Spinnerets & needles

Islands-in-the-sea spinneret

The islands-in-the-sea spinneret forms composite fibers from three or more materials. Multiple channels bring polymers with different properties into one fiber structure. When N components are spun together, selectively removing one or more components after spinning can increase porosity and specific surface area.

It can produce composite fibers with a cable-like cross-section.

Islands-in-the-sea spinneret

Related systems

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