
Introduction
Aluminum plastic composite film (APCF) is widely used in pharmaceutical packaging due to its superior barrier properties against moisture and oxygen, which help extend the shelf life of medications. However, the film's effectiveness can be compromised during processes such as forming, filling, sealing, and transportation. This document discusses the importance of testing the moisture barrier properties of APCF under simulated stress conditions.
Composition and Challenges
APCF consists of plastic film layers bonded to a central aluminum layer, which serves as the primary barrier against moisture vapor transmission. Flexing during processing can create pinholes or weaknesses in the aluminum layer, allowing moisture penetration and potential degradation of pharmaceuticals.
Testing Procedures
To ensure the integrity of the moisture barrier, water vapor permeability (WVP) tests are conducted on APCF samples after a flex durability test. The flex durability test, as per ASTM F392, simulates the flexing experienced by packaging materials using the Labthink C681M Flex Durability Tester. This involves twisting and horizontal motions for a specified duration under standard atmospheric conditions.
Following the flex durability test, the WVP of the stressed film samples is measured using the Labthink C360M Water Vapor Transmission Rate Tester. This test employs a gravimetric method (cup method) to measure the amount of water vapor permeating through the film over time, providing the final WVP result.
Importance of Testing
By measuring the WVP after the flex durability test, manufacturers can evaluate the effectiveness of APCF in maintaining its moisture barrier properties under real-world stresses. This ensures the film meets WVP requirements for pharmaceutical packaging and identifies potential weaknesses in the film's structure or manufacturing process.
Conclusion
Regular testing with these instruments ensures the ongoing quality and effectiveness of APCF in protecting pharmaceuticals from moisture-related degradation. As demand for functional packaging materials grows, testing methods continue to evolve for comprehensive evaluation. Labthink encourages collaboration with packaging industry companies for quality control.
Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Testing Moisture Barrier Properties of Aluminum Plastic Composite Film for Ensuring Pharmaceutical Protection Keywords: Aluminum plastic composite (APC) film, Moisture barrier property, Water vapor transmission rate (WVTR), Water vapor permeability (WVP), Flex durability test (ASTM F392), Labthink, C681M Flex Durability Tester, Water vapor transmission rate test, Labthink C360M Water Vapor Transmission Rate Tester, Gravimetric method (cup method) Aluminum plastic composite film (APCF) is a popular choice for pharmaceutical packaging due to its excellent barrier properties against moisture and oxygen. This helps extend the shelf life and maintain the quality of sensitive medications. However, the film's effectiveness can be compromised during various stages like forming, filling, sealing, and transportation. This article discusses the importance of testing the moisture barrier property of APC film after simulating these stresses.
Open the catalog to page 1Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 APCF typically consists of layers of plastic film bonded to a central aluminum layer. The aluminum acts as the primary barrier against moisture vapor transmission (MVTR). However, flexing the film during processing can create pinholes or weaknesses in the aluminum layer, allowing moisture to penetrate and potentially degrade the pharmaceuticals. To ensure the integrity of the moisture barrier, manufacturers and users perform water vapor permeability (WVP) tests on APC film samples. These tests are conducted after subjecting the...
Open the catalog to page 2Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 controlled environment, and the amount of water vapor permeating through the film over time is measured. The instrument automatically conducts the test and provides the final WVP result. By measuring the WVP after the flex durability test, manufacturers and users can evaluate the effectiveness of the APC film in maintaining its moisture barrier properties under real-world stresses; ensure the film meets the WVP requirements for specific pharmaceutical packaging applications; and identify any potential weaknesses in the film's structure...
Open the catalog to page 3Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!
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