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Reinhard Feldmann
Mass De-acidification
Legaspi, Aquinas University
10th to 12th April 2014
History
Deacidification or Digitasation?
Recommendations
Standards: ISO 9706
Production in alcaline medium
No use of alum
Buffering substance (Calcium carbonate 2 %)
No use of wood fibres (no Lignin)
Paper decay and mass de-acidification
Mass de-acidification I: Introduction
Deacidification methods
Deacidification methods
Solvents
Fine dust method
Aqueous treatment
Deacidification methods
Deacidification (solvents): Papersave
Deacidification methods
Deacidification (fine dust): bookkeeper
Deacidification methods
Deacidification (aqueous): GSK
Deacidification methods
Deacidification (nonaqueous): GSK
Necessity of paper deacidification
1798 First paper making maschine
1807 Invention of Illig
1807 Industrially produced paper
1844 Wood as a new source
Since1980/1990: Neutral or alcaline production
Mass deacidification II: Special problems and workflow
Conclusions | Practical hints | Agenda:
Detailed recording system
Information exchange
Internal check of workflow
Regular reporting
Scientific evaluation
Mass deacidification
1.) Pre-Cleaning of the books
2.) Deacidification and drying
Observing the books during the deacidification process.
Process-Center (automatic unit) for deacidification. Results are recorded for control
Filter for extraction of dust and dirt
Testing pen for pH value of the paper