Method of controlling flat spots in a zero twist yarn
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsLarry J. Huey, Michael B. Fazio
Life of this patent
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Abstract
A method of collecting strand includes rotating a collet to wind the strand into a package, traversing the strand from end to end of the package so that the strand is wound in a helical pattern on the package, contacting the package with a roller bail at edge portions at each end of the package, pressing the package with the roller bails, thereby causing the strand to flatten as it is wound in the edge portions to create a strand having periodically occurring flat spots, and controlling the flattening of the strand by controlling the pressure of the roller bails on the package. The flattening of the strand can also be controlled by controlling speed of the traverse of the strand.
Claims20
The method of collecting a strand comprising rotating a collet to wind the strand into a package, traversing the strand from end to end of the package so that the strand is wound in a helical pattern on the package, contacting the package with a roller bail at edge portions at each end of the package, pressing the package with the roller bails, thereby causing the strand to flatten as it is wound in the edge portions to create a strand having periodically occurring flat spots, and controlling the flattening of the strand by controlling the pressure of the roller bails on the package.
The method of collecting a strand comprising rotating a collet to wind the strand into a package, traversing the strand from end to end of the package so that the strand is wound in a helical pattern on the package, contacting the package with a roller bail at edge portions at each end of the package, pressing the package with the roller bails, thereby causing the strand to flatten as it is wound in the edge portions to create a strand having periodically occurring flat spots, and controlling the flattening of the strand by controlling the speed of the traverse of the strand.
The method of collecting a strand comprising rotating a collet to wind the strand into a package, traversing the strand from end to end of the package so that the strand is wound in a helical pattern on the package, contacting the package with a roller bail at edge portions at each end of the package, pressing the package with the roller bails, thereby causing the strand to flatten as it is wound in the edge portions to create a strand having periodically occurring flat spots, and controlling the flattening of the strand by controlling the pressure of the roller bails on the package and by controlling the flattening of the strand by controlling the speed of the traverse of the strand.
Dependencies are inferred from the claim text.