Re: archivalness of gum
Thanks for the clarification and your time.
----- Original Message -----
From: "Dave S" <email@example.com>
Sent: Friday, December 21, 2007 12:53 PM
Subject: RE: archivalness of gum
> I just noticed that you didn't say specifically gum, but it is the same
> many paintings of old times (consider Chinese paintings, for example) use
> animal glue, which is a form of gelatin. The glue was not purified like we
> can today, but still they last.
> When you look at those old paintings, usually the problem is that some of
> the pigments fade (for example, indigo from indigo plant rather than
> Prussian blue which didn't exist at that time, or true gamboge from rattan
> trees), or the paper itself became yellow and crispy (because of the
> content), but the pigment remain fixed on the paper by the gum/gelatin.
> > -----Original Message-----
> > From: Dave S [mailto:firstname.lastname@example.org]
> > Sent: Friday, December 21, 2007 12:47 PM
> > To: 'email@example.com'
> > Subject: RE: archivalness of gum
> > Yes, but since gum arabic has been used in painting, the
> > archivalness of it has gone through time test for a long
> > time, from hundreds to thousands of years.
> > Dave
> > > -----Original Message-----
> > > From: Yves Gauvreau [mailto:firstname.lastname@example.org]
> > > Sent: Friday, December 21, 2007 12:13 PM
> > > To: email@example.com
> > > Subject: Re: archivalness of gum
> > >
> > > Hi,
> > >
> > > Out of curiosity, wouldn't it be appropriate to also consider the
> > > gelatin and/or whatever else is used with the pigment(s) in the
> > > archivalness equation?
> > >
> > > Yves
> > >