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Package laminate material and manufacturing method thereof

A technology for packaging laminated materials, containers, applied in the direction of lamination, packaging, wrapping paper, etc.

Inactive Publication Date: 2013-05-01
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an inherent drawback of these packages is that the product protection provided by said packages has a very limited duration and the product may deteriorate within a very short time after the filling time

Method used

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  • Package laminate material and manufacturing method thereof
  • Package laminate material and manufacturing method thereof
  • Package laminate material and manufacturing method thereof

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Embodiment Construction

[0030] It should be noted at the outset that the shown embodiments are only for explaining the invention, not for limiting it. It will be apparent to those skilled in the art that, under the guidance of the description, modifications and improvements can be made in various details of the illustrated and described embodiments without departing from the inventive concepts disclosed herein. Accordingly, the inventive concept is limited only by the appended claims.

[0031] FIG. 1 schematically shows a cross-section of a prior art packaging laminate bearing the general reference numeral 10 . An existing packaging laminate 10 has a paper or cardboard layer 11, on both sides of the paper or cardboard layer, outer liquid-tight polyolefin (eg polyethylene (PE)) coatings 12 and 13, One of the covering layers 13 is laminated to the paper or cardboard layer 11 by means of a lamination layer 14 pressed between the two first described layers 11 and 13 .

[0032] In order to enhance or su...

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Abstract

The present invention provides a packing laminated material of the soft bag packing container for liquid dairy products such as milk and yoghourt etc, comprising paper layer or board layer, having fluid-tight cover layers on the external of the paper layer or board layer, one of the cover layer laminates on the paper layer or board layer by means of extruding the laminating layer between the firstly descriptive two layers. In order to increase the light resistance characteristic, the paper layer or board layer has water soluble polymer, preferably the cover layer of polyvinyl alcohol, directly contact with the extruding layer lamination. The lamination material is produced and packed as the following method, wherein one side of the paper or board is coated with dispersoid of the water soluble polymer.the panel laminates on the prefabricate plastic film by extruding laminating layer between the panel and film after drying the cover layer. Final, the un-coated side of the lamination iscoated with fluid-tight plastic cover layer.

Description

technical field [0001] The present invention relates to a packaging laminate for flexible packaging containers for food, said packaging laminate comprising a paper or cardboard layer on both sides of the paper or cardboard layer with a liquid-tight layer of polyolefin , thereby manufacturing packaging containers by heat sealing of packaging laminates. More specifically, the present invention relates to a packaging laminate for flexible packaging containers especially for light-sensitive and oxygen-sensitive food products, such as milk and yoghurt. [0002] The invention also relates to a method for producing a packaging laminate of the type mentioned in the introduction. Background technique [0003] Packaging laminates of the type to which the present invention relates are known in the art and are used, for example, in commercial packaging containers for liquid dairy products such as milk and yoghurt. An example of such a commercial packaging container is Tetra Packagi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D65/40B65D65/02B65D65/16B32B27/10B32B27/18B32B38/18B32B7/10
Inventor 埃娃·埃伦贝里鲁内·舍林姆克尔·贝尔林马茨·本特马尔
Owner TETRA LAVAL HLDG & FINANCE SA