Digital BW, The Print

I'd like to put in some more information.  I've done my own newspaper test here in 
Chicago on the same HPR as Jim Doyle. The Chicago Trib is as polluted as it gets most 
likely . . . :-).  No yellowing so far, but we'll see.  However, I have a client who prints 
entirely on Hahnemuhle Photo Rag (with Piezography MB WN inks) who has in the past 
gotten yellow prints. This is from pollutants. They were exposed to the air and that's what 
happened. We have to realize that these prints are not photographs persay.  They're 
physically more like charcoal drawings on newsprint or watercolors on watercolor paper.  
We treat those pieces of work differently than tough silver prints. I'm working on starting a 
clause in my invoices and statements that talks about print dings, print fading, etc.  All 
this stuff is way different than "traditional" photography. There's always trade-offs.

I had another client come in recently who had run Piezography on Sommerset and 
wrapped all the prints up in brown (woodpulp) paper and then taped that roll shut with 
masking tape.  Three weeks later the black had gone totally red, the inks had reticulated 
apart from eachother (god knows how that happened) and where the masking tape was, 
there were deep blue patches.  This blue and red stuff was an Iron oxidation of some sort; 
how Iron came into play, I don't know.  The second edition (the one the gallery has) is fine.  
They were printed at the same time but were kept behind glass and away from chemicals.

All of my current clients know this about digital prints. It's a major consideration when 
getting into this whole shibang.  It's also something that's pushing me away from being in 
Chicago and driving me back home to Vermont. There's way less pollution out there, you 
know?


ps: way back when in the beginning days of Hahnemuhle Digital Coatings, some of their 
papers came yellow out of the box. I found one such box like that.  It was rather alarming. 
That's why they changed their box from brown wood-pulb paper to the white acid free 
stuff no dought . . . Just a conjecture there.

Walker Blackwell
Black Point Editions, ltd.




--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Jim Doyle" <jdoyle1713@c...> 
wrote:
> Hey Guys.. I Just did the same test as when this thread started..I would
> like to know what newspaper it was..because my test on the Phila Inquire..
> did not yellow at all..
> I did this on Sunday right after the post..I also did it with the Innova
> Smooth Cotton and neither one has turned yellow yet..I will keep every
> posted on my results..
> 
> Cheers
> Jim Doyle
> 
> J.Doyle Enterprises L.L.C.
> 114 Old Orchard Rd.
> Cherry Hill, NJ 08003
> 856-424-8660
> http://www.shadesofpaper.com
> 
> 
> 
>   -----Original Message-----
>   From: john dean [mailto:deanwork2003@y...]
>   Sent: Tuesday, October 26, 2004 10:09 PM
>   To: DigitalBlackandWhiteThePrint@yahoogroups.com
>   Subject: [Digital BW] Re: Toxic yellow photorag!
> 
> 
> 
>   -Well that is very interesting indeed, that Photo Rag could absorb acid in
> such a quick and
>   devistating way. This means it is even more absorbant than we even dreamed
> of. These
>   rag papers are like sponges. Newspaper is one of the most acid materials
> out there. They
>   are made of the cheapest wood pulp that not only has radical ph but also
> probably
>   contains other chemicals used in the manufacturing of the newsprint
> itself. Would love to
>   hear a chemist's opinions.....
> 
> 
> 
> 
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