Don’t be Fooled by Companies Offering You “MEK-Free” Inks.
MEK-Free doesn’t mean Ketone-Free! MEK (Methyl Ethyl Ketone, also known as Butanone) is an industrial solvent used in most inks and additives. It is a colourless, highly flammable ketone with a strong, sharp odour. Most coding inks on the market are advertised as “MEK-free”, implying that they don’t have ketone, but M Pack and Markem-Imaje…