Self-standing pouch

Patent metadata

Field	Value
Publication number	US-2016368681-A1
Application number	US-201414901943-A
Country	US
Kind code	A1
Filing date	Jul 25, 2014
Priority date	Jul 29, 2013
Publication date	Dec 22, 2016
Grant date	—

Abstract

A pouch in which an air layer can be formed with a simple mechanism using a single-tube air nozzle is provided. A pouch includes, in a side edge portion where a first and a second side-surface films are sealed, a non-sealed region which is not sealed over a predetermined length, and an opening provided near an upper end of the non-sealed region penetrating through the first and/or the second side-surface films. The non-sealed region includes an air filling portion which takes therein, through the opening, air from an air blowout hole of an air nozzle having a tip surface in a predetermined distance from the opening. The air filling portion is not sealed within a predetermined radius larger than a radius of the air nozzle such that, when the air filling portion expands due to increase of internal pressure, a part near the opening is adhered to the tip surface.

First claim

1 . A self-standing pouch in which a first side-surface film, a second side-surface film, and a bottom film sandwiched therebetween are joined together, peripheral portions thereof are sealed to form a storage part, and the bottom film serves as a lower bottom surface of the storage part, the self-standing pouch comprising:
a non-sealed region provided in a side edge portion corresponding to a region where peripheral portions at side ends of the first side-surface film and the second side-surface film are sealed, the non-sealed region being a region not sealed over a predetermined length in a top-bottom direction, and an opening provided at a position near an upper end of the non-sealed region, the opening being formed penetrating through at least one of the first side-surface film and the second side-surface film, wherein the non-sealed region includes an air filling portion which takes therein, through the opening, air blown out from an air blowout hole of an air nozzle having a tip surface disposed at a position a predetermined distance apart from the opening, and the air filling portion is not sealed within a predetermined radius larger than a radius of the air nozzle from a center of the opening such that, when the air filling portion expands due to an increase in an internal pressure, a part near the opening is closely adhered to the tip surface of the air nozzle.

2 . The self-standing pouch according to claim 1 , wherein the opening is a slit or a hole penetrating through the first side-surface film and/or the second side-surface film.

3 . The self-standing pouch according to claim 1 , wherein the opening is at least one straight-line slit having a length longer than a diameter of the air blowout hole of the air nozzle and shorter than a diameter of the air nozzle.

4 . The self-standing pouch according to claim 1 , wherein the opening is a plurality of straight-line slits each having a length longer than a diameter of the air blowout hole of the air nozzle and shorter than a diameter of the air nozzle, and intersecting with each other.

5 . The self-standing pouch according to claim 1 , wherein the opening is an arc-shaped slit having a diameter larger than a diameter of the air blowout hole of the air nozzle and smaller than a diameter of the air nozzle.

6 . The self-standing pouch according to claim 1 , wherein the non-sealed region further includes a constricted portion near a location below the air filling portion, the constricted portion having a length, in a right-left direction, shorter than other portions.

Assignees

• Toppan Printing Co Ltd

Inventors

• Miyoshi Seiki
• Yanagiuchi Motoo
• Yoshikane Tohru

Classifications

• B65D75/5883

  connected to the package at the sealed junction of two package walls · CPC title

• B65D33/02

  Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames {(B65D33/007 takes precedence)} · CPC title

• B65D75/008 Primary

  Standing pouches, i.e. "Standbeutel" · CPC title