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Easy-to-uncover aluminum-plastic cover film for cosmetic cover ring as well as production technology and application

A technology for cosmetics and aluminum-plastic caps, applied in applications, chemical instruments and methods, household components, etc., can solve problems such as uneven bonding strength, achieve uniform bonding force, avoid melting deformation, and make openings difficult

Pending Publication Date: 2019-10-15
江阴苏达汇诚复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum foil sealing film in this patent document still has the problem of uneven bonding strength during the sealing process with the cover ring.

Method used

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  • Easy-to-uncover aluminum-plastic cover film for cosmetic cover ring as well as production technology and application

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Experimental program
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Effect test

preparation example Construction

[0038] The preparation method of the heat-sealing layer 3 in the present embodiment is as follows:

[0039] After the ethylene-propylene copolymer elastomer and PE are uniformly mixed in a mixer, a PE film is prepared by a film blowing method, and the heat-sealing layer 3 required in this embodiment is obtained.

[0040] The production process of the easy-to-remove aluminum-plastic cover film used for the cosmetic cover ring in this embodiment is as follows:

[0041] (A) Coating the adhesive on one side of the aluminum foil layer 2 on a dry lamination machine, drying the solvent to obtain an outer adhesive layer, and pressing the outer layer 1 by a composite roll to obtain a composite aluminum foil layer 2;

[0042] (B) After coating the adhesive again on the aluminum foil surface of the composite aluminum foil layer 2, the solvent is dried to obtain the outer adhesive layer, and the outer adhesive layer is facing the heat-sealing layer 3, and pressed by a composite roller to ob...

Embodiment 1

[0049] An easy-to-remove aluminum-plastic cover film for cosmetic cover rings in this embodiment includes an outer layer 1, an aluminum foil layer 2 and a heat-sealing layer 3, and the outer layer 1 and the heat-sealing layer 3 are respectively arranged on the The upper and lower sides of the aluminum foil layer 2, the outer layer 1 and the aluminum foil layer 2, and the aluminum foil layer 2 and the heat-sealing layer 3 are connected by an adhesive, and the outer layer 1 is 12 μm PET film layer, the aluminum foil layer 2 is 50 μm aluminum foil, the thickness of the heat-sealing layer 3 is 40 μm, and the adhesive is solvent-based polyurethane glue.

[0050] In this embodiment, the PET film is Hangzhou Dahua Plastic Industry Co., Ltd.; the aluminum foil layer 2 is an O-state aluminum foil, and the 8011 aluminum foil produced by Xiamen Xiashun Aluminum Foil Co., Ltd. is selected.

[0051] The heat-sealing layer 3 in the present embodiment is made up of 80wt% ethylene-propylene c...

Embodiment 2

[0061] An easy-to-remove aluminum-plastic cover film for cosmetic cover rings in this embodiment includes an outer layer 1, an aluminum foil layer 2 and a heat-sealing layer 3, and the outer layer 1 and the heat-sealing layer 3 are respectively arranged on the The upper and lower sides of the aluminum foil layer 2, the outer layer 1 and the aluminum foil layer 2, and the aluminum foil layer 2 and the heat-sealing layer 3 are connected by an adhesive, and the outer layer 1 is 30 μm PET film layer, the aluminum foil layer 2 is 40μm aluminum foil, the thickness of the heat-sealing layer 3 is 50μm, and the adhesive is solvent-based polyurethane glue.

[0062] In this embodiment, the PET film is Hangzhou Dahua Plastic Industry Co., Ltd.; the aluminum foil layer 2 is O-state aluminum foil, which is 8021 aluminum foil produced by Chinalco Aluminum Foil Co., Ltd.

[0063] The heat-sealing layer 3 is made up of 65wt% ethylene-propylene copolymer elastomer and 35wt% PE, and PE in the pr...

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Abstract

The invention relates to an easy-to-uncover aluminum-plastic cover film for a cosmetic cover ring. The aluminum-plastic cover film comprises an outer layer, an aluminum foil layer and a heat sealing layer, wherein the outer layer and the heat sealing layer are arranged on the upper side surface and the lower side surface of the aluminum foil layer respectively, the outer layer and the aluminum foil layer are connected through an adhesive, the aluminum foil layer and the heat sealing layer are connected through the adhesive, the outer layer is a PET (polyethylene terephthalate) thin film layerof 6-30 mu m, the aluminum foil layer is O-state aluminum foil of 6-50 mu m, the heat sealing layer is a PE (polyethylene) thin film layer of 30-50 mu m, and the PE thin film layer is prepared from 50wt%-90wt% of ethylene-propylene copolymer elastomers and 10wt%-50wt% of PE. The invention further relates to a production technology and an application of the easy-to-uncover aluminum-plastic cover film for the cosmetic cover ring. The easy-to-uncover aluminum-plastic cover film for the cosmetic cover ring is lower in heat sealing temperature, high in heat sealing strength and good in heat sealinguniformity when subjected to heat sealing with the PP (polypropylene) or PE cover ring, and the cosmetic cover ring is not easily opened under certain air pressure impact when the cosmetic cover ringand the easy-to-uncover aluminum-plastic cover film are composited and then sealed with other packaging bodies.

Description

technical field [0001] The invention relates to the technical field of composite packaging films, in particular to an easy-to-remove aluminum-plastic cover film for cosmetic cover rings, its production process and application. Background technique [0002] Due to the light weight and high plasticity of plastic products, plastic bottles are mostly used as containers in the field of cosmetic packaging. For cosmetics with high oiliness such as creams and milks, polyethylene or polypropylene plastic bottles are mostly used. In order to avoid the oxidation of active ingredients in creams and milks cosmetics, plastic bottles are usually sealed during the packaging production process and sealed. Sex has certain technical requirements. At present, aluminum-plastic film is mostly used in the market to package cream cosmetics with cover film. Since the cover film is only heat-sealed with the cover ring during packaging, the heat-sealing performance of the cover film is required to be...

Claims

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Application Information

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IPC IPC(8): B32B15/20B32B15/085B32B15/09B32B27/32B32B27/36B32B7/08B32B7/12B32B33/00B32B37/10B32B37/12B32B38/00B32B38/16B32B43/00B65D65/40
CPCB32B15/20B32B15/085B32B15/09B32B27/32B32B27/36B32B7/08B32B7/12B32B33/00B32B37/10B32B37/1284B32B38/0036B32B38/164B32B43/003B65D65/40B32B2255/10B32B2255/26B32B2307/558B32B2307/30B32B2553/00
Inventor 周婷梁昌盛晁承鹏
Owner 江阴苏达汇诚复合材料有限公司
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