Sheet packaging material for producing sealed packages of pourable food products

US9487324B2 · kind B2 · utility

Assignee

• Tetra Laval Holdings & Finance S.A. · CH

Inventors

• Gabor Benkö · Lund, SE
• Angelo Sorbara · San Faustino, IT
• Cristiano Casale · Gualdicciolo, SM
• Marco Marchetti · Carpi, IT
• Sebastian Heinonen · Ulricehamn, SE
• Domenico Didonna · Modena, IT
• Tiziana Cavecchia · Modena, IT
• Claudio Casarini · Modena, IT

Key dates

• Filing date: Jun 18, 2010
• Grant date: Nov 8, 2016
• Expiry date: May 21, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/15
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A sheet packaging material for producing a sealed package of a pourable food product comprises one base layer, a number of lamination layers covering both sides of the base layer, and a removable portion which, in use, can be detached partly from the rest of the packaging material along at least one arc-shaped cutting line and folded at a folding zone extending between opposite ends of the cutting line to free a pour opening; the removable portion comprises a central area made of whole packaging material and which, in use, remains attached to the rest of the packaging material through a permanent bridge defined by the folding zone, and a peripheral area for cutting interaction, extending around part of the central area, containing the cutting line and including at least one pre-laminated opening formed by a through slot at least in the base layer and covered by one or more of the lamination layers.