| 摘要 |
PURPOSE: To simplify the constitution of a resin sheet (or laminated sheet) for use in a body of a laminated tube container and to ensure a joint seal having proper strength, without producing a step, when end surfaces of opposite ends of the resin sheet (or laminated sheet) are brought into abutting engagement with each other, heated and welded. CONSTITUTION: Vertical end surfaces formed respectively on the opposed ends of a generally rectangular, thermal bonding resin sheet S principally comprised of one or more polyethylene sheets and having a thickness of 200μm or more, or inclined end surfaces 1, 2 formed on the opposed ends thereof are brought into abutting engagement on into lapped engagement, heated, and welded to effect a joint seal of a cylindrical body A.
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