I really like the direction that Jacquard Products is taking with the new Earth Colors in their line of Jacquard Textile Colors fabric paints. They are putting the Colour Index pigment names and the lightfastness ratings right on the front of the labels! They're starting this with their new colors, which are made with traditional artists' earth pigments, but they will also be including this information on their other colors in the future.
To me, knowing the chemistry of the colors in a product gives me a greater feeling of confidence in my materials. It's better when artists can know what it is that they are using.
It's interesting to think about the historical importance of the pigments they've chosen for the new colors. These are the colors that have been used for centuries, pigments used in the oil paintings of the Renaissance, in Ancient Egypt, even in prehistoric cave paintings from 17,000 years ago, such as raw and burnt umber:
|color ||Colour Index Name||Lightfastness|
|Raw Sienna||Pigment Yellow 43||excellent|
|Brown Ochre||Pigment Yellow 43 (same as Raw Sienna)||excellent|
|Burnt Sienna||Pigment Brown 7||excellent|
|Mars Red||Pigment Red 101||excellent|
|Burnt Umber||Pigment Brown 7 (same as Burnt Sienna)||excellent|
|Raw Umber||Pigment Brown 7 ||excellent|
|Terre Verte||Pigment Yellow 43, Pigment Green 17, and Pigment Black 7||excellent|
|Neutral Gray||Pigment Black 7 and Pigment White 6||excellent|