C.I.PB15: 3 4458 SuperFast Blue 4458

Pigment Blue 15:3
P.B.15:3, the belta-modification of Copper Phthalocyanine Blue, affords a clean shade of turquoise. Pigments of this type are used primarily in graphical printing as well as in finishes and paints, plastics and rubber, textile printing, and other areas, such as office articles.
The commercial importance of P.B.15:3 is reflected in the wide variety of available grades which cover a range of coloristic and application properties. Differences among application media are particularly noticeable in aspects such as dispersibility,tinctorial strength, shade, and transparency.
The printing inks industry uses P.B.15:3 especially as a blue component on different color scales for three and four color printing. The pigment corresponds to the CIE 12-66 standard shade of cyan on the European Color Scale for offset and letterpress prints.
P.B.15:3, the stable crystal modification of Copper Phthalocyanine Blue, demonstrates excellent heat stability. Most commercial types are therefore entirelysuitable candidates for the pigmentation of plastics. 􀀂-Copper Phthalocyanine Blue, however, like the 􀀄-modification, often presents dispersion problems, especially in polyolefins. As a result of these difficulties, P.B.15:3 is usually employedin the form of pigment preparations which contain predispersed pigment.