CINCINNATI, OHIO – October 3, 2022: Kao Collins announced two major developments to SIGMA, the company’s best-selling TIJ ink for HP 45si industrial printing systems. The ink, first released in 2019, captured the marking and coding industry by storm with its industry-leading 12-hour decap time and 24-month shelf life.

Compliant with Swiss Ordinance Annex-10
Chemists at Kao Collins reformulated the revolutionary solvent-based ink to meet Swiss Ordinance compliance and developed color versions of SIGMA to support industry needs.
All new SIGMA inks meet the requirements specified in Annex 10 of the Swiss Ordinance.
Kristin Adams, Kao Collins’ Marketing Manager, said, “Focusing on the future is at the core of our business, which means staying ahead of global regulations. We wanted to give our customers and the industry a competitive advantage without being required to do so.”

The development of the new inks reflects Kao Collins’ ongoing commitment to a safer environment and the company’s My Kirei Lifestyle embodied in three core principles:
● Make every day more beautiful
● Make thoughtful choices for society
● Make the world healthier and cleaner

The new SIGMA inks are formulated and manufactured in accordance with the "EUPIA" Guideline on Printing Inks applied to the non-contact surface of consumer packaging such as pet foods, pharmaceuticals, nutraceuticals, beverages and more.

Beyond Black - SIGMA Colors
Beyond Swiss Ordinance compliance and the 12-hour decap, the new SIGMA inks, packaged in factory-new HP cartridges, are available now in several colors.

Customers, satisfied with the original SIGMA in black, frequently asked for color versions of the high-performance ink. Kao Collins now offers SIGMA in five colors: red, yellow, blue, green, and violet.

Unique Benefits of SIGMA
SIGMA prints on non-porous substrates used for flexible packaging, rigid plastics, and metals, including nylon BOPP, PE, PET and PP, foils, aluminum, laminated papers, and more.

● 24-month shelf life
● Reduced nozzle failure
● Fast, heatless drying
● Superior trajectory, volume, and velocity

As a part of the Kao Corporation, the company embraces the mission of delivering wholehearted satisfaction, enrichment of the lives of people globally, and contributing to the world's sustainability.

“Our formulators took what made SIGMA great and made it even better,” Adams said. “That’s what our customers expect.”

Contact Kristin Adams at for more information about Kao Collins.
Read more about SIGMA at

Kao Collins, based in Cincinnati, Ohio, U.S.A, provides solutions for the inkjet industry worldwide, offering a full line of inks, services, and technical support. The company formulates
and manufactures innovative inkjet inks for the leading thermal, piezo, and continuous printing systems. Since 1990 Kao Collins has helped customers and OEMs reduce costs and increase productivity with high-performance inks.

Kao creates high-value-added products that enrich the lives of consumers around the world. Through its portfolio of over 20 leading brands such as Attack, Bioré, Goldwell, Jergens, John Frieda, Kanebo, Laurier, Merries, and Molton Brown, Kao is part of the everyday lives of people in Asia, Oceania, North America, and Europe. Combined with its chemical division, which contributes to a wide range of industries, Kao generates about 1,500 billion yen in annual sales. Kao employs about 35,000 people worldwide and has more than 120 years of history in innovation. Please visit the Kao Group website for updated information