As we know, polyester garments are dyed with sublimation inks for brilliant colors. But the molecule of sublimation inks are not honest even if are dyed by polyester fibre, they can migrate anytime anywhere, if you will print the image onto Sublimated products, the molecule of sublimation inks can penetrate the image layer, The image becomes dirty after a while. This is especially the case with light colored prints on dark garments. Eco-solvent Subi-Stop Printable PU Flex with special coating layer which can prevent the migration of sublimation ink.