Heat-shrinkable bags comprising an electronically detectable label and packages obtained therefrom

• US 20070187275A1
• Filed: 02/16/2007
• Published: 08/16/2007
• Est. Priority Date: 02/10/2006
• Status: Abandoned Application

• Current Assignee: Fabrice Roy, Francois-Xavier Meric, Stefano Santagostino
• Original Assignee: Fabrice Roy, Francois-Xavier Meric, Stefano Santagostino
• Inventors: Santagostino, Stefano, Roy, Fabrice, Meric, Francois-Xavier
• Application Number:
  US11/707,322
• Publication Number:
  US 20070187275A1
• Time in Patent Office: Days
• US Class Current: 206/497
• CPC Class Codes: B65D 2203/10 Transponders
• CPC Class Codes: B65D 75/54 Cards, coupons, or other inserts or accessories opening devices B65D75/70
• CPC Class Codes: B65D 81/2023 in a flexible container B65D81/2038 takes precedence

Abstract

The present invention relates to a heat-shrinkable bag for the vacuum packaging of products, preferably food products, comprising an electronically detectable label applied onto one of its inner walls for the traceability and/or theft control of the product being packaged. A method for making heat-shrinkable bags comprising an electronically detectable label applied onto one of the inner walls from a folded web of a heat-shrinkable film is also disclosed.

Claims

1. Heat-shrinkable bag for the vacuum packaging of products comprising an electronically detectable label adhered on one of the interior walls of said bag.

2. The bag according to claim 1 comprising two side seals.

3. A method of manufacturing a plurality of heat-shrinkable bags comprising an electronically detectable label adhered on one of the internal walls of each one of said bags comprising the steps of:

feeding along a machine direction a web of a heat-shrinkable film folded along the longitudinal direction, said web comprising first and second superposed plies extending between a first marginal fold and an open edge;

separating said first and second plies at the open edge to an extent sufficient to introduce an electronically detectable label between the two plies;

applying said electronically detectable label to the interior wall of one of said first or second ply through the open edge;

downstream of said label applying station transversely sealing and cutting said web along a plurality of regularly spaced transverse seal lines so that at least one electronically detectable label is comprised in each bag.

4. The method according to claim 3 wherein the web is partially cut and the plurality of transverse-sealed bags form a pre-cut serrated chain of bags.

5. A vacuum packed product comprising a product enclosed in a bag, said bag being heat-shrunk around said product, characterized in that an electronically detectable label is adhered on one of the internal walls of said heat-shrunk bag.

6. A vacuum packed food product according to claim 5.