Leading the Way in Hot Tack Testing with ASTM F1921 Standards

Cell Instruments, an innovator in materials testing solutions, proudly announces its commitment to excellence in hot tack testing with the adoption of the ASTM F1921 standards. This marks a significant stride in ensuring the reliability and integrity of packaging, particularly in fast-paced production lines.

 

Leading the Way in Hot Tack Testing with ASTM F1921 Standards

 

Cell Instruments, an innovator in materials testing solutions, proudly announces its commitment to excellence in hot tack testing with the adoption of the ASTM F1921 standards. This marks a significant stride in ensuring the reliability and integrity of packaging, particularly in fast-paced production lines.

Understanding ASTM F1921 Hot Tack Testing:

The ASTM F1921 standard focuses on evaluating the strength of heat seals formed between thermoplastic surfaces on flexible webs. This evaluation takes place immediately after the seal is created, emphasizing its significance before it cools down to room temperature.

Significance in Vertical Form-Fill-Seal (VFFS) Packaging:

 

 

The hot tack property gains importance in vertical form-fill-seal (VFFS) packaging processes, where minimal cooling time is available. In VFFS packaging, products are rapidly deposited into the bag right after the sealing bars open. The ability of the hot seal to endure substantial loads becomes critical, ensuring its strength and security. This is imperative to prevent potential product spillage or package failure. Therefore, assessing and optimizing the hot tack property is a pivotal step in maintaining the reliability and integrity of packaging in high-speed production lines.

The ASTM F1921 Hot Tack Test Process:

Sample Sealing:

A sample strip is sealed by applying pressure using two flat heated jaws, following specific conditions of temperature, contact time, and pressure.

Sample Withdrawal:

As the jaws of the sealing unit open, the sealed strip is automatically withdrawn from between the jaws, achieving this withdrawal at the end of a defined delay time, which can be adjusted and even set to zero. The withdrawal is achieved through the retraction of the grips.

 

Force Measurement:

As the grips move apart at a predetermined speed, the sealed sample undergoes elongation until it eventually fails. Throughout this elongation process, the hot tack tester measures the force required to sustain the seal until it reaches its breaking point.

Unlocking Precise and Reliable ASTM F1921 Testing with Cell Instruments’ HTT-02 Hot Tack Tester:

 

For companies seeking precision and reliability in hot tack testing, the Cell Instruments HTT-02 Hot Tack Tester is recommended, which provides a comprehensive solution for evaluating and optimizing hot tack properties in thermoplastic surfaces.

Stay ahead in the packaging industry with Cell Instruments—your trusted partner for innovative and standards-compliant materials testing solutions.