Allied Corporation

Allied Chemical Corporation

Frank L Peckinpaugh

Raymond J Biron

Michael K Westmoreland

Duane R Prior

Samuel L Yates

Kenneth Roberts Benton

Kenneth R Benton, Sr

Thomas A Flower

An improved high speed process for texturing continuous filament yarn is provided wherein the improvement comprises cooling the yarn, subsequent to texturing and prior to applying tension, by contact for at least 4 milliseconds with a curved surface at a temperature of -29.degree. to 2.degree. C. and an RMS of up to 10, frictional forces creating a yarn tension of 0.036 to 0.45 gram per denier per end at the surface. Apparatus is also provided for cooling the continuous filament yarn subsequent to texturing and prior to applying tension. The apparatus comprises a curved surface having a minimum length for yarn contact of 7.6 cm, an RMS of up to 10 and a temperature of -29.degree. to 2.degree. C. Textured yarn brought into contact with the surface for at least 4 milliseconds at a yarn tension of 0.036 to 0.045 gram per denier per end is cooled to increase yarn stability and prevent pullout of yarn texture.

Chilled yarn guide

This invention is a continuous process for spinning and drawing polycarbonamide filaments as a continuous running length comprising spinning the filaments Y from the molten polymer through a spinnerette 3 into a quench stack 4 and immediately quenching the freshly spun filaments in a quench stack with a flowing quench medium and immediately applying a yarn finish so that after quenching and applying finish, the surface temperature of the filaments is below the second order transition temperature for the filaments at the ambient conditions, and immediately applying steam in a chamber 15 around the continuous running length of filaments at a temperature at from about 60.degree. C. to 95.degree. C. for periods from about 0.03 to 3 seconds and immediately drawing the filaments; and the apparatus to accomplish that process.

Nylon spin-draw process with steam conditioning

A controlled, two-position lash point is used to maintain tension during tail formation while winding yarn. During winder string-up the lash point is in the lower 'reachable' position. As the yarn is caught up on the winder to form a tail, the lash point is controlled to quickly move up to the upper winding position, thereby taking up slack during tail formation and maintaining tension to prevent breaking yarn.

Yarn winding method and apparatus to maintain tension during tail

A quench system for spinning multifilament synthetic fiber using a fog in the quench stack is disclosed. The system and method comprise

Quench process for synthetic fibers using fog and flowing air

Quench system for synthetic fibers using fog and flowing air

A printing device to identify wound yarn packages being automatically doffed from a winder. The device has a stamp with a marking end to be inked by an ink pad and is spring-loaded to strike and retract from a package for marking. A triangular shaped cam slot is used for cocking and releasing the stamp responsive to pressure contact of the device with a yarn package.

Growing community of inventors

Colonial Heights, VA, United States of America

Frank L Peckinpaugh