Sandy,
            From 
my own practical experience the making off a successful Direct Carbon paper 
is, by far, much less of a demanding project than making Carbon Transfer 
Tissue.  I feel that your beliefs are rather overestimating what, 
exactly, is required to make a successful Direct Carbon paper. As you 
point out,  your belief is that  Art Chakalis has , 
'' plenty of technical expertise'',  in these matters and 
, after all, he did buy a patent to prove it.  To me, his images 
look pretty good  altho' I have only seen them on monitor screen. 
 
 I have never, as yet, even in his books, seen a 
reproduction of a  Direct Carbon  Fresson print by Luis Nadeau. But 
the work of Jose Ortiz Echague is entirely another matter.  
It would be difficult to disagree that there was something viable 
going in that direction ?
 
                     
 I have made Carbon Transfer Tissue, myself, and so have had a fair chance 
of comparing the effort and ''complications'' involved in producing both types 
of carbon coated papers.  The results I have satisfy my own desires just as 
your work satisfies Dick and paying customers, your followers and 
yourself . So, that's OK, isnt it ?
 
                        It 
is my belief that the actual formulae for  ''Fresson Type''  
Direct Carbon paper emulsions is what differs, drastically, from many of the 
other D/C papers marketed around the end of the 19 C. Also, the  
bleach method of development for  Arvel Fresson paper was 
unique.  This Arvel paper was made and marketed for fifteen years prior to 
World War Two so that, I guess, was finacially viable, over that 
period, for them.
 
There are a burgeoning number of 
photo artists making Gum prints because the knowledge 
and materials are readily available. With potential Direct Carbon 
printers it is another matter. The knowledge is missing and it is this 
information that is really  viable .
 
                      
Whether Direct Carbon paper will ever be manufactured, again, commercially, 
remains to be seen. Visualizing who would buy this proprietory product is not 
difficult :- 
Universities and art colleges/schools with photo 
faculties, photo printers  working for photographers in the field of fine 
art who have knowledge of both digital and trad, basically.  And, not 
forgetting the domestic hobbyist, to name a few.
 
There is some financial potential in writing about 
how pointless it is to consider the viability of  making Direct Carbon 
paper.
 
''Use what you've got and use what you ain't got, too.''  
( Seymour Krim . 
 ''  Making It !   The Beat Scene'' 
 1 9 6 0 )
 
Best wishes in your endeavours.
 
John - Photographist - London - UK.
...........................................................................................
Sandy King  wrote : -
 
John,
I simply don't believe that making a good quality direct carbon paper 
requires a great deal of technical expertise. Back in the early 20th century 
there were literally dozens of such papers on the market, most made by fairly 
low tech operations. Based on my own knowledge of the way some of these papers 
were made the technical aspects don't appear any more complicated than making a 
good quality carbon tissue for carbon transfer.
My own belief is that Dick Sullivan and a number of other people, including 
Luis Nadeau and Art Chaklis,  have plenty of technical expertise to produce 
such a paper if they thought it would make money. The fact that it ain't 
happening tells me all I need to know.
Sandy King
At 3:27 PM +0000 1/12/08, John Grocott wrote:
I feel sure that if Dick 
  Sullivan had the know how and technical expertise to make and market a Direct 
  Carbon paper which would respond exactly as described in many published 
  accounts of the development procedure, including that which is in Philippe's 
  expensive book, Dick would risk investing in it.
But that is Dick's 
  business, and as my Grandfather always said, ''Mind your 
  own business and you will have a business to 
  mind.''
The correspondence on this 
  List, by now, must be reaching many thousands, if not millions, of readers 
  including educators, students, entrepreneurs, gallery owners, museum curators, 
  art photo investors, hobbyists, photo journalists and technical authors and 
  publishers, not to mention w/s organizers of photo alternatives, so the 
  potential money making aspect of such a highly secret process seems to be 
  quite viable.
Think 
  on.
Optimistically.
John - Photographist - 
  London - UK