Table 2 Advantages and disadvantages of the different treatment variants
Advantages | Disadvantages | |
|---|---|---|
Variant 1 | Shorter treatment time | Only a small amount of complexing agent is applied Complexing agents may remain in the fibre network/on the sample |
Variant 2 | An alkaline reserve may be deposited within the CNF layer Shorter treatment time | Only a small amount of calcium hydrogencarbonate solution is applied ⟶ sufficient deacidification? |
Variant 3 | Only minor changes compared to the standard treatment | CNF and gelatine combine to form a surface layer which may get sticky at increased humidity |
Variant 4 | Standard treatment is applied Final mechanical stabilization before drying | |
Variant 5 | Standard treatment is applied Pre-stabilization of the mechanically damaged objects If applicable, protection against mechanical forces during bath treatment | Washing after CNF application ⟶ does washing out free iron ions entail an increased risk of migration? Fibrillated nanocellulose may be partially washed out |