-LED ingcono kune-UV ejwayelekile?

Yebo, ezitolo eziningi zanamuhla zokuphrinta, i-LED UV inikeza izinzuzo ezinkulu ngaphezu kwezibani ezindala ze-mercury-vapor (H-UV noma i-UV yendabuko

Ngenkathi i-UV yendabuko nayo iphulukisa ngokushesha futhi inciphisa i-setoff, ikhiqiza ukushisa okukhulu ne-ozone. I-UV ye-LED inikeza inzuzo efanayo "eyomile ngokushesha" ngaphandle kokuphazamiseka kokushisa.

• Ukunciphisa ukushisa: izibani ze-LED zipholile. Lokhu kuvimbela ama-substrates epulasitiki noma amafilimu amancane ukuthi aphenduke, okuyinkinga ejwayelekile ngezibani zendabuko ze-UV ezishisayo.
• Ukusebenza kahle kwamandla: Ama-LED asebenzisa amandla amancane kakhulu futhi avula kuphela lapho ishidi lidlula ngaphansi.
• Isikhathi Sokuphila Kwesibani: Ama-diode e-LED angahlala amahora angama-20,000 +, kuyilapho ama-mercury bulbs ewohloka ngokushesha.

Yize ubuchwepheshe buhluke kancane phakathi kwezindlela zokuphrinta, izimiso zokusebenza kahle kwamandla zihlala zifana. Uma futhi uphatha imigqa yedijithali, ukuqonda isibani sokuphulukisa se-UV LED esingcono kakhulu sokuphrinta kwe-inkjet kungakusiza ukuthi ulinganise ulwazi lwakho lwe-UV wavelengths kanye nokukhishwa kwamandla esikhungweni sakho.

Umthelela wokusebenza ngesikhathi sokujika

Njengoba i-setoff ayiseyona ingozi, ukuhamba komsebenzi kwesitolo sokuphrinta kushintsha kakhulu. Esitolo esivamile, ama-pallets ephepha eliphrintiwe kufanele ahlale phansi ukuze "aphume igesi" noma omiswe ngaphambi kokuba asikwe, asongwe, noma athunyelwe. Lokhu kudala i-bottleneck.

Nge-UV ye-LED:

• Phrinta ukusika: Ungathatha isitaki ngqo kusuka ekulethweni komshini kuya kumsiki we-guillotine.
• Ukuphrinta ukuthunyelwa: Ama-oda okusheshayo angaphrinta futhi athunyelwe ngosuku olufanayo.
• I-Duplexing: Ungaphrinta uhlangothi lwesibili ngokushesha ngaphandle kokulinda uhlangothi lokuqala ukuthi lome ("ukusebenza-futhi-ukujika").

Ngenkathi imishini ihlukile, isayensi eyisisekelo yokuthi ukukhanya kwelapha kanjani inki kuyafana kuyo yonke imboni. Ukuze uthole ukucwila okujulile kwezobuchwepheshe kwinqubo yokuxhumanisa isiphambano, kuyasiza ukubuyekeza indlela ukuphulukiswa kwe-UV LED kusebenza kanjani ekushicileleni kwe-inkjet, njengoba ukusabela kwamakhemikhali (i-polymerization) kwabelana ngokufana okuningi ne-offset UV chemistry.

Imibuzo Evame Ukubuzwa

Ngingakwazi ukubuyisela kabusha umshini wami okhona we-offset nge-UV ye-LED?

Yebo, imishini eminingi emidala ye-offset ingabuyiselwa kabusha ngezinhlelo zezibani ze-UV ze-LED. Lokhu kuvame ukuba yindlela engabizi kakhulu yokuqeda i-setoff nokwandisa umthamo ngaphandle kokuthenga umshini omusha.

Ingabe inkinobho ye-UV ye-LED ibiza kakhulu kune-inki evamile?

Yebo, izindleko zekhilogremu ngayinye ye-inki ye-UV ye-LED ngokuvamile iphakeme kunama-inki ajwayelekile asuselwa kuwoyela. Kodwa-ke, ukonga i-powder yokufafaza, amandla, ukunciphisa imfucuza, nezikhathi ezisheshayo zokuguqula zivame ukukhipha izindleko eziphakeme zokusetshenziswa.

Ingabe ukuphulukiswa kwe-UV kwe-LED kusebenza ephepheni elingafakwanga?

Impela. Eqinisweni, i-UV ye-LED ibukeka kangcono ephepheni elingamboziwe kune-inki ejwayelekile. Ngoba inki iphulukisa ngokushesha, ayifaki imicu yephepha. Lokhu kuholela ezithombeni ezibukhali nemibala egqamile kumasheya angafakwanga.

Ingabe ukuphulukiswa kwe-UV kwe-LED kuzovimbela ngokuphelele i-ghosting?

Ivimbela i-ghosting yemishini ehlobene nokudluliswa kwe-inki emanzi (setoff). Kodwa-ke, "i-ghosting yamakhemikhali" (okwenzeka ngesikhathi sokumiswa kwezitaki ezivamile) isuswa ngokuphelele ngoba inki i-inert uma isiphulukisiwe.

Key Takeaways

• Ukuphulukisa okusheshayo: I-UV ye-LED iguqula inki ibe yinto eqinile ngokushesha, isuse isimo esimanzi esibangela i-setoff.
• Ayikho i-powder edingekayo: Ungaqeda ukungcola nokugcinwa okuhambisana ne-anti-setoff spray powder.
• Ukuhamba komsebenzi okusheshayo: Amashidi alungele ukuqedwa ngokushesha, okuvumela ukukhiqizwa kosuku olufanayo.
• Ikhwalithi ephakeme: Ivimbela ukumuncwa kweyinki kumasheya angafakwanga, okuholela ekuphrintiweni okubukhali nokukhanyayo.

Isiphetho

Ukushintshela ekuphulukiseni kwe-UV ye-LED kungenye yezindlela eziphumelela kakhulu zokuqeda i-setoff ekuphrintiweni kwe-offset. Ngokushintsha inqubo ehamba kancane ye-oxidation nge-polymerization esheshayo, awugcini nje ngokususa ubungozi bokudluliswa kweyinki kodwa futhi uvule ukuhamba komsebenzi okusheshayo, okuhlanzekile nokusebenzayo kokukhiqiza. Uma ubhekene nenkinga yezikhathi zokomisa noma ukugcoba, sekuyisikhathi sokuhlola ubuchwepheshe bakho bokwelapha.

Ukulungele ukuthuthukisa amakhono akho okuphrinta? Hlola umhlahlandlela wethu ku UV LED Curing for Offset Printing ukuthola isixazululo esifanele sokushicilela kwakho.