Trial #1
Continue evaluating possible cleaners
Four chemistries from the previous experiment were used in addition to three other chemistries. One preweighed aluminum coupon for each cleaner was coated with ink using a swab. The coupons sat for three hours and weighed again. A plastic eye dropper was used to transfer the full-strength cleaner onto the coupon. After five minutes the coupon was wiped with a paper towel to determine if any cleaning was occurring. Observations were recorded. More cleaner was added to the coupon. At the end of the second five-minute interval, coupons were wiped again, and observations made. The coupons were wiped dry, and the final weights were measured.
SUBSTRATE MATERIAL: Aluminum 6061 T-4
CONTAMINANTS: Ink-Poly 2700 Process Red
Table 1 lists the observations made at both five-minute intervals. And Table 2 list the cleaning efficiencies of the cleaners at full strength.
Table 1 Observations Made
| CLEANER
|
1st OBSERVATION (5 min)
|
2nd OBSERVATION (10 min)
|
| Simple Green
|
No signs of removal
|
No good
|
| Shopmaster
|
Complete Removal of Ink
|
|
| Compliance
|
Turned towel pink
|
Turned towel pink
|
| Soy Gold 1000
|
Some ink removed in sections
|
Complete removal of Ink
|
| DE-OX 007
|
Very little signs of removal
|
No good
|
| ND-17
|
Very little signs of removal
|
No good
|
| InproClean 4000T
|
Some ink removed in sections
|
Complete removal of Ink
|
Table 2 Cleaning Efficiencies
| Chemistry
|
% Contaminant Removed
|
| Soy Gold
|
99.6
|
| 4000T
|
98.5
|
| Simple Green
|
7.61
|
| Compliance
|
3.72
|
| ND-17
|
2.14
|
| Shopmaster
|
100
|
| DE-OX 007
|
8.01
|
Three chemistries were able to remove the ink. Soy Gold 1000 (soy methyl ester), InproClean 4000T (semi-aqueous terpene) and Shopmaster (alkaline aqueous). MSDSs have been included for the three products.
No relation