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Subject: Leather dyes

Leather dyes

From: Mark Andersson <markandersson>
Date: Monday, February 23, 1998
I have recently heard from a conservator I highly respect that he no
longer uses Ciba Geigy dyes due to his concern over the stability or
colorfastness of their dyes.  Instead he is using Luganil dyes with
a fixative called Bastamol.  The Luganil and Bastamol are BASF
products which do not appear to be currently available in North
America.

Which begs the question:  Have others noticed problems with
permanency or colorfastness with Ciba Geigy dyes?  Have those who
have used both their product and the BASF product noticed a
qualitative difference between them?  And, finally, is it worth the
difficulty of ordering the Luganil and Bastamol from Germany?

Mark Andersson
University of Washington

                                  ***
                  Conservation DistList Instance 11:72
                Distributed: Tuesday, February 24, 1998
                       Message Id: cdl-11-72-012
                                  ***
Received on Monday, 23 February, 1998

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