The film obtained from multiple suppliers is 70-ga polypropylene extrusion-laminated to 70-ga metallized polypropylene. Flexo-printing/converting procedures are performed by Genpak (www.genpak.com). The bag rollstock then is formed filled and lap-sealed on multiple f/f/s systems at three Humpty Dumpty production locations.
The snack processor had used PMS line work printing for these 50-g to 300-g bags. But this printing process had limitations. As Lynda Murray vp of marketing for Humpty Dumpty says “I’m a big believer in the Opaltone® process. It gives us bolder brighter graphic design capabilities and an endless range of color combination possibilities that make our packaging a more powerful marketing tool. Package appearance has been improved and the printing is of consistent high quality. Consumers have responded positively to the new bags.”
Opaltone digital color technology also is advantageous for the printer/converter. It allows the printing of multiple graphic packaging designs side by side for improved production cost efficiencies and reduced ink and solvent waste. Steve Ahier Canadian sales manager for Genpak says “With the Opaltone process we don’t have to change inks in the press when we change over from one print job to another. So it eliminates costly production downtime. We also avert ink waste. And we don’t use as much solvent so we reduce emissions. Opaltone is a very cost-effective system and we are eager to bring more print customers on board with this process.”