Re: Gum Tri-Color Yellow

So how is one to know which is the proper color to refer to when purchasing or discussing pigments?

Thanks,

Don Bryant

-----Original Message-----
From: Katharine Thayer <kthayer@pacifier.com>
Sent: Jun 3, 2004 6:18 AM
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Gum Tri-Color Yellow

Katharine Thayer wrote:
>
> Tom Ferguson wrote:
> >
> >
> > First question: Yellow layer. The "Process" looking yellow paints are
> > giving me a normal DR and clear well. What they don't do is show the
> > individual steps well, I get more of a gradient than steps. I settled
> > on Rowney's "Permanent Yellow #664" (Quinophthalone Yellow PY138).

Excuse me, all, while I get on my soapbox for just a minute and point
out that this is an excellent example to demonstrate why pigment names
and numbers are a better identifier than paint names, even paint names
attached to a particular manufacturer. A year or two ago someone was
also talking about Rowney Permanent Yellow, but at that time Rowney's
Permanent Yellow (It even had the same number, #664) was made of PY1, an
entirely different pigment.
Katharine
Received on Thu Jun 3 12:19:18 2004