发明名称 PROGRESSIVELY PERFORATED TAPE ROLL
摘要 A tape (12) includes a backing layer (22) and an adhesive layer (24) formed on the backing layer. A plurality of lines of perforations (32) extend across the tape to separate the tape (12) into sheets. The sheets have progressively increasing lengths such that, when the sheets are wound into a roll (10), each sheet is longer than the sheet underneath it. When in a roll, the outermost sheet covers all of the lines of perforations to reduce instances of the tape tearing in a downweb direction.
申请公布号 WO9837160(A1) 申请公布日期 1998.08.27
申请号 WO1997US09946 申请日期 1997.06.09
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 WOOD, THOMAS, L.
分类号 C09J7/02;A47L25/00;B65H18/28;(IPC1-7):C09J7/02 主分类号 C09J7/02
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