TECHNOLOGY that will alert the public to the need to replace their face mask has been unveiled by a Scottish smart packaging company. Insignia Technologies, based in Motherwell, have designed a smart label to encourage safer mask practice while bringing peace of mind to the public. The label will change colour to indicate when a disposable face mask has reached the end of its recommended lifespan or when a re-usable mask requires to be changed. Founded in 2012, Insignia Technologies’ smart labels are used across the food and drink sector. It set out on a mission to reduce food waste by developing a label that uses smart pigment technology to change colour over time to show how long a packet of food has been open. When Covid-19 hit, its team redeveloped its label technology so it could be used on face masks.