This is relatively newly developed group of high performance organic pigments. They offer a range of medium orange to bluish-red hues. These pigments gained importance in high grade industrial coatings, especially automotive finishes, because of their bright shade, good opacity, excellent heat stability and resistance to solvents along with excellent light and weather fastness properties. Important examples include Pigment Red 254 (Figure 3.21), 255 and 264 and Pigment Orange 73 and 81.
Diketopyrrolopyrrole pigments
2 декабря, 2015 Pokraskin