Polyolefin shrink film is a kind of plastic film (abbreviated as POF shrink film). It is one of the three common types of shrink wrap (PE, PVC, POLYOLEFIN), POF shrink film, which has odorless characteristics and high transparency and has better softness and shrinkage performance than PVC after heating. This kind of shrink film does not contain chlorine, which is harmful to the human body, and it is approved by the FDA to be in direct contact with food. It is widely used for packaging food, product packaging, cosmetics, and other applications.
What is polyolefin?
Polyolefin is a plastic polymer in chemistry; it is made from ethylene, propylene, and other α-olefin monomers by the polymerization reaction, with good advantages compared with the traditional PVC shrink film: it has impact resistance, sound insulation, better shrinkage performance, and elasticity. It does not become more brittle during heating, does not produce odor, and does not require ventilation when heated; it is a plastic film widely used for packaging food, cosmetics, pharmaceuticals, adhesives, and so on.
Compared to polyolefin heat shrink film, PVC shrink film, when heated, will produce harmful chlorine and have a direct impact on the human body. The open heat process needs to open the window ventilation. The PVC shrink film will become brittle and hard after heating and easily rupture.
What are the characteristics of polyolefin shrink film?
Polyolefin shrink film is characterized by its softness and better shrinkage rate, which can be more than 70%. It is physically extraordinary, for example:
It does not release chlorine and is FDA-approved for direct food contact.
It can participate in recycling programs, and recycled polyolefin shrink film is greatly valued.
It does not produce a smell during shrinkage and does not need to be too concerned about ventilation.
Higher transparency, no contaminating ingredients, and non-toxic.
What types of polyolefin shrink film are available?
Polyolefin shrink film is a big family, and the polyolefin we use daily will be differentiated by thickness and width. There are many types of polyolefin to choose from. For example, centerfold polyolefin shrink wrap is a shrink film folded into a hollow tube to form a centerfold structure. It is generally used for packaging goods. For more robust protection, then cross-linked polyolefin shrink wrap can be used as it provides better strength and abrasion resistance and is more durable. Others are POF general shrink film, polyolefin high-performance shrink film, POF anti-fog shrink film, polyolefin low-temperature shrink film, and anti-static shrink film, which I will describe in detail next:
POF ordinary shrink film: this type of shrink film is mainly used on the packaging of products that do not require special features, but also the standard shrink film, this film does not have special features, but it can meet most of the needs, but it still has a lot of advantages over PVC shrink film, such as high transparency, high shrinkage rate. It can be used for packaging eggs, pizza, cola, plastic boxes, books, magazines, instant noodle packaging, and other applications.
Polyolefin Cross-linked Shrink Film: Manufacturing cross-linked shrink film can be done using either irradiation or chemical methods. The most common is irradiation cross-linking, which can use a high-energy B-ray electron beam. This cross-links the different bonds within the film. This has many advantages:
Higher transparency: Shrink film after cross-linking; the process can have higher openness. After irradiation, the haze is smaller, so the transparency is higher.
Improved puncture resistanCross-linked shrink film allows forhave a thinner film, which saves costs and increases producti. Itt it also improves puncture performance, reduces shrinkage time, providesvide better transparency and sealing performance. It is more suitable for assembly line sealing and sealing machines!
More extended footage per roll: Cross-linked polyolefin shrink film can be supplied as a thinner film, providing more extended footage per roll. This means that costs can be reduced, roll changeover downtime can be minimized, and productivity can be increased in a limited amount of time.
More robust sealing performance: Cross-linked shrink film has much-improved puncture resistance, more robust sealing performance, and excellent durability, which reduces package breakage and earns more consumer trust.
Polyolefin Low-Temperature Shrink Film: Polyolefin Low-Temperature Shrink Film is generally used in the packaging of chocolate and bakery products. It only needs a small amount of temperature to complete the shrinkage.
POF Anti-fog Shrink Film: This shrink film has been specially configured to help prevent the appearance of fog and water vapor and can be used for meats, fruits, and other foods that need to be kept fresh and frozen
What are the benefits of using POF shrink film?
POF shrink film is available in various thicknesses, lengths, and widths and can be customized by looking for a supplier; printable film is a good choice.
POF shrink film is more transparent and less prone to breakage and punctures, allowing for more reliable safety during transportation and storage. It is also very durable and has a durable finish.
POF shrink film is an excellent product because it can be used to package food, beverages, instant noodles, oils, bottles, and other products for a wide range of applications.
Polyolefin shrink film can increase the shopping experience for consumers because it is highly transparent. This allows you to see the appearance of the product and information more clearly and make better purchasing decisions. The film advantage also makes it easier for customers to store food. Over time, it can provide word of mouth for companies and brands.
POF shrink film protects products from outside air, moisture, dust, etc., and can maintain expiration dates.
What are the packaging formats for POF shrink film?
The width of POF shrink film is generally 90-1500mm
The thickness of POF shrink film is generally 45 -200 gauge; common ones are 45 gauge, 60 gauge, 75 gauge, and 100 gauge.
Single rolls and centre-folded rolls
Tube rolls
Bags (open and single opening type)