| 摘要 |
The disclosure relates to packaging containers of a packaging laminate which may be stored in ice, water or high air humidity with retained configurational stability and grip rigidity properties, as well as to use for storage of liquid foods in a cold storage medium containing liquid. The packaging laminate (10) consists of a fibre core layer (11) and an outside layer comprising a layer (12) of a plastic selected from a group consisting of polypropylene, HDPE and polyester. The above-mentioned plastic layer is preferably a biaxially oriented film. On the inside of the core layer, an additional, stability-increasing layer (16) may be applied, such as, for example, an aluminium foil. The retained superior grip stability of a packaging container made from the packaging laminate described with reference to the figure is believed to be a combination of factors such that the outer layer of the packaging container first has improved liquid barrier properties, secondly has greater thickness and thirdly has higher material rigidity in conventionally employed outer layers in packaging containers of the above-described type. In addition, the I-beam effect which occurs as a result of the rigid outside layer (12) and the rigid layer (16) on the inside of the core layer cooperating with the interjacent core layer (11) contributes to retaining configurational and grip stability in a damp or humid environment. |
