What plastics work for producing blister packaging?
Blister packaging is one of the most commonly used types of packaging in the world. Thanks to its unique characteristics, such as transparency, lightness, hygiene and being a perfect protective barrier, it is ideal for many types of products.
Using advanced thermoforming techniques allows flexible shaping of packaging from plastics, which makes it functional and aesthetic. The thermoforming technique consists in warming up thermoplastic film to the appropriate temperature and forming it into desired shapes, which is key for the effective production of the packaging. The final stage involves permanently bonding both components. This is done using high-frequency or constant-temperature welding machines. Blister packaging stand out for their durability and resistance to different types of mechanical damage.
Choosing the plastic for blister packaging
The first step in the production of blister packaging is the choice of the appropriate plastic. PET (Polyethylene terephthalate) and PVC (Polyvinyl chloride) are the most popular ones. PET is a plastic of high transparency and good barrier properties, which makes it popular in the production of blister packaging as it is famous for durability and resistance to abrasion. PVC, due to its versatility, is used to produce hard and yet flexible blister applications. There are also other materials, such as PET-G (type of PET with better forming properties), PET-GAG (type of PET with glycol) and PLA (polylactide) – a biodegradable plant-based plastic. The choice of the right plastic depends on a number of factors, such as requirements for mechanical and barrier properties, as well as environmental impact preferences.
Prototyping and certification
Each blister packaging should be properly designed and tested before commencing serial production. That is why prototyping is often a stage of the process. Companies specialising in the production of blister packaging, such as Zemat Technology Group offer their clients services of designing and prototyping tools for blister production. The importance of having certificates proving that production complies with safety standards, especially in the food and pharmaceutical industries, is also emphasised. The role of certificates confirming that production complies with safety standards is crucial to the reputation and confidence of clients in the company and its products.
Industrial Uses of Blister Packaging
Blisters are widely used in the industry as packaging that effectively protects the product while allowing for its aesthetic presentation. They can take various forms tailored to the specific needs of a particular industry. Zemat Technology Group, a manufacturer of modern industrial machines, offers solutions for creating such packaging tailored to individual customer needs.
