Wrinkles in Blown Film: Causes, Diagnosis and Practical Fixes
Wrinkles in Blown-Film Extrusion -Causes and Practical Fixes
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15 min
Know How category 1 of 3
Extrusion Technology Articles
Practical articles about laboratory extrusion, blown film processing, machine functions, film defects and troubleshooting.
Laboratory extrusionBlown filmTroubleshootingDie headsR&D
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13 min
Beginner’s Guide to Blown Film Extrusion
Learn how blown film extrusion turns polymer pellets into film, from screw and barrel to die head, bubble cooling, haul-off, winding and operator checks.
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45 min
Troubleshooting Blown Film Extrusion: 50 Common Issues
Practical blown film extrusion troubleshooting guide with 50 most common defects, causes, first checks and solutions, including recycled and bio-based materials.
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7 min
How a Blown Film Extrusion Line Works: Materials, Formulations and Testing Strategy
Guide to materials used in blown film extrusion, including PE, PP, barrier polymers, recycled materials, bio-based polymers, additives, multilayer structures and laboratory testing strategy.
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7 min
How a Blown Film Extrusion Line Works: Haul Off, Thickness Control and Winding
Practical technical guide to blown film: thickness control, collapsing frame, haul-off, nip rolls, corona treatment, slitting and winding for stable film quality.
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8 min
How a Blown Film Extrusion Line Works: Bubble Formation, Cooling and Stability
Technical guide to blown film bubble formation, die heads, air rings, frost line control, cooling, IBC and bubble stability for film extrusion and laboratory testing.
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9 min
How a Blown Film Extrusion Line Works: From Polymer Pellets to Melt
Learn how the first section of a blown film extrusion line works, from material loading and dosing to melting, filtration and die head melt feeding.
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18 min
Lab Extruders for Blown Film – Key Advantages
Learn how laboratory blown film extruders improve material testing, recycled material evaluation, operator training and process development with less production waste.
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