Find below the blog posts that are mainly related to paper and book conservation techniques:
Find below the blog posts related to conservation techniques:
Premiere of the video of the conservation treatment of a map
Premiere of the video showing the full conservation treatment of an oversized hand-coloured map, varnished and lined on a canvas. Do not miss it! Next Thursday 27 at 4pm CEST (UTC+2).
A midnight paper conservation dream
A lockdown is kind of stoping any activity, and that is what I have done, a stop-motion video, showing the full conservation treatment of a paper document.
Silver Mirroring Removal in Photographs (Video)
At last a deffinitive method, safe and efficient for silver mirroring removal in historical photographs. This new treatment will change the way the issue of silver mirroring removal has been addressed in photographic collections. See it in this video and value the results.
Housing as a (quite desperate) conservation resource
New artwork arrives at the studio to be ready for an exhibition: pressure, limited time, bleeding inks... Could it not be some other easier and more showing off artefacts? Here's what I do when I don't seem to find much to do: Tape removal, and failing to flatten under tension with magnets... Mounting the artwork on a housing that secured an even tension on the artwork during the exhibition, was the last resource.
Silver Mirroring: Its Importance, Formation Process, and a New Elimination Procedure
New Elimination Procedure for Silver Mirroring. Silver mirroring is a type of deterioration that appears in most gelatin developing-out paper (DOP) historical photographs and black-and-white films. Its treatment involves so many problems that it has often been ruled out. In this article we present a new and simple elimination procedure, which is efficient and offers stable results in the long term. The study of the causes of the formation of silver mirroring sheds light on aspects that had been little explained so far: the fact that this type of deterioration always appears on the surface of the image leads us to consider a mechanism of transport of electrical charges.
Unlocking St. Anthony’s locked manuscript
"Tony, Tony, come around, something’s lost and can’t be found!" Some manuscripts require more than just manual skills to succeed in their conservation, and so we prayed to Saint Anthony to help us unlocking the bookbinding, whose key had been lost forever. Certainly not many renaissance bookbindings have an iron safety lock in their covers and thus this extra holly help was deemed quite necessary. The prayer didn't provide any key, but at least a satisfactory conservation solution was achieved!
Gels, microemulsions and nano-systems applied to pressure sensitive tape removal: latest updates
Tape removal, chemical and physical gels, microemulsions and much more. Review and abstract of the conference "Nanosystems. Application to tape removal on cellulosic supports,", which took place in Madrid (Spain), on June 6 to 8th, 2018; within the context of NanoRestArt, the european Research and Developement project.
Sōkō conservation for oversized sketches by Sorolla
Sorolla sketches represent the spontaneity, the genius and the creative stage for its own right. Their conservation shares with them this essentiality, the minimal intervention character. The restoration has adopted japanese tools and techniques, a paper conservation at the most eastern style. Or not that utmost, since the Karibari was replaced by a wooden board. Eastern or western, the restoration of the gouache sketches has been truly remarkable, and you'll have to read it to know why.
Endbands, headbands and ties
The headband to a book is like the tie to a suit: they both give their owner the chance to stand out. It is like the icing on the cake of the binding, and gathers the bookbinder's proficiency and taste. We'll discuss their aspect like in a Vanity Fair, and go beyond: What are they meant for? and why stuck-on headbands are less cared by conservators than sewn ones? Should we replace them or conserve them? The untrained eyes will look at them with more interest now, because -just like ties- there are headbands for all tastes!
Hold on and suck in, Miss Scarlett!
Removing a plastic corset from a manuscript
A personal story, a historic manuscript, a crazy laminating machine and a final outcome. We'll discuss about synthetic polymers, sorts of laminations and encapsulation. All these ingredients are seasoned with PFTE, TFA, HFIP, PE, DMSO, PET... cling, dong and BOOM!... An explosive -but most irresistible- cocktail.
Flattening under tension on paper and parchment conservation
Wrinkles and folds are a usual damage in documents made of paper, cloth or parchment. The common way to restablish these supports to its original condition is by pressure: under weights or in a press. When the paper has a relief which must be preserved, it is then not possible to use pressure, as it would smash this relief. Flattening under tension may be an interesting alternative on certain occasions or when a selective flattened is needed. It takes advantage of the natural shrinkage of the paper when going from wet to dry, so that the tension is given by the same paper.
New conservation methodolgy to retrieve lost flexibility to brittle tracing papers
Approach to a new methodolgy to retrieve the lost flexibility to brittle papers. Tracing papers -so usual among technical drawings- have in common their transparency, but there are significant differences in the process to make them. The properties and behavior will be very different then. Impregnated papers, for an instance, were applied oils or varnishes to provide them translucency. Explanation restoration of several drawings in which the varnish was removed to replace it later.
Which damages cause sellotapes? Can we release documentary heritage from these fatty strips? Explanation for the degradation mechanisms of this historic "remedial" tapes that we can find in documents of all kinds, and restoration possibilities in each case.
Conservation of school poster from spanish civil war period
This map represents the typical scholar posters: with its wooden slats to roll and hang, lined on the back. It was very common to varnish them with shellac to waterproof and protect them from abrasion. This one was made of two pieces of printed paper, sticked together along the central horizontal stripe. It is from 1936, spanish civil war was barely breaking. Removing the old varnish has allowed to repare other minor damages: tears, gaps and wrinkles. But most important is that the new varnish is not oxidizing nor yellowing. As it is very flexible it will not crack in the future.
Minimal intervention on “Serra & Balet” documents
Standard treatment of minimal intervention on documentation with slight damages: Disinfection, removal of clips and staples, consolidation and folder to fit.
Gone with the wind
I don’t like much having war books, but I must admit that this one is particularly beautiful. The velvet binding seemed to me a challenging issue on the restoration, which did not have major complications besides this. I show the restoration of this book because of the headaches it has given me when solving the lost areas, the wooden work. The considerable losses on a laborious woodcarving work, and the lack of originals of many of the missing pieces fairly complicated the subject (the shields on the corners were different).
archive or library
printed stamp (see TECHNIQUE)
plans, maps, architectural or technical drawings
acidity / oxidation
bibliopath - graphopath
pests & paper eaters
pressure sensitive tapes
coated paper (art paper)
onion skin paper
wood pulp paper
polyethylene terephthalate (PET)
dimethyl sulfoxide (DMSO)
polyethylene glycol (PEG)
THEORY on cons. & rest.
flattening under tension
four flaps envelopes
neutral colour in-paint
climate (HR, temp.)
reinforcement - consolidation
backing with fabric