Multilayered two-dimensional or tubular food casing or film

A multi-layer flake, food technology, applied in multi-layer casings, synthetic resin layered products, layered products, etc., can solve the problem of not providing moisture isolation shielding layer

Active Publication Date: 2012-09-05
库恩设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this article also does not provide a shield to keep moisture out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] According to the invention, there is proposed here a multi-layer sheet-like or tubular food casing or food film for food packaging, such as shrinkage, produced in particular by a nozzle blow-draw method and biaxially extended in a triple-foaming process. Films, sealable films, wound films, etc., for the first time feature a laminate structure comprising at least seven layers counted from the outside to the inside.

[0019] From the outside, the first layer contains PET as a layer component, the second layer contains an adhesion promoter, the third layer contains an ionomer, the fourth layer contains an adhesion promoter, the fifth layer contains EVOH, and the sixth layer contains an adhesion promoter , the seventh layer from the outside - also the innermost layer - comprises a polyolefin, preferably polyethylene.

[0020] EVOH advantageously forms the desired oxygen barrier. Ionomers ensure the desired mechanical properties. Polyester fibers ensure excellent optical p...

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PUM

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Abstract

The present invention proposes for the first time a two-dimensional or tubular food casing or film with an at least seven-layered laminated structure, which has an EVOH layer as an oxygen barrier and The present invention proposes for the first time a two-dimensional or tubular food casing or film with an at least seven-layered laminated structure, which has an EVOH layer as an oxygen barrier andin which the outer layer is formed by a high-temperature-resistant material such as PET, which apart from outstanding appearance-related properties also makes much higher further processing speeds (nuin which the outer layer is formed by a high-temperature-resistant material such as PET, which apart from outstanding appearance-related properties also makes much higher further processing speeds (numbers of cycles) possible than previously known.mbers of cycles) possible than previously known.

Description

technical field [0001] The present invention relates to a multi-layer sheet or tubular food casing or food film for food packaging, such as shrink bags, sealable films, roll-ups, produced by the nozzle blow-draw method and biaxially extended by the triple foaming method. film etc. Background technique [0002] In practice, such multilayer tubular or sheet packaging films are already in use in the form of 5 or 7-layer films. [0003] Thus, for example, EP 0 236 099 B2 discloses a multilayer tubular packaging film for food products with up to 7 layers - referred to as a packaging oxygen barrier film. However, the disclosed film suffers from the disadvantage that the outer layer consists of polyolefin (PO for short), which, while providing good moisture protection for the inner layer, does not have significantly improved performance compared to the inner layer (sealing layer). Temperature resistance. [0004] EP 0 476 836 B1 discusses a 6-layer packaging film which, in contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A22C13/00
CPCA22C2013/0063A22C2013/004A22C2013/0059B32B27/08A22C2013/0083A22C13/0013A22C2013/0053B32B27/32B32B27/36Y10T428/1324Y10T428/1328Y10T428/1341Y10T428/31725Y10T428/31786Y10T428/31797A22C13/00B32B1/08B32B27/12
Inventor J·希夫曼
Owner 库恩设备制造有限公司
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