Table 2 Organic and inorganic substances detected through μATR-FTIR performed on INV_11, INV_13, INV_15, and INV_20.
11_3 | 11_4 | 11_6 | 11_7 | 13_2 | 13_3 | 13_5 | 13_8 | 13_9 | 15_2 | 15_4 | 20_3 | 20_4 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Type of paper | |||||||||||||
Cellulose | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Lignin | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Fillers/inorganic pigments | |||||||||||||
Silicates | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
Carbonates | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Organic binders | |||||||||||||
Unidentified binders | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
Proteinaceous binders | ✓ | ✓ | |||||||||||
Waxes | ✓ | ✓ | ✓ | ||||||||||
Urushi lacquer | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
Organic pigments | |||||||||||||
Indigo | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||||
Inorganic pigments | |||||||||||||
Orpiment | ✓ | ✓ | ✓ | ✓ | |||||||||
Mordants | |||||||||||||
Green vitriol | ✓ | ✓ | |||||||||||
