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Vacuum compression bag and manufacturing method thereof

A technology of vacuum compression bags and cycloolefins, applied in chemical instruments and methods, lamination, lamination devices, etc., can solve the problems of poor gas barrier performance, insufficient heat resistance, poor puncture resistance, etc., and achieve cold resistance Good results

Active Publication Date: 2016-01-20
NINGBO HUAFENG PACKAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional packaging film products generally have problems such as poor puncture resistance, poor gas barrier performance, and insufficient heat resistance.

Method used

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  • Vacuum compression bag and manufacturing method thereof
  • Vacuum compression bag and manufacturing method thereof

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these specific implementations. Those skilled in the art will realize that the present invention covers all alternatives, modifications and equivalents as may be included within the scope of the claims.

[0020] Mix the components of each layer of film in the mixer separately, melt and co-extrude, tape cast, cool, and obtain a multi-layer composite film by hot pressing; rewind and cut the multi-layer composite film, install a sealing zipper and vacuum Air extraction holes; thermally fused to form a vacuum compression bag.

[0021] Among them, the A layer in the multilayer composite film is polyethylene, the B layer is a dicyclopentadiene / ethylene copolymer, the C layer is polyethylene terephthalate, and the Y layer is a copolymer of propylene and ethylene. The thickness is 150 μm. The details are shown in Table 1.

[0022] Table 1 ...

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Abstract

The invention discloses a vacuum compression bag which is characterized by comprising a five-layer composite membrane of an AYBYC layer structure. The layers A, B and C in the layer structure are independently selected from polyethylene, cycloolefin / vinyl copolymer and polyethylene glycol terephthalate, the layer Y is a composite bonding layer and is an olefin polymer with the melting point lower than 130 DEG C, and the thickness of each layer is 10-50 micrometers. The bag has the advantages of being high in puncture resisting strength and good in gas barrier property and heat resistance.

Description

technical field [0001] The invention relates to a vacuum compression bag and its preparation method. Background technique [0002] my country is a big country in packaging manufacturing and consumption in the world, and the proportion of plastic packaging in the total output value of the packaging industry has exceeded 30%, becoming a new force in the packaging industry. In recent years, with the development of society and the improvement of people's living standards, advanced packaging products, especially plastic packaging related to food and human health development, have become more and more popular in the market, and the market prospect is very huge. In 2005, "National Medium- and Long-Term Science and Technology Development Plan (2006-2020)" (3) key areas and priority themes clearly put forward the requirement to develop advanced packaging technology and develop advanced packaging products. [0003] The working principle of the vacuum compression bag is to take out th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/10B32B27/04B32B27/08B32B27/32B32B27/30B32B27/36B32B37/15B32B37/08B32B37/06B32B37/10B65D65/40
CPCB32B7/10B32B27/08B32B27/30B32B27/32B32B27/36B32B37/06B32B37/08B32B37/10B32B37/153B32B2260/046B65D65/40
Inventor 陈亦锋鲁听陈红央劳梦斌邹佳沣陈锞锞
Owner NINGBO HUAFENG PACKAGE