Technical differences of shrink film

 
Global demand for shrink sleeves is expected to continue growing at a CAGR of 5.5%, with the benefits of 360-degree displays, additional print space, and tamper resistance. Due to this demand, there are many different shrink films on the market, each with their own specific ingredients and properties. Choosing the right film requires a rigorous analysis of the project and may even depend on the environmental footprint the client wishes to leave behind. Below is a brief overview of the various shrink films available:
 
PVC (polyvinyl chloride) is the most commonly used material for this type of application and is a high density film that shrinks in the low temperature range. It provides good clarity and provides high impact strength for additional weather and abrasion resistance. The film begins to shrink between 122°F and 140°F with good shrink quality—usually between 40%-65%.
 
PETG (polyethylene terephthalate) is the most heat-resistant shrink sleeve material with high abrasion resistance and excellent clarity. PETG shrink film begins to shrink between 158°F and 176°F and has a very high shrinkage rate (up to around 80%).
 
PET Shrink Film – Polyethylene terephthalate (PET) shrink film combines high density and strength into a high-quality option. It is the best abrasion resistant shrink film with heat resistant options, very high gloss and best shrink properties. The shrinkage rate of PET shrink film is higher than that of PVC shrink film and OPS shrink film.
 
OPS (Oriented Polystyrene) is a low density film with a softer hand and easier extrusion than other shrink materials. It offers the lowest vertical film 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 lower shrink onset temperature requirements, and can shrink up to 72%. Although PLA is less transparent than other films, it has FDA approval for direct food applications.
 
 
Posted in Default Category on May 18 2022 at 08:14 AM

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