Abstract: A paperboard protective corner and a method for manufacturing a paperboard protective corner, the paperboard protective corner comprising: a corner body made of a single paperboard sheet comprising first and second side edges, the single paperboard sheet being folded onto itself to form the paperboard protective corner, the single paperboard sheet including a plurality of folds, both the first and second side edges being received in a corresponding fold so as to be unexposed to an exterior of the paperboard protective corner.

Abstract: A paperboard protective corner and a method for manufacturing a paperboard protective corner, the paperboard protective corner comprising: a corner body made of a single paperboard sheet comprising first and second side edges, the single paperboard sheet being folded onto itself to form the paperboard protective corner, the single paperboard sheet including a plurality of folds, both the first and second side edges being received in a corresponding fold so as to be unexposed to an exterior of the paperboard protective corner.

Abstract: A plastic film roll includes: a convolute cardboard tube including a tubular body having a tubular body wall formed by a plurality of layers of a straight rolled cardboard sheet having a weight equal to or less than 300 gsm; a plastic film wound about the convolute cardboard tube to form a plurality of plastic film windings around the convolute cardboard tube, the plastic film windings creating a radial compression force equal to or greater than 10 bar on the tubular body wall, wherein the cardboard sheet includes a plurality of fibers, at least a majority of the fibers being substantially aligned in a tangential direction relative to the tubular body to allow the convolute cardboard tube to resist the radial compression force.

Abstract: A plastic film roll includes: a convolute cardboard tube including a tubular body having a tubular body wall formed by a plurality of layers of a straight rolled cardboard sheet having a weight equal to or less than 300 gsm; a plastic film wound about the convolute cardboard tube to form a plurality of plastic film windings around the convolute cardboard tube, the plastic film windings creating a radial compression force equal to or greater than 10 bar on the tubular body wall, wherein the cardboard sheet includes a plurality of fibers, at least a majority of the fibers being substantially aligned in a tangential direction relative to the tubular body to allow the convolute cardboard tube to resist the radial compression force.

Abstract: An in-line, contactless and non-destructive method for detecting and identifying defects in a moving cardboard structure is provided, as well as the associated system. The cardboard structure is of the type made of layered paper plies, such as cardboard tubes for example. The method includes the steps of emitting acoustic waves with predetermined frequencies toward the moving cardboard structure. The acoustic waves are converted into mechanical waves propagating through the moving cardboard structure. The method also includes a step of capturing the acoustic waves propagated, wherein said captured acoustic waves result from a conversion of the propagated mechanical waves through the moving cardboard structure. The method also provides steps of analyzing the captured acoustic waves; and detecting and identifying defects in the moving laminated cardboard structure based on predetermined propagation properties measured from the captured acoustic waves.

Abstract: A method for handling and drying cardboard tubes is provided. The method involves using the skids for supporting cardboard tubes during the drying, wrapping and transport of the cardboard tubes, in order to reduce handling of the tubes while maintaining a low moisture level in the tubes.

Abstract: A corner piece is provided for forming packaging elements. The corner piece includes an inner member and an outer member having respective apexes. A connecting member connects the inner and outer members and substantially aligns their apexes, while spacing the inner and outer members apart from one another. A securing element is provided in the outer member for securing an exterior edge protector along the outer member. The securing element includes substantially U-shaped retaining walls engageable with the exterior edge protector. In some embodiments, the spacing between the inner and outer members defines retaining cavities for securing adjacent sidewalls of a storage container.

Abstract: A method for handling and drying cardboard tubes is provided. The method involves using the skids for supporting cardboard tubes during the drying, wrapping and transport of the cardboard tubes, in order to reduce handling of the tubes while maintaining a low moisture level in the tubes.

