Maximize Sachet Shelf Life: The Heat Seal Strength Tests You Need

Sachet packaging, along with many other flexible packaging formats, relies on robust heat sealing for secure product containment. The heat seal strength test is vital for guaranteeing these seals are strong enough to protect the product effectively throughout its journey, from manufacturing to consumer use.



This essential test involves preparing a sealed sachet sample and precisely measuring the force required to peel or break the seal. This critical data empowers manufacturers to:

  • Ensure Seal Integrity: Consistently verify that seals will not fail prematurely, thereby preserving product quality and freshness.
  • Optimize Sealing Parameters: Precisely identify the ideal heat, pressure, and dwell time settings for creating consistently strong and reliable seals.
  • Reduce Production Waste: Significantly minimize the occurrence of leaks, bursts, or otherwise compromised sachets, leading to improved efficiency and reduced material loss.

Instruments for testing heat seal strength

Labthink C610H  Auto Tensile Tester has multiple independent test modes including tensile test, peel test, tearing test, heat seal test, tensile test at fixed elongation, and compression test, etc. at users’ choice. It also can be equipped with more than 100 grips for tests of more than 1000 materials, it is an excellent choice for performing heat seal strength test.


Labthink C630H Heat Seal Tester can be used to determine the optimal heatsealing parameters including dwell time, sealing pressure and sealing temperature for plastic films, flexible composite films, plastic coated paper and other heat-sealable films.



Labthink C630H Heat Seal Tester has five sets (upper and lower) of sealing jaws and can test 5 groups of specimen tests at one time, helps the user to obtain heat sealing parameters of the specimens accurately and efficiently

C660B Leak and Seal Strength Tester can be used for detecting the leakage in sealed packages.




Test principle of the C660B Leak and Seal Strength Tester is as follow: firstly submerge the specimen in the water in the vacuum chamber and then evacuate the vacuum chamber to form differential pressure between the inside and outside of specimen. The seal property can be obtained by observing the steady progression of bubbles from the specimen or observing how the specimen expands and restores to its original shape after vacuum release. 

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website https://en.labthink.com/ to learn more, or contact us via trade.en@labthink.com.

 

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