Process and device for curing U/V printing inks
AssigneeMetronic Geratebau GmbH & Co.
InventorPeter Schmitt
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Abstract
The invention concerns a process and a device for curing a UV curing printing ink (14) on a printed material (9), wherein the printing ink (14) is irradiated with UV light from a UV radiation source (8). A low pressure gas discharge lamp (7) is proposed as UV radiation source (8). The device in accordance with the invention is characterized in that it comprises a stationary reflector (5) having, in particular, a special reflecting layer with diffuse reflecting material based on silicone rubber having diffuse reflecting particle imbedded therein.
Claims33
A process for curing a UV curing printing ink applied on a printed material, comprising the steps of:
- irradiating a printing ink with UV light from a UV radiation source by using a low pressure gas discharge lamp having a spectral radiation flux integrated over a UV-B region of a UV spectrum of more than 50% of a UV radiation flux, and an integrated UV radiation intensity is between 1 and 100 mW/cm2.
A device for curing a UV curable printing ink on a printed material, comprising:
- a UV radiation source consisting essentially of at least one low pressure gas discharge lamp having a spectral radiation flux integrated over a UV-B region of a UV spectrum of more than 50% of a UV radiation flux, and an integrated UV radiation intensity is between 1 and 100 mW/cm2.
Dependencies are inferred from the claim text.