Problem & Solution

Practical answers to common plastic material challenges

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Q

LDPE Die Temperature

A

Cast film uniformity relies on die temperature zone management; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Incorporate this case into the defect archive as a troubleshooting reference for similar future problems.

Extrusion & Post LDPEdie temperaturecastinguniformity

Q

LDPE Blown Film Temperature

A

Stable blown film temperature is the prerequisite for bubble quality; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Incorporate this case into the defect archive as a troubleshooting reference for similar future problems.

Extrusion & Post LDPEblown film temperaturebubbletransparency

Q

LDPE Air Ring Single and Dual Lips

A

Air ring selection upgrades with the material; single lip is enough for LDPE, LLDPE must have dual lips plus internal cooling; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; air ring; single lip; dual lip; bubble stability

Q

LDPE Blown Film Frost Line Management

A

The frost line is the steering wheel of the blown film process; the balance between bubble stability and film transparency is all adjusted by it; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; blown film; frost line; air ring; IBC

Q

LDPE Film Roll End Face Taper

A

Tapered rolls are the cumulative manifestation of thickness deviation; the fundamental cure is improving transverse uniformity.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; film; winding; taper; correction; thickness

Q

LDPE Film Static Electricity Dust Attraction

A

Static management relies on both equipment and material means; antistatic masterbatch suits long-term storage scenarios.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; film; static electricity; dust attraction; antistatic; ionized air

Q

LDPE Film Printing Ink Adhesion

A

Printing quality starts with surface energy management; dyne value testing is the basis for release.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Incorporate this case into the defect archive as a troubleshooting reference...

Extrusion & Post LDPE; film; printing; adhesion; surface energy; corona

Q

LDPE Film Shrinkage Rate Fluctuation

A

The core indicator of shrink film is guaranteed by process stability; batch management is the key to fluctuation control.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; film; heat shrink; shrinkage rate; orientation; batch

Q

LDPE Cast Film Uneven Thickness

A

Cast film thickness relies on die lip precision and attachment uniformity; closed-loop thickness measurement is standard for high-precision production.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; cast film; thickness; die lip; chill roll; thickness measurement

Q

LDPE Cast Film Die Lip Build-up

A

The cast film build-up problem can be effectively relieved with PPA; regular cleaning remains the basic guarantee.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; cast film; die lip build-up; PPA; scratch

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