Cork Tech Talk Blog

With the global customer base for retailed food increasing, food packaging must more and more conform to international food quality, and safety standards. This also can mean longer shelf life is a necessity.

Increased global consumer awareness, income, combined with busier lifestyles, is creating a growing demand for convenience foods. Consumers typically want the food they buy to be safe to eat, stay fresh longer, and meet their taste, and appearance preferences. Essential to this end is food packaging that can extend shelf life, and maintain food freshness.

Barrier CoatingsSimply stated, consumers want protective economic food packaging that offers easy open, and see through features, combined with barrier protection from degrading oxygen, water vapor, and aromas.

Read more: Barrier Coatings for Food Packaging

Work & TurnWork & Turn is a term used to describe the sheetfed litho practice of printing on both sides of a substrate. Typically, the first printing pass prints one side of the substrate. A second printing press pass follows as the job is turned and fed through the press again. The second pass can commence after the first pass inks are set and/or dry enough avoiding offsetting.

UV or hybrid(UV) inks are immediately cured (dry) enough to turned and second pass printed without drying time delays. Conventional sheetfed offset (litho) inks and overprint varnishes are based on resin systems and oils that set and dry by time dependent absorption and oxidation. Spray powders are used to dust these conventional litho inks and varnishes to prevent offsetting to the adjacent sheet back, when sheets are stacked in a pile at the end of a press.

Read more: Work & Turn Aqueous Coatings
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