| Designer | X1 | X2 | X1 = alginate of sodium concentration (%) | X2 = calcium chloride concentration (%) |
| 1 | −1 | −1 | 1.50 | 3.00 |
| 2 | 1 | −1 | 3.50 | 3.00 |
| 3 | −1 | 1 | 1.50 | 7.00 |
| 4 | 1 | 1 | 3.50 | 7.00 |
| 5 | −1.41 | 0 | 1.09 | 5.00 |
| 6 | +1.41 | 0 | 3.91 | 5.00 |
| 7 | 0 | −1.41 | 2.50 | 2.17 |
| 8 | 0 | +1.41 | 2.50 | 7.83 |
| 9 | 0 | 0 | 2.50 | 5.00 |
| 10 | 0 | 0 | 2.50 | 5.00 |
| 11 | 0 | 0 | 2.50 | 5.00 |