Packaging material of laminate type

Details Packaging material of laminate type Packaging material of laminate type

B - Operations, Transporting

32

B

154/133

B32B 27/10 (2006.01) B32B 27/28 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2027352

A flexible, laminated material for reforming into packages for contents of the type such as oxygen-and flavour-sensitive liquid foods, for example fruit juices. The material displays a carrier layer of paper or paper- board and a preferably extruded layer applied to one face of the carrier layer (corresponding to the inside of the finished package), this layer consisting of a mixture of polyethylene and ethylene vinyl alcohol copolymer. Since the barrier layer thus includes both a polar (the ethylene vinyl alcohol copolymer) and a non-polar (polyethylene) component, the material possesses barrier properties against both polar and non-polar flavour components, at the same time as the material moreover displays tightness properties vis-à-vis oxygen.

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