"benoit.lantoine" <benoit.lantoine@...> wrote:
> I've already tried the following on my epson 1400 :
>
> BO using MK Eboni on various non OBA papers
> EB6 on Epson Hot Press Natural
>
> I would like to get cooler prints.
That issue was the purpose of my experimenting with the various cooler inks in the "Eboni-4 Plus" write-up.
See http://www.paulroark.com/BW-Info/Eboni-4-Plus.pdf
The easiest and cheapest of these to implement is to use the MIS UT14 C and LC. The most lightfast would be to use the HP Z3100 PK and Gray (LK) (OEM or user mixed).
UT14 does not use dyes. The coolness is from MIS color pigments. For all by museum work, the UT14 is stable enough.
> - Eboni based inkset containing dyes to get cooler prints (EB4+, UT14, EB1400) on non OBA paper
The only dye inks I use and recommend are the Epson-Noritsu (Claria) dyes. Some http://www.aardenburg-imaging.com/ fade testing suggests that these dyes might actually be more stable than at least some third party color pigments. I take no position on this. Mixing the dyes to get a lighter gray ink may be more than you want to take on now. Using just the K dye may result in a print that is too green. So, my initial reaction would be to avoid the dyes at this point.
The OBAs in papers are dyes and are known to "fade," causing the paper tone to drift to that of the natural, underlying paper. How bad is this? It may depend, in part, on how warm the underlying paper is. In terms of the total image tone stability, it's not good, but, frankly, I look at where the final image tone will be and what the tonal drift path is. We're not talking about a drift into the green zone. There is no image fade, and the final image -- possible years from now -- may be no different than if you'd used non-OBA paper to start with. My main concern with using brightened paper for images that are sold is that years from now if the print is taken out of the matte, there will be a difference between the image tone where the matte covered the paper and where it didn't. (If/when I can put about 1% yellow on the border to control that and not over-mat image, I may have almost no concerns with using good brightened paper.)
I'd recommend, bottom line, that you try the Eb4+ approach with UT14 cool C and LC. It's easy and cheap to buy a couple carts to test and then bulk ink if you like it.
Paul
www.PaulRoark.com