Home » Technical Support » Classification of Heat Shrink Wrap

1. PE shrink wrap is widely applicable to the assembly packaging of liquor, cans, mineral water, beverages, cloth and other products. It features good flexibility, impact resistance, tear resistance, not easily damaged, moisture proof, and large shrinkage.
2. PVC shrink film has high transparency, good gloss, high shrinkage, and other characteristics.
3. POF features high surface gloss, good toughness, high tear strength, uniform heat shrinkage and is suitable for automatic high-speed packaging, becoming the replacement of the traditional PVC heat shrink film. POF, co-extruded multilayer polyolefin heat shrinkable film, uses linear low density polyethylene as the middle layer (LLDPE) and polypropylene (PP) as the inside and outside layer. It is processed by three-extruder extruding, die molding, bubble blowing and other special workmanship.
4. OPS shrink film (orientated polystyrene) is a kind of environmentally friendly packaging materials, featuring high strength, large rigidity, stable shape, and good gloss and transparency. It comes with easy processing, easy coloring, good printing performance, and high printing resolution.
Due to such a high shrinkage ratio and strength, OPS film can tightly bind with different shapes. It is not only able to print out fine patterns, but also to meet the use of various novel packaging containers.
This kind of film is non-toxic, tasteless, oil resistant, and compliant with food hygiene standards. It allows designers to use noticeable colors, and realize 360° label design. The shrink label designed with vivid patterns produces an unexpected effect for sales of drinks and other commodities on the shelves.
5. PET heat-shrinkable polyester film
Characteristics: It is stable at room temperature and shrinks when heated. More than 70% heat shrinkage occurs in one direction.
Advantages:
(1) The film is transparent, reflecting the image of goods.
(2) It tightly bundles the packaged goods, avoiding scattering of goods.
(3) It is resistant to rain, moisture, and mildew.
(4) As it can not be recovered, it has a certain anti-counterfeiting function.
Applications: PET heat shrink film is commonly used in packaging of convenience food, beverage, electronic appliances, and metal products. Especially shrink label is the most important field of application. With the rapid development of PET beverage bottles, such as Coke, Sprite, juice and other drink bottles use PET shrink film for the matching heat seal label. Both belonging to polyester materials, they are environmentally friendly and easy to recycle.

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