Ink film cracks or breaks on substrate when flexed.
Causes:
– Excessive heat or UV exposure level in drying/curing system causing a moisture and plasticizer release from the substrate or ink film;
– As for poor adhesion.
Solutions:
– Control web temperature. Reduce heat and/or increase volume of air through drying chamber;
– Reduce UV lamp power.
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Design and manufacture of customised flexographic coding and printing solutions.
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