Removal of Paraloid B72 / tulle (polyamide?)

[Laurence Becker <Laurence.Becker@xxxxxxxxxx>]

I am working on a painted flag made out of weighted silk from the 19th
century. The flag has been separated in a previous conservation and not
joined  together after. One side of the flag got an adhesive backing
with a very stiff and inflexible tulle (polyamide?). The adhesive which
has been used is Paraloid B72 (Acryloid B72) from Rohm & Haas. The
solution of the adhesive was not applied evenly on the backing fabric.
Now in some areas the backing is not attached to the flag anymore; in
others the flag is so impregnated with the adhesive that the structure
of the tulle is visible on the front side of the flag.
Due to the chosen adhesive, the application method and the backing
fabric, the flag is in a worse state now than it was before its previous
conservation. For these reasons, I want to separate the backing from the
flag.
I have now some questions concerning Paraloid B72 / tulle (polyamide?)
and removals of backing in general:

1. Did you see or treat objects which have been backed using Paraloid
B72 and /or tulle (polyamide?)?
2. Do you know if Paraloid B72 has been used for other applications in
the Textile conservation (for example as a consolidant)?
3. Did you remove a backing before? What kind of materials were used for
this backing?
4. What kind of removal method did you use to separate the historical
textile and the backing
5. After the removal, did the historical textile get a backing again and
which kind of materials where used then?

Thank you very much for your help!

Laurence Becker
Deutsches Textilmuseum Krefeld
Andreasmarkt 8
47798 Krefeld, Germany
Laurence.Becker@xxxxxxxxxx