Problem & Solution

Practical answers to common plastic material challenges

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LLDPE Film Thickness Deviation (TD)

TD deviation goes back to the die lip and air ring.

Extrusion & Post LLDPE;film;thickness deviation;TD;die lip

LLDPE Film Thickness Deviation (MD)

For MD fluctuation check extrusion stability and filter screens.

Extrusion & Post LLDPE;film;thickness deviation;MD;filter screen

LLDPE Extrusion Motor Load Too High

High load = high viscosity nature; raise temperature, reduce speed, change the screw.

Extrusion & Post LLDPE;extrusion;motor load;torque;screw

LLDPE Blown Film Poor Plasticization (Unmelted Particles)

LLDPE has the highest requirements for screw mixing, and ordinary screws are not enough.

Extrusion & Post LLDPE;blown film;unmelted particles;plasticization;barrier screw

LLDPE Blown Film Bubble Instability

Extrusion & Post LLDPE;blown film;bubble instability;melt strength;blending

LLDPE Blown Film Melt Fracture

For melt fracture, first reduce shear, then raise temperature.

Extrusion & Post LLDPE;blown film;melt fracture;die lip gap;shear

LLDPE Blown Film Sharkskin

LLDPE sharkskin = high viscosity meeting high shear, and PPA is the standard solution.

Extrusion & Post LLDPE;blown film;sharkskin;melt fracture;PPA

LDPE Printing Adhesion

Extrusion & Post LDPEprintingadhesionink

LDPE Corona Decay

Extrusion & Post LDPEcoronadyne valueaging

LDPE Film Wrinkling

Extrusion & Post LDPEwrinklingwindingtension

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