How should you know about sublimation Inkjet textile printer?
The procedure of transfering it from the paper to the final media (polyester) uses a calender or a press, the aim is to bring the average polyester at a temperature where the fiber is "soak", becomes soft to allow the ink (transformed into gas) to penetrate through, thanks to the pressure of the press inside the polyester fiber.
When the fiber cool down it incorporates within the pigment of dye.
In practice, instead of simply coloring the surface of polyester fiber (how could be using solvent or UV inks) it get the color inside the media.
The process requires a high chemical affinity between dye and polyester fiber and vice versa because otherwise there would be a lack of penetration, this explains why you can't use sublimation inks for printing on other textile fibers, like cotton wool or silk.