Re: Kodalith fine line developer formula (sort of)

From: Nick Zentena ^lt;>
Date: 11/23/04-09:53:22 AM Z
Message-id: <>

On November 23, 2004 10:25 am, Breukel, C. (HKG) wrote:
> Nick,
> The formaldehyde plays a crucial role: it binds the sodium sulfite. If the
> sulphite is free, it will prevent the lith effect (See Tim Rudmens book for
> a detailed description). It seems that the for,maldehyde can be replaced by
> aceton, but I never tried that.

        Okay. So the developers that leave out both are no worse then those that
contain them. The formaldehyde binds the sulfite. The sulfite doesn't provide
anything to the Lith effect. OTOH the Lith formulas that contain just the
sulfite should be avoided.

        For just lith printing is there a need for anything other then hydroquinone
and sodium hydroxide?

Received on Tue Nov 23 09:50:39 2004

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