Why measure gloss?
Gloss is an aspect of the visual perception of objects that is as important as colour when considering the psychological impact of products on a
Hanatek Film Shrink Tester (FST)
- Determines quality of cast and blown films
- Measures unrestrained film shrinkage
- Simple laboratory test
What does the FST measure?
The Hanatek Film Shrink Tester (FST) has been designed to quickly and easily measure the
effect of temperature on plastic film.
The application of heat causes certain plastic films to rapidly contract; this effect can be used to seal and pack many items from food to consumer goods.
The shrink effect is due to internal forces locked into the film during manufacture being released by heating, it is also known as linear thermal shrink or free shrink. The amount of shrinkage is dependent on the film type, thickness and sealing temperature.
Testing the percentage shrink of a film ensures that it is suitable for a particular packaging application and establishes the correct temperature for that application.
Why is film shrinkage important?
Film shrinkage is important to industry as blown films are often heat treated to form protective packaging for perishable food or manufactured products.
Blown plastic films contract when heated, this effect is used to seal or protect food or industrial products. In contrast a film that exhibits too much shrinkage may distort a product or form a weak functional barrier.
The Hanatek film shrink tester is used to measure the effect of temperature on blown films.
Benefits of using The Hanatek FST
- Easy to use
- Fast and accurate hotplate control allows film shrink tests to be performed in minutes
- Easy to read backlit scale allows percentage shrink to be easily determined
- Determines quality of cast and blown films
- Measures unrestrained film shrinkage
Applications
Stretch film
Blown film
Shrink wrap
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Specifications
| Instrument Specifications | ||
|---|---|---|
| Standards | Results equivalent to ASTM D2732 (hot oil bath test method). This is a safer and more cost effective laboratory measure of percentage shrink | |
| Display | LCD with set point and actual temperature reading | |
| Temperature | Range: 40-200°C | |
| Accuracy | Accuracy: ±0.3°C | |
| Timer | Lapse timer with alarm registers overshoot | |
| Dimensions | 120mm (H) x 300mm (W) x 270mm (D) | |
| Weight | 4.7kg | |
| Packed Weight | 6.1kg | |
| Packed Dimensions | 350mm (H) x 450mm (W) x 290mm (D) | |
| Commodity Code | 9027 8017 | |
Accessories included:
- High temperature oil
- Template
- Pipette
- Tweezers
- Cutting knife
- Carrier discs
Free extended warranty
Free extended 2 year warranty: Requires registration at www.rhopointinstruments.com/help-services/forms-feedback/instrument-registration/ within 28 days of purchase. Without registration, 1 year standard warranty applies.
Calibration and service
Fast and economic service via our global network of accredited calibration and service centres. Please visit www.rhopointinstruments.com/help-services/calibration-servicing/ for detailed information.
Downloads
Datasheets
Manuals
Application Notes & White Papers
Answers to common questions about our instruments and measurements
What glossmeter do I need?
Identify the surface that you wish to measure. Is it a flat surface? If so, it can be measured with a traditonal glossmeter. Curved surfaces
What is RSpec?
RSpec is the peak reflectance measured over a very narrow angular band in the specular direction (+/-) 0.0991º. RSpec is very sensitive to any texture
