8.19.2011

university of virginia library special collections world war one posters



i began my six weeks by writing a condition report and treatment proposal for the posters.  i then jumped in to relaxing any folds or creases (deionized water) and cleaning them using either a dry cleaning sponge or a vinyl eraser.  once they were clean and flat i began mending using japanese tissue and wheat starch paste.  two of the mends were in areas that would otherwise be distracting if they remained white, so i filled the mends using prismacolor colored pencils, matching the poster around it. 
those that had some sort of adhesive - scotch tape, masking tape, glassine, or a lining - i removed before mending.  scotch tape was removed using a hot air pencil, softening the adhesive and sliding a microspatula between the carrier and the paper.  the remaining adhesive was then rolled off using a vinyl eraser.  the masking tape was old enough that the carrier easily popped off by running a microspatula underneath.  the adhesive had hardened on the paper, but was easily removed using acetone on a cotton swab.  the glassine came off easily by applying some methylcellulose.  the lining was made up of a cotton fabric attached to the poster by a heat set tissue, made of adhesive and a thin paper carrier. on the two posters that had linings, the fabric came off easily and the heat set tissue was removed by both mechanical means and through using the hot air pencil to soften the adhesive, allowing the carrier to come off.  
one poster (life in the u.s. navy) was given a bath and lined using japanese tissue and wheat starch paste due to the brittle state of the paper.
now that the posters are complete they will be encapsulated in two sheets of mylar to further protect them from dirt and tears.

wwi powerpoint

my presentation over the poster set:
Since my first Art History class in high school I’ve been interested in art conservation and am currently preparing for graduate school for art conservation.  Among various academic prerequisites, like chemistry and studio art, of which I’ve already completed, graduate programs require many hours of hands-on lab experience.  All of the programs are very competitive, and they expect their incoming class to already have an understanding of the methods and philosophies that make the profession. 

One of the first major projects I was able to work on was for Indiana University Art Museum conserving two Thomas Hart Benton murals from his cycle showing the cultural and technological history of Indiana.  I worked with the IUAM’s paintings conservator, a graduate student from Buffalo, and another undergraduate.  We treated the last two murals in the cycle, and it was the first time I really saw a project from start to finish.  We documented them, did condition reports, cleaned them, consolidated areas of flaking (there were many), inpainted, and re-varnished. 
Earlier this year I got more experience with wall murals when I went to Peru with an art conservation trip through the University of Delaware, which has the only undergraduate art conservation program in the States.  We did condition reports for a few monasteries in Arequipa, and were actually able to work on wall murals inside a small adobe church in Orurillo, which is halfway between Arequipa and Cuzco.  At that location we cleaned the paintings and did emergency consolidation, although our main focus was on writing condition reports and treatment proposals so the town could apply for grants so professional conservators could come in and really commit to preserving the murals they have. 


Another one of the first projects I worked on was for the IUAM preparing Morton C Bradley sculptures for photographs for a book that is soon to be published by the University.  There were about 70 sculptures that all just needed to be cleaned, mostly dusted.  I also wrote condition reports for some of them.
An ongoing project I worked on for most of last fall was building storage supports for a small group of dance costumes from Africa and Brazil.  All of them were being stored in a way that was putting a lot of stress in areas that weren’t built for handling the weight of the costume.  It was really a challenge for me because while my previous experience had mostly been with cleaning one thing or another, this was about the structure of the object instead of the appearance.  They were also all different, so I had to tackle each one in a unique way.  From this photo you can see that they’re hanging in ways that provide support from a few different areas, and the one second from the left is also supported from a stand underneath it.  


I am now coming to my most recent experiences, paper conservation.  Leading up to this internship I had been spending the most lab time in the Indiana University Library ALF, Auxiliary Library Facility, that houses the preservation and conservation department.  I really worked on a wide range of things, basically whatever overflow they had or what needed help getting a head start on.  Most of what I did was dry cleaning and mending tears, but I also learned how to line maps, encapsulate, mount vellum, remove stains, wash paper, and other common practices that can be found in similar labs. 


