Greetings Jim. I saw you on TV. I mean my laptop. Watched the video of you and
that other guy rolling a DT print. Very nice.

To answer your question, no. I do not think those dyes are available. But I
can't say because I was not interested at the time. The white paper below will
tell you about the dyes, how the VG materials were prepared, who made the dyes,
etc. This document was released to a few people before anyone knew about the
process. So when it paints a rosy future for the process, keep in mind it was
developed, released, commercialized (after a fashion) and buried several years
ago. Prints were bloody costly and there were problems. Some images were poorly
made and there were issues with contrast and alignment.

Here is a link to a really detailed explanation of the process and how it was
commercialized:

http://www.andrewhazelden.com/files/2010/December/outlook_for_StereoJet.pdf

It will answer your questions.

And you are correct, the PVA does the trick. Just a stretch and a dye job and
you have a polarizer.

As for the current state of the art, here is the main web site:
http://stereojetinc.com/

I have always thought there was a market for stereo images from the ink-jet
printer. What is needed is a simple and less costly solution. We know the
process, the film is as cheap as it can get, and dyes are available. We seem to
be 3D oriented, it just takes a little work.

Cheers

--- In history_of_color_photography@yahoogroups.com, James Browning
<james.browning@...> wrote:
>
> Ok, It's coming back to me. The PVA acts in a similar manner as gelatin, it
will accept the aqueous based dyes by IB. Since it is stretched it has a
molecular directionality of the polymers, which the long linear dye molecules
will align with. Since the PVA film is bonded to the substrate, you don't need a
subbing layer, but you do need a bonding agent which doesn't pick up dyes.
Only a few dyes do this well, AFAIK.
>
> Bob - Do you think that there is a supply of these C, M, Y dyes remaining
from the based stereojet company? Only if they have the original powdered dye
that they would be willing to sell, not the fully prepared inkjet inks. I have
plenty of matrix film to do the some tests.
>
> I think there could be some commercial applications for this, movie posters
come to mind. Since people bring their stereo glasses to movie theaters, it
just might be something that people would don their glasses to view a poster -
it has become almost instinctual to do this if you see a blurry double image!
This application hasn't existed until the recent widespread availability of 3D
cinema. The only problem would be having to supply thousands of 3d display
prints on short order. If you used matrices for IB, you would probably want to
build machines which could do the rolling automatically, and run it hot so it
would transfer quickly.
>
> Regards - Jim
>