发明名称 Easy Open Apparatus and Method for Multi-Ply Bags
摘要 An easy open apparatus for multi-wall bags and a method for making such bags are disclosed. The bag has a dosed end and an open end and the rear panel is stepped relative to the upper edge of the front panel. A tear-tape strip is adhered to an inner surface of a flap formed in the outer layer of the front panel and extends partly across the panel with ends of the tear-tape exposed. To open the bag, the user grasps one exposed end of the tear-tape and pulls it outwardly away from the bag, thereby tearing the outer paper layer across the flap to form a “pocket” or “handle” that the user may grasp to tear the bag open.
申请公布号 US2015367983(A1) 申请公布日期 2015.12.24
申请号 US201514838615 申请日期 2015.08.28
申请人 Standard Multiwall Bag Manufacturing Co. 发明人 Pang Yuming;Lin Paul
分类号 B65D17/00;B65D33/06;B65D30/18;B65D30/08;B65D33/18 主分类号 B65D17/00
代理机构 代理人
主权项 1. A method of forming a multi-wall bag having an opener, the bag defined by an outer layer and an adjacent layer and the bag having a closed bottom end, an open top end, a front panel and opposed rear panel, the bag defining a bag axis extending from the closed end to the open end, comprising the steps of: a) forming a bag having a front panel and opposed rear panel; b) cutting a pair of opposed and spaced apart slits in the outer layer of the front panel to define flap in the front panel, said opposed and spaced apart slits extending along the bag axis, and said flap having opposed first and second side edges defined by said slits and said flap having an inner-facing surface; c) adhering a strip of tape having opposite ends to the inner-facing surface of the flap, so that said tape extends completely across the flap in the direction transverse to the bag axis such that at least one of the opposite ends of said tape extends beyond one of the first and second opposed side edges of said flap; d) adhering the inner-facing surface of said flap to the adjacent layer such that said tape is between said flap and said adjacent layer with said at least one opposite end of said tape exposed.
地址 Beaverton OR US