公开(公告)号：US09650193B2

公开(公告)日：2017-05-16

申请号：US14901943

申请日：2014-07-25

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Seiki Miyoshi ,  Motoo Yanagiuchi ,  Tohru Yoshikane

IPC: B65D30/16 ,  B65D75/00 ,  B65D75/58 ,  B65D33/02

CPC classification number: B65D75/008 ,  B65D33/02 ,  B65D75/5883

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.