This brings me to why it is that I’m here in front of you today.  As an effort to continually be spending time in conservation labs, I am always keeping an eye out for opportunities that really allow me to get a new perspective or skill set.  I saw the posting for this internship offered by the UVA Library back in April.  It was described as an internship to treat a collection of WWI posters in anticipation for the centennial, doing things like humidification, dry cleaning, mending, and adhesive removal.  All of these, save for adhesive removal, I had experience doing but not all within a collection.  My skills had been built up piece by piece working on a variety of different letters and maps, so the chance to apply these skills, as well as gain new ones, and see how the results build upon one another was really attractive.  When I got the call from Eliza that I had been accepted, I was thrilled.  Not only to work on such beautiful posters but also to get experience with a new conservator.


Here are all of the posters.  What you might not be able to tell from these small thumbnails is that there is a huge range of sizes.  The weight of the paper also varies between each one, and about half are coated paper, which means there’s a layer of clay on the face of the paper that the image is printed on.  They did this to make the paper glossier and add weight.  This is all fine and good until the coating gets wet, and then it will react independently of the paper – like detaching or staining.




Many of the posters had been stored in a way that caused many folds and creases.  Most of them flattened out quite easily by applying a thin line of water right on the ridge of the crease, then letting it dry while under pressure.  This is a photo of a rather large one, but many also had full sides that were wrinkled, and those took a bit more time going over everything.  Others had been rolled up, so instead of very defined ridges they were more gradual, so those, too, took more time to address.  One consideration was for the posters that were coated, I had to be careful that the moisture didn’t affect the clay coating on the front. 



Once the posters were flattened to I did dry cleaning.  This is a generally gentle treatment, just to get the dirt and grime off.  Eraser shavings, a vinyl eraser, or a dry cleaning sponge can all be used and depending on the state of the paper and the level of dirt.  For most of these posters I used a dry cleaning sponge because in most cases the dirt came up easily.  For areas that were more grimy, the vinyl eraser did a great job of removing the more difficult areas.  In the pictures above, the one to the left is before treatment, while the one to the right shows the start of cleaning in the upper right corner of the poster.


The next issue I addressed was to remove any tape or linings that were on posters.  Only a handful had tape, and just two had linings.  Although none were terribly difficult to remove, the pieces of tape were all in place over bad tears, so care had to be taken to avoid making them worse.  You might wonder why we would remove the tape, since it’s protecting a tear, but the the adhesive used for many of these can cause further damage to the poster. 
In the bottom left image we see the removal of masking tape.  The masking tape that was found on this poster was very old, so the carrier came off without any struggle just by gently sliding a microspatula underneath.  The adhesive, however, was still present and by this point had set into a hard layer on top of the paper.  This could be removed using acetone.  This treatment was a bit tricky, though, because as the acetone softens the adhesive so it can be lifted off, it also allows it to soak through the paper.  We tried a couple different ways of applying the acetone and found that the most successful was saturating a cotton swab and wetting the adhesive, then passing back over it a few seconds later to roll it off.  



Starting with the photo in the upper left corner (of the previous slide), that is the removal of glassine.  Glassine tape is made up of a paper carrier with a water soluble adhesive.  This slide shows paper tape, which also uses a water soluble adhesive.  This makes its removal pretty low-key.  Methyl cellulose is applied, which is  a derivative of cellulose, a plant fiber.  When mixed with water it creates a gel that allows controlled application of moisture over an area.  So, in this case it is handy because it wets the tape without quickly soaking through and saturating the paper underneath.  After a short wait, the carrier easily lifted off and another light application to the remaining adhesive allowed the rest to be cleaned off with a cotton swab.

These photos show scotch tape removal.  Scotch tape is a plastic carrier with a pressure sensitive adhesive.  This is a bit more involved to remove than glassine.  A hot air pencil (literally, a metal pencil shaped end on a hose attached to a machine through which very hot air is blown) is used to the soften the carrier and adhesive so a microspatula (shown here) can be worked between the tape and the paper below.  Once the plastic carrier is removed much of the adhesive still remains.  This can be worked off using a vinyl eraser.  In this case one needs to be very careful not to tear the poster further, since the adhesive and eraser put some strain on the paper.

