Fixo+Cyano-type Feathers

Trying a new process using used hypo-fixer. This should contain silver and I have been working many experiments to see if i can release that again for some type of VanDyke print. Adding it direct will result in fainter blue. Finally tried following:

- a few ml of used fixer

- add some Copper Sulfate (not much)

- wait till it has reacted (it will become brown or dark)

- add same volume of 25gr/100ml concentration Ferric ammonium citrate (same as used for Cyanotype.

 

Paint on paper or linen

- let dry for short time

 

Expose in UV or Sun (about same time as normal cyanotype.

 

- The paper will have before exposing almost white / light green color

- after 3 minutes it will turn yello

- after 10-50 minutes it will become coffee with milk color.

 

Contrast seems to have more gradations (see the middle grass halm)

 

Development:

- I rinsed it in water with a drop of vinager (pH of my water is 8 so i have to bring it down slightly)

- for this print i added some Potassium ferricyanide which changes the color from brown to mor blue especially on the borders.

 

- Dry the print as normal.

 

 

Done