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Stretch Wrap Film Peel Cling Tester SPC-01

Good cling adhesion of the stretch film can make the outer packaging film layer and the layer of the goods stick together, so that the goods on pellets will become very firm. The application field of stretch film is very wide, and the quality control of peel cling can effectively improve the toughness, elasticity and supporting force of the film.
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ASTM D5458 Standard Test Method for Peel Cling of Stretch Wrap describes a way to measure the adhesion strength between two layers of film, so as to know which of the two layers (external or internal) can adhere with greater or lesser strength. 

Test Principle

Peel cling testing requires two different types of samples. The first sample is larger piece as backing placed on test bed. The second piece is a smaller strip which is peeled off of the larger sample.  

The larger sample is wrapped fixed on the incline surface and the smaller sample is attached to a clip, connected with loadcell. It's pulled after it's clung to the large sample and the force is measured during the pulling. 

Test Device

BB/T 0024 is shown in the following figure. It consists of a tripod and an L-shaped frame. During the test, the tripod is fixed on the L-shaped frame. The film is pulled out from the tripod through the L-shaped frame roller and clamped by the tensile tester clamp.

 

We recommend the way described in ASTM D5458, which, during the test, reduces the influence of frictions in a tensile tester and pulley. 

 

Technical Characteristics

1. PLC control, 7-inch man-machine interface touch screen operation

2. Test data, results and curves are displayed in real time.

3. Horizontal test direction to prevent the influence of gravity and pulley

4. Precision ball screw with accurate and adjustable speed control

5. The incline surface is marked with the elongation rate of the sample.

6. RS232 computer interface and professional software are convenient for users to operate (optional)

7. Dot matrix type micro printer embedded

8. Over-travel protection

9. Coefficient of friction function can be added (Optional)

Index

Parameter
Load range 0~5 N
Accuracy 0.5% F. S
Test Speed 125mm/min (or 1~500mm/min adjustable)
Power Supply AC 110~220V

 

Standard

BB/T 0024, ASTM D5458 

 

 

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