A Safe and Efficient Method for Silver Mirroring Removal in Photographic Conservation

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. Continue reading

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. Continue reading

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! Continue reading

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. Continue reading

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! Continue reading

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. Continue reading

The diplomatic neutral colour

What is a neutral colour?
Is it a pH=7 colour? A transparent colour? Greenish… brown? An oil colour… or maybe acrylic?
Conservators mean by it: “I will paint the missing area with a single colour which you won’t see much”. It can be green, purple, pencil coloured or either with acrylic paints… Controversial is on the cards and whatever we do, even when not doing anything at all, conservators know that our decision will not suit everyone’s taste. Continue reading

Conservation of ‘The Disasters of War’, by Goya

There are all sorts of projects, and when Mr. Goya knocks at the door, the red carpet is ready to receive him at the studio: Please, come in!
The Disasters of War by Francisco Goya arrived at the studio in a fairly intact condition, with its 80 etchings, corresponding to the very first edition (in later editions two more etchings were added, making a total of 82). This first one was edited in 1863, more than forty years after Continue reading

“Customized” conservation with Richard Wolbers

Fellows of joys and sorrows, conservators, here is why I am so excited with the “Cleaning workshop: Paper bathing/stain removal”, given by Wolbers: The idea is to make every conservation treatment a kind of custom-made dress for each particular object with a minimal initial investment. He speaks about solvents, gels, surfactants, conductivity and pH.
Nor in my wildest dreams had I imagined such a close, easy and useful chemistry. Thanks a lot Richard, we owe it to you. Continue reading

This document will self-destruct in 30 secs!

Or how to remove pressure sensitive tapes, without removing them We have spoken about bibliopaths, about misuses and how to eradicate its effects… But, what happens when the artefact itself causes its own degradation? It’s not a spy movie’s myth: … Continue reading

Posters conservation: virtual inpaint vs “virtuous” retouching

The bike riders from Sants reached my studio squeaking, rather than cycling!
Tears, foxing, discolouration, brittleness, acidity… All these damages have been carefully restored in order to let the splendorous riders finish line at the Municipal Archive of Barcelona. They are almost centenarian… and yet they ride wild along the repository! I’ll explain which beauty and health treatments these illustrated posters have passed through Continue reading

Bibliopaths: The case of the lacquer binding

Are we supposed to fear bibliopaths? Or maybe we should give them an award? Who are they? Atention! Because they can be among us, or we might even be one of them?! I invite you to read the Case of the Lacquer Binding to know more about them Continue reading

I have mold! (…or is it foxing?)

Foxing is mould… or not?
One of the main concerns in archives and libraries is the presence of mould. Not surprisingly: it develops without fanfare, and when it is detected, an irreversible loss of information might have taken place. Before pulling your hair out, you should identify whether the symptoms actually reveal fungal activity, or not. Not an easy assessment. Continue reading

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. Continue reading

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. Continue reading