| 摘要 |
PURPOSE: To provide a relatively low affinity coating blanket rather than a high affinity to a liquid-like coating material or ink like a transfer layer of a conventional nitrile rubber-photosensitive resin blanket. CONSTITUTION: The low affinity material, for example, a fluorinated polymer or a silicone elastomer, resists wetting by the liquid media, and has a tendency to form a non-spreading bead or droplet of the liquid coating material on the transfer media surface. The low affinity surface provides smooth and quick release of the substrate from a nip between the coating blanket cylinder 22 and an impression cylinder 20. The low affinity transfer surface further inhibits the accumulation of ink and/or liquid coating material, thereby preventing split images, ghost images, offset images and back-trapping defects. |
