Method for manufacturing laminated hd (high-density) paper with good oxygen-barrier properties, and hd paper obtained thereby

A performance, good technology, applied in the direction of cellulose plastic layered products, chemical instruments and methods, synthetic resin layered products, etc.
CN100551689CInactive Publication Date: 2009-10-21甫如嗨姆·纳塔·马格尼
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
甫如嗨姆·纳塔·马格尼
Publication Date
2009-10-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

Polyethylene applied to high-density paper where the surface of the paper is modified in order to have a surface energy as close as possible to polyethylene and thereby achieve properties as barrier material for packaging of food. The good barrier property is a result of crystallisation of polyethylene on the paper's surface.
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Description

technical field

[0001] The present invention relates to a barrier material for packaging, especially for food, and a method for producing such a barrier material with good oxygen barrier properties. Background technique

[0002] Nearly 4 / 5 food products are prone to lose and / or absorb gases, water vapour, taste, smell, etc. and therefore must be stored in a protected environment.

[0003] It is well known that oxygen has adverse effects on the taste, structure, color, and nutritional content of food, and direct contact with oxygen in particular can cause serious problems. In addition to this, oxygen promotes many well-known reactions affecting the shelf-life of foodstuffs, such as microbial growth, color changes, oxidation of lipids (malodor) and fruit decay. Therefore, such food must be protected against the oxygen content of the environment during storage, which in practice usually means that the shelf life of the food is determined by the rate of oxygen transfer through ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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