Instead of double coating, try using two party A solution to one part B solution. I think you will get a greater Dmax. Also check your wash water. It should be neutral or slightly acidic. If it is not, add some acidic acid to it or dilute HCl.
Bob Schramm
Check out my web page at:
http://www.SchrammStudio.com
> Date: Tue, 28 Jul 2009 22:53:46 +0800
> From: jacek@jagnight.com
> Subject: Cyanotype
> To: alt-photo-process-l@usask.ca
>
> Hi Loris,
>
> I've been playing around with some new inks in my printer for the past
> few weeks tweaking them to give me a gradation of ink. I haven't had a
> chance with any cyanotype printing. Though I was wondering if you had
> tried a specific method of double printing to increase the Dmax?
> With the traditional Cyanotype you get an average Dmax of 1.10. What
> if you were to recoat again (once it is completed and dried) with the
> Trad cyanotype and registered another negative. Expose for less time
> to do the shadow areas.
> Therefore get a higher Dmax to the print?
> Will this work?
> I can see it being an expensive exercise, with another negative! :)
> Just my rambling thoughts...
> Cheers
> Jacek
>
|