Indeed, stretch film can secure pallets and maintain stability during transportation and storage. However, some of the top reasons for stretch film breaking. Now, I will take a deeper look at each of these reasons with you.
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Improper Tension Settings
One of the most common causes of stretch wrap film breaking is applying it with too much stress. Stretch wrappers often feature tension dials that must be properly adjusted based on criteria such as film type, load characteristics, and application requirements.
Too much tension might stretch and tear the film. Too little tension leads to insufficient load containment. Only proper tension extends the film’s lifespan and prevents breakage.
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Poor Film Selection
Another common breakage factor is not to select the appropriate film for the wrapper. Film parameters such as thickness, stretch ratio, and material composition must correspond to the load being wrapped and the wrapper machine.
Films with greater gauges or stretch ratios may be inappropriate for irregular or delicate items. Using unsuitable film types might cause the stretch film to break prematurely.
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Environmental Factors
Plastic film can become brittle in very cold temperatures. Similarly, very hot conditions can cause the film too soft and prone to puncturing. Stretch wrap should be stored in a cool, dry place away from direct sunlight. Improper storage can lead to raw material degradation, reducing its performance.
No matter what type of wrap you have from which manufacturer, the tear of stretch film is common. But if the tearing takes longer, the consequences will be smaller. Now I will introduce the strong performance of our 55-layer nano stretch film.
Key insights on tear time
When using stretch wrapping film, the film tear may reduce production speed and waste time. So it is important to choose robust film to wrap pallets. At the same time, if the film occurs the tear and the tear of the hole is contained when the next circle of wrap clings over it, that is justifiable. So, as an experienced pallet stretch film manufacturer, we will focus on puncture resistance and film tear time.
Many people look at tear force but ignore tear time. This is false. What is tear time?
Tear time refers to the period that it takes from a hole to a complete tear when subjected to a specific force. High tear resistance film requires more effort and time to tear and thus offers better protection for products. This means it is safe if the film contains tears within the wrapper’s next revolution. You can determine the speed of your wrapper machine for optimal wrapping.
The time it takes for a tear to propagate in stretch film can vary significantly based on the film’s material properties and the conditions under which it is used. Based on the specialized test machine ‘FPT750’, the tear time of the wrap film is 3-40 seconds. A film tears too easily may require more layers and lead to spoilage, wasting material, and increasing costs, Stretch films that tear too quickly can be frustrating to work with, as they may tear unintentionally during the wrapping process. It is more complicated to use machine stretch film to wrap pallets because you need to spend time and labor installing the film.
Factors influencing tear time
Film quality: Films that are poorly made or low material always tend to tear more easily, leading to increased downtime and waste.
Environmental Conditions: Factors such as temperature and humidity can impact the performance of stretch films, potentially leading to premature tearing during application.
Use method: You can set the tension based on stretch film performance. Improper tension settings increase the risk of tearing. Too much tension may overstretch the film, while too little can lead to inadequate load containment, both of which increase the risk of tears.
About how to test the tear time?
Yuandian applies FPT-750 to offer a wide range of test programs that enable realistic testing of tertiary packaging. This equipment is designed to simulate as accurately as possible the actual conditions in which a stretch film is used. With constant stretching speeds or at varying speeds, this test can maximize the process of using the film.
Conclusion
Proper use of stretch wrap film can make use of its features like wrap pallets and secure product transportation. Otherwise, improper methods can finally lead to frustrating breakage and downtime. Yuandian’s 55-layer nano stretch film has exceptional tear resistance and a long tear time. By using specialized equipment like the FPT-750, simulate the actual conditions to test the tear time of our films.
In summary, stretch films are ideal for packaging for businesses that are seeking a durable, cost-effective, and time-efficient solution. Visit our website for more information regarding our products and services and give us a call for all your packaging requirements.
