Fibers’ consistent cross section offers processing, functional benefits compared with other microfibers
Kingsport, Tenn., USA — Sept. 4, 2014 — New product possibilities are on the horizon for manufacturers of wetlaid nonwovens and specialty papers with the addition of a flat PET fiber to the Cyphrex™ microfibers portfolio. This fiber, with its novel cross section, enables functional benefits such as uniformity, lightweight strength and improved processability compared with other synthetic microfibers. Flat PET Cyphrex fibers are less than 0.4 denier in size.
“In just over a year since launching, we have begun to build a complementary set of Cyphrex™ microfibers for wetlaid nonwovens manufacturers,” said Fred Dulin, director, microfibers platform, Eastman. “By offering round and flat fibers — in addition to the various sizes of Cyphrex — nonwovens producers can more precisely manufacture media to fit their customers’ needs, giving them an advantage in formulation capability.”
Strength with uniformityWith its distinctive, consistent cross section, the flat PET Eastman Cyphrex™ microfiber greatly improves nonwovens formation and sheet uniformity when compared with other synthetic fibers. These characteristics provide functional benefits in the many applications for which dimensional consistency within and across the nonwoven is critical.
In addition, this flat PET fiber provides greater lightweight strength in nonwoven media. Compared with other synthetic fibers, Eastman Cyphrex™ flat PET fibers enable impressive tensile, tear and burst strength within a very lightweight nonwoven sheet, as well as outstanding green strength. In some applications, these fibers can improve strength-to-weight ratio and dimensional stability.
Ease of processingBecause flat PET Eastman Cyphrex™ microfibers disperse easily in water, they are compatible with standard wetlaid and papermaking processes and equipment. These fibers do not require special shear or agitation. In addition, they allow for easy incorporation with a broader range of fibers than most other synthetic microfibers. And the consistent cross section of the fibers can give wetlaid nonwovens manufacturers confidence in fine-tuning media formulations for desired functionality.
The advantage of Cyphrex™“As with the larger, 4.5-micron fiber added to the Eastman Cyphrex™ microfibers portfolio earlier this year, the flat PET fiber is part of our ongoing effort to create and give our customers innovative microfibers that fit their specific needs,” Dulin said. “This is the latest example of how Cyphrex can keep creating new possibilities for wetlaid nonwovens manufacturers.”
For more information about the flat PET offering from Eastman Cyphrex™ microfibers, visit www.eastmancyphrex.com/shape.
Boiler Plate ContentAbout Eastman Chemical CompanyEastman is a global specialty chemical company that produces a broad range of products found in items people use every day. With a portfolio of specialty businesses, Eastman works with customers to deliver innovative products and solutions while maintaining a commitment to safety and sustainability. Its market-driven approaches take advantage of world-class technology platforms and leading positions in attractive end-markets such as transportation, building and construction and consumables. Eastman focuses on creating consistent, superior value for all stakeholders. As a globally diverse company, Eastman serves customers in approximately 100 countries and had 2013 revenues of approximately $9.4 billion. The company is headquartered in Kingsport, Tenn., USA, and employs approximately 14,000 people around the world. For more information, visit www.eastman.com.