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Robust packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom

一种包装层压材料、层压材料的技术，应用在层压装置、包装、层压等方向，能够解决打开包装的能力限制、磨损、无法干净地切割等问题

Active Publication Date: 2012-05-23
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The inclusion of air can also lead to increased difficulty in tearing or penetrating the film consisting of the barrier layer and the polymer film in the opening or slit, resulting in limited ability to open the package and / or inability to cut cleanly when pierced, resulting in frayed border
[0016] All of these problems are exacerbated as the speed at which rolls of laminated packaging material are made from raw materials increases

Method used

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  • Robust packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom
  • Robust packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom
  • Robust packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom

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Embodiment Construction

[0048] refer to Figure 1a The packaging laminate 10a of the present invention comprises a core layer 11 which is a settable rigid but foldable paperboard or cardboard. The core layer has through-holes, openings or slots 11a for mounting opening devices on packs produced from the packaging laminate. On the side of the core layer 11 which belongs to the outer side of the package produced by lamination, that is to say the side facing outwards away from the filled food product, a first outer heat-sealable thermoplastic layer 12 is applied, which faces towards the core layer side. Liquid and moisture isolation is also provided. The coating weight of the outer thermoplastic layer is about 10-20, preferably 12-18 g / m 2 , in particular polyethylene such as low density polyethylene (LDPE) may be used.

[0049] The core layer 11 is laminated on its inner side facing the inside of the package produced from the laminate to an additional stabilizing paper layer 15 . The stabilizing pap...

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Abstract

A packaging laminate (10a) comprising a core layer of paper or carton (11) with through -going holes, openings or slits (11a), a first layer of heat sealable thermoplastic material applied on the outermost side of the packaging laminate (10a), a second layer of heat sealable thermoplastic material (13) applied on the other, innermost side of the packaging laminate (10a), one or more barrier layers (14) applied between the core layer (11) and the innermost thermoplastic layer (13), the thermoplastic material (12,13) and barrier layers (14) all being laminated to each other within the regions of said holes (Ha) to form a membrane of barrier and thermoplastic material layers. A method for manufacturing of the packaging laminate and a packaging container that is made from the packaging laminate.

Description

technical field [0001] The present invention relates to a packaging laminate comprising a core layer of paper or paperboard with through-holes, openings or slits, to which a first outermost layer of heat-sealable thermoplastic material is applied, applying A second innermost layer of heat-sealable thermoplastic material on the other side of the associated packaging laminate, one or more barrier layers applied between the associated core layer and the innermost thermoplastic layer, the thermoplastic material and the barrier layer Both extend over the entire laminate, including the area of ​​the through-holes, openings or slits of the core layer, and are laminated to each other in the area of ​​the associated holes to form the barrier layer and the film of the thermoplastic material layer. The invention also relates to a method for the production of said packaging laminate and to a packaging container made of said packaging laminate. Background technique [0002] Disposable p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/24B32B27/10
CPCB32B37/153B65D75/26B32B27/10B32B3/266B32B7/12B32B15/08B32B15/12B32B15/20B32B27/08B32B27/308B32B27/32B32B27/327B32B29/005B32B2255/12B32B2255/26B32B2255/28B32B2307/31B32B2307/50B32B2307/718B32B2307/7242B32B2307/7244B32B2307/7265B32B2439/70Y10T428/1359Y10T428/24331Y10T428/1303Y10T428/31895
Inventor 尼尔斯·托夫特奥克·佩尔松
Owner TETRA LAVAL HLDG & FINANCE SA
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