Category Archives: Archival Conservation
Conservation and Preservation of an archival scrapbook
An important record of an organization, in the form of a scrap book, was brought to our lab for treatment and preservation. The data was important and the originals need to be rescued from further deterioration. The pictures, maps and documents in this scrapbook were pasted with an acidic glue to the black paper of…
From the discussion on use of Chloramin T
Traditional binding of Sri Guru Granth Saheb ji
Preservation of Archival scrapbook
A scrap book was brought to our lab for treatment and preservation. The data was important and the originals need to be rescued from further deterioration. The pictures, maps and documents in this scrapbook were pasted with an acidic glue to the black paper of a photo album. The glue could be confirmed as acidic…
Life-size photograph from late nineteenth or early twentieth century
Condition Assessment and Treatment Record A Life -size photograph print that came for treatment to our lab could not be taken inside immediately at its arrival, as it had live termite all over it. All the life stages of a termite could be seen on the huge framed photograph. It was extremely difficult to control…
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 have very strong odor. All old books have vellichor, but some have stronger musty odor. Foxing is an age-related process of deterioration that causes spots and browning on old…
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…
Paper and book conservation – Part 9
Finally, all the books that came to our lab have been restored and given a kind of new life. They are going back to the library tomorrow morning. Following is a re-sharing of a summary of all the conservation processes performed in our lab: Team Heritage Preservation Atelier had a challenging task of conservation of…
Treating the adhesive mess
Sewing a book after conservation
Team working towards final steps of an intense task of books’ conservation
Team Heritage Preservation Atelier had a challenging task of conservation of a set of books that could not be digitized by a library because of the extremely brittle pages and stuck up and deteriorated condition. We started with making a detailed condition assessment report. After initial documentation, we opened up the worn out and damaged…
Studying Paper for presence of watermark and bluish tinge: Case of 150 years old drawing
The drawing under study is made in 1868 (as evident from the signature) and the watermark mentions the paper manufacturing year to be 1866. ‘Watermarks’ are markings put into paper during its production, by making thinner or thicker layer of pulp when it is still wet. It becomes visible when paper seen with light source…
Case of a 150 year old engineering drawing
June 26, 2018 By Manit When we first saw the drawing on site, it appeared to be in a fairly good condition. Once it arrived in our conservation lab and we started a thorough diagnosis, there were a lot many observations and analytical details that were required to be considered before any treatment methodology…
one little observation while studying old miniature paintings
At times we find old sticky tape which leaves almost no adhesive on paper and does not make the paper brittle; instead, it makes its own plastic base brittle. Is this because of the adhesive chemistry itself or because of the pigment on the paper it is applied on?
Paper paintings and mounting issues
We have learned while specializing in the field of conservation of cultural property (more specifically art, in the present discussion), about the specific type of material that should be used while mounting a painting on paper. The technique also matters a lot. One common technique of mounting involves creating ‘hinges’ on the mount board…
Issues in old books and traditional re-binding
When the pages have turned very brittle and there are tears, lost areas and old repairs with incompatible and damaging materials, it is not that simple to mend and rebind a book with traditional sewing technique. Some binding procedures that cannot be performed properly or at all are: We cannot trim the edges. We…
Sellotape: How it deteriorates and changes with time
What is sellotape? Sellotape is basically a brand of transparent, polypropylene-based, pressure-sensitive tape. But, this term is also used for any such pressure sensitive tape of any brand. Sellotape is generally used for joining, sealing, attaching and mending. The older version of sellotape has shown some changes in its physical and chemical properties over a…
Paper and book conservation – Part 8
Once the old damaged binding was opened and stuck up pages of the books (to be treated) were separated/opened-up and the torn pages mended, the information in the books was digitally preserved. This digitization process was done before re-binding because it would have been difficult and damaging to digitize them in bound state. It is…
Paper and book conservation – Part 7
Paper and book conservation – Part 6
Last week we were busy tending each and every folio of the highly damaged and acidic books that we are restoring these days. Following pictures of just one of the books might give an idea of the kind of work we are doing these days with the help of our talented young staff.
Paper and book conservation – Part 4
Book and paper conservation – Part 3
Paper and book conservation – Part 2
Two major problems associated with old paper manufactured during mid nineteenth century onward are: Brittleness Yellowing or darkening Breaking of paper due to brittleness (loss of flexibility to bend without breaking) generally occurs in very old paper which was manufactured from wood pulp technology. Other feature found in such old paper getting brittle, is yellowing…
Paper and book conservation- Part 1
To understand and master paper conservation, one must understand the composition and manufacturing of paper. The composition of paper and raw material in its making has varied since its invention in 105 AD in China. The timeline of paper manufacturing technique and composition as understood from various sources is as follows: The invention of paper…
From Decay to Healthy strength: Archival drawings
Localized flattening treatment of a drawing
Humidification to relax stiff old documents
Humidity relaxes the paper stiffness. This relaxation is important for flattening paper that is out of shape because of folds creases etc. But, there are some questions and doubts about humidifying in the right way: How to humidify without causing a shocking reaction to the paper which has been in dry environment for ages? What…
Humidity Chamber
We Preserve Tangible Heritage
Stories of life live in the form of letters, documents and photographs even hundred years after the life leaves the mortal body!!