Table 1.
Summary of fluid properties for each ink, together with dimensionless number Z.
| Ink No | Composition (volume fraction) | Density (kg m−3) | Viscosity (mPa s) | Surface tension (mNm−1) | Z | Training | ||
|---|---|---|---|---|---|---|---|---|
| Deionized water | Ethylene glycol | Glycerol | ||||||
| 1 | 100 | 0 | 0 | 998.4 | 1.000 | 71.6 | 53.6 | Used |
| 2 | 90 | 0 | 10 | 1037.0 | 1.613 | 69.3 | 33.2 | Used |
| 3 | 80 | 0 | 20 | 1066.5 | 1.843 | 68.4 | 29.3 | Used |
| 4 | 70 | 0 | 30 | 1093.2 | 2.773 | 67.3 | 19.5 | Used |
| 5 | 60 | 0 | 40 | 1126.3 | 4.140 | 66.5 | 13.2 | Used |
| 6 | 90 | 10 | 0 | 1036.7 | 1.223 | 67.0 | 43.1 | Used |
| 7 | 70 | 30 | 0 | 1043.3 | 1.990 | 61.3 | 25.4 | Used |
| 8 | 40 | 60 | 0 | 1046.7 | 4.520 | 52.3 | 10.5 | Used |
| 9 | 30 | 70 | 0 | 1094.4 | 5.940 | 50.1 | 7.88 | Used |
| 10 | 20 | 80 | 0 | 1106.8 | 8.883 | 49.3 | 5.26 | Used |
| 11 | 0 | 100 | 0 | 1113.5 | 16.38 | 45.3 | 2.74 | Used |
| 12 | 50 | 50 | 0 | 1071.1 | 3.450 | 56.4 | 14.3 | Unused |