Home    Resource Store    Past Issues    Buyers' Guide    Career Center    Subscriptions    Advertising    E-Newsletter    Contact

More Quality Fabric Of The Month

Cool To The Core
November 24, 2015

Future Denim
September 22, 2015

Roofing Performance Gets A Lift
July 21, 2015

Warmth & Loft Without Feathers
May 19, 2015

IR Performance In A Softer Hand
March 16, 2015

Textile World Photo Galleries
November/December 2015 November/December 2015

View Issue  |

Subscribe Now  |


From Farm To Fabric: The Many Faces Of Cotton - The 74th Plenary Meeting of the International Cotton Advisory Committee (ICAC)
12/06/2015 - 12/11/2015

Capstone Course On Nonwoven Product Development
12/07/2015 - 12/11/2015

2nd Morocco International Home Textiles & Homewares Fair
03/16/2016 - 03/19/2016

- more events -

- submit your event -

Printer Friendly
Full Site
Quality Fabric Of The Month

Greener & Smarter

Eastar Bio is a fully biodegradable, high-performance specialty polymer suitable for a range of technical textile applications.

Janet Bealer Rodie, Assistant Editor

E astar Bio copolyester was introduced in late 1997 by Eastman Chemical Co., Kingsport, Tenn. Its unique chemistry makes it fully biodegradable in accordance with ASTM and German Institute for Standardization (DIN) standards. Under normal composting conditions, it breaks down into carbon dioxide, water and biomass after six months.

Economically competitive with other specialty polymers, it also is durable, strong, liquid-impermeable and easily processed using conventional polyethylene extrusion machinery.

Promising applications include waste bags, disposable cups and plates, agricultural film, packaging, and a host of textile applications — agricultural products, medical textiles, diapers, feminine hygiene products, disposable washcloths and more. Textile products and concepts are currently in the development stages, with an emphasis on spunbond and composite nonwoven products. Eastman also plans to develop meltblown products.


Spunbond applications for Eastar Bio include disposable washcloths, hygiene products and medical textiles.

Interesting Possibilities

"We have produced some very interesting spunbonds using some of the latest technology,” said Bill Haile, development associate, polyester polymers for fibers. “Eastar Bio makes a soft, quiet fabric that has some elastic properties. ” Medical fabrics can be sterilized by gamma radiation and other means, he added.

Agricultural and horticultural spunbonds include seed beds, erosion- and weed-control covers, and nutrient-delivery systems. Using these products, Haile said, “farmers can set their fields three weeks earlier.

After harvesting, these materials can be plowed under and provide additional soil nutrients. In some cases, this practice may permit a second growing season.” These possibilities have generated particular interest in Europe, he added.

Eastar Bio also is of interest as a binder with natural, cellulosic and polylactide (PLA) fibers for disposable products.

“Until now, there has been no good biodegradable binder for natural fibers,” Haile said. “The resin has a melting point of 108°C (for fibers, it is 5°C to 10°C higher), so it sticks well to other substances and produces strong bonds with cotton, rayon, flax, kenaf, bagasse and fluff pulp without yellowing the fibers.”

As for PLA, he said, “there’s not much that bonds well to PLA, but this does.” In addition, because it breaks down only in a composting environment, it can be bonded with polyester, glass and other man-made fibers for durable applications.

Haile said the resin’s elasticity “is a key benefit for binder fibers, especially where high recovery of the nonwoven or batting is desired.”

Besides spunbond and binder applications, Haile noted a heavier-weight, card-bonded flax blend to form molded sheets for construction and automotive uses.

For more information about Eastar Bio, contact Robin McMurray (800) EASTMAN.

May 2002