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

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

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. 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

“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

Chemists and conservators: a love/hate relationship

A cathartic experience: There’s nothing more exciting for a conservator such as participating in a chemistry course. We go there with a certain respect (or maybe fear) and the will to be acquainted to a new miraculous reactant that will change our life.
The poor conservator will poorly be able to discuss one to one with a chemist, either about the reactions that happen during the restoration treatments or along the inherent ageing of the artefact; and yet we must call the chemist into question and keep this dialogue alive. But thanks to Richard Wolbers I made peace with chemistry and their scientists. 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

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

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. Continue reading

Nanotechnology & chemical gels applied to paper conservation

What are nanoparticles and chemical gels? Latest technological advances in restoration of archive material is about nanotechnology and chemical gels and so it is studied in the paper & books section of the IPCE Continue reading