An update on our Epson OEM inks and Image Armor ULTRA pretreatment print on a Black 100% Polyester Sport-Tek ST340 shirt: 10 washes in and still absolutely no degradation in the image. It looks incredible with the white ink still extremely white and the reds still popping. Again, this was printed on the Epson F2100 with OEM inks. We just used Image Armor ULTRA and pretreated like normal, printing like normal.
So, if anyone tells you it is not possible… I think this disproves that. See our original article here: http://imagearmorpt.com/printing-black-100-polyester-with-the-epson-f2100-and-oem-ink/