| 摘要 |
PROBLEM TO BE SOLVED: To provide a coreless roll-like flexible synthetic resin film which dispenses with a core for keeping a cylindrical form to reduce a cost and prevent a portion to be wasted from occurring, is not necessary to put in a storage box when starting to use the film, and enables a film end to be drawn out from any part. SOLUTION: A part to start rolling is not wound around the core but adhered over appropriate layers, thereby forming a rigid cylindrical part 2. A subsequent part is wound around the cylindrical part 2 without adhering, to successively form rolled layers 3 of the flexible film. COPYRIGHT: (C)2004,JPO
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