Läpipainopakauksissa

Läpipainopakauksissa, known in English as blister packaging, is a method of product packaging that utilizes a formed plastic or paperboard cavity. This cavity is typically sealed with a backing material, such as aluminum foil, paper, or plastic film. The primary purpose of blister packaging is to protect the product from external elements like moisture, air, and physical damage, while also providing a tamper-evident seal.

The manufacturing process involves thermoforming a plastic sheet into a mold that creates the desired cavity shape. This is followed by filling the cavity with the product, which can range from pharmaceuticals and small electronics to toys and cosmetics. Finally, a lidding material is applied and sealed to the formed blister. This sealing process often involves heat and pressure to ensure a secure bond.

Blister packaging offers several advantages, including product visibility, which allows consumers to see the item before purchase. It also provides good protection and can be designed for easy opening and dispensing. The semi-rigid nature of the plastic provides structural integrity during transport and handling. For pharmaceuticals, blister packs are often preferred due to their ability to individually package and protect each dose, facilitating accurate administration and improving hygiene. The materials used can vary depending on the product's requirements for barrier properties and shelf life.