Method of manufacturing medicinal cold-forming composite aluminum foil

A composite aluminum foil, cold forming technology, applied in the direction of chemical instruments and methods, flexible coverings, lamination, etc., to achieve the effects of excellent chemical resistance, safety assurance, and no solvent odor

Active Publication Date: 2008-12-10
SHANGHAI HONGLI MEDICINAL PACKING MATERIAL
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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-

Method used

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  • Method of manufacturing medicinal cold-forming composite aluminum foil
  • 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, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0020] The medicinal cold-formed composite aluminum foil prepared by the present invention is used for the packaging of solids (tablets, capsules, granules, powders, etc.), and is a relatively high-grade packaging material at present, which can increase the shelf life of medicines 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 pharmaceutical cold-formed composite aluminum foil is less than 1000mm, and it can also be determined according to the needs of users.

[0022] The allowable error of the pharmaceutical cold-formed composite aluminum foil is: the width deviation is between ±1-1.5, the thickness error is contro...

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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 andinnocuity; 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 drugs, it has good processing performance and light texture, but pharmaceutical PVC has hidden safety hazards. First of all, it contains chlorine, which will be contaminated by chlorine in medicines with a long storage period, which will cause great hidden damage to human health. Secondly, medicinal PVC has a large amount of water vapor and oxygen permeation, which has a fatal impact on the stability of the quality of the drug. It greatly shortens the storage and guarantee period of the drug, and the safety of the drug is also reduced. Contents of the invention [0003] The technical prob...

Claims

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Application Information

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