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Polyamide-aluminum cold-stamping formed medicine packaging composite film

A technology of cold stamping and polyamide, applied in the field of composite film for pharmaceutical packaging, which can solve problems such as separation layer and aluminum foil layer fracture, achieve the effect of reducing production cost, simple composite process, and suitable for popularization and use

Inactive Publication Date: 2013-08-14
SICHUAN HUILI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to provide a polyamide-aluminum cold stamping composite film for pharmaceutical packaging to solve the defect that the existing composite film for pharmaceutical packaging is prone to breakage or separation of the aluminum foil layer and to achieve the purpose of protecting medicines

Method used

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  • Polyamide-aluminum cold-stamping formed medicine packaging composite film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, a polyamide-aluminum cold stamping composite film for pharmaceutical packaging, including a polyamide layer 1, an aluminum foil layer 3 and a heat-sealing coating 4 arranged in sequence, between the polyamide layer 1 and the aluminum foil 3 layers A composite adhesive layer 2 is provided; the polyamide layer 1 made of PA6 is used as a protective layer to block external water vapor, oxygen, light and other factors that may cause drug quality deterioration.

Embodiment 2

[0019] Such as figure 1 As shown, the polyamide layer 1 and the aluminum foil layer 3 are composited together, and the heat-sealing coating 4 is 101-polyurethane adhesive, and the entire composite film and the substrate material are bonded by cold stamping, and it is also applicable to capsules, tablets, etc. cover packaging.

Embodiment 3

[0021] Such as figure 1 As shown, the thickness of the composite film is 20-25um, which can save materials while meeting high transparency and high barrier performance to water vapor, oxygen and light.

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Abstract

The invention discloses a polyamide-aluminum cold-stamping formed medicine packaging composite film. The composite film is characterized by sequentially comprising a polyamide layer, an aluminum foil layer and a heat seal coating layer, wherein a composite adhesive layer is arranged between the polyamide layer and the aluminum foil layer. Most of conventional packaging films adopt a twice dry-type compounding technology, so that in a cold stamping process, an aluminum foil layer is easy to break; and in a wet or strong-light environment, medicines are prone to oxidative deterioration because of a delamination phenomenon. The composite film is higher in isolation property to water steam, oxygen and light rays; the polyamide layer is made from PA6, is high in water absorption property and wet absorption property and can be recycled; and the heat seal coating layer is made of a double-component adhesive, has a non-drying property and a hot smelting property, and is high in bonding strength and suitable for packaging of health protection foods, medicines and other products with high requirements on high density and wet resistance.

Description

technical field [0001] The invention relates to a composite film for medicine packaging, in particular to a polyamide-aluminum cold stamping composite film for medicine packaging. Background technique [0002] In recent years, with the rapid development of my country's medical technology and the gradual improvement of the medical system, the expansion of the pharmaceutical industry has been accelerated. How to properly package, transport and store drugs is particularly important. Most of the existing composite films for pharmaceutical packaging use two dry lamination processes, the procedure is complicated, and the aluminum foil layer is prone to breakage during the cold stamping process. Moreover, the production cost of this composite film for pharmaceutical packaging is relatively high, and the scope of application is small. When encountering a humid environment containing more water vapor, oxygen, ultraviolet rays, etc., especially in the hot and humid weather in the sout...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/088B65D65/40
Inventor 张辉肖世才
Owner SICHUAN HUILI IND
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