Uneven Die-to-Part Contact

Part Contamination

Foreign Particles on Part Surface

Insufficient fixture support permits part to flex under pressure

Air entrapment between foil & part

Reposition fixture so decorating surface is parallel to a flat die or conforms to a cont’d die

Discontinue use of flow agents, anti-stat solutions and/or silicone-based mold releases

Clean surface with white cotton cloth or glove

Redesign fixture to provide rigid support under stamping surface and/or ensure that mandrel-type designs do not deflect

Uneven Die-to-Part Contact

Excessive Pressure

 
Lengthy Dwell Time

Sinks in Part

Variations in wall thickness from part-to-part

Reposition fixture so decorating surface is parallel to a flat die or conforms to a contoured die

Decrease stroke length and/or reduce machine output

Reduce dwell time setting

Introduce make-ready beneath part in the areas that are hitting light then reduce force as indicated above

Insufficient Pressure

Part Contamination

Die face temperature not hot enough

Short Dwell Time

Foil Stripping Conditions

Foil coatings are effected by lengthy heat exposure prior to the cycle

Provide adequate stroke length and/or increase machine output

Discontinue use of flow agents and/or silicone-based mold releases

Increase thermostat setting on machine

Increase dwell time setting

Slow head retraction and/or introduce head-up delay

Insufficient Heat at Die Face

Short Dwell Time

Part Contamination

Foreign particles on part surface

Foil-to-Part Incompatibility

Increase thermostat setting on machine and/or move the thermocouple closer to die face

Increase dwell time setting

Discontinue use of flow agents, anti-stat solutions and/or silicone based mold releases

Clean surface with white cotton cloth or glove