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US 5,000,807 AGranted
Apparatus and method for commingling continuous multifilament yarns
AssigneeConcordia Mfg. Co., Inc.
InventorLambert M. Stuart
Life of this patent
Estimating the term…
Abstract
Improving commingling two or more continuous multiple filament yarns into a single yarn by rubbing one yarn against a static charge-inducing body that is supported in an electrically isolated manner to apply static charge to the yarn to tend to cause separation of its individual multiple filaments.
Claims29
A method of commingling two or more different continuous multiple filament yarns into a single yarn comprising
- continuously supplying separate first and second different continuous multiple filament yarns,
- rubbing said first yarn against a static charge-inducing body that is supported in an electrically isolated manner to apply static charge to said first yarn to tend to cause separation of individual multiple filaments of said first yarn,
- said body being a variable-speed rotatably-driven roll having a tangential speed that is in the same direction as and is faster than that of said filaments of said first yarn,
- all multiple filament strands of said first yarn proceeding in the same direction with respect to the direction of rotation of said roll,
- causing said first yarn to form a first opened ribbon,
- separately opening up said second multiple filament yarn to form a second opened ribbon, and
- combining said first and second ribbons so as to cause mixing of different individual filaments,
- said first yarn not being driven by any drive means after said rubbing against said static charge inducing body and prior to said combining said first and second yarns.
5 more elements
Apparatus for commingling two or more different continuous multiple filament yarns into a single yarn comprising
- supply means for continuously supplying separate first and second different continuous multiple filament yarns,
- a static charge-inducing body that is supported in an electrically isolated manner to apply static charge to said first yarn supplied from said supply means as said yarn travels past and rubs against said body to tend to cause separation of individual multiple filaments of said first yarn,
- said body being a variable-speed rotatably-driven roll capable of having a tangential speed that is in the same direction as and is faster than that of said filaments of said first yarn,
- all multiple filament strands of said first yarn proceeding in the same direction with respect to the direction of rotation of said roll,
- means for causing said first yarn to form a first opened ribbon,
- means for separately opening said second multiple filament yarn to provide a second opened ribbon, and
- means for combining said first and second ribbons so as to cause mixing of different individual filaments,
- said apparatus not having any drive means present along the path of said first yarn from said static charge inducing body to said means for combining.
5 more elements
Dependencies are inferred from the claim text.