This slide shows lining removal.  Two of the posters had been lined with a cotton fabric backing attached with a  heat set tissue.  This is a pretty dramatic method someone used to protect the posters by making the paper stronger.  The cotton fabric came off easily, just peeling off.  The tissue, however, was more difficult.  It is a paper carrier with heat set adhesive, and initially I began by working a microspatula in to areas that were lightly adhered.  This technique worked to an extent – it separated much of the tissue, but was pulling up very thin layers of the paper in some areas along with it.  After some time trying to work around areas of stronger adhesion I turned to the hot air pencil.  In some cases, tissue like this wouldn’t respond to heat again, but in this case I was lucky.  It softened the adhesive enough for themicrospatula to slide easily between the paper and the carrier.  In this case, once the carrier was up, the adhesive would cool again and reset, so there was nothing sticky left behind like in the case of scotch tape.  Also, the adhesive used here poses no further threat to the paper, so the small amount left behind wasn’t an issue.


The final photo to the bottom right is of lining removal.  Two of the posters had been lined with a cotton fabric backing attached with a  heat set tissue.  This is a pretty dramatic method someone used to protect the posters by making the paper stronger.  The cotton fabric came off easily, just peeling off.  The tissue, however, was more difficult.  It is a paper carrier with heat set adhesive, and initially I began by working amicrospatula in to areas that were lightly adhered.  This technique worked to an extent – it separated much of the tissue, but was pulling up very thin layers of the paper in some areas along with it.  After some time trying to work around areas of stronger adhesion I turned to the hot air pencil.  In some cases, tissue like this wouldn’t respond to heat again, but in this case I was lucky.  It softened the adhesive enough for the microspatula to slide easily between the paper and the carrier.  In this case, once the carrier was up, the adhesive would cool again and reset, so there was nothing sticky left behind like in the case of scotch tape.  Also, the adhesive used here poses no further threat to the paper, so the small amount left behind wasn’t an issue.



Apart from the obvious gains, like improving many of my skills and adding to my repertoire of treatment methods, I have definitely come away with other benefits as well.
Before I had even finished one poster I realized that my time management skills were in great need of help when it came to conservation treatments.  At the beginning of the project I wrote a condition report and treatment proposal for the group, including my estimate of how long each task would take for each poster.  Nine times out of ten I was off by at least a couple hours, both overestimating and underestimating the time.  This sort of thing is pretty essential to get a grip on, especially if I ever do private work.  Individual clients and museums alike all appreciate knowing how long something will take to be completed.  At the start, my ability to make this sort of estimate was not very impressive, but as I went along I definitely improved at predicting when I could finish.
Another great benefit of working in a few different places is being in contact with a new set environment.  Although I had been in a university library preservation lab before, at UVA the setup is different, the hierarchy of staff is different, and even some of the procedures are different.  Especially as a pre-program worker, it’s essential for me to see all of the different areas this career might take me.  In between working on the posters, Eliza brought me with her to see what she did when she wasn’t in the lab, from assessing books to be put back in circulation to consulting with the university’s architecture conservator.  I was able to get an understanding of what her job consists of, which is different than each of the other conservators I’ve worked under. 
Overall, this experience has been incredibly valuable to my professional and academic career, and I can’t express enough how thankful I am that UVA supported this internship position, and I hope that it continues in the future so others like me can gain such fantastic hands on experience and first hand exposure to the field.

8.15.2011

charlottesville: week 6

final week.  good timing with everything, it's all wrapping up nicely.

the bath
the felt
DAY 1:
all of the heat set tissue is off the devil dogs poster and i'm almost finished mending it.  i also washed another one and it was quite satisfying to see the yellowish water run off of it.  it took two rinses, and now it's drying overnight between two very thick pads of felt.  this one will need a good deal of mending, but depending on how much time is left it might get a lining instead

DAY 2:
the poster we washed yesterday still has some wrinkles in it, so i wetted it down and put it back under the felt with some added weight from plexi.  i also started removing the heat set tissue on the second lined poster, and got about two thirds off.  no new ones finished, but definitely made progress with the last set.

