EN

Products and Applications

Packaging, Publication
& Digital Inks

High-Performance Carbon Blacks for Inks, Digital Imaging & Printed Electronics

Modern printing demands optical density, jetness, dispersion stability, conductivity, rheology control, and precision compatibility with multiple resin systems.

ISTAR’s portfolio is engineered using advanced furnace black and gas-black technologies, tailored across particle size, structure, and surface chemistry to deliver the highest performance in:

Packaging Inks

Publication Inks

Digital Inkjet Ink

Toners

Conductive & Electronic Inks

The Science Behind ISTAR’S Speciality Carbon Blacks

Primary Particle Size 

Small particles
(<15 - 25 nm)

Higher viscosity, stronger film, deep masstone

Used for luxury packaging, UV-curable inks, inkjet

Medium particles
(25 - 40 nm)

Balanced jetness + viscosity control

Ideal for flexo/gravure

Large particles
(>40 nm)

Lowest viscosity, easiest dispersion

Perfect for publication inks, high-speed gravure

Small particles (<15 - 25 nm)

Higher viscosity, stronger film, deep masstone

Used for luxury packaging, UV-curable inks, inkjet

Medium particles (25 - 40 nm)

Balanced jetness + viscosity control

Ideal for flexo/gravure

Large particles (>40 nm)

Lowest viscosity, easiest dispersion

Perfect for publication inks, high-speed gravure

Structure

Higher viscosity
Stronger film
Deep masstone
Used in offset inks, high OD toners
Low Viscosity
High Gloss
Fast Dispersion
Ideal for flexo, gravure, inkjet

Surface Chemistry

Manufacturing Method

Gas Blacks

Ultra-small particles, blue undertone, high jetness

Preferred for premium packaging inks & high-end inkjet

Furnace Blacks

Broad tunability in structure + surface area

Workhorse pigments for flexo, gravure, publication inks & toners

Manufacturing Method

Gas Blacks

Ultra-small particles, blue undertone, high jetness

Preferred for premium packaging inks & high-end inkjet

Furnace Blacks

Broad tunability in structure + surface area

Workhorse pigments for flexo, gravure, publication inks & toners

Istar Product
Families

EMPIREX®
Low-viscosity, high-dispersibility furnace blacks for flexo, gravure, inkjet, and surface- oxidized types for UV technologies.
NOBLEX®
Balanced structure + medium surface area blacks optimized for offset, heatset, coldset, publication gravure.
ONYX GEMS®
Gas-black inspired series for ultra-high jetness, narrow PSD, and inkjet / UV-curable systems.
PLASTEXA®
Multi-application series for systems requiring fast dispersion and broad resin compatibility.
VULCROX®
Conductive series for RFID inks, flexible electronics, membranes, sensors, PCB printing.

Where These
Products Are Used

Packaging & Publication Inks

Flexographic Inks

Gravure

Offset

Digital Printing

Inkjet

Toner

Conductive Inks

RFID Inks

Printed Electronics

Membrane Switch Inks

Touch Screen Inks

Flexible PCB Inks

EN