Avery Dennison announced preliminary, unaudited results for its first quarter ended March 30, 2019. Net sales declined 2.0% to $1.74 billion, with an organic sales change (non-GAAP) of 2.4%.   “Our Q1 performance was solid, given a challenging start to the year, with adjusted earnings in line with our expectations,” said Mitch Butier, president and CEO.   “In the Label and Graphic Materials segment, organic growth slowed, while profitability was solid. We expect organic growth and operating marg...