Ukusetshenziswa kanye nezinzuzo zezibani zokuphulukisa ze-LED embonini yokuphrinta

Njengoba ubuchwepheshe bokuphrinta buqhubeka nokuvela, izindlela zendabuko zokuphulukisa i-ultraviolet (UV) ziya ngokuya zithathelwa indawo ubuchwepheshe bokwelapha be-LED. Izibani zokuphulukisa ze-LED azigcini nje ngokuhlinzeka ngokusebenza kahle kwamandla kanye nempilo ende yesevisi, kepha futhi zinciphisa kakhulu izindleko zokukhiqiza futhi zithuthukise ikhwalithi yokuphrinta. Le ndatshana ihlola izimiso, izinhlobo, izinzuzo, izimo zokufaka isicelo, nokucatshangelwa kokukhethwa kwezibani zokuphulukisa ze-LED emkhakheni wokunyathelisa, ukusiza abafundi ukuthi bathole ukuqonda okujulile kwalobu buchwepheshe besimanje bokwelapha.

1. Isimiso sokusebenza se-LED Curing Lamps

Isibani sokuphulukisa se-LED sisebenzisa ama-diode akhipha ukukhanya (ama-LED) ukukhipha ama-wavelengths athile wokukhanya kwe-ultraviolet, okwenza kusebenze ama-photoinitiators kuma-inks wokuphrinta noma ukumboza. Lokhu kusebenzela kubangela ukusabela okusheshayo kwe-free-radical noma i-cationic polymerization, ukuguqula inkinobho yamanzi noma ukumbozwa kube yisiphetho esiqinile cishe ngokushesha. Uma kuqhathaniswa bendabuko mercury isibani ukuphulukisa, ukuphulukiswa LED inikeza izici ezilandelayo ezibalulekile:

1. Izibani
   zokuphulukisa ze-LED zivame ukukhipha i-UVA ngamabhendi amancane azungeze i-365 nm, 385 nm, 395 nm, noma i-405 nm. Ngokuphambene nalokho, izibani ze-mercury zikhiqiza ububanzi obubanzi obubandakanya i-UVB (280 - 315 nm) ne-UVC (100 - 280 nm). Le spectrum egxile kakhulu isho ukuthi okukhiphayo kwe-LED kungahambisana kakhulu nesiqongo sokumuncwa kwe-photoinitiator, ngaleyo ndlela kwandisa ukusebenza kahle kokwelapha.
2. Ngokungafani
   nezibani ze-mercury ezidinga isikhathi sokushisa ukuze zifinyelele izinga lokushisa lokusebenza, izibani zokuphulukisa ze-LED zifinyelela ukuqina kwemisebe yazo eklanyelwe cishe ngokushesha lapho zinika amandla. Zipholisa ngokushesha lapho zicishiwe, zivumela ukusebenza "okufunwayo". Lesi sici sithuthukisa ukuguquguquka komugqa wokukhiqiza futhi sinciphisa ukuphazamiseka kokugeleza kokukhiqiza.
3. Ngenkathi
   kukhipha ukukhanya kwe-ultraviolet, izibani zokuphulukisa ze-LED zikhiqiza ukushisa okuncane kakhulu kunezibani ze-mercury zamandla alinganayo. Ngenxa yalokho, ama-substrates azwela ukushisa afana namafilimu epulasitiki noma amalebula okushisa awathambekele kakhulu ekusontekeni, ukusonteka, noma ukuwohloka ngesikhathi senqubo yokuphulukisa, okusiza ukugcina ubuqotho bezinto ezibonakalayo.
4. Isikhathi Sokuphila Isikhathi Eside Nokugcinwa Okuphansi
   Impilo yesevisi yesibani sokuphulukisa se-LED ngokuvamile inwebeka phakathi kwamahora angama-20,000 no-30,000 okusebenza, kuyilapho isibani se-mercury sendabuko sihlala amahora angama-500 kuye kwangama-2,000 kuphela. Ukushintshwa okuncane kuhumusha izindleko eziphansi zesondlo. Ngaphezu kwalokho, izinhlelo zokuphulukisa ze-LED zinezakhiwo zangaphakathi ezilula futhi azidingi umhwamuko we-mercury noma izifunda zokupholisa eziyinkimbinkimbi, ukunciphisa izingozi zemvelo nokuphepha.