DAY 3:
the presentation went well!  more work mending and removing the heat set tissue

DAY 4:
today we lined the "life in the u.s. navy" poster, the one that was given a bath on monday.  here are the steps (so i don't forget them):
1) position poster on a large sheet of mylar, wet down.  take care to make sure there are no wrinkles and all of the pieces line in properly, as the paper will continue to expand as it gets wet.  for this poster it was a bit tricky due to the many pieces that had been torn or were completely detached..
2) position a sheet of japanese tissue (weight depends on the paper) on another oversize sheet of mylar, coat with a layer of thinned wheat starch paste (about the consistency of whipping cream) starting from the center and fanning out.  make sure to get out any wrinkles or bubbles that appear
3) apply paste to the poster, again working out from the center and removing wrinkles and bubbles.  a soft brush works alright for this, but a roller works particularly well to get out wrinkles
4) pick up the mylar+tissue (it helps to have another set of hands) and carefully lay it on top of the poster+mylar, making sure that the whole poster is covered by the tissue and there are no large air bubbles.  once down, work out any small air bubbles with a bone folder, although be careful near areas that are detached because they will sometimes move as paste is pushed out
5) remove the top layer of mylar, then cover the mylar+poster+tissue with reemay and blotters, put weight on top (plexi and bricks) and let it sit to dry for a little while (we waited about half an hour)
6) take off weights and blotters and replace with gortex 

DAY 5:
finished the masking tape adhesive removal, checked on the lining (still a bit damp) and wrapped up the remaining mends - all finished before lunch!  also went with eliza to instal some books in a new exhibit at the art museum, and she let me strap one down with mylar (they're pretty sturdy books, otherwise a polyethylene plastic would've been used).  it went by so fast, but was really the perfect amount of time for the number of posters and how much work was needed for each.

8.10.2011

charlottesville: week 5

DAY 1:
tear mending, starting on the coated posters so more care with the wetness of the paste and such.  the coated ones are a bit nicer in ways because of the thickness of the paper allows some approach (very carefully so as not to disrupt the clay coating) from the front - attacking tears and folds from both sides.

DAY 2:
tear mending today, a couple more finished.  i did a fill on one of the posters that had a large loss.  i used prismacolor colored pencils and matched the poster color in that area over the japanese tissue used for the mend.  it isn't meant to fool anyone, but it lessens the distraction of what would otherwise be a large white chunk in the middle of a block of color.



DAY 3:
tear mending and some glassine tape removal!  poster #17 complete, only 7 more to go.  although the last ones are the trickiest (those lined ones are still waiting... )

DAY 4:
more mending, some paper tape removal too




DAY 5:
breakthrough with the heat set tissue!  i am lucky and it turns out the adhesive softens in response to heat, so the hot air pencil works on it.  it takes about as much time, but the result is better.  20 posters officially finished, 4 more to go!

8.02.2011

charlottesville: week 4

DAY 1
more mending!  tentatively finished two more posters (i'll check them over tomorrow before the final word), which brings my grand total up to 5!

DAY 2
architecture conservation.  i had never really considered it before.  i guess the separation between architecture conservation and painting/paper/object conservation in graduate schools in the states created a similar separation in my head.  i'm sure you aren't surprised, but this isn't quite true.  as with everything, there is overlap.  practices and philosophies might differ a bit, but it requires the same sort of sensitivity to the history of things; buildings or books, paintings or tapestries, etc.
this morning eliza and i met with the campus architecture conservator to look at some in-situ wallpaper from the early 19th century.  it was no longer there, however.  the building it was in is used as housing for deans, upper administration, etc. - still fulfilling the original intentions of the grand thomas jefferson.  there is a whole list of houses and rooms like this, original buildings from the university's beginning, still in use today.  as can be expected, they've all been through many restorations and modifications, and while it would be nice to imagine they are still as they were all those decades ago, modern society's standards of living require some of the more advanced things, like electricity and central air.  styles change as well, along with the need for things like servants quarters.  so, many things have been removed or replaced or repurposed.  this wallpaper, for example, disappeared just since friday.  where it was is now a nice white wall.  this sort of thing is understandable - workmen are instructed to do their job, they do it, but not all of the instructions are relayed or understood.  most buildings do not have century old wallpaper that is in pieces that needs to be saved.  many people would think it's just old, and the wall would look cleaner if it were removed, so they remove it.  and they did.
however, the morning was not lost.  we were still given a tour of a renovation of one of the pavilions and got to see clues to its previous lives - windows turned into doors with staircases built over the front, collected debris consisting of old beard perfume and blown glass, floors that were originally 10" deeper...  very interesting stuff...
and in the afternoon i finished mending another poster, which brings the count up to 6!




DAY 3
more tear mending!  more posters finished

DAY 4
more tear mending and some scotch tape removal.  to the right is a particularly chewed up corner (from the US Marines Want You) and even more posters finished - final count up to ten