Abstract: 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.

Abstract: An easy open apparatus for multi-wall bags and a method for making such bags are disclosed. The bag has a closed 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.

Abstract: An anti-skid treatment is applied to one or both major surfaces of bulk materials bags. The treatment may be applied to any bulk material bag, but is detailed in respect of films that tend to be relatively slippery, such as oriented polypropylene (“OPP”) and biaxially oriented polypropylene (“BOPP”). In one preferred embodiment, an elastomeric polymer having a coefficient of friction higher than that of the bag material is applied in strips to one or both surfaces of the bag. A method of manufacturing the bags is also described.

Abstract: An easy open apparatus for multi-wall bags and a method for making such bags are disclosed. The bag has a closed 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.

Abstract: A pinch bottom open mouth bulk material bag fabricated from polywoven material has closures at one or both ends that are non-sewn and which comprise a strip of tape running in the cross-bag direction. The tape is folded over the respective bag end, which may be modified, and is glued in place to close the end. The closure has no holes or other openings through which contaminants may enter the bag interior.

Abstract: A pinch bottom open mouth bulk material bag fabricated from polywoven material has closures at one or both ends that are non-sewn and which comprise a strip of tape running in the cross-bag direction. The tape is folded over the respective bag end, which may be modified, and is glued in place to close the end. The closure has no holes or other openings through which contaminants may enter the bag interior.

Abstract: A pinch bottom open mouth bulk material bag fabricated from polywoven material has closures at one or both ends that are non-sewn and which comprise a strip of tape running in the cross-bag direction. The tape is folded over the respective bag end, which may be modified, and is glued in place to close the end. The closure has no holes or other openings through which contaminants may enter the bag interior.

Abstract: A block bottom bulk material bag, or satchel bottom bag, is formed from multiple plies of paper and an inner ply of plastic that is adhered to the innermost ply of paper. The bag is formed from roll-stock material that is cut into blanks. The knives that cut the blanks are registered relative to one another so that when the pinch bottom or satchel bottom is formed there is no paper surface exposed to the interior of the bag and the entire interior surface of the bag to which bulk material contained in the bag is exposed is covered with plastic.

Abstract: A block bottom bulk material bag, or satchel bottom bag, is formed from multiple plies of paper and an inner ply of plastic that is adhered to the innermost ply of paper. The bag is formed from roll-stock material that is cut into blanks. The knives that cut the blanks are registered relative to one another so that when the pinch bottom or satchel bottom is formed there is no paper surface exposed to the interior of the bag and the entire interior surface of the bag to which bulk material contained in the bag is exposed is covered with plastic.

Abstract: A block bottom bulk material bag, or satchel bottom bag, is formed from multiple plies of paper and an inner ply of plastic that is adhered to the innermost ply of paper. The bag is formed from roll-stock material that is cut into blanks. The knives that cut the blanks are registered relative to one another so that when the pinch bottom or satchel bottom is formed there is no paper surface exposed to the interior of the bag and the entire interior surface of the bag to which bulk material contained in the bag is exposed is covered with plastic.