2. Izinhlobo ezinkulu ze-LED Curing Lamps ekunyatheliseni

Ngokuya ngendlela yokuphrinta nobubanzi obudingekayo bokuphulukisa, izibani zokuphulukisa ze-LED zingahlukaniswa ngezigaba eziningana. Isigaba ngasinye sihlukile ku-irradiance (ukuminyana kwamandla), ububanzi bekhanda lesibani, indlela yokupholisa, kanye ne-wavelength esebenzayo. Nazi izinhlobo ezivame kakhulu ezitholakala embonini yokunyathelisa:

1. Imigoqo yokuphulukisa ye-LED ehlanganisiwe
   • Izici: Lezi zibani zinobubanzi obusukela ku-20 mm kuya ku-80 mm kanye nobuningi bamandla phakathi kuka-8 W / cm² no-16 W / cm². Zingafakwa kalula kumaphrinta amancane edijithali, amaphrinta wedeskithophu e-UV LED, noma amadivaysi okuphulukisa aphathwayo.
   • Izicelo: Ilungele ukuphrinta kwedijithali kwe-UV yedeskithophu, amapeni okuphulukisa aphathwayo, noma yisiphi isimo esidinga ukuphulukiswa kwasendaweni noma i-prototyping encane. Usayizi wabo ohlangene nesisindo esikhanyayo kubenza balungele ukuphulukiswa kokuphela komugqa noma ukuqedwa kwe-post-print.
2. Amayunithi Wokuphulukisa Okuphakathi Nendawo
   • Izici: Ngobubanzi obuphakathi kuka-80 mm no-150 mm kanye nobuningi bamandla kusuka ku-12 W / cm² kuya ku-24 W / cm², amayunithi osayizi aphakathi nendawo avame ukusetshenziswa kumaphrinta amancane wewebhu noma amaphrinta amancane kuya kwaphakathi nendawo.
   • Izicelo: Imvamisa itholakala ekunyatheliseni ilebula lewebhu elincane, imishini ye-inkjet yewebhu emincane, kanye nemigqa yokuphrinta yokupakisha kokubili ngaphambi nangemva kokuphulukisa. Izinhlelo zabo zokupholisa ezihlanganisiwe (kungaba ezipholile emoyeni noma ezipholile ngamanzi) ziqinisekisa ukusebenza okuzinzile ngesikhathi sokusetshenziswa okuqhubekayo.
3. Amamojula we-LED Wide Curing
   • Izici: Lawa mamojula anganweba ububanzi be-325 mm, 500 mm, noma ngaphezulu, ngobuningi bamandla afinyelela ku-30 W / cm². Bavame ukusebenzisa umklamo we-modular, okuvumela imigoqo eminingi yezibani ukuthi ihlanganiswe ukuze ihambisane nobubanzi bocindezeli obudingekayo.
   • Izicelo: Isetshenziswe ukuphrinta emaphaketheni ezinkulu-ifomethi, ukukhiqizwa kwebhodi kanye ne-banner, ukuphrinta kwendwangu, kanye nokuphulukiswa kwe-UV ngemuva kwe-offset. Izinhlelo ezithuthukisiwe zokushabalalisa ukushisa (ezivame ukupholiswa ngamanzi) zigcina ukukhishwa okuzinzile, kubenza balungele imigqa yokuphrinta enejubane eliphakeme edinga ukuphulukiswa okufanayo, okunamandla kakhulu.
4. Izinhlelo zokwelapha ngesandla noma zendawo
   • Izici: Lezi zibani zesitayela sepeni noma ezincane zikhipha phakathi kuka-3 W no-15 W, zigxile endaweni emincane yokuphulukisa okuqondile kwendawo. Zihlangene kakhulu futhi zilula kubasebenzisi ukukhomba izindawo ezithile.
   • Izicelo: Ilungele ukulungiswa kwendawo, ukwenza amasampula, ukulungiswa kwasendaweni, ukuqedwa kokuphrinta ngemuva kokuphrinta, noma ukuphulukisa izindawo zokunamathela ze-UV. Ukuphatheka kwabo kanye nogongolo olugxile kuvumela opharetha ukuthi baphuluke noma iyiphi indawo ngokunembile, kungakhathalekile ijubane lokucindezela.

