This was a joint project with an artifacts student who graduated the MAC program in 2017. She and I worked on the photo-documentation and treatment proposal. As she was close to graduating and finishing up her research project I carried out the analysis of the fibers, approved treatment on the object, and returned the object to the client. The main concern for this object was the use of pressure-sensitive adhesive tape used to adhere the cloth to a masonite backing board. The adhesive had cross-linked and become embrittled endangering the object. The masonite had also been off gassing and may have caused yellowing of the textile. It was imperative to remove the backing and replace with an appropriate backing support. Once removed through mechanical means, fibers samples were taken from the verso in order to analysed through optical microscopy.
The majority of the fibers were wool with the exception of two samples as see on the right which had been cotton (pale yellow thread on the textile), the ultramarine blue and indigo fibers were synthetic as seen on the right above. A small portion of the base wool had been exposed and samples were taken to compare damage done on the pile of the woolen shroud. These results can be seen on the bottom of this text, showing the pile fiber being more frayed and broken where as the base weave had been stable and showed no areas of degradation of the fibers.
The treatment for this object is as follows:
The after treatment image of this object can be seen to the immediate right. The total treatment hours for this object was 60 hours including sampling, analysis, removing around 40 pieces of tape, and constructing the new backing board.