Laser threat to conventional label printers

The technology is a sort of direct to object technique, however this is not a new application of inkjet printing. Laser marking fans are calling it “natural branding” and it works by using a laser to mark foods. Although it has mainly been used for fruits with a robust skin, such as melons, laser marking can work even on soft fruits, like tomatoes. It’s a nonimpact technique that doesn’t affect the food or how long it lasts.

Laser marking was developed by Laser Foods in Spain as part of the European Union’s (EU) Eco-Innovation programme. Laser Foods and its technology partners have come up with a coating that is applied to the image area. This coating changes colour when activated by a laser, so it does not penetrate the food.

The process has various environmental benefits including doing away with the ink, plastic, glue and paper associated with conventional produce labelling. Laser marking also means no waste when conventional labels reach the end of their short lives.

The GHG emissions associated with printing and transporting the stickers to their point of use also disappear, as do emissions related to getting raw materials to the printers in the first place.

There are other benefits to laser marking. It is claimed to be some ten per cent faster than sticking printed labels on to fruits, which could extend product shelf life. Laser marking also ensures traceability and prevents goods from being missold, since there is no label to get lost or switched.

Labels can also be changed more readily and providers have more flexibility in the information they provide to consumers via the fruits and vegetables printed with laser marking.

The technology has been trialed by a Dutch supplier of fruit and veg and ICA one of Sweden’s leading supermarket chains. Marks & Spencer are using it in the UK, as are chains in Poland; companies in the US are also keen.

Laser marking gives producers and brand owners many more creative options for adding extra information to products, such as suggestions for other foods that work well with the product, say chilies in addition to avocados or parma ham with melons.

Millions of sticky labels are used around the world on food produce, so laser marking has a massive market opportunity to both cut carbon footprints and save costs. It is also attractive because it creates a new platform for advertising, be that upselling or simple brand promotion.

The creative possibilities are endless so this technology will make a big difference for packaging design and cross channel promotions. We expect to see plenty of new applications coming out on the back of it.