Home

Please support mflenses.com if you need any graphic related work order it from us, click on above banner to order!

SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

Carbon print
View previous topic :: View next topic  


PostPosted: Sun Aug 01, 2021 8:34 pm    Post subject: Carbon print Reply with quote

Anybody explored this? I saw a short on the local public broadcast program Oregon Art Beat which is a fantastic program giving a short segment on various Oregon artists, everything from music and dance to sculpture and quilting.
Found this on the web:
https://www.alternativephotography.com/the-carbon-transfer-process/


Wiki:

https://en.wikipedia.org/wiki/Carbon_print


PostPosted: Fri Jan 21, 2022 2:59 am    Post subject: Reply with quote

Like 1 Like 1 Choice of pigments opens a lot of possibility!

(I must've seen this before -- I have the web page bookmarked Smile)


PostPosted: Fri Jan 21, 2022 9:52 pm    Post subject: Reply with quote

Chromium(VI), here as potassium dichromate, is pretty nasty stuff - toxic and carcinogenic (lung cancer if dust is inhaled). When using it during my chemistry studies at Basel University cack in the early 1990s we were pretty careful with that stuff. Of course using vented hoods and protecting gear ...

https://en.wikipedia.org/wiki/Hexavalent_chromium

S


PostPosted: Sat Jan 22, 2022 1:56 am    Post subject: Reply with quote

Hexavalent chromium is seriously nasty stuff:

https://www.osha.gov/hexavalent-chromium


https://en.wikipedia.org/wiki/Hexavalent_chromium

I didn't actually read up on the techniquesa and materials to process these prints, I just saw how impressive and deep the images were. I figured somebody on here would know about it.


PostPosted: Sat Jan 22, 2022 10:51 am    Post subject: Reply with quote

A very nice process but elaborate. The Color Carbro process that was the next step even more. To mention; Paul Outerbridge's images in that medium.

https://www.bhphotovideo.com/explora/photography/features/historical-processes-carbon-and-carbro-prints#:~:text=A%20subtractive%20color%20process%2C%20carbro,cyan%2C%20magenta%2C%20or%20yellow.


On dynamic range, between Dmax and paper white, today's pigment ink inkjet printers do a splendid job too. With way more control and that in a convenient way. Longevity of the prints can be extremely good too, depending on the papers and inks used. Pigment particles are meanwhile all coated with a polymer and for finishing there are print protection sprays to slow oxidation of the prints even more. The black and grey ink pigments of 6-12 inkjet ink sets are also carbon based, some like the HP Vivera pigments are really neutral in color where normal carbon pigment is somewhat warm. Above all independent testing institutes like Aardenburg-Imaging.com show what the main risks on longevity are and which combinations tested well.

For B&W inkjet prints Paul Roark did a lot of developments on customised color printer solutions that are explained on his site and that are way more affordable than similar commercial solutions. One process with plain watercolor Arches paper is probably very time resistant but will have less dynamic range. www.paulroark.com/