Abstract: An in-line, contactless and non-destructive method for detecting and identifying defects in a moving cardboard structure is provided, as well as the associated system. The cardboard structure is of the type made of layered paper plies, such as cardboard tubes for example. The method includes the steps of emitting acoustic waves with predetermined frequencies toward the moving cardboard structure. The acoustic waves are converted into mechanical waves propagating through the moving cardboard structure. The method also includes a step of capturing the acoustic waves propagated, wherein said captured acoustic waves result from a conversion of the propagated mechanical waves through the moving cardboard structure. The method also provides steps of analyzing the captured acoustic waves; and detecting and identifying defects in the moving laminated cardboard structure based on predetermined propagation properties measured from the captured acoustic waves.

Abstract: The invention concerns an elongated protective corner for the transport and/or packaging of products. The corner has at least two non-corrugated paperboard plies combined together to create two perpendicular wings and an apex The plies form multiple ply sections, and at least one of the ply sections of a given ply overlaps another ply section of the same ply. This overlapping arrangement gives the apex a resistance force of about 100 to about 500 lbs. The thickness of the corner can vary, with each wing being in the range of about 100 to about 250 points, and each ply is made from paperboard having a grammage of about 120 to about 380 g/m2. The resistance force can be determined by mounting the corner upon two blocks, and applying a force to the apex at a middle of the corner until a fracture is detected.

Abstract: A corner piece is provided for forming packaging elements. The corner piece includes an inner member and an outer member having respective apexes. A connecting member connects the inner and outer members and substantially aligns their apexes, while spacing the inner and outer members apart from one another. A securing element is provided in the outer member for securing an exterior edge protector along the outer member. The securing element includes substantially U-shaped retaining walls engageable with the exterior edge protector. In some embodiments, the spacing between the inner and outer members defines retaining cavities for securing adjacent sidewalls of a storage container.

Abstract: The invention concerns an elongated protective corner for the transport and/or packaging of products. The corner has at least two non-corrugated paperboard plies combined together to create two perpendicular wings and an apex The plies form multiple ply sections, and at least one of the ply sections of a given ply overlaps another ply section of the same ply. This overlapping arrangement gives the apex a resistance force of about 100 to about 500 lbs. The thickness of the corner can vary, with each wing being in the range of about 100 to about 250 points, and each ply is made from paperboard having a grammage of about 120 to about 380 g/m2. The resistance force can be determined by mounting the corner upon two blocks, and applying a force to the apex at a middle of the corner until a fracture is detected.

Abstract: The invention concerns an elongated protective corner for the transport and/or packaging of products. The corner has at least two non-corrugated paperboard plies combined together to create two perpendicular wings and an apex. The plies form multiple ply sections, and at least one of the ply sections of a given ply overlaps another ply section of the same ply. This overlapping arrangement gives the apex a resistance force of about 100 to about 500 lbs. The thickness of the corner can vary, with each wing being in the range of about 100 to about 250 points, and each ply is made from paperboard having a grammage of about 120 to about 380 g/m2. The resistance force can be determined by mounting the corner upon two blocks, and applying a force to the apex at a middle of the corner until a fracture is detected.

Abstract: A method for handling and drying cardboard tubes. The method includes the steps of receiving the cardboard tubes in a horizontal orientation at the exit of a conveyor, the cardboard tubes having respective sidewalls wet from a previous winding and gluing process, the sidewalls having a given moisture level; successively grouping the cardboard tubes in perforated boxes by preserving the horizontal orientation, the perforated boxes having at least two opposed lateral sides provided with openings, the cardboard tubes having respective extremities facing said openings; placing the perforated boxes into an air dryer with the cardboard tubes aligned with an air flow of the dryer; drying the cardboard tubes by circulating air in the dryer through said perforated boxes for a predetermined time period, lowering the moisture level of the cardboard tubes; and using the perforated boxes for shipment of the cardboard tubes.

Abstract: A recyclable composite container is provided. The recyclable composite container comprises a cardboard hollow body having an open end defining an opening, the body being formed by a sidewall having inner and outer surfaces, the sidewall being provided with an aperture at a distance from the open end. The recyclable composite container also comprises a framing element removably connectable to the open end having a collar sized and shaped for snugly fitting over said open end; and a resilient arm extending from the collar, the arm extending along the inner surface of the sidewall and having a projection sized and shaped to be removably fitted in the aperture of the sidewall of the hollow body.