To evaluate selected products for UV ink removal using heated ultrasonics
Date Run:
09/19/2022
Experiment Procedure:
Selected products were used at full strength in a heated ultrasonic bath. Base temperature started at 85 F and gradually finished at 120 F due to the ultrasonic energy heating the solutions. Two frequencies were utilized for cleaning. The first was a low energy unit at 80kHz and the second was the more common parts cleaning frequency of 40kHz. Each solution was degassed (removal of any excess bubbles to improve energy transmission) for 10 minutes. A saw blade was immersed into a solution and cleaned for 9-10 minutes. At the end of each cleaning cycle parts were observed for paint removal. Testing completed after a total 30 minutes.
Trial Results:
The introduction of heated ultrasonics greatly improved removal of the UV cured ink from the saw blades. The 80 kHz cleaning for two of the solutions resulted in nearly complete removal of the ink from the immersed portion of the blades. In the 40kHz tank, cleaning was far more effective with the first cleaning interval surpassing the 30 minutes of cleaning at the 80kHz range. The table lists the observations and temperatures for each solution used.
80 kHz Cleaning
Product
Time
Temp
Observations
SC Supersolv
9
86
No visual removal. When wiped, paint was being removed
18
100
Some blue coming off on its own without a wipe. Flakes of paint falling off into solution
27
105
Almost removed paint to base
30
110
Good removal. Remaining blue paint was puckering on surface
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