Re: Gum Tri-Color Yellow

Many (not all) paints will have the pigment number on the tube. In this
case it was the "PY138" I listed after the paint name.

On Thursday, June 3, 2004, at 10:58 AM, Silver Plated wrote:

> 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
>
>
--------------
Tom Ferguson
http://www.ferguson-photo-design.com
Received on Thu Jun 3 12:58:11 2004