Our Products
- Inflation Tubular Film Making Machines (3)
- Extrusion Dies (3)
- Co-extrusion Machines (2)
- Plastic Extruders (2)
Contact Information
No. 79, Heping East Road, Yong Kang District, Tainan City, 71042 sales@hung-thai.com.tw
Tel: 886-6-2537062
Fax: 886-6-2535432
7 layer barrier film die head
Model: 7 layer
Category: Plastic and Rubber Industry / Machinery for Processing Plastics / Plastic Extruders
Characteristics
3-Layer Structures: The Foundation of Blown Film
The three-layer structure is the baseline for blown film. Outer layers ensure high gloss and printability, while the middle layer allows for recycled materials or CaCO₃ to balance cost and stability. Ideal for general packaging, Horng Tair provides tailored, high-output solutions that ensure even entry-level dies achieve maximum productivity.
5-Layer Structures: A Milestone in Die Design
The transition to five-layer structures is a milestone in die engineering. By incorporating barrier and tie layers, films achieve an optimal balance of strength, clarity, and protection. Horng Tair’s 5-layer dies feature high-output designs and POD (Polyolefin Dedicated) technology. This enables flexible layer ratios and broader material compatibility—significantly cutting costs without sacrificing capacity—showcasing our expertise in precision die design.
7-Layer Structures: Advanced Barrier Performance
Seven-layer structures enhance performance by embedding EVOH or PA barrier layers at the core, shielded by outer layers for maximum efficiency. Beyond traditional symmetry, Horng Tair offers asymmetrical designs with off-center barrier placement or composite layers. These configurations optimize heat-sealing and anti-curling properties, meeting the rigorous demands of food and medical-grade applications.
In structures with nine or more layers, the barrier material is no longer concentrated into a single thick layer, but is distributed into multiple extremely thin sublayers, each only 2–3 μm thick. This reduces the overall consumption of EVOH/PA while significantly enhancing the barrier effect through interlayer synergy.
Multi-layer structures do more than just enhance barrier properties; they also improve film flexibility and formability, preventing cracking during vacuum packaging or thermoforming. Symmetrical designs ensure visual and structural stability, while asymmetrical layouts allow for off-center barrier placement. This reduces material costs while enhancing heat-sealing and anti-curling performance.
Multilayer films are most commonly used in functional film applications: food vacuum packaging, cold-chain preservation, medical and pharmaceutical packaging, electronic or industrial protection. These sectors require the long-term protection and controlled release functionalities that only multilayer structures can deliver.
The essence of multilayer films is the optimization of materials engineering: each layer works at the most appropriate location and thickness, reducing waste of expensive raw materials while maximizing barrier properties, strength, heat sealing, and appearance.
Horng Tair's core value lies in high-barrier die design: enabling superior performance with less material. We help customers optimize costs and eliminate the time-intensive burdens of downstream processing, ensuring a seamless entry into high-end markets.
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