LTT-01 Loop Tack Tester

The LTT-01 Loop Tack Tester is an essential tool for measuring the tack force of adhesives, tapes, labels, and other pressure-sensitive materials. Designed for precision and reliability, the LTT-01 helps ensure that adhesives perform as expected under various conditions. It adheres to renowned standards such as FINAT Test Method No. 9 (FTM-9), PSTC-16 Loop Tack, and ASTM D6195, making it indispensable in industries ranging from packaging and medical devices to food and pharmaceuticals.

Test Principle of the Loop Tack Tester

The loop tack test measures the force required to separate a looped adhesive sample from an adherend (usually a glass plate) immediately after contact. This test is critical for understanding how quickly and strongly an adhesive bonds upon initial contact.

In the LTT-01, a strip of adhesive, typically 25mm wide and 125mm long, is formed into a loop and placed against a glass plate at a controlled speed of 300mm/min. After the adhesive contacts the glass, it is withdrawn at the same speed, and the maximum force required to pull it away is measured. This force is the “loop tack,” which is an essential indicator of the adhesive’s immediate bond strength.

Test Method and Procedure

The LTT-01 Loop Tack Tester follows a simple yet effective testing procedure:

1. A sample of adhesive tape or material, 25mm wide and 175mm long, is formed into a loop.
2. The loop is pressed against a glass plate at a controlled speed of 300mm/min.
3. After contact, the loop is immediately withdrawn at the same speed.
4. The maximum force required to separate the loop from the glass plate is recorded, which is the loop tack value.

Main Parameter

Test Range	200N (or others)
Speed Range	1-500 mm/m
Stroke	200mm
Sample Size	125mm*25mm
Power	AC 110~220V, 50/60HZ

Standards for Loop Tack Testing

1. FINAT Test Method No. 9 (FTM-9) Loop tack measurement
   The FINAT Test Method No. 9 (FTM-9) is one of the most widely recognized standards in the label and adhesive industry. It evaluates the loop tack of pressure-sensitive adhesives, such as those used in labels and tapes. FTM-9 ensures that adhesives meet the necessary performance criteria for quick bonding and ease of application.
2. PSTC-16 Pressure Sensitive Tape Loop Tack Testing
   PSTC-16 is a standard developed by the Pressure Sensitive Tape Council (PSTC), focused on evaluating the loop tack properties of pressure-sensitive adhesives. It is commonly used in the testing of tapes, labels, and similar adhesive products.
3. ASTM D6195 Standard Test Methods for Loop Tack
   ASTM D6195 provides guidelines for measuring the loop tack of pressure-sensitive adhesives. This standard is widely used in various industries, including packaging, medical devices, and pharmaceuticals, to verify that adhesives meet required bond strengths.

Features and Technical Specifications

The Tape Loop Tack Testing Machine is equipped with advanced features for precise, reliable tack testing.

• User-Friendly Display: A 7-inch HMI touch screen interface enables easy setup, monitoring, and operation, streamlining the testing process.
• PLC Control: Equipped with Programmable Logic Control (PLC) for high precision and automated testing capabilities.
• Wide Test Range: The instrument covers a test range of up to 200N, allowing flexibility for different adhesive strengths.
• Adjustable Speed Range: Speed options from 1-500 mm/min support diverse testing requirements.
• Precision Mechanics: A precision ball screw system ensures smooth, consistent movements and accurate measurement of speed and displacement, maintaining high testing accuracy.
• Customizable Parameters: Operators can adjust speed, stroke, and dwell time to meet specific testing needs.
• Enhanced Safety: Safety mechanisms include an automatic return function and limiting device, ensuring operator safety during testing.
• Integrated Microprinter: A built-in dot-matrix microprinter allows for instant output of test results for documentation and reporting purposes.
• Standard Compliant Glass Plate: Includes a standard-compliant float glass plate, ensuring accurate tack measurements and consistent test conditions.

Configuration and Accessories

The Tape Loop Tack Testing Machine is equipped with standard and optional components to enhance its versatility and user convenience.

• Standard Configuration:

  • LTT-01 Loop Tack Tester unit
  • Accessories: Glass panel, upper jaw, lower jig, fuses, user manual, calibration certificate, and power cord.

• Optional Configuration:

  • Stainless steel panel for increased durability
  • RS232 port for data communication and transfer
  • COM line and specialized software for advanced data analysis and reporting

Applications of the Tape Loop Tack Testing Machine

This instrument is ideal for a broad range of industries where adhesive reliability is essential, such as:

• Packaging and Labeling – Ensuring that tapes, stickers, and labels maintain their bond immediately after application.
• Medical and Pharmaceutical – Testing adhesive tapes and bandages for consistent performance.
• Food and Beverage – Assuring the quality of packaging seals and adhesive closures.
• Electronics and Daily Chemicals – Verifying the tackiness of adhesive components for safe and reliable usage.

The Tape Loop Tack Testing Machine is a robust solution for manufacturers, quality control departments, and testing labs seeking consistent and reliable adhesive performance assessment. With its adherence to ASTM D6195 and other international standards, customizable settings, and safety features, it is the premier choice for high-precision loop tack testing.