Dyne & Surface Tension Measurement

FELT TIP DYNE PENS

Measure printability of plastic substrates and other non-porous surfaces with CON-TROL-CURE^® Felt Tip Dyne Pens. These chisel-tip markers provide a quick, clean and easy method of testing treatment levels on polymer plastics. The simple application of a dyne pen to the surface or printing side of the tested material will determine its surface tension value, which proves if the wettability of the pen's designated dyne level has been reached. Once surface tension is known, the tested material's printability and adhesion properties may then be quantified. The Felt Tip Dyne Pens are tube color-coded for easy identification. Each set contains 8 pens in standard levels: 30, 32, 34, 36, 38, 40, 42, 44 dynes/cm. 6 month shelf life.
 

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LIQUID DYNE PENS

The CON-TROL-CURE® Liquid Dyne Pen's spring-valve tip  design keeps the pen's applicator away from the dyne fluid storage to prevent contamination. Press the tip firmly down to open the valve and flood the tip with fresh fluid. Available in sets of 8 pens from 30 to 44 dynes/cm (30, 32, 34, 36, 38, 40, 42, 44) and from 46 to 60 dynes/cm (46, 48, 50, 52, 54, 56, 58, 60). 6 month shelf life. Liquid Dyne Pens are also available by special order at any level from 30-70 dynes/cm. For all orders, there is an 8 pen minimum.
 

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DYNE TEST SOLUTIONS

Dyne Test Solutions are another way printers, converters and extruders can determine surface energy levels. Ranging from 30-70 dynes/cm, these solutions offer an easy and effective method of testing. By wetting the tip of a cotton applicator with one of the mixtures and spreading a line over the test specimen, users can verify treatment within 2 seconds. If the continuous line holds for 2 seconds or more, users can be assured that the material is treated to within 1 dyne of that specific solution.

Continuing to test different levels in ascending order will allow the user to ultimately determine the appropriate level of treatment. If the continuous film breaks into droplets in less than 2 seconds, the material is insufficiently treated. Users must continue to test in a descending sequence to determine treatment level. Applicator must be changed after each test.

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DYNE PEN TEST SET

This 6 pen magic marker-type pen set quickly and effectively verifies whether a substrate is treated from 36 up to 48 dynes/cm. If the material is properly treated, the applied dyne mark is uniform, resulting in a continuous and homogenous colored line. If the material is insufficiently treated, the line of the dyne test retracts in the form of small globules until the mark nearly disappears. Set includes pens in 6 levels: 36, 38, 40, 42, 44 and 48 dynes/cm. 6 month shelf life.
 

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COTTON APPLICATORS

Avoid contamination of your dyne testers and your test area when performing dyne testing. Use these disposable, highly absorbent cotton swabs rather than the pen tip to mark substrates. These 6” swabs are available in boxes of 1000.

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POCKET GONIOMETER

The Pocket Goniometer is a battery operated instrument that measures static contact angle and dynamic surface hysteresis for laboratory and field applications related to printing, adhesion, and surface-related problems. It is also an ideal tool for checking
contamination of a specimen and the effects from cleaning and surface treatments.

By placing a liquid droplet on a specimen surface a contact angle is formed at the
contact area. A droplet that "beads up" is non-wetting and a contact angle greater than 90° is displayed. When the droplet "wets out" across the surface, wetting is obtained and the contact angle is less than 90°. A 6x magnified image of the droplet is displayed on the built-in screen. A reading is quickly made by rotating the protractor until the lines are parallel to the tangent at the contact point. An optional eye-piece provides
7x magnification of the test sample for very accurate readings.

FEATURES:
• Battery operated long life light source (expected lifetime of 70,000 hours)
• Additional syringes are available separately
• Industry Standards: ASTM D724, TAPPI T458, SCAN P 18
 

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