Table 3 Color differences of cotton canvas (AA) after treatment with polar and nonpolar nanocomposites
From: New treatments for canvas consolidation and conservation
Treatment of cotton canvas (AA) | Mass uptake (%) | L* | a* | b* | ΔE after treatment |
|---|---|---|---|---|---|
Untreated | – | 90.7 | − 0.2 | 0.1 | – |
Polar nanocomposite | 5 | 91.5 | − 0.3 | 0.3 | 0.8 |
Polar nanocomposite | 10 | 91.2 | − 0.5 | 0.9 | 1.1 |
Nonpolar nanocomposite | 5 | 90.7 | − 0.3 | 1.2 | 1.1 |
Nonpolar nanocomposite | 10 | 90.2 | − 0.5 | 1.5 | 1.5 |