Stretch film also called stretch wrap, is a kind of transparent, flexible, and strong plastic film. As a new type of packaging material, it is rapidly rising in world packaging market.

Different from shrink film, stretch film can be stretched longitudinally and transversely without heating. At the same time, it can wrap the products and keep the package tension. This is a good idea for securing pallets during long-time transportation and storage.

Wrap film can be made of PVC, PE, EVA, LLDPE, and other materials. However, businesses tend to produce films from LLDPE nowadays.

Advantages of winding film as packaging material

1. When packing the same volume of goods, you can find the amount of film can be reduced by 1/3 compared with shrink film. The thickness of commercially available shrink film is about 0.04-0.05mm, and the film after shrinking is about 0.05-0.06mm based on data. However, the thickness of commercially available wrap film is 0.02-0.03mm, and the thickness of the film after packing is about 0.015-0.025mm.
2. Using the stretch film as packaging material, a large number of accessories (such as packing tape, bundling rope, corner board, buckle, etc.) can be eliminated during the bundling and packaging operation. This technology can optimize the packaging equipment, and save the cost.
3. The wrap film process can not use hot air fans, ovens, and other heating devices. It can improve the safety of the warehouse, especially at present when safety is everything.
4. Stretch wrap can tighten the goods as a whole, reducing the possibility of breakage, collapse, or loose package. After wrapping the pallet, the goods can be tilted to a maximum angle of 45.5. Furthermore, the good wrapped can be waterproof, dustproof, and highly transparent. Any people can easily distinguish the products due to the visual film. If you want to enhance the concealment of the product, you can choose the colored film. Lastly, wind film is non-toxic, odorless, and tasteless, which can meet the requirements of food hygiene. It can meet the requirements of food hygiene.

As an experienced stretch film manufacturer, understanding the yield point is crucial to showcasing the packaging solution’s core strengths. The yield point indicates the elastic limit of the material. As the film is stretched, the load increases rapidly, and when the yield point is exceeded, the film finally undergoes permanent deformation.

In this range, the stress-strain curve is generally flat. And then when the tensile continues to increase until it reaches the rupture point. Optimal performance is achieved by pre-stretching the film before it contacts the goods, allowing tensile force to distribute evenly across the film. Advanced and state-of-the-art film can achieve an optimal stretch rate of up to 400%.   

In addition to exceptional tensile properties, the film exhibits a good memory function for stretching and retraction. Memory function is a characteristic of polymer material. While shrink films rely on heat to retract, stretch films perform at room temperature, making them a safer and more versatile packaging solution.

Another notable feature is the self-cling of wrap film. The cling will wrap the pallets tightly for a long time without transferring adhesive residue to the packaged goods. The tackifier added in the manufacture is compatible with plastic and it will not be stuck to the packaged goods.

However, environmental factors such as temperature can influence the film’s cling performance. High temperatures may reduce self-adhesion, necessitating considerations for storage and application conditions to maintain optimal performance. 

Conclusion

All in all, wrap film has proven itself as an innovative and cost-effective packaging solution in the modern logistics industry. With its ability to reduce material usage, eliminate the need for heating devices, and enhance packaging safety and efficiency. This method offers unmatched benefits over traditional shrink film. By combining high tensile strength, excellent memory function, and safe self-cling properties, Yuandian stretch film delivers reliable and efficient packaging solutions for various industrial needs. 

Choosing Yuandian plastic film is a smart decision for companies that want to enhance their packaging operations, reduce costs, and support a greener planet. We have state-of-the-art machines such as WH and AMUT to process machine film and hand film. Contact us or click on our website to explore the specifications of our products and learn more about our offerings.