Printech Archive
Copper in Green and Blue Dyes


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From: Wayne Pferdehirt (pferdehi@epd.engr.wisc.edu)
Date: Mon Feb 28 2000 - 17:09:12 CST


I thought this message might be of interest to some Printech
subscribers. Forwarded from P2tech listserv. I will forward any
replies.
-Wayne

To: "Becky Lockart" <EPA8611@epa.state.il.us>, <p2tech@great-lakes.net>,
<KMMILLS@smtpgate.dphe.state.co.us> Subject: Re: Copper in Blue and
Green Dyes
Yes, there are blue and green dyes that do not contain copper.
The problem is that in some cases that do not meet the fastness
requirements of the customer. Copper dyes will meet the requirement.
Turquoise is especially hard to get without copper. If you need more
info,
e-mail me at hboyter@cstone.net. I've been working on this problem for
over ten years.

Dr. Henry Boyter, Jr. Ph.D. Chemist
The opinions of Dr. Boyter are provided for informational
purposes only and should not be used as advice. No
warranty or expression of professionalism is implied.
***************

----- Original Message -----
From: Becky Lockart <EPA8611@epa.state.il.us>
To: <p2tech@great-lakes.net>; <KMMILLS@smtpgate.dphe.state.co.us>
Sent: Thursday, February 24, 2000 1:33 PM
Subject: Re: Copper in Blue and Green Dyes

P2 Tech -
Does anyone know if there are any blue and green dyes that do not
contain
copper? Or contain a reduced amount of copper?
Thank you, Becky

Becky Lockart
Office of Pollution Prevention
Illinois Environmental Protection
1021 North Grand Avenue East
P.O. Box 19276
Springfield, IL 62794-9276
217/524-9642 (voice)
217/557-2125 (fax)
epa8611@epa.state.il.us

Wayne P. Pferdehirt
Director, MEPP, http://epdweb.engr.wisc.edu/mepp/
Co-Director, PNEAC http://www.pneac.org
Specialist, SHWEC, http://www.uwex.edu/shwec/
tel 608.265.2361
fax 608.262.6250


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