By: Sherif Afifi | January 15, 2018


For rare books restoration and conservation purpose; in many cases, spine lining, and animal glue should be removed (cleaned off) completely, in order to restore and conserve the sewing or the spine.
Several techniques are used for loosening and clean off old glue from spines.
Be careful when you clean off the animal glue from the book spine. Watch this video tutorial, demonstrate one of the most applied practice.

  In this video methylcellulose solution with a concentration of 4% has been used (Viscosity: 2000 cPs at 2% in water, pH 7.0.)
Watch the video:
https://youtu.be/4W1msNhl29g



...

By: Sherif Afifi | November 13, 2017


Parchment is the skin of an animal which has been processed with a lime solution and stretched under tension. Parchment has unique structural qualities which differentiate it from paper, and it is usually positively identified with the assistance of a hand lens or microscope.In some cases, analytical testing should be considered due to the fact of some certain types of highly calendered papers misidentified with parchment during the visual examination process.

Parchment which is most commonly used as a writing surface and as a binding material in some cases; has a cultural and historical significance that makes it precious material that needs to be conserved and protected against future deterioration by specialized conservators.



Using magnetic as a parchment conservation tool 
Profissional conservators usually take the responsibility of developing innovative treatment methods. Parchment flattening magnetic table is one of the innovations that conservators developed and work with. In the next few lines, I will explain how this flattening magnetic table works and it's mechanism.

Disclaimer: Parchment is a very sensitive material, never ever try to deal with historical parchment materials unless you are well trained to do so, or under a supervision of a professional conservator.

Flattening magnetic table parts:

  1. Wooden frame table.
  2. Metal flat surface.
  3. Magnetic presses.



- Note that the Parchment or vellum is humidified in either one of the common safe humidification methods before applying flattening.

Wooden frame
 The metal (stainless steel) flat surface is mounted on a wooden frame table and the stainless steel surface is with holes or pens to allow a good ventilation to the parchment during the flattening process. Remember using Reemay® acid-free archival polyester tissue under the parchment (between the parchment and the stainless steel) during flattening process.


This picture (Fig 3) shows what is inside the magnetic press and its mechanism. the screw handle controls the magnetic pad level through the metal coil compression string. Hence, this is how conservator controls the strength of magnetic pressure on the parchment, and to eas the process of removing and adding those magnetic presses on the metal table.
Figure 3 - Inside the magnetic press

Wach this video which explains more how this magnetic flattening technique works



------------------------------------------------------------------------- Creating a Knowledge Sharing Culture
Sherif Afifi
--------------------------------------------------------------------------------------------------------------------
Sorry English is not my first language but sharing experience is a global language

By: Sherif Afifi | November 13, 2017


Parchment is the skin of an animal which has been processed with a lime solution and stretched under tension. Parchment has unique structural qualities which differentiate it from paper, and it is usually positively identified with the assistance of a hand lens or microscope.In some cases, analytical testing should be considered due to the fact of some certain types of highly calendered papers misidentified with parchment during the visual examination process.

Parchment which is most commonly used as a writing surface and as a binding material in some cases; has a cultural and historical significance that makes it precious material that needs to be conserved and protected against future deterioration by specialized conservators.



Using magnetic as a parchment conservation tool 
Profissional conservators usually take the responsibility of developing innovative treatment methods. Parchment flattening magnetic table is one of the innovations that conservators developed and work with. In the next few lines, I will explain how this flattening magnetic table works and it's mechanism.

Disclaimer: Parchment is a very sensitive material, never ever try to deal with historical parchment materials unless you are well trained to do so, or under a supervision of a professional conservator.

Flattening magnetic table parts:

  1. Wooden frame table.
  2. Metal flat surface.
  3. Magnetic presses.



- Note that the Parchment or vellum is humidified in either one of the common safe humidification methods before applying flattening.

Wooden frame
 The metal (stainless steel) flat surface is mounted on a wooden frame table and the stainless steel surface is with holes or pens to allow a good ventilation to the parchment during the flattening process. Remember using Reemay® acid-free archival polyester tissue under the parchment (between the parchment and the stainless steel) during flattening process.


This picture (Fig 3) shows what is inside the magnetic press and its mechanism. the screw handle controls the magnetic pad level through the metal coil compression string. Hence, this is how conservator controls the strength of magnetic pressure on the parchment, and to eas the process of removing and adding those magnetic presses on the metal table.
Figure 3 - Inside the magnetic press

Wach this video which explains more how this magnetic flattening technique works



------------------------------------------------------------------------- Creating a Knowledge Sharing Culture
Sherif Afifi
--------------------------------------------------------------------------------------------------------------------
Sorry English is not my first language but sharing experience is a global language

By: Sherif Afifi | August 29, 2017


Albumen prints are composite objects with complex chemical and physical structures. Different materials lead to very complicated structures, which react and respond differently to external and internal influences. These structures make them more prone to damage as compared to other objects during some conservation treatment processes; a water treatment sometimes is the only alternative available, especially in conserving rare books which are illustrated with albumen prints, and this alternative can affect not only the paper substrate but also the albumen print.


In this study, a diagnostic of 19th-century Carte de Visite (CDV) albumen prints, has been performed before and after water treatment in order to evaluate the possibility of removing ...