Winding Core for Fabrics
AssigneeSonoco Development, Inc.
InventorTony F. Rummage
Life of this patent
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Abstract
A winding core for nonwoven fabrics and the like comprises a wound paperboard tube comprising a plurality of paperboard layers wound one upon another about an axis of the tube and adhered together, and regions of grit bound in an adhesive binder, the regions being affixed to the outer surface of the tube and being sized and arranged such that the regions collectively occupy a minority of the total surface area of the outer surface, the regions further being arranged such that there are at least two of the regions axially spaced apart along a length of the tube in positions to simultaneously encounter and snag an end of a fabric web to be wound about the core. In one embodiment, a narrow sandpaper strip is helically wound about and affixed to the tube to form the regions of grit.
Claims14
A winding core for fabrics facilitating the gripping and start-up of winding of a fabric web about the core, comprising:
- a wound paperboard tube comprising a plurality of paperboard layers wound one upon another about an axis of the tube and adhered together, the tube having a generally cylindrical outer surface having a total surface area;
- and
- regions of grit bound in an adhesive binder, said regions being affixed to the outer surface of the tube and being sized and arranged such that said regions collectively occupy a minority of the total surface area of the outer surface, said regions further being arranged such that there are at least two of said regions axially spaced apart along a length of the tube in positions to simultaneously encounter and snag an end of a fabric web to be wound about the core.
Dependencies are inferred from the claim text.