Method and device for closing the tail end of a log web material and log of obtained
AssigneeFabio Perini S.p.A.
InventorsMauro Gelli, Romano Maddaleni, Graziano Mazzaccherini
Life of this patent
Estimating the term…
Abstract
To close the tail end (L) of the web material forming the log (R) there is provided mechanical ply-bonding between the tail end and a portion of the last turn of web material, preferably a portion forming a fold (F) projecting from the log.
Claims43
1-50. (canceled)
A method to close a tail end of a log of web material, comprising fastening said tail end by mechanical ply-bonding said tail end to a portion of web material of said log;
- including steps of:
- unwinding a length of web material from the log to provide the tail end;
- at a distance from said tail end, forming a fold in a portion of said length of web material,
- rewinding said length of web material around the log, so that said fold projects from a surface of the log and is carried adjacent to said tail end;
- joining the tail end to said fold projecting from the log by said fastening.
A method to close a tail end of a log of web material, comprising fastening said tail end by mechanical ply-bonding to a portion of web material of said log;
- including steps of:
- unwinding a length of web material from a log to provide the tail end;
- loosening a last turn of web material wound on said log to form in said turn a fold projecting from the log;
- positioning said fold projecting from the log adjacent to said tail end;
- joining the tail end to said fold by said fastening.
A device for closing a tail end of a log of wound web material, comprising a mechanical ply-bonding member, constructed and arranged to mechanically join said tail end to a portion of web material of said log;
- a folding device, to form a transverse fold in a portion of the web material;
- wherein said folding device and said ply-bonding member are arranged to reciprocally join, through mechanical ply-bonding, the tail end and said transverse fold of web material, said fold projecting from a surface of the log.
Dependencies are inferred from the claim text.