IR printing 1

[manyquestions]

Im in the printing industry and I am working on a project for a client, we are currently using IR ink for printing... What do I need to see the images that I am printing.

 

[IRstuff]

Define what you mean by "IR."

TTFN

 

[manyquestions]

We are currently using:

IRDC2 - IR Fluorescent Powder

IRDC2 is highly fluorescent at both 880nm and 1050nm when stimulated with a 450nm and 630nm light source. At 20nm excitation wavelengths variance, emission will be off 50%. Emission wavelengths are very specific at +/- 5nm.

An infrared viewing device or detector is required to see the IR fluorescence of the IRDC2. Our modified IR enabled cameras can see the IR fluorescence.

Properties
Excitation (absorption) frequencies: 450nm and 630nm
Emission (fluorescence) frequencies: 880nm and 1050nm
Average Particle Size: 5 Microns
Solubility: None
Type: Proprietary inorganic
Blue Wool: 8 or higher
Long Term Stability: Very high
Visible Appearance: Pale green

and IRUCG, IRUCB, IRUCR Up-Conversion Phosphors

 

[cev]

Ok, 880 nm and 1050 are "near-infrared," which is somewhat outside of the domain of this forum.

It sounds to me like you already have what is takes to view your images, that is, your "modified IR enabled cameras." What capability do you need that you don't already have?

CV

 

[IRstuff]

Do you need to see both?

880 nm is well within the bandpass of just about any monochrome camera.

1050 nm should likewise be visible provided the ambient background is dark enough. A Schott glass filter with a high enough cut-on over the camera will block out the source illumination that should allow you to see the fluorescence.

TTFN

 

[GeneAdcock]

Manyquestions

I have an application for overprinting 3M reflective material with an IR bandpass filter (850-880nm) for use on the battlefield. Specifically, the end item will be illuminated with an IR Laser and the "glint" will viewed with night vision (image intensification) goggles. Can you recommend a print ink that can be used as an overprint for the 3M reflecive material?

GeneAdcock