I-UV LED ye-UV Ink Curing: Ukukhetha ikhanda lesibani elifanele

Ukuthola i-UV ephelele eholwa ukuphulukiswa kwe-UV ink kuyisici esisodwa esikhulu ekunqumeni ikhwalithi yakho yokuphrinta nesivinini sokukhiqiza. Noma ngabe usebenzisa imigqa ye-inkjet enejubane eliphakeme noma ukuphrinta ngokunemba kwe-offset, ikhanda lesibani lisebenza njengokushaya kwenhliziyo kohlelo lwakho lokuphulukisa. Uma lokho kushaya kwenhliziyo kungajwayelekile noma kubuthakathaka kakhulu, wonke umugqa wakho wokukhiqiza uyahlupheka.

Lo mhlahlandlela unciphisa umsindo wezobuchwepheshe. Sizohlola ukuthi ungayikhetha kanjani ikhanda lesibani elihambisana nokwakhiwa kweyinki, izidingo zejubane, kanye nemikhawulo ye-substrate.

Iyini indima yekhanda lesibani ekuphulukisweni kwe-UV LED?

Ikhanda lesibani ohlelweni lwe-UV LED lunesibopho sokukhipha amandla e-UV aqondile kuma-wavelengths athile ukuze avuselele ama-photoinitiators ngaphakathi kweyinki. Lokhu kuqalisa i-polymerization, ngokushesha ukuguqula i-inki yamanzi ibe yi-polymer eqinile. Ngokungafani nezibani zendabuko ze-mercury, ikhanda le-LED linikeza ukukhishwa kwe-monochromatic, ukuqinisekisa "ukwelashwa okupholile" ngaphandle kokulimaza ama-substrates azwela ukushisa.

The Shift from Mercury to LED

Kwaphela amashumi eminyaka, imboni ithembele izibani ze-mercury arc. Zazinamandla kodwa zingasebenzi kahle, ziqhumisa ukukhanya okubanzi nokushisa okukhulu. Ngikhumbula iphrojekthi ebandakanya ifilimu encane yokuncipha lapho izibani ze-mercury zihlanekezela izinto kungakapheli imizuzu. Ukushintshanisa ekhanda le-UV LED kuxazulule inkinga yokushisa ngokushesha.

Amakhanda wesibani se-LED anamuhla angamathuluzi okunemba. Azigcini nje ngokuthi "zome" inki; bayayixhumanisa. Kodwa-ke, ngoba okukhiphayo kwe-LED kuyi-monochromatic (umkhawulokudonsa omncane), ikhanda lesibani kufanele lihambisane ngokuphelele nekhemikhali likayinki wakho. Uma isibani sakho sikhipha ku-395nm kepha inkinobho yakho yakhelwe i-365nm, ukwelashwa kuzohluleka, kungakhathalekile ukuthi uphonsa amandla angakanani.

Yibuphi ubude be-wavelength okufanele ngibukhethe ukwakheka kwami kweyinki?

Ngezinhlelo zokusebenza eziningi ezijwayelekile zokuphulukisa inkinobho ye-UV, i-395nm iyindinganiso yomkhakha ngenxa yamakhono ayo okungena okujulile nokuqina okuphezulu. Kodwa-ke, i-385nm ne-365nm zibalulekile ezinhlelweni ezithile njengokuphulukisa ubuso (ukunciphisa i-tackiness) noma amajazi acacile. Njalo xhumana neshidi ledatha yezobuchwepheshe yomkhiqizi wakho we-inki (TDS) ngaphambi kokukhetha ubude be-wavelength.

Ukuqonda i-Nanometer Spectrum

Ubude be-wavelength "umbala" wokukhanya kwe-UV, kulinganiswa ngama-nanometer (nm). Emhlabeni we-UV LED wokuphulukisa inkinobho ye-UV, ngokuyinhloko sibhekana namabhendi amathathu athile.

