E.i. Dupont De Nemours and Company

Adrian C Snyder

James F Kirkbride

Ilan Marcus

William J Jones, Jr

Walter B Halm

Arun Pal Aneja

Frederick K Mallon

Michael S Frankosky

Harvey G Anderson

George L Vaughn

Robert Lee Edmundson

New copolyester composition that provides excellent filament spinning and mill/yarn processing of staple fiber into fabrics having combination of excellent pilling performance as well as aesthetics and tactility ('hand'). Preferred fibers have non-round cross-sections, especially multi-grooved and scalloped-oval cross-sections that provide fabrics having outstanding comfort qualities of moisture-management, dryness and comfort, as well as minimal pilling.

Low pill copolyester

New polyester composition for new polyester staple fiber that provides fabrics having a combination of excellent pilling performance, aesthetics and tactility ('hand'). Preferred fibers have non-round cross-sections that are retained, especially such non-round cross-sections having multi-grooved scalloped-oval cross-sections that provide fabrics having outstanding comfort qualities of moisture-management, dryness and comfort, along with minimal pilling.

Low pill polyester

Synthetic polyester fiber pillows have improved ticking fabrics of continuous filament polyester yarns, particularly of microdenier, and that may be sanded.

Synthetic polyester fiber pillows with improved ticking

Fiberballs have been prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers, and used for making molded structures.

Fillings and other aspects of fibers

Fiberballs based on poly(1,4-cyclohexanedimethylene terephthalate) fiber have given improved products.

Fiberballs

Fiberballs for filling uses in pillows, cushions and for like support purposes, from blends of slickened fiberfill of regular denier, to provide support and resilience, mixed with minor amounts of lower denier slickened fibers to provide optimum aesthetics.

Fiberballs are prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers.

Process for preparing fiberballs

Ball-shaped and other rounded fiber clusters that have a density that may be controlled, as desired, with good uniformity of size and density, may be obtained from staple fiber that has been crimped mechanically, as well as from spirally crimped polyester staple fiber, by an new process and apparatus at a high throughput. The process including feeding a uniform layer of staple fiber onto a peripheral surface of a rotating main cylinder covered with card clothing and rolling the fiber into rounded clusters.

Making rounded clusters of fibers

Fiberballs for filling uses have been prepared from mechanically-crimped fibers having both a primary crimp and a secondary crimp with specific configurations, especially amplitudes and frequencies. The fiberballs may contain a proportion of other fibers, particularly binder fibers.

Growing community of inventors

Greenville, NC, United States of America

Adrian C Snyder