In the world of industrial packaging, the safety and stability of transport packaging are crucial to protecting goods from damage during transportation. To achieve this goal, it is also important to test the performance of stretch film. In this article, we will explore in depth the key properties of testing using FPT750, including breaking force, elongation at break, viscosity, deformation, elastic recovery, tension retention, and puncture resistance. These properties not only determine the performance of packaging materials but also impact their sustainability, cost-effectiveness, and overall quality.

What is Tensile Strength and Why is it important?

Tensile strength, also known as ultimate tensile strength, refers to the maximum stress a material can withstand before it begins to break or deform. For example, you are pulling a rubber band from both ends. The force you apply while stretching the rubber band to its snaps represents the ultimate tensile strength. Furthermore, tensile strength is usually measured in units of Pascals (Pa) or megapascals (MPa).

Packaging materials with higher tensile strength provide better protection, ensuring the packaged goods remain intact, and reducing the loss, especially during shipping.

Adhesion: Strengthening Packaging Integrity

Adhesion refers to the ability of packaging materials to bond to themselves or other surfaces without peeling, lifting, or delaminating. Of course, to further enhance the properties of stretch film, various additives are incorporated during manufacturing. In fact, stretch film has adequate cling itself to secure bond, ensuring that the load remains stable throughout the supply chain.

Elastic Recovery: Restoring Shape for Long-Term Durability

Elastic recovery is the ability of a stretch film to recover to its original shape after being stretched. With excellent elastic recovery, it prevents the film from loosening over time. It is expressed as a percentage. Stretch wrap film is typically stretched beyond its original length. Upon release, the film attempts to return to its initial state, exerting pressure that keeps the load tightly secured.  

Overall, high elastic recovery in stretch films protects the loads throughout their lifecycle.

Puncture Resistance: Safeguarding Against External Hazards

Puncture resistance also known as penetration resistance, refers to the maximum force or energy required to penetrate a material. High puncture resistance is ideal for materials that may encounter sharp items. In industrial packaging, High penetration resistance is essential for heavy-duty bags, aluminum foil bags, and plastic films. The products are often exposed to sharp objects or rough handling during storage and transportation.

Elongation at Break: Flexibility and Strength Combined

Elongation at break is the ratio of the initial and final lengths of the plastic material before it breaks. This property is crucial for packaging films that need to maintain flexibility while also offering a secure fit. For instance, plastic films with high elongation can expand and wrap tightly around irregularly shaped products, ensuring a snug, secure seal.

Conclusion

In the realm of industrial packaging, understanding and optimizing key performance metrics like tensile strength, adhesion, elastic recovery, puncture resistance, and elongation at break is pivotal for delivering superior packaging solutions. These properties not only ensure the safety and integrity of goods during transportation but also contribute to enhanced sustainability and cost-efficiency.

As a leading packaging manufacturer, our mission is to provide customers with packaging solutions that excel in performance and reliability. High-quality 55-layer nano stretch films, heavy-duty bags, and aluminum foil bags with optimized tensile strength and puncture resistance ensure robust protection against external hazards. Similarly, excellent adhesion and elastic recovery guarantee load stability, reducing the risk of product damage and loss.

We invite you to know how our innovative packaging products, tested and designed to meet stringent performance criteria, can add value to your operations. Contact us today or visit our website to discover more details.