Engineered Fibers Technology announces new fiber products

Engineered Fibers Technology has announced that it can now supply PEI fibers, spun from Ultem resin by Kuraray Co. Ltd., in precision short-cut and staple lengths to its U.S. customers.

Engineered Fibers Technology (EFT, Shelton, Conn., USA) has announced that it can now supply PEI fibers, spun from Ultem resin by Kuraray Co. Ltd., in precision short-cut and staple lengths to its U.S. customers. Short-cut fiber lengths of 0.5 to 75 mm can be provided in precision short-cut form, and crimped staple-length fibers from 38 to 106 mm are available. EFT can also supply fine denier circular cross-section fibers that have not previously been available. Deniers from 1.5 to 8 can be provided. Ultem thermoplastic resins have high heat resistance, a continuous operating temperature of 180°C to 200°C, are flame retardant with low smoke density and toxic gas generation, have good chemical resistance and have been used extensively in such applications as aircraft interiors. PEI fibers made using Ultem resin also have extremely low (0.3 percent) moisture absorption and excellent dyeability in a broad range of colors. PEI short-cut and staple-length fibers will permit a range of applications including aircraft and other commercial transportation fabrics and interior panels, electrical insulation papers, wire and cable wrap, liquid and gas filtration, thermal insulation and fire blockers, as well as safety and industrial protective gear, among others. EFT says PEI short-cut fiber in combination with longer glass or carbon fibers, wet-laid papers containing greater than 50 percent reinforcement fiber, can be produced and then laminated/ molded to produce stiff/toughened composite laminates and panels that can be thermoformed to produce 3-D articles. In addition, amorphous PET/ PEI alloy thermal binder fibers, 2 denier, are available with a PEI:PES ratio of 75:25 for short-cut applications in conjunction with PEI fibers.