[pure-silver] Re: Sepia Toners

Then you make me wonder.
Ihave always liked viradon, the new one is still OK with warmtone papers.
But I have never tried bleaching before viradon.... would it act as an indirect 
toner then?
Would it sulfide the images, thus producing some light brown tones (sepia like)?




Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote: 
The term "sepia toner" seems to have been used for the 
bleach and re-develop type, also called "indirect" toners. 
There have always been recommended as suitable for neutral 
and cold tone paper because they tend toward a yellowish 
brown. Since the color of the original image has an effect 
on the color resulting from toning direct toner, like 
hypo-alum, may tend to produce too cold a brown on cold tone 
papers and indirect types too yellow a tone on warm tone 
paper. The relationship is not absolute and the developer 
has a strong influence. Actually, "Sepia" is the name of a 
color so, presumably, any toner which results in something 
approximating this color is a "sepia" toner, although the 
term seems to be confined to those which produce silver 
sulfide.
    I have many variations of direct toners. Most of these 
are some version of the standard hypo-alum type but some 
have added ingredients which probably affect the image 
color. For instance, one toner, I think Defender, has 
potassium iodide in addition to the bromide. I don't know 
what effect this has but its probably worth experimenting 
with.
    There are at least two toners which have the addition of 
some gold chloride. One is the well-known Nelson's Gold 
Toner but another is a Haloid formula, essentially hypo-alum 
but with some gold added.
    Treating a print toned in any of the sulfiding sepia 
toners with a gold toner will turn them some shade of red. 
Gold toners, by themselves, produce a bluish color, the 
vividness depending on the original image color, the warmer 
the original image the more vivid the blue color.
    There are other toners which produce brown or sepia 
colors. For instance Copper toner but the image from copper, 
like iron-blue toner, is not protected from oxidation as is 
the image from any sulfiding toner. Nonetheless the colors 
available from some of the more obscure toners may be useful 
from an artistic standpoint provided one understands that 
the images may not be permanent.
    If anyone is interested in more toner formulas I will be 
glad to post them.
    I do think that hypo-alum or, especially Nelson's Gold 
toner is worth experimenting with.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 

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