| 摘要 |
A header (28) having a first waterproof polymeric coating (30) over its inner face, the coating being a thermoplastic which is heat softenable at a predetermined elevated temperature for bonding to the crimped end (14 min ) of a wrapper (14) around the paper roll (10), and a second coating (28a) on the first coating on the inner face of the header, the second coating being in the central zone of the inner face and being non-softenable at the noted predetermined elevated temperature, so that the header sealingly bonds to the wrapper but not to the end of the roll itself. <IMAGE>
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