Tetra Laval Holdings & Finance S.a.

Patrick Duvander

Rolf Lasson

Hichem Bouraoui

Hichem T Bouraoui

Rickard Norenstam

Theo Louman

A laminated packaging material for fabrication into a container for a flowable food product is disclosed herein. The laminated packaging material has a fluted medium between a first layer and second layer. The fluted medium may have a flute density of 200 to 450 flutes per linear foot. The fluted medium may also have a flute height profile of 8 mils to 50 mils. The laminated packaging material may be fabricated into a gabletop carton or a parallelepiped container such as the TETRA BRIK.RTM. container. The laminated packaging material may have a barrier layer such as aluminum or another gas impermeable composition. The laminated packaging material provides substantial material savings due to the fluted medium.

Laminated packaging material having fluted medium

A gabletop carton for storing liquid, viscous and solid material includes a carton material stock formed of paperboard having at least an inner facing sheet, an outer facing sheet and a fluted medium fixedly positioned between the inner and outer facing sheets. The fluted medium is positioned between the inner and outer facing sheets so as to define substantially flat, inner and outer facing sheet surfaces. The carton material stock is formed to define a bottom wall, a plurality of upstanding side walls and a top portion having a gable configuration. The bottom wall is contiguous with the upstanding side walls which are defined by a plurality of side wall creases in the material stock. The bottom wall is defined by a plurality of bottom wall creases in the material stock that are generally transverse to the side wall creases. The top portion is formed by a plurality of top wall creases generally parallel to the bottom wall creases, and a plurality of angled gable creases formed in at least some of the side walls so as to form inner and outer gable walls. The fluted medium has a flute density of about 250 flutes per linear foot and is formed to define a plurality of columns that are oriented generally transverse to the side wall creases. The inner and outer facing sheets can include a polymeric material applied thereto.

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Lund, Sweden

Patrick Duvander