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US 12,275,568 B2Granted
Packaging bag, method of manufacturing packaging bag, and sheet package
AssigneeDaio Paper Corporation
InventorShinichi Warashina
Life of this patent
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Abstract
A packaging bag configured to pack a sheet in a folded-packaged manner includes a paper layer including a paper component, and a resin layer including a thermoplastic resin provided on both surfaces of the paper layer, wherein a proportion of the paper component in the packaging bag is 45% or more.
Claims8
A packaging bag configured to pack a sheet in a folded-packaged manner, comprising:
- a paper layer including a paper component;
- a resin layer including a thermoplastic resin provided on both surfaces of the paper layer;
- wherein a proportion of the paper component in the packaging bag is 45% or more;
- and
- wherein the proportion of the paper component is calculated based on a specific gravity of the paper layer and a specific gravity of the resin layer.
2 more elements
Dependencies are inferred from the claim text.