FILM EXTRUSION

Blown film extrusion presents a unique set of challenges – from maintaining uniform film thickness and bubble stability to selecting the right materials and minimizing defects. With decades of process know-how, we understand these complexities and offer tailored solutions – a wide range of blown film lines that ensure consistent, high-quality film production.

Material-related challenges

• Smart material selection: Choosing the right plastic material for specific applications is key to efficient extrusion and high product quality, as each polymer behaves differently during processing and affects the final outcome. Our expert consultancy ensures your material choice fits your application – reducing risks and enhancing performance.
• Reliable material flow: Unmelted particles, impurities, or worn extruder screws can disrupt the flow and cause defects. Our specially designed die heads are engineered to prevent such issues, ensuring smooth & consistent processing.

Process & equipment challenges

• Dimensional accuracy: Maintaining uniform film thickness and diameter throughout the roll is a key challenge in blown film extrusion. The technology incorporated into our lines ensures precise control across the entire film bubble.
• Bubble stability: Instability at the frost line – where the molten film solidifies – can disrupt the blown film process. Our technology detects the frost line in real time and adjusts process parameters to maintain bubble stability and ensure consistent film quality.
• Die performance: Incorrect die gap settings or wear & tear can compromise film uniformity. Our consultancy, combined with specially hardened & coated die materials, helps prevent these issues – ensuring long-term reliability.
• Efficient cooling: Uneven cooling leads to inconsistent film properties. Our innovative automated cooling ring technology delivers rapid, uniform cooling for superior film quality with minimized thickness tolerances.
• Surface perfection: Rough or uneven surfaces often arise from material inconsistencies or equipment malfunctions. We address this with precision-treated die surfaces & air-cushion-guided idler rollers for sensitive films.
• Wrinkle-free results: Wrinkles can form during cooling & collapsing, affecting roll quality. Our automated tension control and proven winding technology ensure smooth, wrinkle-free film rolls – even with delicate materials.