Method for manufacturing a partitioned paperboard food tray

Details Method for manufacturing a partitioned paperboard food tray Method for manufacturing a partitioned paperboard food tray

B - Operations, Transporting

29

C

B29C 49/24 (2006.01) B65D 3/24 (2006.01)

Patent

CA 2173004

A method for manufacturing a composite food packaging article having internal partitioning walls constructed from flat, machine formed paperboard. A pair of die-cut and folded paperboard blanks are inserted within the opposing cavities of a blow mold. A hot-flow parison between the cavities expands to structurally unitize the folded paper blank into a fluid impermeable tray vessel.

Méthode de fabrication d'un article d'emballage d'aliments composites possédant des parois de séparation interne réalisés avec du carton plat formé à la machine. Une paire de flans en carton découpés à la forme est insérée à l'intérieur de cavités opposées d'un moule par soufflage. Une paraison à air chaud installée entre les cavités se gonfle pour fardeler structurellement le flan de carton plié en un bac imperméable.

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