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Can you tell me the difference between non-developer incorporated emulsion paper and developer incorporated emulsion paper?
-- Anonymous, February 04, 1997
Hi. I didn't notice your message until after I had posted one asking almost the same question. Seems no one knows the answer. I use Ilford papers, some of which have developer, and some of which don't. They both take 1 minute to develop, and I've never ascertained the difference. I have the tech sheets on all the Ilford papers, and they really don't address this issue. I'll let you know if I ever get an answer. Let me know if you here anything.
-- Anonymous, March 03, 1997
I am not really sure but I got from another source that paper which do not have developer can be manipulated by diluting the developer. When the developer is in the paper, you can't do much by diluting the developer. This doesn't really make sense to me. I never dilute the developer, and what does it mean to dilute the developer, when the developer is on the paper. Are there two developers then?
Oh well. The hunt goes on.
-- Anonymous, March 04, 1997
I've always understood that the main difference between developer-incorporated papers and non dev-inc. had to do with machine processing. Kodak's Poly Rapid papers have always been made to process through machines (I'm not sure of the brand name they use these days), using special (or at least different) chemicals to get faster production times. The paper is in the actual developer for less than 15 seconds or so. The developer-incorporated papers take advantage of this by somehow kickstarting the process. I think the Ilford Multi-grade papers use the same idea, which explains the 1 minute tray processing times they recommend.
I'm not up on the current generation of papers from Kodak, especially not the RC ones. The only advantage I see is in speed (and volume production). I'm more concerned with the look of the final print, and prefer the glossy surface of the fiber-papers that are currently available. An extra minute in the developer is no big deal, and with a good wash aid, the wash times in a quality washer (check out Zone VI) are not that bad either. Ilford's Multi-Grade FB is great stuff.
-- Anonymous, March 03, 1997
As I understand it from Ilfore & Kodak reps both, the developer incorporated papers will develop quickly, just as the non developer incorporated RC ones will. But, they develop to a certain level and that is it. The Non dev inc papers are able to be processed for much longer times for fine tuning and better control, just like the Fibre based premium ones. As to machine processing, both work well in the Ilford 2150 processor, but having the option to work with the paper to bring out more subtle characteristics in a print is a big plus. Both Ilford & Kodak technical people say to use non Dev inc papers if archival quality is paramount as it has no dev inc to cloud the longevity issue. From identical images printed both ways 10+ years ago, the non inc papers look better now on display, with some fading apparent in the dev inc ones. Reality in my work and looking at every excellent fine art printer shows me that nearly everyone prints on the premium, non dev inc papers, prefferably fibre based.
-- Anonymous, March 30, 1997
DEVELOPER INCORPORATED PAPERS WERE ORIGINALLY DESIGNED FOR USE IN AN ACTIVATOR SOLUTION, NOTABLY IN THE NOW DISCONTINUED KODAK ROYALPRINT PROCESSOR. ALTHOUGH NOT AS GOOD QUALITY, ACCEPTABLE RESULTS WERE ALSO ACHIEVED IN SO- CALLED STABILIZATION PREOCESSORS [EKTAMATIC, SPIRATONE, ETC] USED IN NEWSPAPERS FOR DOING SCREENED PRINTS ON DEV-INCORP GRAPHICS PAPERS. DUE TO THE HIGH pH OF THE ACTIVATOR, THE HYDROQUINONE IN THE EMULSION WOULD DEVELOP THE PRINT. A DEVELOPER HAS NO EFFECT ON THIS PROCESS, SO NO TIME GAIN IS SEEN WITH DEV-INCORP PAPER IN A DEVELOPER SOLUTION.
-- Anonymous, March 08, 1997
Developer incorporated papers have a developer agent incorporated in the emulsion for the use in processor machines. It works like a 2 part developer with part A incorporated into the emulsion of the paper and part B is in the processor. This speeds up processing which is used mostly in commerical labs. One oof the most common papers is Kodak Kodabrome II. The II in the papers name denotes that the paper has a developer incorporated in the paper.
-- Anonymous, March 28, 1997