With the advantages of 360-degree viewing angle, additional printing space, and tamper-resistant features, the high demand for shrink sleeves globally is growing at a CAGR of 5.5%. Due to this demand, various shrink films have appeared on the market, each with its specific composition and characteristics. Selecting the right film requires rigorous analysis of the project and may even depend on the environmental footprint the client wishes to leave. Below is a brief overview of the various shrink films available:
PVC (polyvinyl chloride), the most commonly used material for such applications, is a high-density film that shrinks in the low temperature range. It has good clarity and high impact strength with additional weather and abrasion resistance. The film begins to shrink between 122°F and 140°F with good shrink quality – typically between 40%-65%.
PETG (polyethylene terephthalate) is the most heat-resistant shrink sleeve material with high abrasion resistance and excellent clarity. The film begins to shrink between 158°F and 176°F, and the shrinkage is relatively high (up to about 80%).
OPS (Oriented Polystyrene) is a low density film that is softer to the touch and easier to squeeze than other shrink materials. It has the lowest film vertical shrinkage (up to 75%) and has the smallest machine direction (MD) shrinkage.
PLA (polylactic acid) is a biodegradable thermoplastic made from renewable resources. It is the most environmentally friendly film, requires less energy due to the low shrink initiation temperature requirement, and can shrink up to 72%. Although PLA is not as clear as other films, it is FDA-approved for direct food applications.