• I-395nm (I-Workhorse): Lona ubude obuvame kakhulu be-inkjet yedijithali, isikrini, nokuphrinta kwe-offset. Inikeza ukwelashwa okuhle kakhulu (ukuphulukisa ungqimba lwe-inki yonke indlela eya ku-substrate) ngoba ama-wavelengths amade angena ngokujulile.
• I-385nm (The Middle Ground): Lokhu kunikeza ibhalansi phakathi kokwelashwa komhlaba nokwelashwa. Imvamisa isetshenziswa emhlanganweni okhethekile we-elekthronikhi noma ukuphrinta kwezimonyo ezisezingeni eliphakeme lapho ukuqedwa komhlaba kubalulekile.
• I-365nm (I-Surface Specialist): Ama-wavelengths amafushane alwela ukungena ezingqimba ezijulile, ezinemibala, kepha ahlukile ekwelapheni indawo ephezulu kakhulu. Lokhu kubalulekile ekuqedeni "ukuvinjelwa kwe-oksijini," okushiya amaphrinta azizwa enamathela noma aqinile.

Ithiphu ye-Pro: Ngibonile izinhlelo ze-hybrid zisebenza izimangaliso. Lokhu kuhilela ukusebenzisa isibani esingu-395nm ekwelapheni okuyinhloko kanye nesibani esincane se-365nm "kicker" ekugcineni ukuvala indawo.

How do peak irradiance and energy density differ?

Ukukhanya okuphezulu (W / cm²) kulinganisa ukuqina kwamandla e-UV endaweni ethile, kuyilapho ukuminyana kwamandla (J / cm²) kulinganisa inani eliphelele lamandla alethwa ngokuhamba kwesikhathi. Ukuze uthole ukwelashwa okuphumelelayo, udinga ukukhanya okwanele ukungena ku-inki kanye nokuminyana kwamandla okwanele (umthamo) ukuqedela ukusabela kwamakhemikhali ngesivinini sakho sokukhiqiza.

The "Punch" vs. The "Soak"

Cabanga nge-Irradiance njenge "punch" kanye ne-Energy Density njenge "soak."

1. Ukukhanya: Lokhu kunqunywa ngamandla kagesi we-LED array kanye nokusebenza kahle kwe-optical yewindi lekhanda lesibani. Ukukhanya okuphezulu kuyadingeka ukushaya ama-inki amakhulu, anemibala eminingi (emhlophe noma emnyama).
2. Ukuminyana kwamandla: Lokhu kuthonywa ijubane lokuhambisa. Uma ugijima umshini wakho ngokushesha, inki ichitha isikhathi esincane ngaphansi kokukhanya, ukunciphisa ukuminyana kwamandla.

OLUNYE

UDABA: Omunye umbhali weChiefs uke wangishayela ucingo ekhala ngokuthi uZuma Ukukhanya kwabo kwakuphakeme (16W / cm²), okwakufanele kube okwanele. Inkinga? Baphindwe kabili ijubane labo lomugqa. Umthamo wehle ngaphansi komkhawulo odingekayo we-polymerization. Besingadingi isibani esinamandla; Kwakudingeka sengeze ikhanda lesibani lesibili ochungechungeni ukwandisa isikhathi sokuhlala (futhi ngaleyo ndlela umthamo).

Uma ungaqiniseki ukuthi lawa mamethrikhi asebenzisana kanjani nokusetha kwakho okuthile, hlola umthombo wethu ku- UV LED Ink Curing Guide ukuze ujule nge-physics yokuphulukisa.

Kufanele ukhethe amakhanda ezilambu ezipholile emoyeni noma amanzi?

Khetha amakhanda amalambu apholile emoyeni kumaphrinta amancane, anejubane eliphansi lapho kulula nokugcinwa okuphansi kubekwa phambili. Khetha izinhlelo ezipholile ngamanzi zezicelo zamandla aphezulu, zezimboni, noma zefomethi ebanzi lapho kudingeka khona ukukhishwa okuphezulu okuphezulu kanye nezici zefomu elihlangene ukuze zilingane nokwakhiwa komshini okuqinile.

Air-Cooled Systems

• Izinzuzo: Azikho ama-chillers, azikho amapayipi, akukho ngozi yokufingqa noma ukuvuza. Kulula ukuyifaka.
• Ububi: Ngokomzimba mkhulu (udinga isikhala sabalandeli / ama-heatsinks), kungaba nomsindo, futhi kungasabalalisa uthuli endaweni yokuphrinta uma kungahlungwa kahle.

Izinhlelo Ezipholile Amanzi

• Izinzuzo: amaphrofayli ahlangene kakhulu, ukusebenza buthule ekhanda lokuphrinta, namakhono aphezulu wamandla. Ukuphathwa okushisayo okuzinzile kuqinisekisa ukuthi ama-LED ahlala isikhathi eside.
• Cons: Idinga iyunithi yangaphandle ye-chiller kanye namapayipi. Kufanele uqaphe amazinga okupholisa futhi uvimbele ukufingqa ezindaweni ezinomswakama.

