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What is Stretch Film? (Everything You Need to Know)

Stretch film is a type of plastic film which stretches tightly around the items to hold them together. Stretch film is made from linear low-density polyethylene (LLDPE), which is a type of plastic. It is available in various thicknesses, ranging from thin films that are only a few micrometers thick to thicker films that are a few millimetres thick. The stretch film also applies by hand or machine. In this way, the item wraps tightly. The film is cut and then seal its ends.

Why is Stretch Film Useful?

It commonly uses for wrapping around pallets of goods to secure them for transport, shipping, and storage. Stretch film also uses for wrapping around individual items to keep them secure such as in the case of packaging fragile items. So it secures the items together. This stretch film uses in packaging and is available in a variety of thicknesses,  strengths, and lengths. This creates a tight seal that prevents the wrapped item from coming apart and it is rarely used packaging material.

Types of the Stretch film

1. Cast Stretch Film

Cast stretch film is the most common type of stretch film. It is made from linear low-density polyethylene (LLDPE) and is available in various thicknesses and widths. This type of stretch film is well known for its clarity, strength, and therefore tear resistance.

2. Blown Stretch Film

The blown stretch film uses high-density polythene and low-density polythene. so it is less common than cast stretch films. It is available in thinner gauges, therefore this kind of stretch film is famous for its good flexibility and elongation.

3. Cross-Linked Stretch Film

Cross-linked stretch film is made from linear low-density polyethylene. It chemically treats to create a stronger, more durable film. Therefore this type of stretch film uses in applications where high strength and puncture resistance require.

4. Pre-Stretch Film

The pre-stretch film is a cast stretch film. It treats with pre-stretched substances to increase its elongation. So this type of stretch film uses in applications where a high degree of stretch requires.

5. Machine Stretch Film

Machine stretch film is a cast or blown stretch film. It treats with other substances to increase its elongation. This type of stretch film uses in applications where a high degree of stretch requires.

Applications of Stretch Film in Packaging

  • Stretch film uses in many ways for wrapping the products on pallets. So it secures them for shipment.
  • The elastic properties of stretch film allow it to stretch around the products and pick them tightly in place, therefore it prevents them from shifting during transport.
  • Many of the food industry use stretch film to package fresh produce, meat, and cheese.
  • The stretch film’s moisture and oxygen barrier properties help to extend the shelf life of fresh foods.
  • The film’s elasticity allows it to stretch around corners and odd shapes.
  • The cling effect helps to keep the film in place. In this way, it secures the load, reduces shipping costs, and keeps products clean.

Advantages

  • Stretch film offers good protection against abrasion and UV light.
  • It is easy to apply and remove. So it has a wide range of uses.
  • Stretch film is relatively inexpensive.
  • It is very versatile and a variety of surfaces use this type of film.
  • It is very strong and durable.
  • The product is flexible, tough and has good transparency.
  • It is difficult to break by hand and has good self-adhesiveness.
  • It is applicable for various objects and surfaces and it is also usable for a long time.

Disadvantages

  • Stretch film can be difficult to work with if it is too sticky.
  • It is not breathable, so it can trap moisture and also cause condensation.
  • Stretch film is not recyclable.
  • The price of the product is relatively high.
  • It can be difficult to remove.
  • Environment easily affects this type of stretch film, therefore this film stores in a cool and dry place.

Conclusion

The most important part of choosing the best stretch film for your needs is to know your needs. Therefore knowing the size of the load, the type of stretch film, and the budget will help you choose the best product for your needs. To conclude, stretch film is a great solution for industrial packaging needs. It is cost-effective and provides great results. So different types of products and different industries use stretch film.

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