7-Eleven Japan debuts new black-and-white rice ball packaging…but is it because of a naphtha shortage? (opens in new tab)

Convenience store range strips everything back to basics, including the rice balls. Just last month, Calbee, Japan’s leading snack manufacturer, announced it would be switching to black-and-white printing on its potato chip packages due to a shortage of naphtha, an oil-derived component used in the production of solvents and resins to make printing inks. Ever […]