Badische Corporation

Dow Badische Company

William Postman

James B Louch

Gerry A Hagen

Edward N Donnelly

Thomas R McGregor

Willis E Cole

Thomas A Ward

Hermann Buchert

Wilhelm A Haberkorn

An improvement is provided in an integrated process for the production of textured multifilament yarn from a fiber-forming, thermoplastic, linear, high-molecular-weight polymer of caprolactam by the combination in immediate succession of the procedural steps of melt spinning, drawing, texturing, and packaging. The present improvement combines the following procedural steps with those of melt spinning, drawing, texturing, and packaging:

Integrated process for the production of textured polycaprolactam

A liquid receptacle in the form of a chamber has a slit in one section thereof, the elongated sides of the slit being parallel straight lines. The chamber communicates through another section thereof with means for the supply thereto of a liquid treating composition at a controlled rate. Guide means configures a traveling multi-filament textile yarn in a close-packed monofilamentary layer and directs the so-configured traveling textile yarn under a desired tension and at a right angle over the slit and in contact with the chamber at a point downstream of the slit and in proximity thereto. The minimum length of the slit is equal to the total width of the traveling textile yarn when configured in a close-packed monofilamentary layer; and the width of the slit is between about 0.001 and 0.01 inches.

Liquid applicator for textile yarns

Melt spun yarns are treated with a finish which is an aqueous solution or dispersion containing an alkoxylated alcohol or thiol as the sole essential organic component thereof.

Processability of melt spun yarns

Growing community of inventors

Anderson, SC, United States of America

William Postman