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Explained for Both UV Curing/LEDUV Curing and Solvent Based Applications UV curing, ink makeup, and curing options Solvent drying /curing, make-up, and options
ExplainedforBothUVCuring/LEDUVCuringandSolventBasedApplications
UVcuring,inkmakeup,andcuringoptionsSolventdrying/curing,make-up,andoptions
UV/UV-LED
UV&UV-LEDCuringInks
100%Ink
Resins/Oligomers
Monomers
Pigment
Additives
Photo-initiator
UV&UV-LED
CurableScreenInk
InkCuringVariables• InkDepositThickness• InkColor• Substrateorbackgroundcolor• ThroughCure&SurfaceCure
• Inkshaveaformulationbalancetocoverasmuchofthemarketaspossiblewithin‘normal’tolerances
ELECTROMAGNETICSPECTRUM
Curing/Cross-linking
Pigment InitiatorOligomer/Monomer/Additives
Wavelengths– Outputvs.RadiometerSensitivity
UVEnergy• UVC 200- 280nm• UVB 280- 315nm• UVA 315- 400nm• UVV4 00- 700nm
EITPowermap Radiometer
• UVC 250- 260nm• UVB 280- 320nm• UVA 320- 390nm• UVV 395- 445nm
TopCureUnderCureNormal/ThroughCure
Substrate
C B A VA2
BREAKINGDOWNLAMPSIe.10”Bulb,300w/in(3,000wattstotal)
w/cm^2
Nanometers
WHATDOESALEDWAVELOOKLIKEIe.6-8W/CM^2@395NM
Nanometers
HOWLOWCANYOUGO310NM- .016(NOTGREAT!)
ApplyingConceptstoRealLife
HowEfficientareLEDsystems?1.(2)30”Lamps@157w/cm^2/FullSpectrum2.(1)30”VegaLamp@8w/cm^2/395NM
Solvent-BasedInks
BasicChemistry• SOLVENTBASEDINKS– TraditionalProducts– Resin/Solvent/Pigments/Additives/Opacity/Drying
• WATERBASEDINKS– ShortPopularity88-94duetoUVScare– Resin/Solvent/Water/Pigments/Additives
Pigment ResinAdditivesSolvent
Drying
Crosslinking:temperature,time
CrossLinkPigment ResinAdditives
AirsurroundTemperatureTimeAdditives
TemperatureTimeAdditives
DryerTypesDefined
HowEachTypeCuresInk
CuringDefinedaDifferentWayLifeAfterWillSmith!
IREfficiencywhenControlled!1.FIREFLY2.CONVECTIONAIR(ELECTRIC)3.INLINECONDUCTIVESILVERPROCESS
RealWorld
ConductiveInks
Questions!SteveHarpoldBrownManufacturingElPresidenteBooth:1845Email:[email protected]
LauraMaybaumNazdarInkTechnologiesPMDirectorBooth:1545Email:[email protected]
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