Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Volkan Sahin <vsahin@...> wrote:
>
> Bad news neither black alone or cyan alone is etch
> resistant. But color combination I mean if you print
> black color, choose Ultra Premium Photo Paper on
> printer and if you dry (burn) it well then becomes
> etch resistant. I will upload my printer settings as a
> pdf file under files/Epson_inkjet_Volkan folder.
> More tests are required but I have no longer thin PCB
> material in stock. If you plan to order inks please
> order all colors for testing purposes. 
> Volkan
>

I have been watching the posts with interest. The ink from MIS that I 
would choose to try is the Eboni or Photo Blacks 

As their site says:

Note 2: A hybrid Universal Black (MK) is available for those who do 
not want to change from Matte Black to Photo black when changing from 
matte paper to glossy paper. However, the Universal Black does have 
some dye in it and is not as archival as the matte black or photo 
black inks.

That small amount of dye may be an issue, for better or worse. It 
could assist wetting the copper surface to advantage and assist 
coverage between dots but it may make the ink less etch resistant or 
require more treatment to dry the dye before etching.

Volkans statement suggests a portion of dye may be needed to have 
success or perhaps there is a chemical in one of the other colours 
that reacts to toughen the ink laid down.

Perhaps one of you , US based, would care to try the Eboni or Photo 
blacks.