Core for winding elastomeric yarns
AssigneeSonoco Development, Inc.
InventorIsmael Antonio Hernandez
Life of this patent
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Abstract
A paperboard core is described above that is designed to receive a yarn wound thereon, such as an elastomeric yarn that relies on friction for proper winding of the yarn onto the core. In particular, the core includes a clay-coated paper outer ply which is capable of providing direct frictional engagement of the core with the yarn, such that the yarn is windable on the core via direct contact between the clay-coated outer ply and the yarn. In this way, there is no need to use a film on the outer surface of the core in order to obtain the desired frictional properties that will result in proper winding of the yarn onto the core.
Claims20
A paperboard core configured to receive a yarn wound thereon, wherein the core comprises a clay-coated paper outer ply, wherein the outer ply is configured to provide direct frictional engagement of the core with the yarn, such that the yarn is windable on the core via direct contact between the clay-coated outer ply and the yarn.
A paperboard core configured to receive a yarn wound thereon, wherein the core comprises:
- at least one inner ply;
- and
- an outer ply disposed adjacent to the at least one inner ply, wherein the outer ply comprises clay-coated paper,
- wherein the outer ply is configured to provide direct frictional engagement of the core with the yarn, such that the yarn is windable on the core.
A method of making a paperboard core configured to receive a yarn wound thereon, the method comprising disposing an outer ply adjacent to at least one inner ply, wherein the outer ply comprises clay-coated paper, wherein the outer ply is configured to provide direct frictional engagement of the core with the yarn, such that the yarn is windable on the core via direct contact between the clay-coated outer ply and the yarn.
Dependencies are inferred from the claim text.