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US 10,119,041 B2Granted
UV curable inkjet inks
AssigneeAgfa NV
InventorsJohan Loccufier, Luc Decoster
Life of this patent
Estimating the term…
Abstract
An inkjet printing method includes the steps of: a) jetting on a substrate one or more aqueous UV curable inkjet inks including at least one photoinitiator and capsules composed of a cross-linked polymeric shell surrounding a core, with the core containing UV curable compounds; and b) applying UV radiation to the one or more aqueous UV curable inkjet inks jetted on the substrate.
Claims13
An inkjet printing method comprising the steps of:
- jetting one or more aqueous UV curable inkjet inks on a substrate, each of the one or more aqueous UV curable inkjet inks including at least one photoinitiator and capsules including a cross-linked polymeric shell surrounding a core that includes a UV curable compound;
- applying UV radiation to the one or more aqueous UV curable inkjet inks jetted on the substrate;
- and
- exposing the one or more aqueous UV curable inkjet inks to infrared radiation between the step of jetting and the step of applying UV radiation;
- wherein the UV radiation is emitted by UV LEDs;
- and
- the infrared radiation is emitted by a Near InfraRed radiation source having an emission maximum between (0.8 μm and 1.5 μm or a Carbon InfraRed radiation source having an emission maximum between 2.0 μm and 3.5 μm.
4 more elements
An inkjet printing device comprising:
- an inkjet print head;
- an infrared radiation source located downstream of the inkjet print head;
- and
- a UV curing device located downstream of the infrared radiation source;
- wherein the infrared radiation source exposes one or more aqueous UV curable inkjet inks jetted by the inkjet print head to infrared radiation;
- the UV curing device includes UV LEDs that emit UV radiation having a wavelength larger than 360 nm;
- and
- the infrared radiation is emitted by a Near infraRed radiation source having an emission maximum between 0.8 μm and 1.5 μm or a Carbon infraRed radiation source having an emission maximum between 2.0 μm and 3.5 μm.
5 more elements
Dependencies are inferred from the claim text.