U of S | Mailing List Archive | alt-photo-process-l | Re: Coating Without a Machine

Re: Coating Without a Machine

John and others,
Have any of you look at the methods used in holography, some coat there medium using a machine with which they can control the thickness of gelatin to the micron?
The device used would be relatively simple to build, it is just a rotating round table basically with a speed control.
----- Original Message -----
Sent: Thursday, January 17, 2008 9:10 AM
Subject: Coating Without a Machine

Hi Philippe, Art, Sandy,  Dick and  All,
                                                      I have found  possible, tho' amittedly tricky, a successful Direct Carbon coating procedure, by hand, with only a Hake brush or similar , probably in the same way  that Artigue and  Great grandfather Fresson and many others have found it possible.
 Whether you could make the result ''commercial'' or not depends on what price tag you would put on it. Dont forget, this is approaching the ''funny money'' level.
At any event as many Gum worker take for granted they do not use a machine for coating, unless a brush might be described as a machine.
Much depends on the type of  coatings you have arrived at. Gelatine takes much practice to control with a brush 
and, probably, more so if a machine is used.
With the complex equipment decribed below I would advise that, certainly, ''rethinking alternatives'', is definately,  in order.
 Computer French for Phillipe and others:-
J'ai eu la possibilité de réaliser ce procédé enduisant de carbone direct évidemment rusé, à la main, avec seulement une brosse de merluches ou semblable, probablement de la même manière qu'Artigue et grand Fresson première génération et beaucoup d'autres l'ont trouvée possible.
 Si vous pourriez faire le '' commercial de '' de résultat ou pas dépend de quelle étiquette des prix vous la mettriez dessus. N'oubliez pas, ceci approche le niveau de '' de fausse monnaie de ''.
À aucun événement autant de prise d'ouvrier de gomme pour accordée eux n'utilisent une machine pour enduire, à moins qu'une brosse pourrait être décrite comme machine.
Beaucoup dépend du type d'enduits que vous êtes arrivés à. La gélatine prend beaucoup de pratique de commander avec une brosse
et, probablement, plus ainsi si une machine est utilisée.
Avec l'équipement complexe décrit ci-dessous je conseillerais ce, certainement, le '' repensant le '' de solutions de rechange, est certainement en règle.
Good Luck
John- Photographist - London - UK.
----- Original Message -----
Sent: Thursday, January 17, 2008 6:22 AM
Subject: Re: Réf. : Re: Fresson = Echague Look.


I am not aware of a technique to make direct print paper by hand, that is to say, without equipment.    I only wish it were possible.

Actually Sandy's comment about how it should be possible has started me to rethink alternatives.  However, all three of the coatings needed are currently sprayed.  I have shared photos of my spray coating system during each of my APIS presentations.   The equipment includes a spray booth, a heated chamber, and a force air dryer.   At that, it is not all of what is needed for a commercial product.

Sincerely, Art