Verfahren zur Herstellung eines Streifens zum Versiegeln eines Laminierten Verpackungsmaterials für Flüssige Lebensmittelprodukte

Details

Veröffentlichungs-Nr.

EP4190538

Aktenzeichen

EP22211066

Anmeldetag

2. Dezember 2022

Veröffentlichung

6. August 2025

Erteilung

6. August 2025

Rechtsraum

EP

IPC

B29C65/02B29C65/00B29C35/02B31B70/74B29B13/02B29C71/02B31B50/62// B29L31/00B29K23/00B29K67/00B31B155/00B31B170/20

Abstract

The present disclosure refers to a method of manufacturing a strip (22) for sealing a laminated packaging material (16) for liquid food products (12), wherein a pre-manufactured strip (44) comprising a plurality of layers (34) made of polymer material is provided, said layers (34) comprising at least an inner surface layer (36), an outer surface layer (38) and center layer (40). In the method, at least one of said inner and outer surface layers (36; 38) is exposed to a heat treatment effecting that a degree of transparency (46) of the manufactured strip (22) is increased with regard to the degree of transparency (48) of the pre-manufactured strip (44).The present disclosure further refers to a strip (22) manufactured in the method and to a laminated packaging material (16) and a respective packaging container (10) comprising said strip (22).The present disclosure also refers to a respective device (42) to execute the method.

Anmelder

Firma

Tetra Laval Holdings & Finance S.A.

Land

🇨🇭 Schweiz

Fachgebiete