Patent ID: 8500330
Filing Date: 2013-08-06
Classification: B29C,B29L,B65D

Abstract:
1. A packaging bag comprising: a bag body having a heat-welded portion located at an edge of the bag body; a port through which contents are taken out or put into the bag body; and thermoplastic resin-made reinforcing members provided on the edge of the bag body to reinforce the bag body, wherein each reinforcing member has a longitudinal end, and the longitudinal ends of the reinforcing members face each other with the port placed therebetween, wherein each reinforcing member has an approximately U-shaped cross section and is integrally formed by injection molding, wherein the reinforcing members enclose the edge of the bag body, the heat-welded portion has an inner edge uncovered by the reinforcing members, and the heat-welded portion has ends adjacent to the port and uncovered by the reinforcing members, and wherein a window is provided in the longitudinal end of each reinforcing member.