From: Breukel, C. (HKG) (C.Breukel@lumc.nl)
Date: 01/22/03-04:08:47 AM Z
Judy,
In my experience I second Eric's comment below, I also titrated my
SilverNitrate solution: it isn't hard, but takes time, effort and equipment.
Also the total volumes aren't that excessive. But OTOH if your friend is
happy with the procedure: that's perfect ofcourse, in my experience brush
coating is much more error prone. Oh I might mention that I double coatwith
albumen (a bit annoying, you have to harden the first albumen coat, else it
floats off), but the results are so much better: from aenemic to raealy nice
shadows (dark brown after gold)
best,
Cor
> -----Original Message-----
> From: Eric Nelson [mailto:emanmb@yahoo.com]
> Sent: Wednesday, January 22, 2003 9:51 AM
> To: alt-photo-process-l@sask.usask.ca
> Subject: RE: coating albumen
>
>
> For anyone doing any serious amount of albumen
> printing, i would recommend folowing Reilly's methods.
> The volume isn't that hard to maintain and doing a
> titration analysis once every 100 or 200 prints is no
> fun but worth the effort.
> My Silver Nitrate solution is in a clear glass milk
> bottle w/a 2 hole stopper for the glass tubing to
> "blow" out the solution as illustrated in Reilly's
> book. The Kaolin rests on the bottom of this bottle
> and I can shake it up anytime the solution starts to
> get brown.
> I followed Reilly's instruction for the titration
> analysis of the solution and it worked fine. I would
> do it twice to make sure I didn't screw up. Gawd knows
> I'm no chemical engineer but can understand these
> fundamentals. A calculator is necessary to do the
> math though.
> Also the rule of thumb of replenishing the solution w/
> 24% silver nitrate works fine too for a while until
> it's time to analize the solution when things aren't
> working as they should.
> Silver nitrate is cheap too
> Eric
>
> > Hi Cor,
> >
> > He's decided to brush the silver nitrate, and I
> > don't blame him -- a tray
> > takes an awful lot of volume and in its own way more
> > mess. Christopher
> > James says the same thing, by the way -- that
> > floating takes too much
> > solution. It also turns out to be more complicated.
> > For instance, Mike
> > Robinson talks about replenishing, and kaolin to
> > prevent measles, and once
> > you start replenishing you don't really know what
> > strength you've got, so
> > all your values are up for grabs...etc. From here
> > anyway it really does
> > look like brush coating or hand coating are on
> > balance simpler.
> >
> > Robinson also says float your 8x10 paper on 250 cc
> > of 12% solution. Could
> > you float paper on 250 cc in an 8x10 tray? My
> > experience with tray float
> > is you need about a half inch so it doesn't hit
> > bottom... either way
> > sounds the trickier route.
> >
> > Actually, friend is doing pretty well, except more
> > spoiled coats than
> > he likes, tho from what I read, even tray float has
> > many mystery faults.
> > (Has anyone heard of Dick George? I found a nice
> > paper on the topic by
> > him in my file -- looks like it probably came from
> > the list a long time
> > ago -- can't believe I didn't make a note of who or
> > how. Anyway, if he is
> > to be believed, the medium is not & never has been
> > so simple.)
> >
> > So I gather that no one has used the "magic brush"
> > for albumen ?... It may
> > be time...
> >
> > thanks Jack about the blanchard brush.... sorry I
> > mixed you up with Sandy
> > -- it's probably the San part, I was thinking Sandy
> > instead of
> > Sanfrancisco.
> >
> > But when you say a "pile" fabric, is that something
> > like a plush? That's
> > in style now, so should be possible to find. Of
> > course I had to walk 2
> > miles to get a stitch ripper when my old one
> > disappeared (maybe into the
> > cracks between the floor boards ?). All our old
> > fabric & sewing stores
> > are gone -- replaced by tattoo parlors and so forth.
> > But lower Broadway,
> > probably nearly at Chambers Street, still has
> > several good & complete
> > fabric and "finding" stores, probably servicing
> > some garment area sweat
> > shops, so maybe around for a while, we hope.
> >
> > cheers,
> >
> > Judy
>
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> http://mailplus.yahoo.com
>
This archive was generated by hypermail 2.1.5 : 02/21/03-10:44:17 AM Z CST