Abstract: A barrier-type paper with a non-barrier paper uses suitable laminating adhesives to form a food packaging material. More specifically, a preferred embodiment of the invention is directed to a metallized or aluminum oxide coated paper sheet laminated to a bleached paper sheet while avoiding optics of a shiny metal material being present by at least one of employing a non-shiny metal for the metallized layer, coating or printing one or more layers upon the metallized layer, and sandwiching the metallized layer in a laminate structure such that the metallized layer is configured to be visually hidden so as to not be optically detectable in a paper recycle line.

Abstract: A polyethylene cold seal film includes a main body layer constituted by a polyethylene film, a cold seal adhesive externally exposed on one side of the main body layer, and a cold seal release layer externally exposed on an opposing side of the main body layer, with the cold seal release layer also being constituted by a polyethylene film. The film can be advantageously provided in roll form, particularly usable in wrapping food products, with the wrapping being completely and readily recyclable, while being at least essentially void of any polypropylene polymers. The overall film can also have other layers, including a tie layer positioned between the main body layer and the cold seal release layer, a barrier layer positioned between the main body layer and the tie layer; and an ink layer positioned between the tie layer and the cold seal release layer.

Abstract: A multilayer moisture barrier film includes at least one desiccant-containing layer disposed adjacent to at least one desiccant free layer, where the at least one desiccant-containing layer comprises a polymeric matrix defining a plurality of cavities and desiccant particles, wherein at least one of the plurality of cavities has at least one desiccant particle in communication therewith.

Abstract: A multilayer moisture barrier film includes a first outer layer, a second outer layer, and at least one desiccant-containing inner layer between the first and second outer layers. The inner layer can have cavities with which the desiccant particles are in communication.

Abstract: The present disclosure relates to paperboard having an improved basis weight to bending strength relationship and methods of making paperboard having an improved basis weight to bending strength relationship. In particular, a paperboard provided herein includes a refined cellulose in at least 1 ply.

Abstract: A carton is formed by folding and interconnecting a plurality of body pieces to establish at least front and rear panels and opposing side panels which can be joined to establish the carton with an interior cavity for containing edible products. At least two of the front, rear and opposing side panels are interconnected by one or more bridge tabs so as to constitute a unitary, single one of the separate body pieces, thereby preventing the interconnected panels from skewing during assembly of the carton.

Abstract: The present disclosure relates to paperboard having an improved basis weight to bending strength relationship and methods of making paperboard having an improved basis weight to bending strength relationship. In particular, a paperboard provided herein includes a refined cellulose in at least 1 ply.

Abstract: A carton is formed from folding a unitary blank, made from paperboard, to establish a front panel, a rear panel, opposing side panels, a bottom wall and a top wall. To strengthen the carton, at least two side inserts, having a caliper which is equal to or greater than the caliper of the unitary blank, are provided within an interior cavity of the carton and against a respective one of the opposing side panels. The unitary blank has a predominate fiber orientation which is directionally different from each of the at least two side inserts. With this arrangement, the cartons have enhanced structural integrity, enabling similarly configured cartons to be effectively, vertically stacked without deformation.

Abstract: The present disclosure relates to paperboard having an improved basis weight to bending strength relationship and methods of making paperboard having an improved basis weight to bending strength relationship. In particular, a paperboard provided herein includes a refined cellulose in at least 1 ply.

Abstract: In a method of ultrasonically bonding paperboard, first and second pieces of paperboard are supplied, with at least one of the first and second pieces of paperboard being provided with a clay coating. The first and second pieces of paperboard are moistened and positioned in a gap between a sonotrode and an anvil of an ultrasonic welding unit. The ultrasonic welding unit is activated and the first and second pieces of paperboard are compressed between 30-70%, more preferably between 40-60%, to cause the clay coating to mobilize and force the clay coating material into fiber matrixes of the first and second pieces of paperboard, followed by cooling of the first and second pieces of paperboard, to bond the first and second pieces of paperboard.

