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Phthalo Red

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Robert
Posted on Sunday, February 26, 2006 - 7:11 pm:   Print Post
No such thing, chemically. Pthalocyanine pigments run the gamut from green to reddish blue, but not red. Grumbacher Academy has a trademark on the word "Thalo" and makets their quinacridone violet pigments PV19) as Thalo red and Thalo Crimson. These are good lightfasr replacements for Aliz. Crimson and are red pigments on the violet biased side (cool) of the red. I have seen the term pthalo red in a couple of old books. The author didn't know what he was taling about in that respect, but that's not unusual re. pigments. Artists, even pros, seem as swayed by trade names in lieu of pigment knowledge as much as everyone else. The easiest thing to do is to get the pigment number (PV 19) and look it up on handprint.com.
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Howard
Posted on Sunday, February 26, 2006 - 4:46 pm:   Print Post
A watercolor book I was looking at today referred to phthalo red. Anyone ever use the color? Anyone know what pigments are in it?

Howard

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