Yimaphi ama-wavelength angcono kakhulu ekwelapheni inki ye-UV? (365nm vs 395nm)

Ubude obuhle kakhulu bokwelapha inkinobho ye-UV ngokuvamile bungu-395nm ngezinhlelo zokusebenza eziningi zokuphrinta zedijithali nesikrini. Le wavelength ingena kuma-inks anemibala eminingi futhi emhlophe (evame ukuqukethe i-titanium dioxide) kangcono kunama-wavelengths amafushane. Kodwa-ke, ukunamathela okucacile, ukumboza, kanye nomhlangano wedivayisi yezokwelapha, i-365nm ivame ukukhethwa ngamandla ayo aphezulu nokuntuleka kokukhanya okubonakalayo.

Ukukhetha i-wavelength engalungile kuholela kuyinki engalapheki, ukunamathela okungalungile, nezindawo ze-tacky. Kulesi siqondiso, sizomboza:

Umehluko phakathi kwama-LED angama-365nm, 385nm, no-395nm.
Kungani inki emhlophe ivame ukwehluleka ukwelapha ngezibani ezijwayelekile?
Ungasifaka kanjani isibani sakho ne-photoinitiator ye-inki yakho?
Ukuxazulula izinkinga zokuphrinta ezinamathelayo noma "ezimanzi".
Ungalukhetha kanjani uhlelo olufanele lwe-UVET lomugqa wakho wokukhiqiza?

Iyiphi i-wavelength oyidingayo?

Uma ushesha, sebenzisa leli thebula lokubhekisela ukufanisa uhlelo lwakho lokusebenza kubude obufanele.

Ukuphrinta

Wavelength	Best Application	Key	Feature Pros &
Cons 365nm	Clear Adhesives, NDT, Electronics	High Energy Surface Cure	Pro: Fast surface cure. Con: Ivinjiwe ngama-pigments.
I-385nm	General Assembly, i-Varnishes	Balanced Performance	Pro: Ukuxuba okuhle kobuso nokujula. Con: Okungajwayelekile kangako.
kwedijithali kwe-395nm	, i-Screen Inks	Deep	Penetration Pro: Ukwelapha ngombala / okumhlophe. Con: Ukwelashwa okuhamba kancane komhlaba.
Ukuphrinta kwe-3D kwe-405nm	, ukumbozwa okuqinile	I-Deepest Cure	Pro: Ukujula okuphezulu. Con: Ukukhanya okuphezulu okubonakalayo kwe-violet.

I-Physics: Indlela I-Wavelength Ithinta Ngayo Ukuphulukisa

Ukuze uqonde ukuthi kungani isibani esisodwa sisebenza kanti esinye sehluleka, kufanele uqonde ukumuncwa kwe-spectral.

Ukuphulukiswa kwe-UV akukona ukushisa, ukusabela kwe-photochemical. I-inki iqukethe amakhemikhali abizwa ngokuthi ama-photoinitiators amunca amandla e-UV ukuze avuselele i-polymerization (ukuqina). I-photoinitiator ngayinye inebanga elithile "lokumuncwa okuphezulu".

Uma isibani sakho se-LED sikhipha ukukhanya ku-395nm, kepha i-photoinitiator ye-inki yakho ithatha kuphela amandla phakathi kuka-320nm no-370nm, inkinobho ngeke yelaphe, noma ngabe ukukhanya kukhanya kangakanani. Lo ngumqondo oyisisekelo ku- indlela ukuphulukiswa kwe-UV LED kusebenza kanjani ekunyatheliseni kwe-inkjet. Kufanele uhlanganise ukukhishwa kwe-spectral kwesibani ngejika lokumuncwa kweyinki.

Deep Dive: 365nm vs. 395nm for Inks

Yize kukhona okuhlukile, imboni ihlala kakhulu kuma-wavelengths athile wokwakhiwa kwamakhemikhali athile.

Kungani i-395nm "iyinkosi" yokuphrinta kwedijithali

Iningi lezicelo zokuphrinta i-inkjet nesikrini, i-395nm iyizinga. Lokhu kungenxa yokuthi ama-LED angama-395nm angabizi kakhulu futhi anikela ngemiphumela ephezulu ye-irradiance kunamanye ama-wavelengths.

Okubaluleke kakhulu, ama-wavelengths amade (njenge-395nm) angena ngokujulile ezintweni ezibonakalayo. Lapho uphrinta izingqimba ezijiyile noma imibala emnyama, udinga ukuthi ukukhanya kudlule ungqimba oluphezulu ukuphulukisa isisekelo sikayinki ngokumelene ne-substrate. Uma ufuna ama-specs wemishini, hlola umhlahlandlela wethu ku- best UV LED ukuphulukisa isibani sokuphrinta kwe-inkjet ukubona ukuthi i-395nm ihlanganisa kanjani emakhanda okuphrinta.

