schrumpfkapseln

Schrumpfkapseln, also known as shrink capsules or shrink sleeves, are heat-shrinkable plastic materials used for sealing and decorative purposes. They are typically made from PVC (polyvinyl chloride), PET (polyethylene terephthalate), or OPS (oriented polystyrene) and are applied over the neck or cap of a container. When heat is applied, the capsule shrinks tightly around the container, creating a tamper-evident seal and often providing a finished, professional appearance.

The primary function of a schrumpfkapsel is to provide a tamper-evident seal. Once applied and shrunk, any attempt to remove or open the container will visibly break or tear the capsule, alerting the consumer to potential tampering. This is particularly important for food, beverage, pharmaceutical, and cosmetic products. Beyond security, schrumpfkapseln also serve as a decorative element. They can be printed with branding, product information, instructions, or intricate designs, enhancing the visual appeal of the packaging and offering a larger surface area for marketing compared to the label alone.

The application process involves placing the un-shrunk capsule over the container's neck, typically using automated machinery. A heat source, such as a heat tunnel or a heat gun, is then applied. The heat causes the material to shrink uniformly, conforming to the shape of the container. The choice of material depends on factors like the desired shrink ratio, clarity, and the type of container being sealed. Schrumpfkapseln are a versatile and cost-effective packaging solution widely adopted across various industries.