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Method of manufacturing medicinal cold-forming composite aluminum foil

A composite aluminum foil, cold forming technology, applied in chemical instruments and methods, flexible covering, lamination, etc., to achieve the effect of no peeling off, no solvent odor, and safety guarantee

Active Publication Date: 2013-03-13
SHANGHAI HONGLI MEDICINAL PACKING MATERIAL
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a preparation method of a five-toxic and environment-friendly pharmaceutical cold-formed composite aluminum foil, so as to solve the shortcomings of the existing PVC pharmaceutical blister

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  • Method of manufacturing medicinal cold-forming composite aluminum foil
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Embodiment Construction

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further described with reference to specific embodiments.

[0020] The medicinal cold-formed composite aluminum foil prepared by the invention is used for the packaging of solids (tablets, capsules, granules, powders, etc.). It is currently a higher-end packaging material that can increase the shelf life of drugs to 3 -5 years. See the specific structure figure 2 ,

[0021] The thickness of the nylon PA layer is 25 μm, and the thickness of the aluminum foil is 45-50 μm. The width of the medicinal cold-formed composite aluminum foil is less than 1000mm, and it can also be determined according to the needs of the user. The outer diameter of the roll is less than 40mm, or it can be determined according to the needs of the user.

[0022] The allowable error of the medicinal cold-formed composite aluminum foil is: the width d...

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Abstract

The invention relates to a preparation method for a medical cold-forming compound aluminum foil. The first compounding step of the method is adopting a bond to carry out compounding on a PA film and an aluminum foil one surface of which is coated with a bottom sizing agent to obtain a compound film I; the second compounding step of the method is using the bond to carry out compounding on the compound film I obtained in the first step and the PVC of an inner layer and obtain a compound film II; finally curing the compound film II is carried out to obtain the medical forming compound aluminum foil. The erichsen number of the medical cold-forming compound aluminum foil prepared by the invention is more than or equal to 10mm and the thickness is 0.1mm. Besides, the anti-chemical performance is excellent. The medical cold-forming compound aluminum foil prepared by the invention completely solves the defects similar to those of the prior medical compound aluminum foils and is prepared through a reasonable production technique by utilizing the environment-protective materials like nylon (PA), aluminum foil, PVC, bond, etc. High barrier materials are adopted by the invention; therefore, the transmittance of hydrosphere and oxygen is almost zero; the preparation method for a medical cold-forming compound aluminum foil has the largest characteristics of high barrier property, safety and innocuity; the safety of the medicine is essentially ensured.

Description

Technical field [0001] The invention relates to a preparation method of a medicine packaging material, in particular to a preparation method of a non-toxic and environment-friendly medicinal cold-formed composite aluminum foil. Background technique [0002] Pharmaceutical blister packaging and PVC (polyvinyl chloride) have existed in my country for many years. As a material for packaging medicines, it has good processing properties and lightweight texture, but pharmaceutical PVC has hidden safety hazards. First of all, it contains chlorine, and some drugs with a long storage period will be contaminated by chlorine, which will bring great hidden damage to human health. Secondly, medicinal PVC has a large permeability of water vapor and oxygen, which has a fatal effect on the stability of drug quality. It greatly shortens the storage and guarantee period of drugs, and the safety of drugs is also reduced. Summary of the invention [0003] The technical problem to be solved by the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/02B32B37/12B32B38/18B32B15/08B32B7/12B65D65/40
Inventor 池学怀
Owner SHANGHAI HONGLI MEDICINAL PACKING MATERIAL
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