Naphtha Shortages Having a Growing Impact in Japan Economy LifestyleA Clear Impact The Iran war is leading to increased shortages of naphtha, a petroleum-derived raw material used in a wide range of products. On May 12, major snack maker Calbee, known for its potato chips, announced that it would use black-and-white packaging for 14 of its most popular products. The naphtha shortage has affected the supply of ink and solvents needed for printing on packaging. The firm stated, “Calbee will...