The present invention discloses an all-paper cushion express envelope, and belongs to the technical field of logistic packaging. An embodiment of the present invention provides an all-paper cushion express envelope including: an upper bag face; a lower bag face; a bag tongue; and two cushion pads, in which the bag tongue is arranged at the top of the lower bag face and is integrally formed with the lower bag face, the upper bag face is arranged on a front side of the lower bag face and is integrated with the lower bag face and the bag tongue, two side edges of the upper bag face and the lower bag face adhere to each other via environmentally friendly glue.

A repulpable insulation material includes a batt formed of a mixture of thermoplastic binder fibers and cellulose fibers bound together by the thermoplastic binder fibers. The thermoplastic binder fibers make up about 0.5% to 25% by weight of the batt. The repulpable insulation material have a weight within a range from 1000 GSM to 1600 GSM. Subjecting the repulpable insulation material to a repulpability test produces greater than 85% fiber yield.

A sack for mailing at least one item or for dunnage is provided. The sack is formed by two facing panels sealed along a perimeter. Each panel is at least one-ply and the ply has a layer of paper having a grammage from 35 to 450 g/m.sup.2 and a film of an extruded or laminated polymer covering one face of the layer of paper.

A method of forming a shipping container includes mixing paper fibers with a binder fiber to form a mixture; disposing the mixture onto a surface to form a layer of the mixture; applying heat to form a paper fiber batt from the mixture having a fixed width and fixed length; and inserting the paper fiber batt within an interior of a corrugated box.

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.

According to some illustrative embodiments, a system and method is provided that includes, e.g., means for continuously conveying an assembly of layered sheets including a first paper sheet, at least one expanded sheet and a second paper sheet in a conveying flow between, e.g., a rotary mandrel or member at an upstream position in a direction of conveyance and a rotary die crushing and cutting tool, with said rotary mandrel or member and said rotary die crushing and cutting tool maintaining the at least one expanded sheet in an expanded state, said rotary tool having a crushing component that crushes a portion of the at least one expanded sheet such as to form a flap forming region of an envelope and a cutting component that cuts the assembly of layered sheets such as to separate individual envelope units.

A repulpable insulation material includes a batt formed of a mixture of thermoplastic binder fibers and cellulose fibers bound together by the thermoplastic binder fibers. The thermoplastic binder fibers make up about 0.5% to 25% by weight of the batt. The repulpable insulation material have a weight within a range from 1000 GSM to 1600 GSM. Subjecting the repulpable insulation material to a repulpability test produces greater than 85% fiber yield.

One or more implementations of a multi-film thermoplastic bag with a grab zone of contact areas positioned in a high-touch area of the bag. For example, the multi-film thermoplastic bag includes one or more regions of a first film in contact with a second film at one or more contact areas. The grab zone regions of one or more contact areas are located in visible and high-touch areas to provide visual and tactile cues of strength and durability. Moreover, the grab zone regions of one or more contact areas serve to distribute pull and lift forces across a wider area in order to avoid common failures in high-touch areas such as over stretching, punctures, tears, and rips.

A repulpable insulated container assembly having a container formed of paper such as corrugated cardboard or varying paper materials and defining an interior; and a repulpable insert placed within the interior of the container and formed of a first paper layer; and a paper fiber pad coupled to the first paper layer.

A method of forming a shipping container includes mixing paper fibers with a binder fiber to form a mixture; disposing the mixture onto a surface to form a layer of the mixture; applying heat to form a paper fiber batt from the mixture having a fixed width and fixed length; and inserting the paper fiber batt within an interior of a corrugated box.