Dyne pens are a convenient means of verifying a substrate’s treat level. They are commonly used in applications as a quick reference, when the accuracy of dyne solutions is not needed or where dyne solutions are not convenient to use. It is for this reason; dyne pen use is most often used at the production line or in the field. Although most will argue that the use of dyne solutions is more accurate, dyne pens, when used properly, do serve as a good alternative, when the use of dyne solutions proves impractical or the preciseness is not necessary.
What Type of Dyne Pen Is Best?
There are a large variety of Dyne Pens on the market, and, in fact, Jemmco offers a wide number of styles. Despite all of these variations, there are basically two types. One type is the valve type pen, in which a valve is opened up to release the dyne solution when the pen tip is pressed down. This type of pen had been very popular, based on the belief that any surface contaminants picked up on the tip would be washed away with the solution once the valve was opened. Of course, this makes no sense since the contaminants would then be deposited on to the substrate being measured and would be affecting the solution that was used to measure the treat level of the substrate. A secondary issue with these pens is that it adds another variable to the dyne test. Since the amount of fluid released is dependent upon how much time, and how hard the user presses on the tip, it is very easy for too much fluid to be released, flooding the substrate surface, which could result in a false reading.
The second type of pen style available is a wicking type pen. Similar to a magic marker, this style pen does face the same problem as the first, regarding tip contamination, however, the solution flow is now dependent on the wicking action of the pen and not the operator. As a result, the amount of fluid deposited on the substrate is more consistent from use to use, thus eliminating one variable.
Jemmco does offer a valve style pen, our Accu-Flo Jumbo Pen, which uses a thick replaceable felt tip, to reduce the amount of fluid deposited, and to reduce the impact of tip contamination.
How Do They Work?
With Jemmco Accu-Flo Dyne Pens the user simply marks a line on the substrate in question, and counts two seconds. If the line does not breakup within two seconds, the substrate is either at the level of the marker used or higher. If the line starts to break up before the two second count is finished, then the substrate being tested is below the level of the marker used.
Why Accu-Flo Dyne Pens?
Jemmco’s Accu-Flo Dyne Pens are simple to use, making them perfect for use in applications where a quick reference in needed. The dark blue color solution makes them easy to read, especially in poor lighting. For this reason, these pens have proven to be perfect for use at the production line. The wicking style marker provides a constant volume of solution with each swipe, enabling more consistent results each time. They are available in even dyne levels ranging from 32 dynes through 58 dynes, which covers a wide range of applications. Best of all, Accu-Flo Dyne Pens are competitively priced.
Jemmco’s Accu-Flo Dyne Pens are made specifically for each order, so that the user is assured that the pens are fresh and have not been sitting on a shelf. Jemmco puts an anticipated expiration date on each pen to remind the user when it is time to reorder. (note: The expiration date appearing on the pen is a not to exceed date. Pen life is dependent on use, storage conditions and exposure to the atmosphere. Pen solution that has turned green will not give reliable readings and should not be used.)
Accu-Flo Dyne Pens have proven to be very popular with film extruders and plastics converters. Providing a good, quick reference in production environments, users have learned to depend on Jemmco Accu-Flo Dyne Pens.
Accu-Flo Dyne Pens are available in any combination of levels, although we do have a 5 pen minimum.
CLICK HERE to order a complete 14 pen set, Dynes 32-58 even.