Why is Hot Tack Test Important? | Enhancing Package Efficiency

The evaluation of packaging materials hinges on critical parameters such as hot tack and ultimate strength. In packaging quality testing, the hot tack tester plays a pivotal role in assessing the hot sealing performance, a key factor in determining packaging efficiency. Hot tack testing play an indispensable role it plays in optimizing the heat-sealing process.

Hot Tack and Ultimate Strength

1. Hot tack is a crucial parameter utilized to assess the strength of peeling the heat-sealed portion immediately after sealing, prior to cooling.
2. Ultimate strength is employed to gauge the strength of the heat-sealed parts post cooling. These parameters exhibit material-specific variations, making their accurate application instrumental in material selection and filling efficiency.

Hot Tack Testing Application

Today, form-fill-seal machines are frequently used for flexible packaging in areas such as food, pharmaceuticals, and cosmetics. In these filling lines, flexible packaging is manufactured and filled simultaneously. The filling method is basically to fill the product into the package from a certain height. The drop causes a strong impact on the bottom of the package. If the bottom cannot withstand the impact, the bottom will crack – package break. It affects cleanliness and filling efficiency.

Hot Tack’s Impact on Packaging Efficiency:

In filling lines, the time between the manufacture of the package heat seal and the filling of the product is so short that it is almost impossible to cool the heat-sealed components in such a short time. The maximum visible resistance does not apply to this example. Hot tack must be used. As we all know, optimizing the heat-sealing process is an effective way to shorten packaging time. Hot tack tests will help manufacturers choose the optimal heat-sealing parameters.

Hot tack directly affects the filling efficiency and the rupture rate of the bag. Heat seal performance is often used to indicate the containment capacity of materials. Make sure heat seals do not leak during shipping, storage, and display. It is the premise to realize the function of packaging materials.

CELTEC Hot Tack Testers:

The CELTEC HTT-01 horizontal hot tack tester and HTT-02 vertical hot tack tester can be used for above application. The two testers are based on ASTM F1921 standard. User can adjust heat-sealing time, cooling time, heat-sealing temperature and heat-sealing pressure according to requirement.

HTT-01 Hot Tack Tester

• Sealing Temp. Ambient~250℃
• Temp Accuracy ±0.2℃
• Dwell Time 0.1~9999s(Heat Seal )
• Dwell Time 0.1~9999s(Hot Tack )
• Sealing Pressure 0.15MPa~0.7MPa
• Sealing Jaws 50mmx10mm Teflon Coated
• Jaws Heating Double Heating
• Load Cell 200N(Optional:30N50N100N, etc)
• Accuracy 0.5 F.S.
• Resolution 0.01N

HTT-02 Hot Tack Tester

• Sealing Temp. Ambient~250℃
• Temp Accuracy ±0.2℃
• Dwell Time 0.1~9999s(Heat Seal )
• Dwell Time 0.1~9999s(Hot Tack )
• Sealing Pressure 0.15MPa~0.7MPa
• Sealing Jaws 50mmx10mm Teflon Coated
• Jaws Heating Double Heating
• Load Cell 200N(Optional:30N50N100N, etc)
• Accuracy 0.5 F.S.
• Resolution 0.01N

Hot tack performance is paramount in the packaging industry. The CELTEC HTT-01 and HTT-02 hot tack testers provide a robust solution for manufacturers across various industries, ensuring the selection of optimal heat-sealing parameters. As a result, the enhanced packaging efficiency and reduced risk of rupture make these hot tack testers indispensable tools in the pursuit of packaging excellence.

For more details about Hot Tack Tester please contact:

Email: yang@celtec.cn
WeChat/WhatsApp: +86 18560733670