E.i. Dupont De Nemours and Company

James F Kirkbride

Adrian C Snyder

Ilan Marcus

William J Jones, Jr

Walter B Halm

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

Fiberfilling material is converted into fiberballs by an air-assisted rolling process in a turbulent air mill. Such a continuous process shows significant advantages over prior suggestions, with regard to productivity and flexibility.

Making fiberballs

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

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.

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Wilmington, DE, United States of America

James F Kirkbride