Introduction to Pharmaceutical Packaging Materials

Pharmaceutical packaging materials refer to the materials used to manufacture packaging containers, decorative elements, printing, and transportation components that meet product‑packaging requirements. These include major packaging materials such as metals, plastics, glass, ceramics, paper, bamboo, wild mushrooms, natural fibers, synthetic fibers, and composite materials, as well as auxiliary materials like coatings, adhesives, tapes, decorative elements, and printing substrates.

Packaging material categories: blister film, co-extruded film, packaging film, packaging tape, plastic packaging tape, stretch wrap, PE stretch wrap, and other packaging materials.

Requirements for Pharmaceutical Packaging Materials

1. Possessing adequate mechanical properties, packaging materials must effectively protect the product; therefore, they should exhibit sufficient strength, toughness, and elasticity to withstand both static and dynamic factors such as pressure, impact, and vibration.

2. Barrier Properties: Depending on the specific requirements of the product packaging, the packaging material should provide an appropriate level of barrier against moisture, water vapor, gases, light, aromas, odors, and heat.

3. Good safety performance: the packaging material itself should have low toxicity to prevent product contamination and safeguard human health; it should also be non-corrosive and possess properties that deter insects, repel rodents, and inhibit microbial growth, thereby ensuring product safety.

4. Appropriate processing performance: Packaging materials should be suitable for processing and easy to form into various packaging containers; they should also lend themselves to mechanized and automated packaging operations, thereby supporting large-scale industrial production. Additionally, they should be compatible with printing and facilitate the application of packaging labels.

5. Good economic performance: packaging materials should be widely available, easy to source, and low-cost; post‑use packaging materials and containers should be readily recyclable or disposed of without polluting the environment or posing public health risks.

Classification of Pharmaceutical Packaging Materials

Class I pharmaceutical packaging materials refer to those packaging materials and containers that come into direct contact with and are directly used for pharmaceutical products.

Class II pharmaceutical packaging materials refer to those that come into direct contact with the drug but are easily washable; in practical use, they must be cleaned and then subjected to disinfection or sterilization.

Category III pharmaceutical packaging materials refer to all other pharmaceutical packaging materials and containers, excluding those in Categories I and II, that may directly affect the quality of the drug.

The classification catalog of pharmaceutical packaging materials is formulated and promulgated by the National Medical Products Administration.

Quality Management of Pharmaceutical Packaging Materials

The quality management department of a pharmaceutical packaging material manufacturer is responsible for quality control and inspection throughout the entire production process and is directly supervised by the enterprise’s principal. The quality management department shall be staffed with an adequate number of quality‑control and inspection personnel and shall be equipped with facilities, instruments, and equipment that are commensurate with the scale of production, the range of products, and the inspection requirements for pharmaceutical packaging materials.