Frescoes vs Tempera
When we talk about wall paintings or mural paintings, most of us call them ‘frescoes’. This might not be technically correct for all the murals. Technically, if the painting is created or we can say the colours are applied on a plaster which is still wet, the painting is called fresco (Italian word which means…
Getting ready for next workshop: March 2019!
Another opportunity for budding conservators to understand and learn: Conservation scenario in India The basic material and techniques used in archival conservation The basic materials and techniques in oil painting (on canvas) conservation possible job and business prospects Queries can be send here: Some glimpses from earlier workshops:
Archival conservation: a case study
Bookworms love spines of books and hate anoxic environment
Its our experience that insects that damage books are mainly attacking spine. This is because the spine receives liberal amount of adhesive while book making. After eradicating all the various stages of insects thriving in the books, book conservators repair damaged and deteriorated bound materials. We treat them further so that readers/researchers can consult them…
Aspergillus niger and Paper
Aspergillus niger is one of the most active cellulolytic fungi. The roll of drawings in the above picture is mainly infested by A. niger and Chaetomium sp. as identified from the cultures isolated from the deteriorating inner-side of the roll. This culture was maintained on potato dextrose agar slants. Following are the digital pictures of…
Paper burnt or eaten?
This black powdery sheet (!) is not burnt paper, but, paper eaten by fungus. Cellulolytic microorganisms are hiding nicely all around us and are much more destructively powerful than we can expect from the tiny spores. Storage enclosures that were designed and created for protection turned out to be actually working with the deteriogens…
Removing Foxing is doable, but needs thorough understanding and patience too…
In paper conservation literature, there are many ways and materials advised to be used to remove foxing or at least lighten its scars. Here i am not going to suggest what to use, but would like to mention the importance of a thorough knowledge of chemistry and physics too apart from the deep appreciation of…
Foxing
That peculiar smell/odor when some old books are opened might at times be associated with mold and foxing. We come across books with foxing that may or may not have strong odor. At least one of the two books that we have received in our lab mainly for foxing treatment has a very strong odor.…
Glassine stuck to a Photograph
We come across many different kind of problems associated with old black and white photographs. Fading, yellowing, redox blemishing, silver mirroring etc are some common problems with old photographs. These problems are generally due to the inherent causes or reasons present within the Photograph either because of the technique or material involved in making of…
BoPET: Mylar/Melinex/Hostaphan
All the conservation labs/workshops have mylar or melinex as the most commonly used material while treatment procedures as well as in packaging and safe storage or display etc. Such widely and frequently used material is known to all by these trade names (Mylar and Melinex), but not many know the exact properties and actual name…
Case study of conservation of a map
Info from the print Condition Assessment We received the map in a folded form. There was some adhesive residue visible on the outside. On opening of the very first fold we found that due to the application of some adhesive, the folds were stuck to each other. There was an attempt in past, by someone…
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