The "White Ink" Challenge (Titanium Dioxide)

Uyinki omhlophe kunzima ukwelapha. Lokhu kungenxa yokuthi i-pigment emhlophe imvamisa yenziwa nge-titanium dioxide (TiO2).

I-TiO2 yenzelwe ukuba ibe yi-opaque; ithatha futhi ivimbele ukukhanya kwe-UV. Isebenza ngokukhethekile ekuvimbeleni ama-wavelengths amafushane afana ne-365nm. Uma uzama ukwelapha inkinobho emhlophe ngesibani esingu-365nm, ama-microns aphezulu angase abe lukhuni, kepha ukukhanya kuzovinjelwa ukuthi kungafinyeleli phansi, okuholela ekuhlulekeni kokunamathela.

Isixazululo: Sebenzisa i-395nm noma i-405nm. Lawa ma-wavelengths amade angadlula isithiyo se-TiO2 ngempumelelo ukuphulukisa inki yonke indlela eya ku-substrate.

When to Use 365nm (Adhesives & Clear Coats)

Uma i-395nm inhle kangaka, kungani i-365nm ikhona?

I-365nm inikeza ama-photon anamandla aphezulu. Ngama-adhesives acacile, ukubopha kwe-optical, kanye nama-varnishes acacile lapho kungekho i-pigment evimbela ukukhanya, i-365nm iphakeme. Kubangela ukusabela ngokushesha futhi kuvame ukuhlinzeka ngesiphetho esinzima, esomile. Ukuze uthole ukubuka konke okubanzi kwezicelo ezingaphezu kokuphrinta nje, bheka yethu UV LED ukuphulukisa umhlahlandlela.

LED vs. Mercury Lamps: The Spectrum Gap

Abakhiqizi abaningi abashintsha kusuka kumalambu amadala e-mercury arc kuya ku-UV LED babhekana nezinkinga zokuphulukisa ngokushesha.

Izibani zeMercury: Khipha "i-broadband" UV. Bakhiqiza inhlanganisela ye-UV-A, UV-B, ne-UV-C. I-UV-C (igagasi elifushane) lihle kakhulu ukuvala ubuso nokuvimbela i-tackiness.
I-UV LED: Khipha i-UV "narrowband" (isb., Isiqongo esiqinile ku-395nm ncamashi ). Abanayo i-UV-C yemvelo enikezwa yizibani ze-mercury.

Uma usebenzisa inkinobho eyakhelwe izibani ze-mercury ngohlelo lwe-LED, kungenzeka ukuthi yehluleke. Kufanele uqinisekise ukuthi umphakeli wakho we-inki uhlele kabusha umkhiqizo ngokukhethekile nge- "LED Curing" (ukumuncwa kwe-narrowband).

Ukuxazulula inkinga: Kungani inki yami inamathela?

Isikhalazo esijwayelekile ekuphrintiweni kwe-UV ukuthi inki ibukeka yomile kepha izwa i-tacky ekuthinteni. Lokhu kuvame ukubangelwa ukuvinjelwa kwe-oksijini. I-oksijini emoyeni ixhumana nobuso beyinki futhi imise ukusabela kokuphulukisa.

Uma ubhekene nalesi simo, hlola lezi zici:

I-Wavelength Mismatch: Ingabe usebenzisa i-395nm ku-inki eyenzelwe i-365nm?
Ukwehla Kokuqina: Ingabe ilensi yesibani ingcolile, noma i-LED ihlaziyiwe?
Ukuchayeka Kwe-Oksijini: Ubude be-395nm buhle kakhulu ekwelapheni okujulile kepha buthakathaka ekuphulukisweni komhlaba. Ungadinga ukuqina okuphezulu (irradiance) ukuphoqa ubuso ukuthi buphulukise ngaphambi kokuthi umoya-mpilo uvimbe.

Sine-athikili ezinikezele yokuthi singayisebenzisa kanjani ukuvimbela ukugcwala kwe-UV inki ngokuphulukiswa okufanele kwe-LED okuchaza ukuthi ungaphatha kanjani ukukhanya kanye nesikhathi sokuhlala ukuxazulula le nkinga.

Amaphutha ajwayelekile okufanele uwagweme:

Ukucabanga ukuthi "ama-watts" alingana "nesivinini sokwelapha" (i-Wavelength ibaluleke kakhulu).
Ukunganaki ibanga phakathi kwesibani ne-substrate (ukuqina kwehla ngokuqondile ngebanga).
Ukusebenzisa ama-inki we-UV ajwayelekile ngaphandle kokuhlola i-MSDS ukuhambisana kwe-wavelength.

