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

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. Continue reading

Untangling tensions, for an improved 2019

We wish you merry Chrsitmas and a better (and restored) 2019, untangling knots and tensions, at least those from parchment manuscripts. 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

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

Mysterious iron rods in a 16th limp vellum binding

No one would say that Esther feels burdened by the case she is working on: removing an old repair that was deforming some parchment manuscripts. And besides her patient attitude I can’t agree more with her when she says that … 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

Tracing paper restoration, berliner style

I never enjoy anything as much as visiting other paper restoration studios, especially if they are private. They usually bear the imprint of a personal vocation, a personality which is barely present at institutional studios. I watch the space distribution, the tools, the jars… at Hildegard Homburger’s studio. Is there a better way to nose around than becoming a berliner restorer for two days? 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

“Smart books” and bibliographic terrorism

Terrorists do not always carry explosives or mallets, nor they come from overseas, it may even be people in charge of collections. We ought to deal with them to safeguard “smart books”: books intelligently made, such that no material interfere with each other, on the contrary, they create formidable synergies. Each one has its peculiarities, its beauty and its function. They represent a compendium of technology, art, society and culture at the time and place in which they were created. 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

Who says BluTack® is ideal for papers?

BluTack in papers? Never!
Restoration of a document from industrial heritage with a stain from this adhesive, property of the Municipal Archive (Barcelona) Continue reading

Damned “sellotapes”!

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. Continue reading