Multi-Layer Co-Extrusion Blown Film Line | XIAOPAI

Blowing film machine

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Multi-Layer Co-Extrusion Blown Film Line | XIAOPAI

A multi-layer co-extrusion blown film line extrudes two or more resins simultaneously through a single die, producing a film with distinct layers in one pass. Each layer does a different job: one provides strength, one provides barrier, one provides sealability. The result is a thinner, stronger film at lower resin cost than a mono-layer equivalent.

KEY SPECIFICATIONS

Layer count: ABA, ABC and higher configurations depending on structure
Resin combinations: PE, PP, PA, EVOH, tie resins and barrier polymers
Extruders: One extruder per layer group, sized individually
Die head: Multi-layer spiral mandrel co-extrusion die
Cooling: IBC internal bubble cooling with external air ring
Gauge control: Automatic gauge control with rotating or oscillating die options
Winding: Configured to your roll build and downstream process
Compliance: CE marking, ISO 9001 manufacturing

WHY THIS MATTERS

Co-extrusion is how converters cut resin cost without losing performance. Putting an expensive barrier resin only in the layer that needs it, rather than through the whole film, is the single biggest material saving available in flexible packaging.

TYPICAL APPLICATIONS

• High-barrier food packaging

• Retort and hot-fill packaging structures

• Vacuum and modified atmosphere packaging

• Heavy duty sacks and industrial packaging

• Shrink film with differential seal layers

• Agricultural and silage film

BUYING THROUGH XIAOPAI

XIAOPAI (Wenzhou Xiaopai Power Technology) runs two equipment modules, flexible packaging equipment and power transmission equipment, and works as a foreign-trade service provider and authorized distributor, not a factory. We source packaging equipment against your structure and output target, then carry the export process, installation supervision, operator training and after-sales. For solventless laminating machines we work as the authorized global distributor of SINSTAR (Chongqing).

FAQ

Q1: How many layers do I actually need?

A1: Start from the properties you need, not from the maximum available. Many applications are served by three layers. Adding layers raises cost and complexity, so we recommend the minimum structure that meets your barrier and strength targets.

Q2: Do I need EVOH or PA for barrier?

A2: Only if your product needs oxygen or moisture barrier. EVOH gives excellent oxygen barrier but is moisture sensitive and usually needs to be buried between polyolefin layers. PA adds puncture resistance as well as some barrier.

Q3: What is the payback on a co-extrusion line?

A3: It depends on your resin spread. If you are currently running a mono-layer film with an expensive resin throughout, moving to a three-layer structure with barrier only where needed usually pays back on material savings alone.

RELATED GUIDES

Before you request a quotation, these related articles and standards may be useful:

 [ One-Stop Flexible Packaging Production Line: Buyer’s Guide (2026) ]

 [ One-Stop Flexible Packaging Solution ]

 [ What Is a Solventless Laminating Machine? 2026 Buyer’s Guide ]