I printed something on HP Collector Satin Canvas (from the samples that came with the printer)3 weeks ago, and it did not dried properly. The color it can be very easy scratched with the finger. I printed on dye ink on canvas with a HP designjet 2500PS and the color is very stable even after an our after the printing.
All pigmented inks dried so slow or what?
Many of the coated canvas are delicate. Normally it's not the inks, but the coating itself that is easily damaged.
I think most coat the canvas after allowing enough time for outgassing, which provides it with some added protection.