Eastman Cyphrex microfibers size, shape, material
Eastman cyphrex microfibers

Change size. Change shape. Change material.

Eastman Cyphrex™ microfibers are changing everything.

To satisfy demanding and ever-increasing performance needs, Eastman Cyphrex™ microfibers are designed to target unique functionality by independently or simultaneously fine-tuning:

Micro​fiber size

Eastman Cyphrex™ microfibers offer customers access to highly uniform fibers in previously unavailable lengths, diameters and cross sections.

By delivering microfibers below 0.4 denier in both round and flat cross-sections, Eastman Cyphrex™ microfibers offer access to high-specific-surface-area materials that are both highly uniform and easily dispersed. As a result, a range of desired functional properties can be achieved through blending different Eastman Cyphrex microfibers to achieve precise and repeatable nonwoven properties. For instance, you can pinpoint precise permeability, pore size, and strength.


Microfiber​ shape

Eastman Cyphrex™ microfibers can be made in a variety of shapes, including round, flat, and wedge.

Eastman has conducted extensive research with round and flat microfibers to show how the properties of wetlaid nonwoven media can be fine-tuned to achieve targeted functionality.

Recently, Eastman introduced Cyphrex™ 10101, a flat PET microfiber that is less than 0.4 denier with a unique cross section that enables manufacturers to produce exceptionally uniform synthetic nonwovens that are lightweight and remarkably strong. The unique flat shape also provides excellent dimensional stability without sacrificing uniformity, strength or tear resistance.

Cyphrex flat PET microfibers demonstrate that the microfiber shape can impact the attributes of wetlaid nonwovens in ways that changing microfiber size alone may not allow.


Microfiber material

​Eastman Cyphrex™ microfibers allow expanded options for synthetic microfibers in wetlaid nonwoven media applications.

Technology for Eastman Cyphrex™ microfibers enables access to the widest range of synthetic polymers for microfibers. Eastman has the capability to leverage a broad set of polymers, from the most commonly used PET and PP to materials considered specialties for nonwovens, such as nylon, PLA, copolyesters and others. Eastman uses this capability to target the right functionality for the right application.


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