Disclosed are a honeycomb cell shock-protection paper pad structure, and a fabrication method and a fabrication apparatus, for overcoming springing back of a stretched honeycomb cell paper shock-protection pad. The honeycomb shock-protection paper pad structure includes paper strips that have an unconnected site of which upper and lower ends are formed with folded-edge bend portions and a connected site that is formed with a central bend portion. A shape-fixing method includes stretching a cellular-form shock-protection paper pad for extension, bending upper and lower ends of the paper strips of the stretched honeycomb cell shock-protection paper pad toward one side, and conducting shape-fixing rolling with paired rollers. A shape-fixing apparatus includes a chassis portion, an edge scraper portion including flexible upper and lower scraper blades mounted obliquely on the chassis portion, and a shape-fixing roller portion including rigid shaping paired roller mounted on the chassis portion.

An extensible slit sheet paper product is produced having an expandable slit pattern that forms open cells upon expansion of the paper product. The paper product is an extensible paper having an extensibility in the range from 1-9% in the machine direction and 1-5% in the cross direction. The expansion produces an array of hexagonal cells. The expanded extensible paper can be used to wrap an object for shipping by wrapping and cushioning the object in the expanded slit sheet material. The extensible, expandable slit sheet paper can be wrapped around itself to produce a void fill product.

An extensible slit sheet paper product is produced having an expandable slit pattern that forms open cells upon expansion of the paper product. The paper product is an extensible paper having an extensibility in the range from 1-9% in the machine direction and 1-5% in the cross direction. The expansion produces an array of hexagonal cells. The expanded extensible paper can be used to wrap an object for shipping by wrapping and cushioning the object in the expanded slit sheet material. The extensible, expandable slit sheet paper can be wrapped around itself to produce a void fill product.

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/m.sup.2. 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.

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/m.sup.2. 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.

In the preferred embodiments, the present invention provides substantially improved slit sheet cushioning products by advantageously combining novel paper properties with novel slit patterns for improved features and characteristics. In some illustrative and non-limiting example embodiments, cushioning products of the present invention can include, e.g., a novel slit sheet material in combination with extensible paper employed as, e.g., a cushioning pad or as cushioning within an envelope product, wherein the cushioning product can be substantially more resilient, but, yet, e.g., thinner for better utilization of space.

In the preferred embodiments, the present invention provides substantially improved slit sheet cushioning products by advantageously combining novel paper properties with novel slit patterns for improved features and characteristics. In some illustrative and non-limiting example embodiments, cushioning products of the present invention can include, e.g., a novel slit sheet material in combination with extensible paper employed as, e.g., a cushioning pad or as cushioning within an envelope product, wherein the cushioning product can be substantially more resilient, but, yet, e.g., thinner for better utilization of space.

Disclosed are a honeycomb cell shock-protection paper pad structure, and a fabrication method and a fabrication apparatus, for overcoming springing back of a stretched honeycomb cell paper shock-protection pad. The honeycomb shock-protection paper pad structure includes paper strips that have an unconnected site of which upper and lower ends are formed with folded-edge bend portions and a connected site that is formed with a central bend portion. A shape-fixing method includes stretching a cellular-form shock-protection paper pad for extension, bending upper and lower ends of the paper strips of the stretched honeycomb cell shock-protection paper pad toward one side, and conducting shape-fixing rolling with paired rollers. A shape-fixing apparatus includes a chassis portion, an edge scraper portion including flexible upper and lower scraper blades mounted obliquely on the chassis portion, and a shape-fixing roller portion including rigid shaping paired roller mounted on the chassis portion.

Disclosed are a honeycomb cell shock-protection paper pad structure, and a fabrication method and a fabrication apparatus, for overcoming springing back of a stretched honeycomb cell paper shock-protection pad. The honeycomb shock-protection paper pad structure includes paper strips that have an unconnected site of which upper and lower ends are formed with folded-edge bend portions and a connected site that is formed with a central bend portion. A shape-fixing method includes stretching a cellular-form shock-protection paper pad for extension, bending upper and lower ends of the paper strips of the stretched honeycomb cell shock-protection paper pad toward one side, and conducting shape-fixing rolling with paired rollers. A shape-fixing apparatus includes a chassis portion, an edge scraper portion including flexible upper and lower scraper blades mounted obliquely on the chassis portion, and a shape-fixing roller portion including rigid shaping paired roller mounted on the chassis portion.

Disclosed are a honeycomb cell shock-protection paper pad structure, and a fabrication method and a fabrication apparatus, for overcoming springing back of a stretched honeycomb cell paper shock-protection pad. The honeycomb shock-protection paper pad structure includes paper strips that have an unconnected site of which upper and lower ends are formed with folded-edge bend portions and a connected site that is formed with a central bend portion. A shape-fixing method includes stretching a cellular-form shock-protection paper pad for extension, bending upper and lower ends of the paper strips of the stretched honeycomb cell shock-protection paper pad toward one side, and conducting shape-fixing rolling with paired rollers. A shape-fixing apparatus includes a chassis portion, an edge scraper portion including flexible upper and lower scraper blades mounted obliquely on the chassis portion, and a shape-fixing roller portion including rigid shaping paired roller mounted on the chassis portion.