BPA-free glass printing inks

Alexander Suckfüll and Pascal Iffland discuss Marabu’s new range of dishwasher-safe printing inks, which have been developed with a pollutant-free binder for consumer safety and peace of mind.

BPA-free glass printing inks

When you put glasses, baby bottles and other containers in the dishwasher, do you worry about the release of harmful substances? BPA (the chemical compound Bisphenol A) is used in the manufacture of polycarbonate plastics, synthetic resins and other synthetic materials. It is known as an endocrine disruptor and interferes with the human hormone system. Although BPA is prohibited in the manufacture of baby bottles in Germany and other EU countries, it is still a constituent of many other household products – a fact that most consumers are not aware of. When a dishwasher runs, BPA residues can accumulate on baby bottles even if they were printed with BPA-free inks. The ultimate goal must be to limit the use of BPA in all areas, not just in selected critical products.

As a leading manufacturer of organic inks for printing on glass, Marabu takes its responsibility to the environment seriously and is working hard on solutions that offer maximum safety for production workers and users. To this end, the company has developed

a new BPA-free ink for decorative screen printing on glass.

Safe, durable decoration

The binding agent in Marabu’s UV-curable Ultra Glass LEDGF inks contains no BPA. Organic UV inks are distinguished by brilliant, long-lasting colours, making them ideal for decorating glassware. Ultra Glass LEDGF inks can withstand at least 350 passes through a household dishwasher. Since most glasses show corrosion after 100 washings, the ink is more durable than the printed surface itself. Post-curing at higher temperatures additionally improves the ink characteristics and is recommended.

Hybrid versatility

A hybrid ink line, the LEDGF range is formulated for LED curing, but can also be overprinted with a protective layer of highly transparent varnish and cured under UV light. In this way, the application saves energy at each LED ink station and is also as safe and reliable as a UV system. It is a cost-efficient solution because most modern printing machines are equipped for LED curing followed by UV curing.

UV-LED inks can also be cured conventionally, using UV light alone. This means glass manufacturers can use their existing machines and don’t have to invest in expensive new equipment.

Ultra Glass LEDGF is available with print-ready viscosity and in Marabu’s Ultracolor range.

About the Author: 

Alexander Suckfüll is Technical Project Manager – Packaging Screen and Pad Printing Inks and Pascal Iffland is Sales Director – Key Account Packaging Screen and Pad Printing Inks at Marabu

Further Information: 

Marabu GmbH & Co. KG, Tamm, Germany
tel: +49 7141 691420 / +49 7141 691340
email: suc@marabu.com / if@marabu.com
web: www.printing-inks.com