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Laminated packaging material, packaging containers manufactured therefrom

A technology for packaging materials and packaging containers, applied in the field of packaging containers for liquid food packaging, laminated packaging materials, and the manufacture of such laminated packaging materials, which can solve the less favorable, important properties of mechanical strength and packaging integrity, and material barriers Performance impairment and other issues

Active Publication Date: 2018-07-17
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It often results in compromises of important attributes of mechanical strength and package integrity, as well as material barrier properties, and was previously considered a less favorable way forward

Method used

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  • Laminated packaging material, packaging containers manufactured therefrom
  • Laminated packaging material, packaging containers manufactured therefrom
  • Laminated packaging material, packaging containers manufactured therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0212] Example 1: / / LDPE / 200g / m 2 Corrugated paper / LDPE / aluminum foil 6μm / EAA / blend LDPE+mLLDPE /

[0213] exist Figure 6 , it is shown that OTR of metallized layers / coatings can be further improved in combination with extrusion coating / lamination of metallized barrier layers onto adhesive polymers such as EAA. Such effects of course come in handy when the barrier properties of metallized materials need to be improved. The specific experiment behind this conclusion is by using two layers of 1g / m 2 PVOH coating of 50 g / m2 thin dual phase paper followed by a metallized coating on PVOH, the metallized coating has an OD (optical density) of about 2. When such a barrier coated paper is laminated to the laminate and laminated to the adjacent layer of the LDPE laminate and the blend of LDPE and metallocene-LLDPE on the inner side, at 23°C and 50% RH oxygen transmission rate becomes almost as high as 10cc / m 2 , 24 hours, 1atm. When laminated in the same way, the metallized layer...

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PUM

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Abstract

The present invention relates to a method for manufacturing of a laminated cellulose-based liquid or semi-liquid food packaging material, wherein the laminated packaging material has a bulk material layer of paper, paperboard or other cellulose-based material, an innermost, heat sealable and liquid-tight layer of a thermoplastic polymer, the innermost polymer layer intended to be in direct contactwith the packaged food product, a barrier layer laminated between the bulk layer and the innermost layer. The invention further relates the laminated packaging materials obtained by the method and toa packaging container for liquid food packaging, comprising the laminated packaging material or being made from the laminated packaging material obtained by the method.

Description

technical field [0001] The present invention relates to a laminated liquid or semi-liquid packaging material having a barrier paper layer and to a method for producing the laminated packaging material. [0002] Furthermore, the invention relates to a packaging container comprising or entirely manufactured from a laminated packaging material. In particular, the present invention relates to packaging containers for liquid food packaging comprising laminated packaging material. Background technique [0003] Single-use disposable type packaging containers for liquid food products are usually produced from paperboard or cardboard based packaging laminates. One such commonly occurring packaging container is the Tetra Brik Sold under the trademark, mainly used for aseptic packaging of liquid food (such as milk, juice, etc.), sold for long-term environmental storage. The packaging material in such known packaging containers is generally a laminate comprising a main layer of pape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/18B32B5/20B32B5/26B32B7/02B32B7/04B32B7/12B32B15/08B32B15/082B32B15/085B32B15/088B32B15/09B32B23/00B32B23/06B32B23/08B32B27/08B32B27/10B32B27/30B32B27/32B32B27/34B32B27/36B32B29/00B32B29/06B32B29/08B65D65/40B65D85/72B32B23/04B32B27/12B32B29/02B32B1/00B32B7/022
CPCB32B5/18B32B5/20B32B5/26B32B7/04B32B7/12B32B15/08B32B15/082B32B15/085B32B15/088B32B15/09B32B23/00B32B23/06B32B23/08B32B27/08B32B27/12B32B27/304B32B27/306B32B27/32B32B27/325B32B27/327B32B27/34B32B27/36B32B29/00B32B29/002B32B29/005B32B29/02B32B29/06B32B29/08B65D5/746B65D15/08B65D5/065B65D5/067B32B2250/26B32B2266/02B32B2307/31B32B2307/402B32B2307/4023B32B2307/4026B32B2307/41B32B2307/50B32B2307/514B32B2307/516B32B2307/518B32B2307/538B32B2307/718B32B2307/72B32B2307/724B32B2307/7242B32B2307/7244B32B2307/726B32B2307/7265B32B2307/75B32B2439/00B32B2439/40B32B2439/62B32B2439/70B32B23/048B32B2266/00B32B23/046B32B2250/00B32B27/10B32B7/022B65D65/40B32B37/12B32B37/182B32B2255/12B32B2255/205B32B2439/60B65D85/72
Inventor 尼尔斯·托夫特乌尔夫·尼曼彼得·弗里斯克阿兰·科洛彼得·奥赫曼马茨·阿尓登
Owner TETRA LAVAL HLDG & FINANCE SA
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