Hi Chris et al,|
Maybe you remember the two images i send sometime ago:
an oilprint versus a gumprint.
For the gumprint i used a pigment 'kalkrood' (must be clear that it is 'chalk red').
On 23 mei 2009, at 4:38, Christina Z. Anderson wrote:
The print on my website is a gum print of Demachy's.
Here is a URL for powdered pigment, Indian Red, and Sennelier red ochre.
----- Original Message -----
Sent: Friday, May 22, 2009 7:14 PM
Subject: Re: Demachy and red chalk
Chris, I think you are right. If I remember, the Red Chalk or Sanguine was a special chalk that had a lot of iron oxide in it.
Were the Demachy prints in this color gums or photogravures?
Try Venetian red, Indian red, or red ochre. It was a red iron oxide pigment if I remember correctly. One recipe calls for 3 g. Venetian red powder to 1/2 oz. gum. Another calls for a pigment called "light red" which I know was available about 10 yr ago anyway. But Venetian Red is a nice brick-y color that you'd be happy with. My notes say this: "For instance, a Venetian red or red ochre color was used to approximate the rust colored conte crayon portraits."