The estimated $600 million to $700 million Latin American market for printing ink is expected to expand by a healthy 3 percent this year as the industry struggles to upgrade and standardize technology, industry executives say. “The challenge is not growing the business; it’s keeping it profitable,” said Ursula Stevens, a corporate vice president for Sun Chemical Latin America, in Fort Lee, NJ. “For ink makers, acquisitions have been the name of the game. But there is too much consolidation goi...