[alt-photo] Re: Alternative sensitiser

[David Hatton]

Hi Sam,
Kwikprint used a weak solution of dichromate in something called 'soft
gelatin'  I believe,
Davidh



On Fri, Apr 16, 2010 at 1:31 AM, sam wang <samwang864 at gmail.com> wrote:
> Has anyone tried using some sensitisers other than dichromate for gum or
> carbon? Silkscreen emulsions have used diazo since the 70's. Can it be used
> for our purposes? If so, would it be less toxic, and would longevity of the
> emulsion be increased?
>
> A somewhat related question: does anyone know the chemical make-up of
> KwikPrint? It was popular in the 70's to the 80's. First made for proofing
> print jobs and them sold by Light Impressions for alt printing. Best results
> when used on a king of vinyl that comes with it. Are there no old timers on
> the list who can shed light on it? Seems that it was akin to casein and used
> diazo as well.
>
> Sam Wang
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