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Clean stripping aluminum foil easy opening cover

A technology of aluminum cover and heat-sealing film, applied in the field of flexible packaging, can solve the problem that the heat-sealing film cannot be peeled off cleanly and heat-sealed, and achieve the effect of small opening force

Inactive Publication Date: 2016-04-13
惠州宝柏包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems that the current heat-sealing film cannot be peeled cleanly and heat-sealed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An aluminum foil easy-to-open cover, which includes a metal cover with an extraction hole and an aluminum foil packaging film for blocking the extraction hole, and the aluminum foil packaging film is provided with a protective layer, a barrier layer and a heat-sealed Floor. The protective layer is a varnish layer with a thickness of 1um, the barrier layer is an aluminum foil with a thickness of 90um, and the heat-sealing layer is a heat-sealing layer with a thickness of 10um, and the heat-sealing layer is composed of materials with the following mass ratio, 80 % ethylene-acrylate copolymer, the melt index is 5g / min; 20% ethylene-vinyl acetate copolymer, the melt index is 10g / min.

[0021] The preparation method of the easy-to-remove aluminum foil cover:

[0022] 1. The metal cover steel plate material is made into a metal cover with an extraction hole.

[0023] 2. Cover one side of the barrier layer with a 10um heat-sealing layer film, pass through a cooling roll and ...

Embodiment 2

[0026] An aluminum foil easy-to-open cover, which includes a metal cover with an extraction hole and an aluminum foil packaging film for blocking the extraction hole, and the aluminum foil packaging film is provided with a protective layer, a barrier layer and a heat-sealed Floor. The protective layer is a varnish layer with a thickness of 2um, the barrier layer is an aluminum foil with a thickness of 70um, and the heat-sealing layer is a heat-sealing layer with a thickness of 15um, and the heat-sealing layer is composed of materials with the following mass ratio, 70 % ethylene-acrylate copolymer, the melt index is 8g / min; 30% ethylene-vinyl acetate copolymer, the melt index is 8g / min.

[0027] The preparation method of the easy-to-remove aluminum foil cover:

[0028] 1. The metal cover steel plate material is made into a metal cover with an extraction hole.

[0029] 2. Cover one side of the barrier layer with a 15um heat-sealing layer film, pass through a cooling roll and t...

Embodiment 3

[0032] An aluminum foil easy-to-open cover, which includes a metal cover with an extraction hole and an aluminum foil packaging film for blocking the extraction hole, and the aluminum foil packaging film is provided with a protective layer, a barrier layer and a heat-sealed Floor. The protective layer is a varnish layer with a thickness of 1um, the barrier layer is an aluminum foil with a thickness of 60um, and the heat-sealing layer is a heat-sealing layer with a thickness of 20um, and the heat-sealing layer is composed of materials with the following mass ratio, 90 % ethylene-acrylic acid ester copolymer, the melt index is 10g / min; 10% ethylene-vinyl acetate copolymer, the melt index is 5g / min.

[0033] The preparation method of the easy-to-remove aluminum foil cover:

[0034] 1. The metal cover steel plate material is made into a metal cover with an extraction hole.

[0035] 2. Cover one side of the barrier layer with a 20um heat-sealing layer film, pass through a cooling...

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Abstract

The invention discloses an easy opening heat sealing film. The easy opening heat sealing film is prepared by 70-90% of ethylene-acrylate copolymer and 10-30% of ethylene-vinyl acetate copolymer. The heat sealing film solves such defects as high heat sealing temperature and easy generation of dead sealing, and is low in opening force and free of rupture and burrs during opening.

Description

technical field [0001] The invention relates to the field of flexible packaging, in particular to a clean-peeling aluminum foil easy-to-open lid. Background technique [0002] The traditional canned milk powder packaging cap is composed of three parts: aluminum foil, ring iron, and iron cap. When opening, you must first pry off the iron cover, and then cut the aluminum foil layer to get the milk powder. During the opening process, it is easy to cause aluminum debris to fall into the milk powder, causing pollution; at the same time, the remaining corners after cutting are easy to cut fingers, which is not safe. Pollution and safety hazards are bound to cause inconvenience to consumers. [0003] In order to solve the above problems, Chinese patent document CN103264840 discloses a packaging cover for canned milk powder, which includes a metal cover with an extraction hole and an aluminum foil packaging film for blocking the extraction hole. A protective layer, a barrier laye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D77/20B32B15/082B32B33/00
Inventor 高虎欧阳龙邹燕红
Owner 惠州宝柏包装有限公司
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