Senior Editor Anne Marie Mohan and Chief Editor Matt Reynolds preview the flexible packaging innovations heading to PACK EXPO International. Reynolds breaks down how mono-material films have narrowed the sealing window until the temperature that seals sits close to the temperature that destroys, which machinery answers are emerging from new jaw motions to ultrasonic sealing, why film suppliers now lead with heat resistance instead of burying it in the spec sheet, and how barrier paper finally started running at full line speed.
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