3. Izinzuzo eziyinhloko ze-LED Curing Lamps ekunyatheliseni

Uma kuqhathaniswa bendabuko mercury isibani ukuphulukisa, infrared omisiwe, noma emoyeni oshisayo, LED ukuphulukisa izibani zinikeza izinzuzo ezibalulekile ukuphrinta ukukhiqizwa:

1. Ukusebenza kahle okuphezulu nokonga amandla
   • Ukusetshenziswa okuthuthukisiwe: Izibani ze-LED zingalungiswa ukuze zihambisane nezici zokumuncwa kwe-photoinitiator kuyinki noma ukumboza, ukunciphisa amandla alahlekile.
   • Ukusetshenziswa Kwamandla Okuncishisiwe: Ngokusebenza okufanayo kokuphulukisa, izibani zokuphulukisa ze-LED zivame ukusebenzisa kuphela i-30% kuya ku-50% yamandla adingekayo ezinhlelweni zezibani ze-mercury. Ngokuhamba kwesikhathi, lokhu kuhumusha ekunciphiseni okukhulu kwezindleko zikagesi zemisebenzi yokuphrinta.
2. Izindleko eziphansi zesondlo
   • Impilo Yesevisi ende: Ama-LED angagijima cishe amahora angama-30,000 ngaphandle kokuwohloka okuphawulekayo kokukhipha, okude kakhulu kunezibani ze-mercury. Lokhu kuhlala isikhathi eside kunciphisa imvamisa yokushintshwa kwesibani mhlawumbe kanye ngonyaka noma ngaphansi, ukunciphisa isikhathi sokuphumula nezindleko zesondlo.
   • Ukugcinwa Okulula: Izinhlelo zokuphulukisa ze-LED azidingi ukuphatha umhwamuko we-mercury noma amashubhu wesibani engilazi abuthakathaka, ukunciphisa izingozi zokuphepha nokwenza lula izinqubo zesondlo.
3. Iphrofayili Yokushisa Enobungane
   • Isizukulwane sokushisa esiphansi: Ama-LED akhipha imisebe encane kakhulu ye-infrared, anciphisa kakhulu ukudluliswa kokushisa ku-substrate. Lokhu kuyazuzisa ikakhulukazi lapho kuphrinta ezintweni ezizwela ukushisa njengamapulasitiki amancane, ibhodi likathayela noma izindwangu ezingalukiwe.
   • Ukuncishiswa kwe-Warping nokuhlanekezela: Amazinga okushisa aphansi avimbela ukuncipha okushisayo, ukugoqa, noma ukwehluleka kokunamathisela kuma-laminates we-multilayer noma amafilimu abucayi, ukuqinisekisa ukuzinza kobukhulu ngesikhathi sokuphulukisa.
4. Izinzuzo zemvelo nokuphepha
   • Ukusebenza Kwamahhala kweMercury: Izibani zokuphulukisa ze-LED ziqeda umhwamuko we-mercury ngokuphelele, zihambisana nemithetho yezemvelo futhi zisusa ingozi yomsebenzi kubasebenzi bokuphrinta.
   • Ukukhishwa kwe-UV okulawulwayo: Ngenxa ye-optics ehlosiwe, amayunithi okuphulukisa e-LED angavala ngempumelelo imisebe ye-UV ngaphakathi kwezindlu zokuvikela, ukunciphisa ukuvezwa kwabasebenzi emisebeni eyingozi ye-ultraviolet nokwenza ngcono ukuphepha emsebenzini.
5. Ikhwalithi Yokuphulukisa Okuzinzile
   • I-Spectrum engaguquguquki nokuqina: Ama-LED akhipha ibhendi elincane, elizinzile le-wavelength eline-irradiance efanayo, ukunciphisa izinkinga ezingaphansi noma zokuphulukisa ngokweqile ezingaholela ekushintsheni kombala, ukunamathela okungalungile, noma ukuwohloka komhlaba.
   • Ukuqapha Nokulungiswa Kwesikhathi Sangempela: Ngokuhlanganisa izinzwa zokuqina kwe-UV, imigqa yokuphrinta ingaqapha okukhiphayo kwe-LED ngokuqhubekayo. Uma ukukhanya kuwela ngaphansi komkhawulo obekiwe, uhlelo lungaxwayisa opharetha noma lulungise ngokuzenzakalelayo isibani samanje ukuze silondoloze ukungaguquguquki okuhle.

