This standard is issued under the fixed designation F/FM; the number 1 This practice is under the jurisdiction of ASTM Committee F02 on Flexible. When experiencing ink flaking, with uncured, or easily ablated inks, performing ASTM F, the tape test can determine if ink to substrate. Poor adhesion of ink or coating to the base substrate can impact the readability of printed materials, affect the functionality of coated materials, or create a.
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Think of the relationship of ink to substrate as you would shampoo to scalp. If the wrong type of shampoo is used, it could result in dandruff. Likewise, if the wrong ink is astmm applied to a substrate the ink can fail with the result being the ink flaking off, much like dandruff.
Fortunately, there are tests that can help identify both issues. To test your scalp for flakes you can perform the scratch test. For the most accurate scalp scratch test results wear a black t-shirt and use a black light to identify debris while scratching.
When experiencing ink flaking, with uncured, or easily ablated inks, performing ASTM F, the tape test can determine if ink to substrate adhesion is acceptable. Poor ink or coating adhesion can affect the readability, functionality, and even cause contamination.
The last thing any company wants is a label in-line or in the f22252 with potential of failing inks.
Whether there is a possibility for that ink to flake and contaminate an OR environment, make a critical instruction unreadable, or cause a cosmetic malfunction, the ASTM F tape test can help identify these risks upfront.
There is much more behind the ASTM F test than just a piece of tape and a mini tug-o-war contest.
To avoid poor results it is necessary to be as consistent as possible in performing the test. Having an understanding at both the printer and the end user about how the test is performed and how to interpret the results is critical in making this an effective and valuable test method. Developing that standard conditioning test is important.
Typical things to consider are as follows: I suppose your question now is what to do if your tape looks like it just picked up half of the confetti from Bourbon Streets Mardi Gras celebration after the Super Bowl? If this occurs be sure to communicate that all possible variables have been standardized. This could be one of any of the following things:.
This is very similar xstm ink adhesion issues. Use the ASTM F tape test as an indicative measure and, if there is a failure, work closely with the printer until the test is passed. An adequate sample size to be tested should be determined Conditioning consistency of the sample; ambient temperature, moisture exposure, ink cure time, amount of time tape is applied, etc.
The substraight age and properties remains constant. Note; the same test on a one year old material has potential to vary significantly from a three year old material. Surface energy treatments can diminish over time. Here is how to administer the test: The test should be completed on a flat surface with no wrinkles, creases, or folds.
ASTM Ink Adhesion Tape Test – AWT
Cut a piece of or tape to use. Once sized, apply the tape to the surface of the coated substrate with your finger or thumb being sure to avoid causing any wrinkles or bubbles.
Make certain the set up time for the scotch ast, is consistent. While holding the sample down peel the tape off at a degree angle with an even motion at approximately 12 to 18 inches per second. I always remember my tape tests working. Examine sample for ink flaking. Document the results and save the samples.