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Subject: Synperonic N

Synperonic N

From: Soren Ibsen <soren.ibsen>
Date: Monday, March 13, 2000
Elizabeth Wild <ewild [at] mov__vic__gov__au> writes

>I am a conservator in Australia. Synperonic N has not been banned
>here yet but our lab has decided not to use it anymore. I am trying
>to find out what other conservators are using and the results. Does
>anyone have any information about the recommended alternatives to
>Synperonic N: Synperonic A7 and Synperonic 91-6? Has anyone used
>and/or tested them? Where can the alternatives be purchased?

Earlier I used Synperonic N for washing the paper. Later I replaced
it with Texapon Z (Sodium Laurul Sulfate), which is the same as you
find in tooth paste.  I use 1 gram of this soap to 1 liter warm
water. After 10-30 minutes, I rinse the paper in cold water. In 1992
in Hungary Margaret Hey told me that soap or detergents should not
be used in paper conservation because they lubricate the fibres, and
therefore weaken the paper.  Instead she recommended to soak the
paper in 50% alcohol and then wash the paper in water.  Now I only
use Texapon Z when the paper are very dirty, and find that it is
better than a bleaching agent.  Perhaps Texapon Z can be useful for
textile conservators?

Soren Ibsen
Book- and paperrestorer
University Library of Trondheim
N-7491  Trondheim

                  Conservation DistList Instance 13:47
                  Distributed: Tuesday, March 14, 2000
                       Message Id: cdl-13-47-004
Received on Monday, 13 March, 2000

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