4. Izicelo ezijwayelekile ze-LED Curing Lamps ekunyatheliseni

Njengoba kunikezwe ukusebenza kwabo okuphezulu, umthelela ophansi wokushisa, nobungani bemvelo, izibani zokuphulukisa ze-LED zithole ukwamukelwa okubanzi kulezi zinqubo zokuphrinta ezilandelayo:

1. Ukuphrinta kwe-Flexographic
   Imishini ye-Flexo ivame ukuphrinta kumalebula, amabhokisi kathayela namafilimu epulasitiki. Ukuphulukiswa kwendabuko kwe-flexo kuncike ezinhlelweni zezibani ze-mercury noma kuhhavini womoya oshisayo, okuhamba kancane futhi kungalimaza ama-substrates azwela ukushisa. Ukuphulukiswa kwe-LED kungasetshenziswa ngqo emshinini ukuphulukisa ama-inks asuselwa emanzini noma e-UV emgqeni-ukusheshisa ukudlula ngenkathi kuthuthukiswa ubukhali besithombe nokucwebezela.
2. 
   Amaphrinta we-UV inkjet adinga amayunithi okuphulukisa abekwe ngokushesha ngemuva kwamakhanda okuphrinta ukuze asebenzise amaconsi ngaphambi kokusabalalisa ku-substrate. Izibani zokuphulukisa ze-LED, ngosayizi wazo ohlangene kanye nekhono elisheshayo, zihlanganisa kahle eduze kwamakhanda e-inkjet, okuvumela ukuphulukiswa okusheshayo ukugcina imiphetho ebukhali futhi ugweme ukufuduka kweyinki kuma-substrates ahlukahlukene.
3. Ukuphrinta kwesikrini
   Ukuphrinta engilazini, insimbi, i-ceramics, amapulasitiki, nezinye izinto ezibonakalayo, ama-inks wesikrini se-UV avame ukwelashwa kusetshenziswa imithombo ephezulu ye-spectrum ebanzi. Izibani zokuphulukisa ze-LED zinikeza ibhendi elincane, ukukhishwa okuphezulu kwe-UVA okungaxhuma ngokushesha ukumboza, kuthuthukise isivinini sokukhiqiza nokukhiqiza ukuphrinta okungamelana nokuklwebha, okuhlala isikhathi eside.
4. Ukuphrinta kwe-Offset (Post-Print Spot Curing)
   Ekuhambeni komsebenzi kwe-offset, ukumbozwa okukhethekile okukhethekile-njenge-spot gloss varnish noma imiphumela ethinta / yobukhulu-kudinga ukwelashwa okwengeziwe kwe-UV ngemuva kokucindezela okuyinhloko kokucindezela. Izibani zokuphulukisa ze-LED eziphathekayo zingasebenza njengamathuluzi okuphulukisa indawo, zinikeza indlela eguquguqukayo, ezimele yokwelapha ngokukhetha ukumbozwa kwemiphumela yokuqeda ebonakalayo noma ebonakalayo.
5. Ukuqedwa kwe-Post-Print
   Emisebenzini yokuqeda (ukufa-ukusika, ukugoqa, ukunamathisela, noma ukukhweza), izibani zokuphulukisa ze-LED zisetshenziselwa ukwelapha izinamathiselo, ukumboza, noma ama-laminates. Ukukhishwa kwabo okuphansi kokushisa kunenzuzo ikakhulukazi lapho ku-laminating i-polyethylene, i-polypropylene, noma amanye amafilimu azwela ukushisa, ukuvimbela i-delamination noma ukuqhuma.

