Yes I have done that platinum over ink jet color and it’s really cool. It’s the platinum in the emulsion that’s give you the max black. If you do a search on google you will find the step by step method for it.
http://picturesbyhand.blogspot.com/2017/05/process-obsession.htmlI have printed on the Arches printmaking papers with different printers, especially with the HP Z 3200 , which does a good job of making linearizations and icc profiles on uncoated media like Arches, uncoated Kozo and uncoated hand made hemp papers. The important issue is ink limits. If you lay down too much ink your dmax decreases . You need a custom linearization, which means you need a spectrometer like an xrite i1 to read the patches.
The newer Epson and Canon printers have much improved MK density over the previous models. Which is where HP Z Vivera inks were 12 years ago. Right now I believe Cones Piezography reformulated Carbon MK has the best dmax out there. You can buy a refillable cart with the programmable chip to put it in the printer. These inks are totally compatible with all Epson inksets. I plan to put it in my Epson 7890 after seeing it in my 3880.
You are never going to have as high a dmax on uncoated papers as ones with a good inkjet receptor coating, but with the best MK blacks out there and careful linearization you can make very nice work, and it will last longer than papers with the standard coatings because these beautiful inkjet coatings also attract contaminants from the environment than can cause premature staining. But be careful, many uncoated printmaking papers contain optical brightners that greatly reduce the longevity. Use natural arches or fabriano.
The other and probably most important issue with printing on uncoated papers like Arches is ink dot spread. The ink bleed reduces resolution . It is what it is. Some work requires the sharpest results possible, and other work might even look better on uncoated papers. I personally love the unique results they can give you. However, if your ink limits are done properly with the darkest black ink, it can go a long way to giving you a photographic quality result.
John
David,
I am using the ABW mode. For most papers (including Arches HP) I use the media type "watercolor paper-radiant white" and the "darker" setting in the ABW settings dialog.
I also add just a little bit of toning (H=V=6) for many not really bright white papers. The neutral setting is, to my eye, just a bit cool when printed on a slightly warm paper.
As you say, it will probably take a bit of experimentation, but that just adds to the fun!
--- Frank
