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《The Use of PVC Film in Pharmaceutical Packaging》

Introduction

In the field of pharmaceutical packaging, the choice of materials is crucial to ensure the safety, stability, and effectiveness of drugs. Polyvinyl chloride (PVC) film has emerged as a widely used material due to its unique properties and versatility. This article will explore the various applications of PVC film in pharmaceutical packaging, including blister packaging, composite blister packaging, and other aspects. We will discuss its advantages, challenges, and future prospects.

I. Properties of PVC Film

PVC film is a thermoplastic material that offers several desirable properties for pharmaceutical packaging.

1. Chemical Resistance

PVC film is highly resistant to a wide range of chemicals, including acids, alkalis, and solvents. This property makes it suitable for packaging drugs that may come into contact with various substances during storage and transportation.

2. Barrier Properties

PVC film provides a good barrier against moisture, oxygen, and light. This helps to protect drugs from degradation and maintain their potency.

3. Flexibility and Durability

PVC film is flexible and can be easily formed into various shapes and sizes. It is also durable and can withstand handling and transportation without damage.

4. Transparency

PVC film is transparent, allowing for easy inspection of the packaged drug. This is important for ensuring the quality and integrity of the product.

5. Cost-effectiveness

PVC film is relatively inexpensive compared to other packaging materials, making it an attractive option for pharmaceutical manufacturers.

II. Applications in Blister Packaging

Blister packaging is one of the most common applications of PVC film in pharmaceutical packaging.

1. Structure of Blister Packaging 

2. Advantages of Blister Packaging

• Protection: Blister packaging provides excellent protection for drugs by isolating them from external factors such as moisture, oxygen, and light.

• Easy to Use: Blister packaging is convenient for patients to use as it allows for easy removal of individual doses.

• Tamper-evident: Blister packaging can be designed to be tamper-evident, ensuring the safety and integrity of the drug.

• Visual Appeal: Blister packaging is often visually appealing, which can enhance the product's marketability.

3. Manufacturing Process 

1. Structure of Composite Blister Packaging

Composite blister packaging typically consists of a layer of PVC film, a layer of aluminum foil, and a layer of paperboard or other backing material. The layers are bonded together using adhesives or heat sealing.

2. Advantages of Composite Blister Packaging