Yarn core including slip resistant transfer coating
AssigneeAlton Box Board Company
InventorRobert M. Wilkinson
Life of this patent
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Abstract
A yarn core, either formed to a cylindrical shape, or in a cone configuration, includes a shallow cavity approximate one end, and within the cavity, around the circumference of the core, there is included a coating of a slip resistance material, preferably formed as a colloidal silica, to enhance the coefficient of friction at this location so as to temporarily adhere the yarn thereto either while it is being wound onto the core, or during unwinding as, for example, weaving proceeds from one depleted yarn core to a new core of yarn.
Claims3
A yarn core having a transfer coating comprising, a length of cylinder like member, said member having a smooth outer covering to assist in yarn winding and transfer, a frictional transfer ring provided proximate one end of the core and formed of a slip resistant coating material to facilitate the engagement of yarn, said transfer ring including a shallow cavity formed in the cylindrical like member at the vicinity of the said ring, and including the slip resistant coating material applied therein, said slip resistant coating material comprising a composition of a colloidal silica that enhances the coefficient of friction of the transfer ring and effectively temporarily adheres the yarn as it is being wound with respect to the core.
Dependencies are inferred from the claim text.