| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic zipper with a slider and a bag with the zipper, for which a method to prevent formation of a new opening at the sealed end of a sealing zipper is employed. SOLUTION: The sealing zipper CH1 and a second closing portion CH2 are formed on the surface of a plastic film F. The slider S comprises a connection slot S4 and a lid S2 for the opening of the slot. In carrying out opening/closing operations using the slider, a wedge-shaped opening plate S1 is inserted into a cylindrical space FP between the engaged sealing zipper and the closed second closing portion, opening the sealing zipper first while the second closing portion is kept closed by keeping its engagement with the lid, then opening the second closing portion. A slit SL is formed to cut the second closing portion, or ribs and an opening side flange FL of the sealing zipper. COPYRIGHT: (C)2004,JPO&NCIPI
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