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Leather consolidation



The problem of consolidation has been worrying conservation chemists and book conservators alike for tens of years. "Red rot"
is the popular widespread name for a condition of "death" of the collagen molecules that make up the fiber bundles in leather of all
sorts, with a resulting byproduct: ammonium sulphate. Once there's nothing else to be corroded by excess acid in the fibrous
structure, we have powder in our hands. Products that fill up interfibrillar spaces but do not create solid, permanent bonds with
the surroundings actually do nothing to reinforce it, as is the case with vaseline, glicerol, leather dressings and, even, klucel-g.
Spending a word on cellulose ethers, it may be useful to remember that cellulose derivatives can't
stand very acid environments, as is the case of  degraded leather. Besides, they are usually of higher molecular weight (i.e. medium
to long  molecule chains) and are not able to fully penetrate and disperse in all layers inside leather. Apply it today to have more
waste material inside degraded
leather in the near future.

    Claudius


         Claudius Schettini
Philobiblion Laboratorio di Restauro
 via San Cristofano 22/R - Firenze
    mail to: philobiblion@libero.it


         Claudius Schettini
Philobiblion Laboratorio di Restauro
 via San Cristofano 22/R - Firenze
    mail to: philobiblion@libero.it

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