HEAT-SHRINKABLE PACKAGE

Japanese Patent JP2004269053

A

To provide a heat-shrinkable packaging receptacle which is easy to manufacture and is provided with a seal which is easy to peel with a hand, and with a high-strength end seal resistant to breakdown.

The individual end-sealed packaging receptacle is formed, like a bag, from a heat-shrinkable film sheet, having a first edge and an opposing second edge. This packaging receptacle includes a first seal bonding the first edge and the second edge to define a tube member having a first bag wall, second bag wall, first and second opposing lay-flat bag edges, an end and an open mouth. The packaging receptacle includes a second seal through the first and second bag edges, extending laterally across the width of both the first and second bag walls and thereby closing the end. Preferably, at least one of the first and second seals is a peelable seal. The first seal may be a lap seal, a fin seal, a butt-seal, or a seal strip. A method of forming an individual, end-sealed, heat-shrinkable packaging receptacle is also disclosed.

BUSCHE DAVID A
POCKAT GREGORY ROBERT
SCHELL THOMAS ANDREW

JP2004044321A

September 30, 2004

February 20, 2004

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CURWOOD INC

B29C61/08; B31B50/64; B32B27/32; B65D33/00; B65D65/40; B65D75/00; B65D30/02; B29L7/00; B29L9/00; (IPC1-7): B65D30/02; B29C61/08; B31B1/64; B32B27/32; B65D33/00; B65D65/40

JP2002146343A	2002-05-22
JP2000142724A	2000-05-23
JPH01124558A	1989-05-17

US5888648A	1999-03-30
US6221410B1	2001-04-24
EP0435498A2	1991-07-03
US4944409A	1990-07-31

Motohiro Kurauchi
Hiroshi Kazama
Endo Azusa
Takumi Yoshida
Taku Nakajima

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