5. Ukucatshangelwa kokukhethwa nokugcinwa kwezibani zokuphulukisa ze-LED

Ukufeza ukusebenza okuhle kokuphulukisa, ukukhetha isibani esifanele sokuphulukisa se-LED senqubo yokuphrinta enikeziwe kudinga ukucatshangelwa ngokucophelela kwalezi zinto ezilandelayo:

1. Ukuhambisana kwe-Wavelength
   Ukwakheka okuhlukile kwe-UV kanye nokwakheka kokugqoka kuqukethe ama-photoinitiators amunca kuma-wavelengths ahlukahlukene athile-imvamisa azungeze i-365 nm, 385 nm, 395 nm, noma i-405 nm. Lapho ukhetha isibani sokuphulukisa se-LED, qiniseka ukuthi ubude be-wavelength obukhishiwe buhambisana kakhulu nesiqongo sokumuncwa kwe-photoinitiator ye-inki. Ezinye izinhlelo zokusebenza zizuza kumakhanda we-LED ama-dual-wavelength noma ama-multi-wavelength, angakwazi ukwamukela uhla olubanzi lokwakhiwa.
2. I-Irradiance (Power Density)
   Izinga le-irradiance lithinta ngokuqondile ukuphulukisa ijubane nokujula. Ukuphrinta ilebula nefilimu kuvame ukudinga i-8 W / cm² kuya ku-16 W / cm² yokukhanya, kuyilapho ukumbozwa okujiyile noma ukuphrinta kwefomethi enkulu kungadinga i-20 W / cm² noma ngaphezulu. Bala irradiance edingekayo esekelwe ijubane umugqa, inki ukujiya, futhi oyifunayo ukuphulukisa margin. Izibani ezingaphansi kamandla zingaholela ekwelapheni okungaphelele, kuyilapho izibani ezinamandla kakhulu zichitha amandla futhi zingase zishise ngokweqile i-substrate.
3. Ubude bekhanda lesibani kanye nomklamo
   we-modular Ububanzi bomshini wokunyathelisa noma i-substrate bunquma ubude besibani obudingekayo. Ukuze uthole ububanzi bewebhu obungu-300 mm, khetha isibani esingu-325 mm noma uhlanganise amamojula amaningi amafushane (isb., Imigoqo emithathu ye-100 mm) ukuze uthole okukhiphayo okuqhubekayo. Ngaphezu kwalokho, vumela imvume eyanele yokushabalalisa ukushisa ezungeze ikhanda lesibani futhi uqinisekise ukuthi amabakaki noma ojantshi bayahambisana.
4. Indlela yokupholisa
   Yize ama-LED akhiqiza ukushisa okuncane kakhulu kunezibani ze-mercury, asadinga ukushabalalisa ukushisa okusebenzayo ukugcina izinga lokushisa elifanele lokusebenza (imvamisa ngaphansi kuka-45 ° C). Izinhlelo zokusebenza ezinamandla aphansi, ezingezikhathi ezithile zinganela ngemiklamo epholile emoyeni. Ukugijima okusheshayo, amandla aphezulu ngokuvamile kudinga izinhlelo ezipholile ngamanzi ukuzinzisa izinga lokushisa le-LED junction, ukuqinisekisa ukukhishwa okungaguquguquki nokwandisa impilo yesibani.
5. Ukuhlanganiswa Kwemishini Nokuphepha
   Ngesikhathi sokukhetha, cabanga ukuthi isibani sokuphulukisa sizonamathisela kanjani kumshini wokucindezela noma imishini yokuqeda. Izinketho zokukhweza zingafaka amasilinda womoya, ojantshi abaguquguqukayo ukuphakama, noma amabakaki ahleliwe. Izindlu zesibani kufanele zifake izihlangu zokuzivikela noma izibonisi ezivimbela imisebe ye-UV elahlekile. Faka izinzwa zokuqina kwe-UV ukuze uthole impendulo yesikhathi sangempela, bese usetha ama-interlocks noma ama-shutoffs aphuthumayo ukuvikela opharetha.
6. Izindleko zokugcinwa nokushintshwa
   Yize izibani ze-LED zinesikhathi sokuphila isikhathi eside, ukugcinwa okujwayelekile kusadingeka. Hlanza njalo iwindi le-quartz lesibani kanye nama-vents okupholisa ukuvimbela uthuli, okunganciphisa ukukhiqizwa futhi kusheshise ukugqoka okushisayo. Ukufakwa okukhulu, amakhanda ezibani ze-modular anezixhumi ezisheshayo avumela imigoqo ngayinye ukuthi ishintshe ngaphandle kokuvala wonke umugqa, ukunciphisa isikhathi sokuphumula nezindleko zokufaka esikhundleni.