Ukukhetha uhlelo olufanele lwe-UVET

Ku-UVET (UVNDT), siyaqonda ukuthi ubude obulodwa abuhambisani nabo bonke. Ngokuvamile, imigqa yokukhiqiza idinga ukuguquguquka.

Spot Curing: Ilungele i-elekthronikhi encane noma ukubopha okuqondile kokunamathisela.
Ukuphulukiswa Kwezikhukhula: Kungcono kakhulu izindawo ezinkulu zokuphrinta noma izinhlelo zokuhambisa.
Izinketho ze-Multi-Wavelength: Ezinye izinhlelo ezithuthukile zikuvumela ukuthi ushintshe phakathi kwe-365nm ne-395nm ngokuya ngomsebenzi.

Njalo cela ukuhlaziywa kwe-spectral noma ukwelashwa kokuhlola ngoyinki wakho othize ngaphambi kokuzibophezela ohlelweni.

Imibuzo Evame Ukubuzwa (FAQ)

Iyini i-wavelength ejwayelekile yokuphulukisa i-UV?

Nge-inkjet yedijithali nokuphrinta kwesikrini, i-395nm iyindinganiso yomkhakha. Kokunamathisela kwesakhiwo kanye ne-NDT (Ukuhlolwa Okungabhubhisi), i-365nm iyindinganiso.

Ingabe i-395nm yelapha i-resin ye-365nm?

Ngokuvamile, cha. Ngenkathi kukhona i-crossover encane, isibani se-395nm ngeke sibangele kahle ama-photoinitiators aklanyelwe ngokuqinile uhla lwe-365nm, okuholela ekwelapheni okubuthakathaka noma "kwe-mushy".

Ungasebenzisa i-resin engu-405nm ngokukhanya okungu-395nm?

Yebo, lokhu kuvame ukusebenza. I-395nm ne-405nm zisondele ngokwanele ku-spectrum ukuthi ama-resin amaningi abhalwe omunye azophulukisa nomunye, yize izikhathi zokuphulukisa zingahluka kancane.

Kungani i-resin yami ye-UV inamathela ngemuva kokuphulukiswa?

Lokhu kungenzeka ngenxa yokuvinjelwa kwe-oksijini noma ukukhanya okunganele komhlaba. Ama-LED angama-395nm aphulukisa ukujula kahle kodwa kwesinye isikhathi alwela ungqimba oluphezulu kakhulu uma kuqhathaniswa nezibani ezibanzi ze-spectrum.

Ingabe i-365nm noma i-395nm ingcono ku-inki omhlophe?

I-395nm ingcono. Inkinobho emhlophe iqukethe i-titanium dioxide evimbela ukukhanya kwe-UV ngaphansi kwe-380nm. Isibani esingu-365nm sizovinjelwa yi-pigment, sishiye phansi kwesendlalelo sikayinki singalapheki.

Ingabe ama-LED e-UV akhipha ukushisa?

Ama-LED e-UV akhipha ukushisa okuncane kakhulu (i-infrared) maqondana ne-substrate kunezibani ze-mercury, okwenza kube kuphephile kumapulasitiki azwela ukushisa. Kodwa-ke, i-chip ye-LED ngokwayo ikhiqiza ukushisa futhi idinga ukupholisa uketshezi noma umoya.

Uyini umehluko phakathi kwe-385nm ne-395nm?

I-385nm iyisinqumo "se-hybrid". Inikeza ukuphulukiswa komhlaba okungcono kancane kune-395nm kodwa ukungena okungcono kune-365nm. Ivame ukusetshenziswa lapho i-395nm ishiya ubuso buqinile kakhulu kepha i-365nm ngeke iphuluke ngokujulile ngokwanele.

Ngingakwazi yini ukubheka izibani zokuphulukisa ze-UV?

Cha. Ungalokothi ubheke ngqo ama-LED e-UV. Njalo gqoka izibuko zokuphepha ezilinganiselwe ubude obuthile (isb., OD4 + ku-365-405nm) ukuvimbela ukulimala kwamehlo.

Isiphetho

I-wavelength "engcono kakhulu" incike ngokuphelele kumakhemikhali akho. Ngezicelo eziningi zokuphrinta, namathela ku-395nm ukuqinisekisa ukwelashwa okujulile ngokusebenzisa ama-pigment nama-inks amhlophe. Ngama-adhesives acacile, khetha i-365nm yokubopha okusheshayo, okunamandla amakhulu.

Ungaqageli ngekhwalithi yakho yokukhiqiza. Uma ungaqiniseki ukuthi yisiphi isibani esifanelana nenqubo yakho, xhumana nonjiniyela be-UVET namuhla ukuze uthole ukubonisana ngokufanisa uhlelo olufanele lwe-LED nokwakhiwa kwakho kweyinki ethile.