Patent ID: 8282539
Filing Date: 2012-10-09
Classification: B32B,B65D,Y10T

Abstract:
1. A method of manufacturing a bag, the method comprising: attaching a polyamide film to a first side of a paper layer so that the polyamide film and the paper layer are abuttingly joined to each other and so as to form a barrier relative to the paper that is capable of preventing the passage of grease and solvents therethrough; forming the polyamide film and the paper layer into a tube body having a first end, a second end, a front wall, and a back wall, wherein the polyamide film is exterior to the paper layer; introducing a stitching element into openings in the front wall and the back wall of the tube body to thereby form a substantially grease-impermeable seal at the first end of the tube body; and forming substantially grease-impermeable seals between the stitching element and the openings in the front wall and the back wall of the tube body.