Problem & Solution

Practical answers to common plastic material challenges

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LLDPE extrusion material changeover gel

Material changeovers with large viscosity differences require thorough purging.

Extrusion & Post LLDPE; material changeover; gel; machine cleaning; SOP

LLDPE film width instability

Width = bubble stability.

Extrusion & Post LLDPE; film; width; layflat width; bubble

LLDPE extrusion sheet rough surface

Roughness = shear exceeding limit.

Extrusion & Post LLDPE; extrusion; sheet; orange peel; PPA

LLDPE film winding wrinkles

For winding problems, first fix the film itself.

Extrusion & Post LLDPE; film; winding; wrinkles; tension

LLDPE film lamination problem

Lamination = surface state + adhesive matching.

Extrusion & Post LLDPE; film; lamination; peel strength; slip agent

LLDPE extrusion melt temperature drift

Melt temperature drift = shear heat + control detuning.

Extrusion & Post LLDPE; extrusion; melt temperature; shear heat; PID

LLDPE blown film bubble breakage

Bubble breakage = weak points + low strength.

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

LLDPE film die lines

Die lines = die lip condition.

Extrusion & Post LLDPE; film; die lines; die lip; PPA

LLDPE Stretch Film Insufficient Self-Adhesion

Stretch film tack = grade + tackifying system.

Extrusion & Post LLDPE;stretch film;self-adhesion;PIB;tackifier

LLDPE Film Opening Blocking

Blocking = additives + tension + temperature.

Extrusion & Post LLDPE;film;blocking;antiblock agent;tension

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