# US 10,308,384 B2 · Method for packing stacked bundles made of paper

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- Number: US 10,308,384 B2
- Document ID: US10308384B2
- Status: Granted
- Kind: B2
- Application number: 14/892,416
- Filed: 2015-03-17
- Published: 2016-12-22
- Granted: 2019-06-04
- Earliest claimed: 2014-03-17
- Assignees: Clinpet Japan Co., Ltd.
- Applicants: Clinpet Japan Co., Ltd.
- Inventors: Shinichi Ikawa
- Web page: https://patentgrep.com/patent/US10308384B2

## CPC

- B65B 25/145: {packaging folded articles}
- B65B 5/067: {in bags (B65B5/061 - B65B5/065 take precedence)}
- B65B 31/024: {specially adapted for wrappers or bags (B65B31/021, B65B31/022 take precedence)}
- B65B 63/028: {by pneumatic means}
- B65D 77/02: Wrapped articles enclosed in rigid or semi-rigid containers
- B65D 81/2023: {in a flexible container (B65D81/2038 takes precedence)}
- B65D 85/07: for compressible or flexible articles (for wearing apparel B65D85/18)
- B65D 85/62: for stacks of articles; for special arrangements of groups of articles
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The method for packing bundles according to claim 1,
wherein the stacked bundles are arranged laterally in the packaging member such that the bundles are stacked in a direction perpendicular to the thickness direction of the sheet-like members.

### Claim 3 (depends on 1)

The method for packing bundles according to claim 1, the thickness is reduced substantially uniformly for the stacked bundles in the vacuumizing process.