Abstract
Current treatments proposed to limit iron gall ink damages require the
immersion of the document in aqueous anti-oxidant solutions, and thus
present undesirable side effects. This work deals with the possibility of
replacing these treatments by interleaving treatments performed with
anti-oxidant charged papers. Interleaving treatment consists in pressing
the document between two interleaves, at ambient temperature and in
high humidity conditions in order to provoke the migration of active
components from the interleaves to the document. The use of high humidity
conditions may provoke a migration of ink components from the ink
line to the paper which is prejudicial to the future conservation of the
document. Tests, performed on a set of 53 original manuscripts, led us
consider that a relative humidity of 80% was minimizing this risk. The efficiency
of interleaving treatment was then evaluated on laboratory
samples made of Whatman paper impregnated with iron gall ink. Interleaves
charged with halide salts (NaCl, NaBr, CaCl2, CaBr2) and/or
calcium carbonate were investigated. An alkaline reserve of 2% calcium
carbonate in the interleaves does not impact the treatment efficiency,
which is mainly dependant upon the concentration of anti-oxidant, the
pressure and the duration of the treatment.
immersion of the document in aqueous anti-oxidant solutions, and thus
present undesirable side effects. This work deals with the possibility of
replacing these treatments by interleaving treatments performed with
anti-oxidant charged papers. Interleaving treatment consists in pressing
the document between two interleaves, at ambient temperature and in
high humidity conditions in order to provoke the migration of active
components from the interleaves to the document. The use of high humidity
conditions may provoke a migration of ink components from the ink
line to the paper which is prejudicial to the future conservation of the
document. Tests, performed on a set of 53 original manuscripts, led us
consider that a relative humidity of 80% was minimizing this risk. The efficiency
of interleaving treatment was then evaluated on laboratory
samples made of Whatman paper impregnated with iron gall ink. Interleaves
charged with halide salts (NaCl, NaBr, CaCl2, CaBr2) and/or
calcium carbonate were investigated. An alkaline reserve of 2% calcium
carbonate in the interleaves does not impact the treatment efficiency,
which is mainly dependant upon the concentration of anti-oxidant, the
pressure and the duration of the treatment.
| Originalsprog | Fransk |
|---|---|
| Publikationsdato | 31 dec. 2013 |
| Antal sider | 5 |
| Status | Udgivet - 31 dec. 2013 |
Emneord
- jerngallusblæk, haldier, mellemlæg, fugt, konservering