TST 1- Thermal Yarn Shrinkage – Lenzing

Efficient Quality Control for Thermal Shrinkage Testing

Lenzing Instruments’ Thermal Shrinkage Tester TST 1 provides efficient quality control by testing one sample with a width of up to 50 mm for percent shrinkage or shrinkage force resulting from heating of the material. The thermal shrinkage properties are analyzed by means of heating the sample at a preset and defined temperature for a specified period of time.

Automated Testing with Precision

After sample loading, the test is performed fully automatically and computer controlled, without any operator influence on the measurement. The specially designed oven-type heater protects the measurement from any ambient influence and together with the high resolution length measuring sensor respectively load cell, TST 1 guarantees for stable testing conditions, highest accuracy and reproducibility of results.

Advanced Testing Capabilities

TST 1 offers the possibility of dynamic tests, at which the behaviour of the material is observed during exposure to a temperature ramp at a constant rate of temperature increase. Subsequent cooling of the sample to ambient temperature enables determination of the residual shrinkage or shrinkage force. Optionally, measurements may be performed according to customized testing sequences.

Real-time Monitoring and Analysis

During the test, the entire shrinkage behaviour is graphically displayed on the connected PC. This enables precise monitoring and analysis of production irregularities, making TST 1 a sophisticated tool for research and development. User friendly software offers flexible and comfortable testing with detailed reports of results.

Standards Compliance

TST 1 is standardized according to ISO 14616 and DIN 53369, ensuring reliable and internationally recognized testing procedures for films, nonwovens, laminated products and fabrics.

Technical Specifications

  • Testing temperature: 45 °C - 300 °C
  • Heater length: 250 mm
  • Temperature distribution: Constant temperature distribution of ± 2 °C in at least 80 % of the heater length
  • Shrinkage length: 99 % - 500 %
  • Accuracy: ± 0.1 %
  • Range of shrinkage force: An option of 5, 10, 30 kg to be specified by the customer
  • Force accuracy: At 5 kg < 0.2 % (at 50 % of full scale)
  • Max. sample width: 50 mm
  • Min. sample length: 600 mm
  • Pretensioning: With pretension weights; 2 pcs. 5 g and 2 pcs. 13 g included
  • Resolution Force: 1 cN (=0.01 N)
  • Temperature resolution: 0.1 °C
  • Shrinkage length resolution: 0.1 %
  • Power supply: 90 - 240 V, 50/60 Hz, 600 W
  • Height: 290 mm
  • Width: 450 mm
  • Depth: 550 mm
  • Weight: 25 kg

FAQ - TST 1- Thermal Yarn Shrinkage – Lenzing

What is the TST 1 used for?

The TST 1 Thermal Shrinkage Tester is used for automated determination of thermal shrinkage and shrinkage force in films, nonwovens, laminated products and fabrics according to ISO 14616 and DIN 53369 standards.

What temperature range can the TST 1 handle?

The TST 1 can perform testing at temperatures ranging from 45°C to 300°C with constant temperature distribution of ± 2°C in at least 80% of the heater length.

How does the TST 1 ensure accurate measurements?

The TST 1 features a specially designed oven-type heater that protects measurements from ambient influence, high resolution sensors, and computer-controlled operation without operator influence to guarantee stable testing conditions and highest accuracy.

What sample sizes can the TST 1 accommodate?

The TST 1 can test samples with a maximum width of 50 mm and requires a minimum sample length of 600 mm for proper testing procedures.

Does the TST 1 provide real-time monitoring?

Yes, the entire shrinkage behaviour is graphically displayed on the connected PC during testing, enabling precise monitoring and analysis of production irregularities with detailed reports of results.

What optional features are available for the TST 1?

Optional features include sample-cutting device, fast cooling by air pressure (6 bar), transparent protection flap, additional pretension weights, and OPC UA interface for enhanced functionality.

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