Hot Tack Tester - QT-HTT

ASTM F1921, ASTM F2029

QT-HTT Hot Tack Tester is used to test adhesive or peeling strength of packaging films used for heat seal packaging material.

This device is compatible to test the different types of thermoplastic films sealing at different temperature, pressure and at controlled speed to evaluate different application criteria for packaging materials considering the environmental conditions for actual application.

Hot tack tester measures the strength of heat seals formed between thermoplastic surfaces of flexible webs, immediately after the seal has been made and before it cools to room temperature. It simulates packaging and sealing environment and enables to analyse its effects on seals.

Application

Qualitest Hot tack tester is applicable in hot tack and heat seal performance tests for plastic film, laminated film and other packaging film. Meanwhile, it is also applicable in evaluating peel, shear, and tension of other items like adhesive joints, adhesive tape, laminated film, plastic film, paper and other flexible materials.

Features

• It adopts P.I.D (Proportional Integral Derivative) control system with high accuracy to get accurate results.
• Precise control of sealing temperature, pressure and speed
• User-friendly interface with LCD display
• Integrated printer for getting test report.

Operation

• Clamp a specimen in static jaw and one end to moving jaw with load cell bar in between specimen layer.
• Set the temperature, pressure and speed for the test and run the test.
• As moving jaw moves apart from static jaw, automatically seal shall be formed with set temperature and load at heating element and separation by load cell bar enabling immediate separation before seal is cooled to the room temperature.
• Separation force shall be measured by load cell and processed through software to get the final results and test data.

The measured data helps in precise control of sealing process variables (temperature, pressure, and time) in production then enables an optimal balance between material specification, packaging machine speed and seal integrity.

Technical Specifications