Eastman Chemical Company

Eastman-kodak Company

Jack L Nelson

Bobby Mal Phillips

William Alston Haile

Shriram Bagrodia

Richard D Neal

Lewis C Trent

Harry P Hall

Ronnie J Jones

J Nelson Dalton

Ronald S Scalf

David A Casey

Hugh A Thompson

Synthetic fiber that are capable of spontaneously transporting water on their surface satisfy the equation

Process for spontaneouly transporting a fluid

Process for helically crimping a fiber

Disclosed are fibrous structures comprised of shaped fibers wherein the thickness of the compressed fibrous structure at 1.00 psi is .gtoreq.1.3 times that of a similar compressed structure having the same area density and made from round cross section fibers of the same dpf as the shaped fibers. The invention is useful in articles such as coats, gloves, boats, shoes, etc. made using the structures disclosed herein. The surprising feature of structures according to the present invention is the thickness retention at high pressures. This retained thickness under pressure translates directly into decreased heat transfer or improved insulation.

Insulation material

Spinnerets are used to make synthetic fibers having the unique property of spontaneously transporting water on their surface. The synthetic fibers satisfy the equation

Spinnerets for making fibers capable of spontaneously transporting fluids

This invention relates to spinnerets having orifices of unique cross-sections, the spinnerets being useful for extruding therethrough filaments having 'U' and 'E' shaped cross-sections with stabilizing legs. The use of strategically placed stabilizing legs allow the filaments to maintain the desired shape. The 'U' shaped filament cross-section provides improved drainage over previous filament cross-sections.

Spinneret orifices and filament cross-sections with stabilizing legs

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Johnson City, TN, United States of America

Jack L Nelson