Coffee printing

pentaxuser

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Fintan I think you are actually talking development of negs based on what I see the article is about rather than coffee staining of prints? If I am right there was a link to a site for coffee developing in which the author showed the process and the negs. So it does work. I thought I had bookmarked it and it was Photo-Utopia but I can't find any ref to coffee there. So in short I can't now find it but read on as it was via APUG that I got to read the article.

Try a search on coffee here on APUG. It should get you there. The negs and prints from the negs looked OK. The negs lack a little contrast but MG paper should get round the problem. Not really a substitute for proper developer but worth a go.

Best of luck

pentaxuser
 

pentaxuser

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Found it! It was Photo-Utopia. Its Mark Antony Smith who is an APUGer. Google Photo Utopia then on the site go to Clumps and Chumps and click onto Developing Film in Coffee. Hope this helps

pentaxuser
 

removed account4

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i am a huge fan of coffee developer for negatives.
last year i wanted to make prints with coffee as well.
i posted this thread ...
(there was a url link here which no longer exists)
and got some very good responses, with links to coffee made prints.

the person who the link you supplied refers to has a website
where he shows samples of his coffee photography, as well as
fast liquid silver emulsion. http://www.costaricacoffeeart.com/
john
 
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OP

Fintan

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Thanks for all the info and links.

The original link says;

The images are individually produced without a darkroom!
Click to expand...

Thats the bit that makes me very curious....
 

Toffle

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As Kcc008 has pointed out above.. there is an article on this process on my site, which is also featured on David Vickers' Web Magazine, Creative Image Maker www.creativeimagemaker.co.uk. (Give them a look, I'd like to support this new site) I've been doing this with my own prints for about a year. There is actually quite a range of tones available with this process.

Also, I've found very interesting results with papers that are outdated or fogged... papers that otherwise should have been discarded.

(Actually, I must admit that I'm a little excited because this is the first time I've ever seen a reference to my own work )

Cheers,
 
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cherryhill

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This sounds fun. I may give this a try. Tom, is "Arm & Hammer Washing Soda" the same thing as "Arm & Hammer Baking Soda"?
 

htmlguru4242

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Washing and Baking sodas aren't the same thing. Washing soda is sodium carbonate, while baking soda is sodium bicarbonate.

Both are, however, equally available and inexpensive at your supermarket of choice. Check in the detergent aisle for the washing soda, its called "Super Washing Soda", and comes in a big yellow box.
 

Nicholas Lindan

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Fintan said:
Just curious, how is this done?
http://www.squidoo.com/coffeeprints
Click to expand...

It looks like 'phototackification' - a process where exposure to UV light makes a surface sticky (or not sticky, can't remember which). After exposure, toner dust is applied - the dust only sticks to the UV exposed surface.

It was the basis for color proofing systems for offset printing. Dupont Cromalin (the name now used for ink-jet proofing) was an example. An advantage of the system was that it used the same pigments that were in the printing inks. It tends to be an all or nothing process so the negatives have to be contact printed through a dot screen and the resulting lith film negative is used to expose the tacky stuff.

http://www.hdm-stuttgart.de/projekte/printing-inks/b_pol-croma.htm

http://www.digitaldtp.com/HTM/Articles/2000/4_00/proofing_pt3htm.htm

In the article it looks like finely ground coffee is used as the toner.
 
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