Legaspi 04 mass_deacidification
- 1. Reinhard Feldmann Mass De-acidification Legaspi, Aquinas University 10th to 12th April 2014
- 2. ? 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
- 3. Deacidification methods Deacidification methods ? Solvents ? Fine dust method ? Aqueous treatment
- 4. Deacidification methods Deacidification (solvents): Papersave
- 5. Deacidification methods Deacidification (fine dust): bookkeeper
- 8. Necessity of paper deacidification 1798 First paper making maschine 1807 Invention of Illig 1807 Industrially produced paper 1844 Wood as a new source Since 1980/1990: Neutral or alcaline production Mass deacidification II: Special problems and workflow
- 9. Conclusions | Practical hints | Agenda: ? Detailed recording system ? Information exchange ? Internal check of workflow ? Regular reporting ? Scientific evaluation Mass deacidification
- 10. 1.) Pre-Cleaning of the books 2.) Deacidification and drying
- 11. Observing the books during the deacidification process. Process-Center (automatic unit) for deacidification. Results are recorded for control
- 12. Filter for extraction of dust and dirt
- 13. Testing pen for pH value of the paper