Scott I agree with that idea for a possible approach, may I please ask, have you tried it and had success? I imagine there may be a little compensation of brightness needed (as with printing images to go in frames under glass) as the glass inevitable absorbs some luminance. I guess there is also a possibility of the inks behaving differently when going down onto white paint rather than straight onto glass. Best Regards, Neil Barstow Imaging & Colour Management Specialist http://www.colourmanagement.net On Fri, Aug 19, 2016 at 9:42 PM, Scott Martin <scott@on-sight.com> wrote:
One approach is the print on the front side of the plexi (which is really just printing white first then colors) for reflective calibration and profiling purposes and then print on the backside (colors then white). Some would go so far as to implement a minor lightening curve and others wouldn’t. Have you tried this?
Scott Martin www.on-sight.com
On Aug 19, 2016, at 1:43 PM, Randy Norian <rg500delta@mac.com> wrote:
Good afternoon!
It’s quite likely that this has been covered before, however, I have to ask.
We are attempting to print high quality images on the back face of clear plexiglass, with a white ink layer behind the image.
The print engine in question is a Rastek H625 (by EFI) UV-cured inkjet.
While I can color manage paper prints with this device, the backside-plexiglass printing has me stymied. The images are extremely bright and overly-contrasty, to the point of being unacceptable, especially as companion pieces to other latex work we’re doing.
I thought I’d just characterize the output on the plexiglass, however my ES-2000 won’t read the swatches through the plexiglass, for whatever reason — it simply faults out. I’m using EFI color profiler suite 4.6.
Have any of you faced the same issue? Any advice on how to go about color managing this sort of printing?
I know I have to figure out how to read these swatches, but beyond that, are there any caveats for working with "back side of glass” printing?
Many thanks-
Randy Norian