Disclosed is a reusable flat envelope bag, such as a flat mail envelope, which comprises an envelope body defining a pouch, the envelope body having an opening at one end or one side to access the pouch, at least one wrist strap attachable to the envelope body by which wrist strap the envelope can be reused as a bag or wristlet. The reusable flat envelope bag may optionally include one or more handles.

A method of manufacturing layered protective packaging materials and a protective packaging product is described. In an embodiment the method comprises the steps of: selecting one or more layers of a substrate; treating at least one surface of at least one of said layers with a coating composition; drying the layers to substantially remove the water content from the coating composition; and applying heat and/or radiation to the coating composition to volumetrically expand the coating composition to transform the treated layer into a protective layer. The step of treating the layer with the coating composition uses a flexographic coating technique.

Packaging that includes a first layer of bubbles, wherein each of the bubbles comprises an outer shell that defines an interior cavity, and a first element and a second, different element provided within the interior cavity of at least one bubble. The at least one bubble is configured to inflate or degrade over time.

Packaging that includes a first layer of bubbles, wherein each of the bubbles comprises an outer shell that defines an interior cavity, and a first element and a second, different element provided within the interior cavity of at least one bubble. The at least one bubble is configured to inflate or degrade over time.

The present invention provides a crossed staggered and stacked-type air packaging device and a manufacturing method therefor. The crossed staged and stacked-type air packaging device includes at least two inflation packaging main body layers, so as to form an accommodation cavity used for storing an article to be packaged. Each inflation packaging main body layer includes at least one sub-inflation unit. The sub-inflation units of at least two adjacent inflation packaging main body layers have different extending directions, so that at least two adjacent inflation packaging main body layers are arranged in a crossed and staggered manner.

The present invention provides a crossed staggered and stacked-type air packaging device and a manufacturing method therefor. The crossed staged and stacked-type air packaging device includes at least two inflation packaging main body layers, so as to form an accommodation cavity used for storing an article to be packaged. Each inflation packaging main body layer includes at least one sub-inflation unit. The sub-inflation units of at least two adjacent inflation packaging main body layers have different extending directions, so that at least two adjacent inflation packaging main body layers are arranged in a crossed and staggered manner.

A full recycling environmental protection packaging structure and a manufacturing method thereof 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 first surface. The protecting layer includes at least one layer of liner which is a three-dimensional network structure formed by paper material being stretched after being die-cut. The planar structure is sealed edges thereof and an opening is reserved to form a bag body. 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.

A full recycling environmental protection packaging structure and a manufacturing method thereof 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 first surface. The protecting layer includes at least one layer of liner which is a three-dimensional network structure formed by paper material being stretched after being die-cut. The planar structure is sealed edges thereof and an opening is reserved to form a bag body. 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.

A manufacturing method of a full recycling environmental protection packaging structure having a paper planar structure includes step S1, preparing at least two rolls of base paper rolls; step S2, selecting at least one roll of base paper roll, performing unreeling processing on the at least one roll of base paper roll to form a die-cutting paper, rewinding the die-cutting paper to be reserved; step S3, selecting at least one roll of base paper roll and at least one roll of die-cutting paper roll, synthetically unreeling the at least one roll of base paper roll and die-cutting paper roll along a same direction, stretching a die-cutting paper coiled material to form a liner belt, adhering the liner belt and an unreeled base paper reel belt to form a planar structure belt; step S4, sealing the planar structure on edges thereof so as to form a bag body having an opening.

A manufacturing method of a full recycling environmental protection packaging structure having a paper planar structure includes step S1, preparing at least two rolls of base paper rolls; step S2, selecting at least one roll of base paper roll, performing unreeling processing on the at least one roll of base paper roll to form a die-cutting paper, rewinding the die-cutting paper to be reserved; step S3, selecting at least one roll of base paper roll and at least one roll of die-cutting paper roll, synthetically unreeling the at least one roll of base paper roll and die-cutting paper roll along a same direction, stretching a die-cutting paper coiled material to form a liner belt, adhering the liner belt and an unreeled base paper reel belt to form a planar structure belt; step S4, sealing the planar structure on edges thereof so as to form a bag body having an opening.