Abstract: A first embodiment of the packing film is a four-layered laminate film in which the following films are laminated in that order: a first oriented plastic film formed as an outer surface layer and provided with a first coarse surface portion, an aluminum foil or paper sheet, a second oriented plastic film provided with a second coarse surface portion which is overlapped with the first coarse portion, and a non-oriented plastic film formed as an inner surface layer. A second embodiment of the packing film is a three-layered laminate film in which the following films are laminated in that order: an oriented plastic film formed as a first surface layer and provided with a coarse surface portion, an aluminum foil, and a non-oriented plastic film formed as an inner surface layer. The oriented plastic film forming the outer surface layer is backed at its coarse surface portion by a thin surface layer and laminated to the aluminum foil through a binder layer.

Abstract: A first embodiment of the packing film is a four-layered laminate film in which the following films are laminated in that order: a first oriented plastic film formed as an outer surface layer and provided with a first coarse surface portion, an aluminum foil or paper sheet, a second oriented plastic film provided with a second coarse surface portion which is overlapped with the first coarse portion, and a non-oriented plastic film formed as an inner surface layer. A second embodiment of the packing film is a three-layered laminate film in which the following films are laminated in that order: an oriented plastic film formed as a first surface layer and provided with a coarse surface portion, an aluminum foil or paper sheet, and a non-oriented plastic film formed as an inner surface layer. The oriented plastic film forming the outer surface layer is backed at its coarse surface portion by a thin surface layer and laminated to the aluminum foil through a binder layer.

Abstract: Disclosed are a pouch for containing a material therein, a laminate film for the pouch, and a method for producing the pouch. The laminate film comprises a first plastic layer and at least one second plastic layer on which said first plastic layer is laminated. The first plastic layer is partially subjected to surface roughening treatment prior to the lamination, and surface irregularities are filled with a plastic material of the second plastic layer. In a pouch having substantially rectangular shape, at least one folded portion is provided at a side edge of the pouch. The surface roughened portion is positioned at and around the folded portion and at an external surface of the pouch. In one embodiment, the folded edge is provided at one side of the pouch and a heat sealed portion is provided at the other side edge thereof. In another embodiment, folded portions are provided at both side edges of the pouch and a heat-sealed portion is provided at a rear central portion thereof.

Abstract: Disclosed are a pouch for containing a material therein, a laminate film for the pouch, and a method for producing the pouch. The laminate film comprises a first plastic layer and at least one second plastic layer on which said first plastic layer is laminated. The first plastic layer is partially subjected to surface roughening treatment prior to the lamination, and surface irregularities are filled with a plastic material of the second plastic layer. In a pouch having substantially rectangular shape, at least one folded portion is provided at a side edge of the pouch. The surface roughened portion is positioned at and around the folded portion and at an external surface of the pouch. In one embodiment, the folded edge is provided at one side of the pouch and a heat sealed portion is provided at the other side edge thereof. In another embodiment, folded portions are provided at both side edges of the pouch and a heat-sealed portion is provided at a rear central portion thereof.