Homebrew PCBs

Group,
I gave a presentation to a group on toner transfer over the weekend. 
One of the guys has a high-end Epson inkjet printer that uses pigment
instead of dye; it's the type used for very long term archive images,
and does gigle printing as well.  There is a straight feed-through on
his printer for up to 1/16" inch media.

The question is, will this pigment-based inkjet ink stand up to
etchant if the image is printed directly on the copper?

Regards,
Ted