Table 3 Color difference (∆E) of pigment layer, and pigment layer coated with AC33, B72, FEVE, and FKM reagents before and after 120-h UV degradation
Pigment layer | Pigment layer before reinforcement | Pigment layer after reinforcement | |||
|---|---|---|---|---|---|
AC33 | B72 | FEVE | FKM | ||
Lead white | 7.25 | 7.06 | 6.10 | 4.75 | 3.56 |
Cinnabar | 4.13 | 3.03 | 12.48 | 2.80 | 5.45 |
Ultramarine | 11.97 | 16.90 | 4.36 | 7.21 | 12.50 |
Paris green | 2.48 | 6.06 | 7.49 | 2.15 | 2.97 |
Orpiment | 7.38 | 10.07 | 8.21 | 9.48 | 10.20 |
Carbon black | 5.07 | 1.77 | 3.31 | 2.73 | 3.31 |