A buffer material including a skinned polyurethane foam including a foam layer and a skin layer formed on the surface of the foam layer, wherein the skinned polyurethane foam essentially contains no silicone compound, the foam layer is polyurethane foam, the skin layer is a polyurethane resin layer produced by reaction of a skin-isocyanate component containing an aliphatic and/or an alicyclic polyisocyanate with a skin-active hydrogen group-containing component, the skin layer has a storage modulus at 23 C. (E.sub.coat) of 110.sup.7 Pa or more and 310.sup.8 Pa or less, the foam layer has a storage modulus at 23 C. (E.sub.foam) of 110.sup.5 Pa or more and 510.sup.6 Pa or less, and the ratio (E.sub.coat/E.sub.foam) of the storage modulus at 23 C. (E.sub.coat) of the skin layer relative to the storage modulus at 23 C. (E.sub.foam) of the foam layer is 10 or more and 500 or less.

Provided is a method for producing a packing sheet with improved insulation and storage properties, the method including: producing a cell packing sheet by attaching together two overlapping films such that multiple cells are formed therebetween, by sealing second ends of the cells, and by disposing a check valve in an injection hole formed in a first end of each of the cells; inflating the cells by injecting a fluid through the respective check valves of the cells; attaching upper and lower films respectively to upper and lower sides of the cell packing sheet; cutting the cell packing sheet along a second edge thereof together with the upper and lower films such that the second ends of the sealed cells are opened; and sealing a second end of the upper film, a second end of the cell packing sheet, and a second end of the lower film.

The presently disclosed subject matter generally relates to recyclable insulation material for shipping containers, groceries bags, etc., machines for making the recyclable insulation material, and methods for the making the recyclable insulation material. In one aspect, a method of forming an insulation product may include forming a continuous sheet of paper into a plurality of flexible loops defining a plurality of air channels extending in a direction that is substantially perpendicular with a machine direction of the continuous sheet of paper. The method may also include immediately attaching a first layer of paper and a second layer of paper to the plurality of flexible loops as they are formed so that the continuous sheet of paper retains the plurality of flexible loops between the first layer and the second layer and that the plurality of flexible loops remain unattached with respect to one another.

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.

The presently disclosed subject matter is directed generally to multilayer films suitable for use in forming pouches, such as (but not limited to) bioprocessing pouches. When used in the formation of solution pouches, the disclosed films help prevent or reduce the number of seal failures, such as during transportation or use. The disclosed films comprise first and second vibration dampening layers and first and second barrier layers.

A full recycling environmental protection packaging structure applied to express deliveries, postal services and logistics and made of a planar structure of paper. The packaging structure includes a first surface and a protecting layer overlapped on the surface. The protecting layer includes at least one layer of liner which is a three-dimensional network structure. The packaging structure of the present disclosure can overcome problems that kraft paper bubble bags or envelopes, and paper and plastics can't be separated and recycled to pollute environment in the prior art. At the same time, it can solve technical problems of dust pollution and poor air quality caused by using powdery and granular soft structures used as buffers.

Sheet packaging has a corrugated ply bonded to a backing ply. The corrugated ply forms parallel flutes. The packaging comprises voids through both the corrugated ply and the backing ply at intervals along the flutes, thereby forming a plurality of insular portions interconnected by flexures. Each insular portion has a flute portion and a backing portion between adjacent voids and bonded together at respective edges and each flexure comprises bonded-together portions of the corrugated ply and the backing ply. The flexures confer hyper flexibility to the packaging wherein each flexure possesses an independent bend axis across which the flexure can both be twisted and bent.

The invention relates to a cover or case for goods, in particular for use as a cover or case for hobby or sports equipment. In an embodiment, the case has an inner portion, formed of expanded polypropylene (ePP) and defining a cavity for receiving at least part of the item. The case also includes an outer layer, formed of self-reinforcing polypropylene (srPP), arranged to cover an outer surface of at least part of the inner portion. In further embodiments, the cover is formed of two or more sections that may be arranged to at least partially overlap, wherein adjusting the overlap of the at least two sections changes the dimensions of an inner cavity within the cover or case. The case may be telescoping, in order to provide adjustable dimensions for a cavity within the case.

A first aspect of the present invention is a constant force compression construct, comprising: (a) a plurality of compressible layers, each compressible layer comprising a plurality of interconnected flexible struts configured as a regular hexagonal lattice of repeating unit cells, with the layers spaced apart from one another, and with the unit cells of each layer aligned with one another; and (b) a plurality of beams interconnecting each of the compressible layers with each respective adjacent compressible layer to form a three-dimensional lattice having an upper portion, a lower portion, and a compressible region therebetween, with the repeating unit cells contained in the compressible region.

A laminated foam sheet obtained by a coextrusion lamination method and having a polyethylene foam layer, and an antistatic layer laminated on at least one side of the foam layer. The antistatic layer contains a polyethylene resin, an ionomer resin and a polyalkylene glycol and has such specific morphology that the polyethylene resin forms a continuous phase and the ionomer resin forms small dispersed phases dispersed in the continuous phase.