| 摘要 |
PROBLEM TO BE SOLVED: To provide a printing mandrel, which gives no damage to the inner surface of a tubular body such as an aluminum can, wears little by repeated use, can be easily manufactured at a low cost and is reusable. SOLUTION: This printing mandrel is fittingly inserted in the tubular body for holding the tubular body to apply a curved surface printing onto the tubular body. This printing mandrel comprises a metal core material and a coating layer made of a high wear-resistant resin provided on the surface of the core material. COPYRIGHT: (C)2004,JPO
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