About Us

Mexar was set up in the United Kingdom in 2008 when the two founders, Dr Andy Hancock and Roger Tirrell, noticed a gap in the industrial inkjet market. Aqueous, functional pigmented inks were not being exploited to their full potential in areas such as textile printing and décor. Mexar was duly founded and the process of developing speciality aqueous inkjet inks was implemented.

Eight years on, Mexar is still run by the original founders, and the core technology area of functional aqueous pigment inks remains the focus of Mexar’s activities within the inkjet industry.

Please contact us for more information.

Meet the Founders

Dr Andy Hancock, Technical Director


Andy has been working on the development of inkjet inks for nearly 20 years. Having completed a BSc from University of Leeds Colour and Polymer Chemistry Department in 1999, Andy spent 18 months working for Akzo Nobel Resins, specialising in UV curable ink and coating technologies.

Andy returned to Leeds in 2001 and completed his PhD “Preparation and Characterisation of Radiation Curable Inkjet Inks” in 2004 under the supervision of Prof Long Lin, industrially sponsored by Xennia Technologies Ltd.

From 2004, Andy was the Technical Manager for Nanojet Ink Ltd., then he co-founded Mexar Ltd. in March 2008. Andy is a regular speaker at conferences such as IMI, FESPA, InPrint, TIARA group and Printwear & Promotion discussing inkjet ink development and formulation.  

Roger Tirrell, Commercial Director


Roger has over 30 years of experience in chemicals, dyes, pigments, dispersions and inks and has been active in many of the industries which utilise these products including food, pharmaceuticals, home care, textiles, plastics, paints, inks, surface coatings and construction.

He has considerable knowledge of working in export markets having spent time in Europe, North America, Southern Africa, South East Asia and China. Roger is a specialist in planning and creating joint ventures and overseas subsidiary companies with commercial, manufacturing, technical and quality functions. In his roles as a senior director at various companies, he has initiated, negotiated and managed global supply agreements and contracts with multinational customers.

Prior to forming Mexar, Roger was a consultant to a Chinese company and oversaw the creation of a production unit for dyes and pigments, with particular emphasis in supplying the Chinese market. The new unit grew to an annual turnover in excess of US $10 million within three years.