Re: Gum problem(s)

From: Judy Seigel ^lt;>
Date: 11/27/05-09:50:24 PM Z
Message-id: <>

On Sun, 27 Nov 2005, Judy Seigel wrote:

  My bad forward -- the query was from mark Nelson not Chris...

> On Wed, 23 Nov 2005, MARK NELSON wrote....
>>> If PH does affect Gum, then like Cyanotype and other processes, would gum
>>> not
>>> work well with a highly buffered paper?
> They don't publish a schedule of how "highly" buffered the papers are, and
> though pH may affect gum, we don't know the actual effects, nor if or how it
> might affect the actual print with the other ingredients and process added.
> That said, most "art" papers are buffered -- which is why many of them are
> NOT good for cyano.
> However, if you want to measure the pH of paper (like we need more things to
> measure) Light Impressions sells a pH pen which will give a measure of sorts
> -- probably crude, but still the gist. And has its uses at all sorts of
> moments.
> J.
Received on Sun Nov 27 22:01:56 2005

This archive was generated by hypermail 2.1.8 : 12/01/05-02:04:51 PM Z CST