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Printpack Shows Application of Photochromic Ink to Flexible Packaging

Photochromic ink hides within standard graphics and remains invisible until exposed to sunlight.

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By: DAVID SAVASTANO

Contributing Editor, Coatings World and Ink World

 Printpack will debut a new way for brands to interact and engage with consumers at this year’s PACK EXPO Las Vegas. The technology – utilizing a proprietary process invented by Printpack – allows for photochromic ink to be hidden within standard graphics and remain invisible until exposed to sunlight.
 
The process represents the first time photochromic ink has been applied to a flexible film, giving brand owners in any market capable of utilizing flexible packaging new options for interacting with their customer base.
 
Applying photochromic ink has been a challenge for the flexible packaging industry for years, particularly in high speed production environments, in turn limiting options for brand owners looking to differentiate their product. Printpack’s R&D team designed the innovative process to apply the ink while still upholding the integrity of the packaging design and graphics to the highest standards.

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