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US 8,585,846 B2Granted
Method and device for closing the tail end of a log of web material and log 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.
Claims26
A method to close a tail end of a log of web material comprising steps of:
- unwinding a length of web material from the log;
- at a distance approximately equal to or greater than a circumference of the log from a tail end of said length of web material unwound from the log, forming a fold in a portion of said length of web material,
- rewinding said length of web material, extending between said fold and said tail end, 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 mechanical ply-bonding said tail end and said fold together in absence of an adhesive.
1 more element
A method to close a tail end of a log of web material comprising steps of:
- unwinding a length of web material from a log;
- loosening a last turn of web material wound on said log to form in said last turn a fold projecting from the log at a distance approximately equal to or greater than a circumference of the log from a tail end of said last turn of web material of said log;
- positioning said fold projecting from the log adjacent to said tail end;
- joining the tail end to said fold by mechanical ply-bonding said tail end and said fold together in absence of an adhesive.
1 more element
A method to close a tail end of a log of web material comprising steps of:
- unwinding a length of web material from the log;
- at a distance approximately equal to or greater than a circumference of the log from a tail end of said length of web material unwound from the log, forming a fold in a portion of said length of web material,
- rewinding said length of web material, extending between said fold and said tail end, 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 mechanical ply-bonding said tail end and said fold together in absence of an adhesive to provide a tail edge projecting from the log wherein the tail edge is composed of three layers of adjoined web material.
1 more element
Dependencies are inferred from the claim text.