Allied Corporation

Alliedsignal Inc.

Allied Chemical Corporation

Weldon H Peterson

Kenneth G Morrison

Beryl A Boggs

Clarence Albert Forman

Lawrence Edward Cary

Robert David Carr

Everett Gray Montgomery

John B Boyle

Wayne Henry Murray

This invention relates to a trilobal filament having at least one axially extending void, preferably one axially extending void in each lobe, wherein each lobe has a composite curve profile having a first arm angle .alpha. and a second arm angle .beta., the cross-section has a modification ratio of 2.4 to 5.0, and the total cross-sectional area is 5 to 15 percent void. In a further aspect, this invention is a spinnerette for producing a filament comprising at least one bore group, wherein the bore group has three legs divergent from each other by 130.degree. to 150.degree. and each leg includes two substantially parallel capillary sections and one nipple capillary section which extends to the outermost point of each leg.

Hollow-trilobal cross-section filaments

This invention is a trilobal, synthetic fiber, intended for use in carpets, having an axially extending hole in each lobe, the total cross-sectional area of the fiber being about 5 to 12 percent void, said fiber cross-section having a modification ratio of between about 2 to 3, and an arm angle of about 15.degree. to 45.degree., so that a fiber having improved bulk, soil hiding and resiliency is apparent in a carpet having face fiber of said fiber.

Hollow trilobal cross-section filament

Spinnerette for producing hollow trilobal cross-section filament

The transfer tail apparatus of this invention comprises a tail forming string-up aid, a tail cutter, and tail storage mechanism. The method is to form the tail as the yarn is traveling from a supply source around a spool of the spring-loaded string-up aid to an aspirator which has an internal tail cutter. After the winder has started, and the rotating bobbin flange, which has a pin attached underneath and near the outer edge, reaches the desired speed, the spring-loaded string-up aid is manually released. The string-up aid springs upward to bring the yarn being aspirated to a position where the rotating bobbin pin engages the yarn. At this point, the yarn in the aspirator is reversed in direction and tension is applied to the yarn across the internal cutter which cuts the yarn. The string-up aid and tail cutter are located so that when the yarn has been cut and the direction is reversed, the yarn is directed into a tail storage slot underneath the bobbin flange. When the bobbin is removed, the slot no longer exists and the tail may be easily used. This apparatus and method allow formation of the tail of the inside end of the yarn which is preserved undamaged and extends from the inside of the full package to allow a junction between the tail and the head of another package to be processed.

Transfer tail apparatus and method for vertical spindle winder

Growing community of inventors

Colonial Heights, VA, United States of America

Weldon H Peterson