| 摘要 |
PROBLEM TO BE SOLVED: To provide a sleeve roll for a printing plate cylinder easily subjected to surface treatment such as plating treatment or the like, capable of being easily mounted on a mandrel roll by utilizing compressed air, light in weight, hard to damage and hard to generate the change in diameter caused by a change in temperature. SOLUTION: The sleeve roll, which consists of a plastic inner roll part 10, a metal outer roll part 20 and doughnut-shaped spacers 30 becoming side panels, is mounted on a mandrel (corresponding to a core body) provided with an air introducing port and an air blowoff port by utilizing compressed air. |
