Testador de hot tack HTT-02

The HTT-02 Hot Tack Tester is a specialized instrument designed to measure the hot tack strength of heat-sealed materials. It evaluates the ability of heat seals to resist forces that attempt to separate them while still in a hot state. This property is particularly important in packaging applications where heat-sealed bags or pouches need to maintain their integrity under stress immediately after sealing. The tester is compliant with ASTM F1921, ensuring consistent and reliable results.

Applications of the HTT-02 Hot Tack Tester

Hot tack testing is critical in industries that use heat seals for packaging, such as:

• Food Packaging: For applications like snack bags, frozen food pouches, and coffee bags, where seals must withstand high forces during packaging.
• Pharmaceutical Packaging: Ensures the integrity of heat-sealed pouches used for medical devices, blister packs, and sterile packaging.
• Industrial and Consumer Product Packaging: Testing packaging materials such as adhesives, chemicals, and heavy-duty bags.
• Textiles and Electronics: Validates the reliability of packaging for sensitive components and products.

The Testador de hot tack HTT-02 is perfect for ensuring the performance of heat-sealed packaging in vertical form-fill-seal (VFFS) processes, where seals must hold up to mechanical stress before cooling fully.

Significance of Hot Tack Property in Packaging

Hot tack is a crucial factor in ensuring that heat seals remain intact immediately after sealing, even in the presence of external forces. In vertical form-fill-seal packaging systems, there is often no cooling time between the sealing process and the insertion of products. The hot tack strength of a package determines whether it can handle the weight and pressure of the contents without tearing or opening prematurely. This is particularly important when packaging heavy or liquid-filled products, as the packaging must resist deformation during processing and shipping.

Overview of ASTM F1921

ASTM F1921 is the standard test method for measuring the hot tack strength of thermoplastic materials. This test evaluates the ability of heat seals to resist separation when subjected to mechanical forces immediately after sealing. The standard defines two test methods:

• Method A: Involves measuring the hot tack strength immediately after the heat seal is formed.
• Method B: Measures the seal strength after the sample is allowed to cool under controlled conditions.

Both methods provide critical data for assessing the reliability and performance of heat seals in a wide range of packaging materials.

Hot Tack Test Method

The hot tack testing process involves sealing a sample strip between two heated jaws, applying pressure, and subjecting the sample to a controlled environment. The process includes:

1. Sample Preparation: The sample is prepared and conditioned according to ASTM F1921 specifications.
2. Test Execution: The sample is sealed between two heated jaws at a set temperature and pressure. The dwell time (contact time) is adjustable, ranging from 0.1 to 9999 seconds for both heat seal and hot tack tests.
3. Measurement: The hot tack force, which is the strength of the seal while it is still hot, is measured during the test. The test can be repeated with varying temperatures, pressure, and dwell times to determine the optimal sealing conditions.

Key Testing Parameters:

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
Power	220V, 50 HZ

Technical Features of the HTT-02 Hot Tack Tester

• PLC-Controlled: Provides industrial-level stability and precision in testing.
• User-Friendly HMI: The 7-inch touch screen interface allows for easy operation and adjustments.
• Compliance with ASTM F1921: Supports both Method A and Method B hot tack testing, ensuring your tests are in line with industry standards.
• Advanced Temperature Control: P.I.D. (Proportional-Integral-Derivative) control ensures precise temperature management for reliable and repeatable results.
• Durable Construction: The aluminum-encapsulated sealing jaws are designed for long-term durability and performance.
• Safety Features: Auto zeroing, overload protection, and over-travel protection ensure safe operation.
• Data Management: RS232 port and optional software allow for advanced data collection and analysis.

Benefits of Using the HTT-02 Hot Tack Tester

• Optimized Packaging Performance: Ensures that heat seals can withstand mechanical stress immediately after sealing, reducing product failures.
• Meets ASTM F1921 Compliance: Provides reliable results that are fully compliant with the ASTM F1921 standard, ensuring consistent testing across different applications.
• Versatility: Ideal for a wide range of materials and packaging types, from food and pharmaceuticals to industrial and consumer products.
• Improved Quality Control: Helps manufacturers identify weak seals and optimize packaging processes, enhancing product protection and reducing waste.

Customization and Automation Services

At Cell Instruments, we understand that every testing environment is unique. We offer customized solutions for specific testing needs, and our automation capabilities help enhance testing efficiency for high-volume production lines. Whether you need unique load cell configurations or advanced automation integration, we are committed to providing tailored solutions that meet your exact specifications.

The HTT-02 Hot Tack Tester is a critical tool for ensuring that heat-sealed packaging performs reliably under real-world conditions. Whether for food, pharmaceuticals, or industrial packaging, this tester offers precise control over the testing process, making it an invaluable asset for quality assurance and product integrity.

FAQ Section

1. What is a hot tack tester used for?
   A hot tack tester measures the strength of heat seals immediately after sealing, ensuring they can withstand handling stresses in packaging processes.
2. Why is hot tack important in packaging?
   Hot tack ensures that heat seals remain intact during packaging, particularly in vertical form-fill and seal processes where heavy contents are involved.
3. What is ASTM F1921, and why is it important?
   ASTM F1921 is a standard that outlines methods for measuring the hot tack strength of thermoplastic materials, critical for maintaining seal integrity.
4. What materials can be tested with the HTT-02 Hot Tack Tester?
   It is suitable for testing various thermoplastic films, laminates, and heat-sealable packaging materials.
5. Can the HTT-02 Hot Tack Tester be customized?
   Yes, it offers customizable load cells, test speeds, and automation features to meet specific testing requirements.