6. Amathrendi Esizayo Nesiphetho

Njengoba izidingo zomkhakha wokunyathelisa zokuguqulwa okusheshayo, ukwenza ngezifiso, nokuguquguquka kwesikhathi esifushane kuqhubeka nokukhula, ubuchwepheshe bokwelapha be-LED buzoshintsha ngalezi zindlela:

• Amandla aphakeme ne-Spectrum ebanzi: Ama-chips e-LED esizukulwane esilandelayo azoletha amandla amakhulu nge-chip ngayinye. Ukuhlanganisa iziqongo eziningi ze-narrowband (isb., 365 nm + 395 nm) ngaphakathi kwemodyuli eyodwa yesibani kuzokwamukela uhla olubanzi lwamakhemikhali we-photoinitiator, okwenza kube lula ukuphulukiswa okusheshayo nokujulile emindenini ehlukahlukene yeyinki.
• Ukuqapha okuhlakaniphile nokuxhunyiwe: Ukuhlanganisa amakhono e-Intanethi Yezinto (IoT) ezinhlelweni zokuphulukisa ze-LED kuzovumela ukuqapha kwesikhathi sangempela kokukhanya, izinga lokushisa, nempilo yesibani. Ukuxilongwa okukude nokulungiswa kwamapharamitha okuzenzakalelayo kuzonciphisa ukungenelela kwe-opharetha, ukunciphisa ukusetshenziswa kwamandla, nokwandisa impilo yemishini.
• Ukuhambisana Kwemvelo Okuthuthukisiwe Nezindleko Eziphansi: Njengoba ubuchwepheshe be-LED buvuthwa futhi ukukhiqizwa kukhuphuka, izindleko zangaphambili zamayunithi wokuphulukisa i-LED zizoqhubeka nokuncipha. Idizayini yabo engenayo i-mercury, i-ozone ephansi ihlangabezana nemithetho eqinisa imvelo emhlabeni wonke, okwenza kube lula ukuthi izitolo zokuphrinta ziqede izinhlelo ze-mercury zangaphambili.
• Izixazululo Ezihlanganisiwe ne-Modular: Imishini yokuphulukisa ye-LED yesikhathi esizayo izoklanyelwa ukuhlanganiswa kwe- "plug-and-play" kuwo wonke amapulatifomu ahlukahlukene wokuphrinta-noma ngabe i-flexo, i-inkjet, i-offset post-press, noma ngisho nezinqubo zokukhiqiza ezingeziwe ezivelayo. Imigoqo yesibani ye-modular kanye namayunithi wokulawula azosiza ukuhlelwa kabusha okusheshayo kobubanzi obuhlukile, ama-substrates, kanye nesivinini sokukhiqiza.