Lapho uhlela umugqa wakho wokukhiqiza, indlela yokupholisa ivame ukunquma ukwakheka komzimba komshini. Ukuze uthole ukuhlukaniswa okuningiliziwe kwezidingo zokufakwa, buyekeza i- UV LED Curing System: Ukucatshangelwa Kokusetha.

Kungani i-Optical Uniformity ibalulekile kwikhwalithi yokuphrinta?

Ukufana kwe-optical kuqinisekisa ukuthi wonke amamilimitha obubanzi bokuphrinta athola inani elifanayo lamandla e-UV, ukuvimbela i-banding noma imiphetho engalapheki. Amakhanda ezibani asezingeni eliphakeme asebenzisa ama-optics akhethekile noma ama-reflectors ukusabalalisa ukukhanya ngokulinganayo, kanti amayunithi ashibhile avame ukuba "nezindawo ezishisayo" kanye "nezindawo ezifile" eziholela ekubambeleleni okungahambisani.

The "Stitching" Challenge

Ekuphrintiweni kwefomethi ebanzi, abakhiqizi bavame ukuthunga ama-LED amaningi ndawonye ukumboza ububanzi obugcwele. Uma ama-optics engakhululekile, uthola ukwehla kokuqina lapho ama-arrays ehlangana khona. Lokhu kuholela emigqeni ebonakalayo phansi kobude bokuphrinta lapho inki ingaphansi kokuphulukiswa.

Lapho uhlola ikhanda lesibani, cela idatha yephrofayili ye-irradiance. Ufuna iphrofayili ephezulu eyisicaba, hhayi ijika le-Gaussian (elimise okwebell). Iphrofayili ephezulu eyisicaba iqinisekisa ukuthi onqenqemeni lwefasitela lokwelapha lunamandla njengamaphakathi.

Ingabe indlela yokuphrinta ishintsha imfuneko yesibani?

Yebo, indlela yokuphrinta iyala ukucushwa kwesibani; I-Inkjet imvamisa idinga izibani "zokukhomba" ukuqandisa amachashazi ngaphambi kokwelashwa kokugcina, kuyilapho i-offset idinga imigoqo ephezulu yokuphulukiswa okujulile ngokushesha. Ijubane nobukhulu beyinki benqubo inquma ukuthi udinga umthamo ophakeme noma ukuqina okuphezulu.

Inkjet vs. Izidingo ze-Offset

• Ukuphrinta kwe-inkjet: I-inki ine-viscosity ephansi. Uma ungakwelapheki ngokushesha, amachashazi ayasakazeka (inzuzo yamachashazi), okwenza isithombe sifiphele. Imvamisa, amakhanda amancane, anamandla aphansi e-LED abekwe eduze kwamakhanda okuphrinta ukuze "akhombe" ichashazi endaweni, kulandelwe ibha yamandla aphezulu ekwelapheni kokugcina.
• Ukuphrinta kwe-offset: I-inki iqinile futhi ifana nokunamathisela. Inselelo lapha akuyona inzuzo yamachashazi, kepha ukungena kungqimba olukhulu ngesivinini se-breakneck. Lokhu kudinga ukukhanya okuphezulu kakhulu.

Uma usuka ezinqubweni zedijithali uye ezinqubweni ze-analog, izidingo zishintsha kakhulu. Kuyafaneleka ukufunda i-athikili yethu, Can UV LED Curing Be Used for Offset Printing?, Ukuqonda izidingo ezithile zamandla wemishini ye-offset.

Yimaphi amaphutha ajwayelekile ayenzeka lapho ukhetha amakhanda ezibani?

Amaphutha ajwayelekile kakhulu wokukhetha afaka ukungahambisani nama-wavelengths kumakhemikhali weyinki, ukubukela phansi izidingo zokupholisa, nokushaya indiva ibanga lokusebenza. La maphutha aholela ekuphrintiweni okunamathelayo, ukunamathela okungalungile, isikhathi sokuphila esifushane se-LED, futhi ekugcineni, imikhiqizo enqatshiwe kanye nesikhathi sokuphumula.

