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Sealing cover film

A sealing cap and polyethylene layer technology, applied in sealing, closing, packaging, etc., can solve the problems of increasing packaging costs, reducing production efficiency, and high purchase price of zippers, achieving rapid production change, improving production efficiency, and avoiding high processing temperatures Effect

Active Publication Date: 2015-06-10
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are two problems, 1) the purchase price of the zipper itself is relatively high, which increases the packaging cost; 2) adding a zipper during the packaging process reduces the production efficiency
3) Zipper belt packaging is not suitable for the packaging of fragile foods such as potato chips, biscuits, and puffed foods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] by image 3 Shown:

[0036] The preparation process of the present invention is

[0037] a. PET printing process: printing on PET to make PET printing film;

[0038] b. The first composite process: composite PET printing film and aluminum foil to make PET / AL

[0039] Composite membrane

[0040] C. The second compounding process: Co-extrusion compounding PET / AL composite film with ethylene acrylic acid copolymer, bimodal polyethylene and composite polyethylene,

[0041] The composite polyethylene is a co-extrusion composite of the outer layer, Bostik, and ethylene acrylic acid copolymer;

[0042] The outer layer is composed of low-density polyethylene and linear low-density polyethylene, and the weight ratio of low-density polyethylene and linear low-density polyethylene is 1:3;

[0043] Such as figure 1 , 2 As shown, the composite film made by the present invention has a 12 μm PET layer 1, a 7 μm aluminum layer 2, a 12 μm ethylene acrylic acid copolymer layer 3, a 6 μm bimodal poly...

Embodiment 2

[0046] The excepted layer is composed of low-density polyethylene and linear low-density polyethylene, and the weight ratio of low-density polyethylene and linear low-density polyethylene is 1:1; the rest is the same as in Example 1.

[0047] The technical effects of Examples 1 and 2 are as follows:

[0048]

[0049] The extruded layer is composed of an ethylene acrylic acid copolymer layer and a bimodal polyethylene layer.

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PUM

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Abstract

The invention discloses a sealing cover film. The cover film comprises the components of, from outside to inside: a PET layer, an aluminum layer, an ethylene acrylic copolymer layer, a bimodal polyethylene layer, and a composite polyethylene layer. Compared with prior arts, the cover film provided by the invention has the characteristics that: (1) the film has good flavor maintaining performance, dampness inhibiting performance, and gas barrier performance; (2) the cover film is adapted to high-speed packaging; (3) the cover film is convenient to process, and can be subjected to fast product-change, such that the cover film can be adapted to productions with large and small orders; (4) the film has low cost and higher cost performance; and (5) the cover film has the unique internal layer design, and has a repeated opening and sealing function, such that rest contents can be well protected. The cover film provided by the invention can be widely applied in packaging of biscuits, jam, potato chips (bar), instant food, puffed food, snack food, and the like. The cover film is suitable for fast pace life of modern times, and assist in reducing the application of secondary packaging. In actural packaging processed, with the cover film, package yield can be effectively ensured, film material waste is low, production efficiency can be effectively improved, and cost can be reduced.

Description

Technical field [0001] The present invention belongs to packaging film, especially to sealing cover film. Background technique [0002] In recent years, with the development of the economy, people’s disposable income has also increased year by year, material life has been continuously enriched, and the food industry, which is closely related to people’s lives, has also developed rapidly. During the "Twelfth Five-Year Plan" period, the main goal of my country's food industry development is to solve the problem of food convenience, focusing on the development of various kinds of convenience foods, such as main and side-line convenience foods, Chinese and Western supporting fast food, student meals, quick-frozen food, and convenient semi-finished products Wait. With each step forward in the food industry, new requirements are placed on food packaging. [0003] Nowadays, the acceleration of people's life rhythm determines that convenience will be an irreversible trend in food developm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B15/08B32B27/30B65D53/00
Inventor 江继忠鲍祖本潘健张和平陈旭
Owner HUANGSHAN NOVEL