Circular Economy: Changing to Mineral Oil Free Inks

2023-10-20. This Franco-German report on the reduction of mineral oils of web offset inks in the circular economy is jointly published by WAN-IFRA and CITEO (France) with the participation of AGRAPA and UBA (Germany).

by Dean Roper dean.roper@wan-ifra.org | October 20, 2023

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The sustainability of ink on paper is of concern to the printing industry to ensure that it presents no environmental or circular economy risks. It is for this reason that WAN-IFRA and CITEO have co-published this Special Report on Mineral Oil Free (MOF) inks that answers these concerns for a sustainable circular economy.

This is not a new subject – WAN-IFRA published two Special Reports in 1991 and 1995* largely driven from America. In the late 1980s US news publishers started looking for MO substitutes for news inks; at the same time the American Soybean Association were looking for new markets. This coincided with soy-based news inks becoming the answer to two national issues: the serious health concerns over Mineral Oil Hydrocarbons (MOH), and the 1990 Clean Air Act to reduce volatile organic compounds (VOCs). By 1995, over 90% of US news inks had converted to soya in spite of much higher prices. The drivers in Europe were weaker at the time — news inks were not subject to compulsory identification as dangerous substances; and the US Method 24 to measure VOCs was not used in Europe. This reduced the justification for their higher price. Vegetable oil based Coldset inks were available in Europe from the mid 1990s, but their commercialisation was discontinued around 2010. The environmental and technical parameters have now changed. This comprehensive new report provides a fuller understanding of the economic, environmental and technical issues and their implications.

CITEO, the French mission-driven not-for-profit Extended Producer Responsibility (EPR) organisation dedicated to the recycling of paper and packaging, initiated this report following results of its evaluation projects. CITEO recognises that this is an international issue and consequently invited AGRAPA and UBA to participate in this Special Report: a subject where they began working in 2010.

Their combined evaluation projects were made independently and in parallel. The trials in Germany used two machines to test multiple inks, while those in France used multiple printers to evaluate comparisons of Mineral Oil (MO) and MOF inks sourced from their traditional suppliers. The result is a rich and broad overview. MOF printing inks have been developed over several years and are now fundamentally suitable for use in practice. This report also includes French trials of Waterless and Heatset low MOH (Mineral Oil Hydrocarbons) web offset inks that comply with current restrictions but will not conform with the 2025 French regulations.

Germany and France represent about 35% of coldset newsprint consumption in Western Europe (EMGE 2022) and, consequently, they have a major influence in the sector. They have each taken different routes to implement MOF inks. France have taken a regulatory route (EC rules permit national laws for health and environmental issues), while in Germany, AGRAPA has initiated a voluntary agreement to progressively switch to MOF newspaper inks by 2028. The quality and value of this report is the result of the proactive international cross-industry co-operation between the printers and their ink suppliers and the organisations concerned.

This Special Report is, therefore, timely for the European printing industry. It provides them with a clear overview, technical evaluations, and implications to change to MOF inks.