Laminated packaging materials and packaging containers made therefrom
A technology for packaging containers and food packaging, which is applied in the field of packaging containers for liquid food packaging, laminated packaging materials, and the manufacture of the laminated packaging materials, can solve the important properties of mechanical strength and packaging integrity, as well as material barrier performance damage, non-destructive too favorable
Active Publication Date: 2021-09-28
TETRA LAVAL HLDG & FINANCE SA
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- 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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Embodiment 1
[0212] Example 1: / / LDPE / 200g / m 2 Corrugated paper / LDPE / aluminum foil 6μm / EAA / blend LDPE + mLLDPE /
[0213] exist Image 6 , There is shown a metal layer / OTR of coating can be further bound to the metal of the barrier layer extrusion coating / lamination to the adhesive polymer (e.g., EAA) be improved. When the need to improve the barrier properties of the metal material, such effect is handy. Specific experiments behind this conclusion by using two layers of 1g / m 2 The PVOH coating 50g / m2 Thin paper and subsequently double coating PVOH on the metal coatings, metal coatings having OD (optical density) of about 2. When such a barrier layer was laminated to the coated paper and laminated to the LDPE layer, adjacent layers laminated on the inside and the LDPE and a blend of metallocene -LLDPE the laminate material, and 50% at 23 ℃ RH oxygen transmission rate becomes almost up to 10cc / m 2 24 hours, 1atm. When the lamination in the same manner, a metallization laye...
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Abstract
The present invention relates to a method of making a laminated cellulose-based liquid or semi-liquid food packaging material, wherein the laminated packaging material has a body material layer made of paper, cardboard or other cellulose-based material, the innermost heatable A sealing and liquid-tight thermoplastic polymer layer, the innermost polymer layer for direct contact with the packaged food product, a barrier layer laminate between the body layer and the innermost layer. The present invention also relates to a laminate packaging material obtained by this method and a packaging container for liquid food packaging, comprising or made from a laminate packaging material obtained by this method.
Description
Technical field [0001] The present invention relates to a coiled liquid or half liquid package having a barrier paper layer, and a method of manufacturing the laminating packaging material. [0002] Further, the present invention relates to a packaging container comprising a laminated packaging material or all of the laminated packaging material. In particular, the present invention relates to a packaging container for liquid food packaging comprising laminating packaging materials. Background technique [0003] Disposable packaging containers for liquid foods using disposable types of packaging containers are typically produced by packaging laminates based on cardboard or thick panels. One such a usually appearing packaging container with Tetra Brik Trademark is sold, mainly used in liquid foods (such as milk, juice, etc.), for sale for long-term environmental storage. This packaging material in this known packaging container is typically a laminate comprising a paper or a pape...
Claims
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IPC IPC(8): B32B27/32B32B29/00B32B27/10B32B29/08B32B5/02B32B5/18B32B29/02B32B27/34B32B7/12B65D65/40B65D85/72B32B7/022
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