Multiwall paper bag with ripcord

Claim 1

A multiwall paper bag formed from a multiply tube in which each ply has a longitudinal ply seam formed by lapping margins of the ply adhered together throughout the length of the tube, said tube being closed at one end, and a ripcord extending lengthwise of the tube from one end thereof to the other between the lapped margins of the inner ply of the bag, said cord having its ends adhered to the inner ply and being free of securement to the inner ply throughout at least a major portion of its length between its said adhered ends, a portion of all the plies at one end of the tube including the respective end portion of the lapped margins of the inner ply between which the respective end of the ripcord is adhered being adapted to be grasped and pulled for pulling the ripcord to tear a slit in all the plies extending lengthwise of the bag, the margins of the inner ply in the longitudinal seam of the inner ply being adhered together by a stripe of adhesive narrower than the width of the overlap of said margins and offset from the edge of the inside one of said lapped margins, the ripcord extending along a line between the stripe of adhesive and said edge, the ends of the ripcord being adhered to the inner ply by spots of adhesive between said margins at the ends of the tube and the ripcord being free of the inner ply between said spots, the longitudinal seam of the inner ply and the ripcord extending lengthwise of one wall of the bag, the tube being closed at its said one end by a pasted closure comprising end flaps, a first side flap And a second side flap folded over on the first side flap, said second flap being constituted by part of said one wall, and said second flap being formed to provide a tab adapted to be grasped to pull the ripcord.