The Working Distance Trap

Ukuqina kokukhanya kulandela umthetho we-Inverse Square—ukuqina kwehla ngokushesha njengoba usuka emthonjeni.

• Ibanga le-1mm - 5mm: Indawo yokusebenza kahle yama-LED amaningi.
• Ibanga le-10mm +: Ukukhanya kungahle kwehle ngo-50% noma ngaphezulu ngokuya nge-optics.

Ngike ngathola uhlelo lapho ikhasimende lifaka khona ikhanda lesibani 20mm ngenhla kwe-substrate ukugwema ukuphahlazeka ngekhadibhodi elisontekile. I-inki ayizange iphulukise. Sizishintshe ekhanda lesibani eline-lens collimating (egxile ekukhanyeni njengogongolo lwe-laser) esikhundleni se-reflector ejwayelekile yezikhukhula. Lokhu kwabavumela ukuba balondoloze igebe ngaphandle kokulahlekelwa ukuqina.

Uma njengamanje ubhekene nezinkinga zekhwalithi, gijima ngokusebenzisa yethu UV LED Curing Troubleshooting for Inkjet umhlahlandlela ngaphambi kokuthenga hardware entsha.

Yiziphi izici ezingaxoxisana ohlelweni lwe-UV LED?

Uhlelo oluqinile lwe-UV LED kufanele lube nokulawula ukuqina okuguquguqukayo (ukufiphala), amandla okuvula / ukuvala okusheshayo, kanye nohlelo lokuqapha oluhlanganisiwe lokuvikelwa okushisayo. Lezi zici zivumela opharetha ukuthi bazivumelanise nama-substrates ahlukene nesivinini ngenkathi bevikela i-hardware ekuhlulekeni kokushisa ngokweqile.

Uhlu lokuhlola lokucacisa

Uma uhlala phansi nomthengisi noma ubuka ishidi le-spec, bheka lezi zimfanelo ezithile:

1. I-Field Replaceable Windows: Inkungu ye-inki izongena engilazini. Udinga ukwazi ukushintsha iwindi le-quartz ngaphandle kokuhlukanisa iyunithi.
Indlela ephelele ye-athikili: Isimo Sezulu Senethiwekhi " Isimo Sezulu Senethiwekhi "
2. Ungayivala yini izingxenye zezibani? Uma uphrinta isithombe esingu-10-intshi esibani esingu-20-intshi, ukonga amandla nesikhathi sokuphila ngokucisha ama-LED angasetshenziswanga.
3. Ukuxhumeka kwe-Interlock: Isibani kufanele sikhulume nesishicileli. Uma i-conveyor iyeka, isibani kufanele sinqanyulwe ngokushesha ukuvimbela ukushisa i-substrate.

Ukuze uthole uhlu oluphelele lwamamethrikhi wokuhlola abathengisi, sebenzisa i- UV LED Ink Curing System: Spec Checklist for Printing.

Feature	Standard Reflector	Lens / Focused	Water-Cooled	Air-Cooled
Best For	General Flatbed	High Stand-off distance	Industrial / High Power	Entry / Mid-Range
Ukuqina	okuphezulu (ibanga eliseduze)	Okusezingeni eliphakeme (ibanga elide)	Ukugcinwa	okuphezulu okulinganiselwe
	okuphansi

okuphansi okuphakathi okuphakathi

Isiphetho: Ukutshala imali kubuchwepheshe obufanele be-UV LED

Ukukhetha i-UV led efanele yokuphulukisa inkinobho ye-UV akuyona nje ukuthenga ukukhanya okukhanyayo kakhulu. Kumayelana nokufanisa i-physics ye-photon ne-chemistry ye-inki.

Udinga ukulinganisela ubude be-wavelength (395nm vs. 365nm), ukuphatha ukuhwebelana phakathi kokukhanya nokuminyana kwamandla, bese ukhetha isici sefomu elifanelana nomshini wakho. Ikhanda lesibani elifanele likhulisa ijubane lokukhiqiza, linciphisa i-scrap, futhi linciphise izindleko zamandla. Into engalungile - isisindo esibizayo sephepha.

Zinike isikhathi sokuhlola. Cela iyunithi yedemo. Sebenzisa inki yakho ethile ku-substrate yakho ethile. Uma uqinisekisa inqubo ngaphambi kokusayina isheke, uqinisekisa imbuyiselo ekutshalweni kwezimali okukhokhela iminyaka.