Problem & Solution

Practical answers to common plastic material challenges

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Q

PBAT film bubble swaying

A

Air ring uniformity is the foundation of PBAT film bubble stability; ambient airflow is often overlooked; the stabilization cage is a low-cost and effective device.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PBAT; film bubble; swaying; air ring; internal cooling; stabilization cage

Q

PBAT wrinkles and slackness

A

Cooling and tension are the main causes of PBAT wrinkles; soft materials require higher mechanical precision; taper tension is the standard winding technology.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PBAT; wrinkle; slackness; winding; tension; A-frame

Q

PBAT uneven thickness

A

Die and air ring are the equipment-related main causes of PBAT uneven thickness; low melt strength makes the process window narrower; automatic thickness measurement feedback is a modern means.; after confirming effectiveness, solidify the parameters and practices into the work instruction to pre...

Extrusion & Post PBAT; thickness; uneven; die; air ring; haul-off

Q

PBAT broken holes and pinholes

A

Screen and plasticization are the main causes of PBAT pinhole defects; online detection is an interception means; raw material cleanliness management cannot be ignored.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PBAT; pinhole; broken hole; screen; plasticization; detection

Q

PBAT blocking and poor opening property

A

Poor opening property of PBAT is a common problem of biodegradable films; anti-blocking agent and tension control work together; zinc stearate has both slip and anti-blocking functions.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent rec...

Extrusion & Post PBAT; blocking; opening property; anti-blocking agent; tension; winding

Q

PBAT Low Melt Strength, Unstable Blown Film

A

PBAT's low melt strength is the core bottleneck of the film blowing process; chain extender modification is the standard countermeasure; melt index 15g/10min is the flowability upper limit for the blowing process.

Extrusion & Post PBAT; melt strength; film blowing; hole breaking; chain extender; bubble

Q

PARA Metallization

A

Surface engineering of PARA metallization is key; roughening and activation are standard procedures; testing ensures quality.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PARA; metallization; coating; roughening; activation; bond strength

Q

PARA Painting and Coating

A

PARA painting pretreatment determines adhesion; high-fiber surfaces need special processes; testing verifies quality.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PARA; painting; adhesion; pretreatment; primer; testing

Q

PARA Gating System and Floating Fiber

A

The short-flow fast-filling principle of the PARA gating system prevents floating fiber; the flowability difference of the two components is the design starting point; uniform dispersion depends on flow management.; after confirming effectiveness, solidify the parameters and practices into the wo...

Extrusion & Post PARA; gating system; floating fiber; flow path; filling; dispersion

Q

PA6 Printing Ink Loss

A

PA6 printing requires special ink plus surface treatment to ensure adhesion; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the fu...

Extrusion & Post PA6 silk screen printing ink surface treatment

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