The reason why the packing band is prone to breakage

Packing band, including PP (polypropylene) and PET (polyester) strapping, can be prone to breakage for several reasons. These reasons often relate to the material properties of the band, how it is applied, and environmental factors. Here are the main causes of packing band breakage:

1. Low Quality of Material

Weak Polymer Composition: If the packing band is made from low-quality or substandard polymers, such as poor-grade PP or PET, it may lack the strength and durability needed to withstand normal stress and tension. This can result in the strapping breaking easily under load.

Insufficient Additives: Sometimes, bands are made without necessary additives such as UV stabilizers, antioxidants, or plasticizers, which can improve the band’s resistance to environmental stress, such as heat and light. The lack of these additives can cause the band to become brittle or weak, making it more prone to breaking.

2. Improper Tension During Application

Excessive Tension: If the packing strap is stretched too much while being applied, it may break due to the excessive stress on the material. Applying too much tension when sealing boxes or securing items can cause the band to snap, especially if the strap is not designed to be stretched.

Inconsistent Tension: Uneven application of tension can also cause the band to be weaker in certain areas, leading to breakage at weak points. If some parts are too tight and others are too loose, the band can become stressed unevenly and break when subjected to pressure.

3. Environmental Factors

Temperature Extremes: Exposure to extreme temperatures, either too hot or too cold, can cause the packing band to degrade. At high temperatures, the band may become too soft and lose its adhesive properties, while at low temperatures, the packing band may become brittle and prone to cracking or snapping.

UV Exposure: Prolonged exposure to sunlight and UV radiation can weaken packing strap, especially if it is not UV-resistant. Over time, UV exposure breaks down the polymers in the band, causing it to lose its flexibility and strength, which leads to breakage.

4. Improper Storage Conditions

Moisture and Humidity: Excess moisture or high humidity can cause the packing strap to lose its adhesive properties and become brittle, making it more likely to tear or break.Packing Straps stored in damp or humid environments may absorb moisture, affecting the tape’s ability to adhere to surfaces properly and causing it to snap when applied.

Storage on Uneven Surfaces: Storing rolls of packing band on uneven surfaces can distort the strap roll and lead to uneven tension distribution. This can weaken the band and cause it to break more easily when used.

5. Overuse or Repeated Use

Repeated Application: Packing band that has already been used multiple times may have lost some of its strength, making it more prone to breaking. The adhesive can weaken with repeated handling, or the strap may stretch out and lose its original strength.

Aging of Adhesive: Over time, the adhesive on the packing band can degrade, particularly if the packing band is stored for extended periods before use. Aged adhesive can cause the strap to lose its effectiveness, and when pressure is applied, it might snap or fail to adhere properly.

6.Inadequate Tape Width or Thickness

Too Thin or Narrow: If the packing band is too thin or narrow for the intended application (e.g., sealing heavy boxes), it may not provide enough strength to hold up under stress. Thin bands are more likely to break when subjected to tension or pressure.

Inappropriate band for Load: Using a general-purpose band for heavy-duty applications or using the wrong type of strap (such as a non-reinforced band for heavy boxes) can lead to breakage. Heavy-duty applications require specialized, thicker, and more reinforced strap to withstand stress.