Problem & Solution

Q

Metallocene linear low density polyethylene blown film uneven thickness（Variant: Color/Material Change Scenario）

A

Film thickness unevenness is caused by die gap, temperature or cooling unevenness, and needs to be solved from mold precision and process stability.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

Q

Metallocene linear low density polyethylene blown film wrinkles（Variant: Seasonal Change Scenario）

A

Wrinkles are caused by uneven thickness or unbalanced hauling, and need to be solved from thickness control, hauling and collapsing frame adjustment.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film wrinklesuneven thicknesshaul-off rollscollapsing framecooling line

Q

Metallocene linear low density polyethylene blown film wrinkles（Variant: Startup Commissioning Scenario）

A

Wrinkles are caused by uneven thickness or unbalanced hauling, and need to be solved from thickness control, hauling and collapsing frame adjustment.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film wrinklesuneven thicknesshaul-off rollscollapsing framecooling line

Q

Metallocene linear low density polyethylene film blocking/poor opening（Variant: Mass Production Scenario）

A

Film blocking is caused by surface tension and temperature, and needs to be solved by adding anti-blocking agents and controlling winding conditions.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film blockinganti-blocking agentwinding temperaturewinding tensionslip agent

Q

Metallocene linear low density polyethylene blown film wrinkles（Variant: Strengthened Measures）

A

Wrinkles are caused by uneven thickness or unbalanced hauling, and need to be solved from thickness control, hauling and collapsing frame adjustment.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film wrinklesuneven thicknesshaul-off rollscollapsing framecooling line

Q

Metallocene linear low density polyethylene blown film uneven thickness（Variant: Seasonal Change Scenario）

A

Film thickness unevenness is caused by die gap, temperature or cooling unevenness, and needs to be solved from mold precision and process stability.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

Q

Metallocene linear low density polyethylene blown film uneven thickness（Variant: Startup Commissioning Scenario）

A

Film thickness unevenness is caused by die gap, temperature or cooling unevenness, and needs to be solved from mold precision and process stability.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

Q

Metallocene linear low density polyethylene film blocking/poor opening（Variant: Color/Material Change Scenario）

A

Film blocking is caused by surface tension and temperature, and needs to be solved by adding anti-blocking agents and controlling winding conditions.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film blockinganti-blocking agentwinding temperaturewinding tensionslip agent

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene process transition problems when switching production between different processing methods（Variant: Mass Production Scenario）

A

Production-switch transition requires advance planning and adequate preparation; the key is to clarify the differentiated material requirements of different processing methods.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post production switchprocessing methodprocess parametersmaterial gradetrial production verification

Q

Metallocene linear low density polyethylene blown film uneven thickness（Variant: Strengthened Measures）

A

Film thickness unevenness is caused by die gap, temperature or cooling unevenness, and needs to be solved from mold precision and process stability.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

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