Method for packing stacked bundles made of paper
AssigneeClinpet Japan Co., Ltd.
InventorShinichi Ikawa
Life of this patent
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Abstract
A method for packing stacked bundles made of papers. An operator firstly arranges three bundles of paper towels laterally and put the three bundles in a packaging member. As the packaging member, a commercially available bag made of polyethylene is used. Next, by using a vacuum apparatus, in order to produce a vacuum packaged body, air in the packaging member is sucked until the thickness of the bundles is reduced to a half or so. Next, a plurality of the vacuum packaged bodies is packed in a corrugated cardboard box. The vacuum packaged body can be gradually swelling when several hours pass since vacuum-packaging. Finally, the operator seals the corrugated cardboard box.
Claims3
A method for packing bundles of sheet-like members, the method comprising:
- a packing process in which bundles are stacked and packaged in a packaging member, wherein each of the bundles is formed by stacking sheet-like members and the packaging member comprises an opening;
- a vacuumizing process in which air in the packaging member is sucked out through the opening to produce a vacuum-packaged body of which the packaging member temporarily maintains a vacuum state, wherein the air is sucked out until a thickness of the stacked bundles is reduced by 30% to 70% along a stack direction of the sheet-like members;
- a wrapping process in which the vacuum-packed body is packed in a bag, wherein the bag is made of kraft paper;
- and
- a swelling process in which the sheet-like members are swelled in the bag by air drawn into the vacuum-packed body such that the bag is pressured outwardly by the swelling of the sheet-like members,
- wherein the packaging member is perforated after the wrapping process such that air is drawn into the packaging member in the swelling process.
Dependencies are inferred from the claim text.