Eastman's Cyphrex Microfiber - A Fit for Versatile Filtration Applications

摘要

Eastman Cyphrex™ microfibers represent a new, versatile fiber technology for producing fine fibers. These thermoplastic microfibers can be made from a wide range of polymers in various shapes and sizes. This new technology provides very uniform and consistent fiber shapes and sizes that enable the design of wetlaid nonwoven substrates with unique characteristics to meet ever-increasing performance requirements. Current commercial Eastman Cyphrex fibers are cylindrically shaped polyester microfibers that have very narrow diameter and length distributions when compared with similarly sized microglass. This allows for nonwoven substrates to be designed with unique properties such as pore size and pore size distribution. Work on both laboratory and commercial wetlaid equipment has shown that these fibers are easily dispersed and processed, allowing for blending with other fibers including glass, cellulosic and synthetic. These materials are suitable for a wide range of applications - including but not limited to - filtration, battery separators and packaging materials.