Hot Tack Testing measures the strength of heat-sealed packaging materials while they are still hot, ensuring that the seals can maintain integrity during high-speed packaging processes.
Hot Tack Testing is a critical method used to evaluate the seal strength of packaging materials immediately after heat sealing. This testing helps manufacturers assess the ability of packaging seals to hold while still hot, before they cool down to room temperature. It is especially important for high-speed packaging processes where materials are subjected to rapid handling soon after sealing.
In fast-paced industries such as food, pharmaceuticals, and consumer goods, packaging materials need to withstand mechanical stress immediately after sealing, particularly when still in a hot state. Weak or inadequate hot tack strength could result in compromised seals, leading to product contamination, leakage, or damage during transport and handling.
The Hot Tack Test involves sealing two layers of packaging film using a controlled heat sealer, which applies pressure and temperature for a specific time. While the seal is still hot, the film is pulled apart at a consistent speed, and the force required to separate the two layers is measured. This force represents the hot tack strength, or the seal’s ability to resist opening under stress when still hot.
Hot Tack Testing is widely used across industries that rely on sealed packaging materials:
Optimize your packaging processes with reliable Hot Tack Testing. Contact us to learn how we can help enhance the performance of your packaging seals.