Abstract: A paperboard carton is formed by folding and interconnecting an even number of body pieces to establish at least a bottom wall, first and second spaced main face walls, opposing side walls and a top wall, which collectively define an interior cavity for containing edible products, with the first and second main face walls and the opposing side walls being spaced by each of the bottom wall and the top wall, each of said body pieces being formed of paperboard, and at least two of the body pieces having predominate fiber orientations which are directionally distinct from one another, thereby establishing a compression strength for each carton which enables similarly configured cartons to be directly stacked upon each other for shipping purposes.

Abstract: A paperboard carton is formed by interconnecting a main body piece, folded to establish at least a bottom wall and first and second spaced side panels, with separately formed third and fourth side panels. To strengthen the carton and enable similarly configured cartons to be effectively, vertically stacked, a caliper or basis weight of each of the third and fourth side panels is made greater than the main body piece and/or an orientation of the fibers between the pieces is varied as compared to a conventional carton.

Abstract: In a method of ultrasonically bonding paperboard, first and second pieces of paperboard are supplied, with at least one of the first and second pieces of paperboard being provided with a clay coating. The first and second pieces of paperboard are moistened and positioned in a gap between a sonotrode and an anvil of an ultrasonic welding unit. The ultrasonic welding unit is activated and the first and second pieces of paperboard are compressed between 30-70%, more preferably between 40-60%, to cause the clay coating to mobilize and force the clay coating material into fiber matrixes of the first and second pieces of paperboard, followed by cooling of the first and second pieces of paperboard, to bond the first and second pieces of paperboard.

Abstract: A multilayer moisture barrier film includes a first outer layer, a second outer layer, and at least one desiccant-containing inner layer between the first and second outer layers. The inner layer can have cavities with which the desiccant particles are in communication.

Abstract: A carton is formed from folding a unitary blank, made from paperboard, to establish a front panel, a rear panel, opposing side panels, a bottom wall and a top wall. To strengthen the carton, at least two side inserts, having a caliper which is equal to or greater than the caliper of the unitary blank, are provided within an interior cavity of the carton and against a respective one of the opposing side panels. The unitary blank has a predominate fiber orientation which is directionally different from each of the at least two side inserts. With this arrangement, the cartons have enhanced structural integrity, enabling similarly configured cartons to be effectively, vertically stacked without deformation.

Abstract: A carton (5) is formed by folding and interconnecting a plurality of body pieces (15, 19, 21) to establish at least front and rear panels (25,35) and opposing side panels (59,77) which can be joined to establish the carton with an interior cavity (90) for containing edible products. At least two of the front, rear and opposing side panels are interconnected by one or more bridge tabs (56-58; 100; 110, 115; 120, 121; 130, 131; 150-152; 160-162) so as to constitute a unitary, single one of the separate body pieces, thereby preventing the interconnected panels from skewing during assembly of the carton.

Abstract: The present disclosure relates to paperboard having an improved basis weight to bending strength relationship and methods of making paperboard having an improved basis weight to bending strength relationship. In particular, a paperboard provided herein includes a refined cellulose in at least 1 ply.

Abstract: A paperboard carton is formed by folding and interconnecting an even number of body pieces to establish at least a bottom wall, first and second spaced main face walls, opposing side walls and a top wall, which collectively define an interior cavity for containing edible products, with the first and second main face walls and the opposing side walls being spaced by each of the bottom wall and the top wall, each of said body pieces being formed of paperboard, and at least two of the body pieces having predominate fiber orientations which are directionally distinct from one another, thereby establishing a compression strength for each carton which enables similarly configured cartons to be directly stacked upon each other for shipping purposes.

Abstract: A multilayer film includes a base film, a cavitated layer, and a sealing layer. Such films have been found to produce good ultrasonic seals in the cross-machine direction at high speeds.

Abstract: A paperboard carton is formed by interconnecting a main body piece, folded to establish at least a bottom wall and first and second spaced side panels, with separately formed third and fourth side panels. To strengthen the carton and enable similarly configured cartons to be effectively, vertically stacked, a caliper or basis weight of each of the third and fourth side panels is made greater than the main body piece and/or an orientation of the fibers between the pieces is varied as compared to a conventional carton.