Beverage can manufacturer Rexam has announced the launch of Thermochromic printed ends and Photochromic ink, for aluminium cans.
The new Thermochromic ink is available to brands in 12 different colours and on 200 and 202 ends, and changes colour to indicate when the can is chilled and ready for consumption.
Consumers can see the thermochromic indicator even while the can is stored in the fridge door or placed on the shelf horizontally.
The company's new white transparent Photochromic ink, which reacts and changes colour exposed to natural light, is available on its complete beverage can range.
Rexam innovation and NPD manager Marianne Freund, commenting on the developments, said, "These two new innovations will keep our customers at the forefront of can design, tapping into a trend that focuses on interactivity between the consumer, the drinking occasion and the brand."
Photochromic ink does not react under D65 bulbs or when indoors by windows, and works well when made part of the design of a can.
The inks can be used on pasteurised and non-pasteurised designs up to 82°C, but not on retort designs.
Photochromic ink is an excellent tool for brands that are linked with healthy living, outdoor activities and festivals, among others.
Rexam's Thermochromic ends are printed on the ends of all Rexam cans.
The company has an exclusivity agreement with the supplier until 2015.
Global packaging company Rexam has its main operations in Europe, North America and South America.
Image: Rexam's Thermochromic ink changes colour, indicating the can is chilled and ready for consumption; Photo: Courtesy of Rexam PLC