Plate Mounting Parameter Matching Between Adhesive Tape Thickness and Printing Pressure
This technical article reveals coupling relationship between mounting tape thickness,plate hardness and printing pressure,analyzes tape aging deformation rules,and provides matched tape selection standards for different flexo plate types.
Most operators ignore mounting tape parameter matching during plate mounting,and only focus on plate position accuracy.The double-sided adhesive tape between plate cylinder and flexo plate is a buffer pressure transfer medium,and its thickness,hardness and aging degree directly change actual printing pressure acting on relief plates,affecting dot gain and pattern edge definition greatly.
Three common mounting tape thickness specifications include 0.38mm,0.50mm and 0.65mm.Different thickness tapes bring different pressure buffer effects.Thicker tape provides stronger pressure buffering and reduces direct compression deformation of flexo plates,while thinner tape improves pressure transfer sensitivity for fine dot printing.
High Speed Flexo Printing Machine - Stack Flexo Flexo Printing Machine
Matching rule between tape thickness and flexo plate hardness.Soft shore A 35 flexo plates match thin 0.38mm mounting tape to avoid excessive buffer leading to insufficient pressure transfer.Medium shore A 42 plates match standard 0.50mm tape for balanced pressure buffering and transfer.Hard shore A 50 plates match thick 0.65mm tape to relieve rigid plate pressure impact and reduce dot gain.
Mounting tape aging deformation failure after long-term operation.After 72 hours of continuous press operation,mounting tape produces permanent compression creep deformation.The buffer performance decreases gradually,causing actual printing pressure to rise silently without parameter change.Operators need to recalibrate printing pressure within 24 hours after new plate mounting to compensate tape creep deformation.
Temperature influence on mounting tape buffer performance.Workshop temperature change alters tape elasticity:low temperature makes tape harder and reduces buffer effect;high temperature softens tape and increases pressure buffer volume.Temperature compensation of printing pressure is required following ambient workshop temperature fluctuation.
Integrated plate mounting system optimization:unify plate hardness,tape thickness and initial printing pressure as one matched parameter group instead of separate adjustment.Reasonable matching eliminates invisible pressure deviation caused by tape buffer difference,and improves long-term printing pressure stability after plate mounting.
