Pigment Blue Dyes

About Pigment Blue Dyes

Pigment Blue 15 (PB15) 

Printing inks Pigment Blue 15 (PB15) is the most widely used blue pigment in modern industry. It belongs to the phthalocyanine family and is chemically known as copper phthalocyanine.

Basic Information

Chemical name: Copper phthalocyanine Blue

Chemical formula: C32H16CuN8

Color Index: Pigment Blue 15

Key Properties

Very high tinting strength (strong color even in small amounts)

Excellent lightfastness (resists fading in sunlight)

Outstanding chemical resistance

Good heat stability

High transparency (ideal for inks & glazing)

Main Variants (Important)

Grade                     Shade Type                              Notes

PB15:1         Reddish blue (CI No.74160:1)        Warm tone, alpha form

PB15:3         Greenish blue(CI No.74160:3)        Most common, highly stable

PB15:4         Greenish (CI No.74160:4)              Improved stability

PB15:6         Slight reddish (CI No.74160:6)       Transparent applications

PB15:3 :- Dominates global usage due to its durability and brightness.