Blurry or ghosted designs on sublimation wine glasses typically occur when the transfer paper shifts during the heating cycle or is removed incorrectly while the substrate is still hot, causing the gassed-out ink to deposit outside the intended design area. To prevent this ghosting effect, ensure your sublimation transfer is firmly secured to the poly-coated glass using high-quality heat-resistant tape and remove the paper in one swift, vertical motion immediately after pressing. Additionally, verify that your time, temperature, and pressure settings are calibrated correctly, as over-processing can cause the ink to gas out beyond the design edges and compromise image clarity. Maintaining a tight, secure wrap and consistent thermal pressure is essential for achieving the sharp details and professional-grade finish expected from Joto Imaging Supplies blanks.