Blister Packaging Problems and Solutions

2024年9月5日

Blister Packaging is a popular form of goods packing. This type mainly consists of a clear plastic film and a backing board. It is mainly made through thermoforming. When the plastic film, like PVC and PET, is heated and softened, it could be shaped into different cavities. Then the shape is fixed through cooling. The backing is usually made of cardboard, aluminum foil, or plastic. After placing the product inside, the blister is sealed with the backing by various techniques. They include heat sealing, gluing, etc.

Blister packaging is widely used in pharmaceuticals, food, electronics, and daily goods. This is mainly because it provides strong protection. Blister packing protects products from mechanical damage, moisture, and contamination. Moreover, the clear blister allows the product to be displayed clearly to consumers.

What Is Blister Packaging?

Different Types Of Blister Packaging

Because of the different size and shape of the packaged objects and different usage scenarios, there are different packaging methods and the main difference is the materials used and the sealing ways.

Aluminum-Plastic

Aluminum plastic packaging is used to heat PVC panels to form the shape for placing products, but sealed with aluminum foil. Usually, aluminum-plastic packaging is suitable for pharmaceuticals because it is easy to count and use, and has good sealing properties. The most important thing is that the packaging is non recyclable, which means that the removed medication cannot be packaged back in its original form.

Aluminum-Aluminum

For aluminum-aluminum packaging, both sides are aluminum foil, and there may be PVC sheets inside, so that consumers cannot see the internal items. The overall cost of aluminum-aluminum packaging is much higher than other packagings, and generally, manufacturers will not choose aluminum-aluminum packaging. For some medication that are light-sensitive, opaque aluminum foil could protect medications from light.