Coreless roll of web material, machine and method for its...

Details Coreless roll of web material, machine and method for its... Coreless roll of web material, machine and method for its...

2011-08-09

2011-08-09

Kim, Sang (Department: 3654)

Winding, tensioning, or guiding

Convolute winding of material

Of discrete sheets or articles

C242S532100, C242S532200, C242S532300

Reexamination Certificate

active

07992818

ABSTRACT:
A method is described for obtaining a coreless roll (R) of web material with a first portion of web material forming an inner nucleus (R1) of said roll and a second portion of web material (R2) wound around the outside of said nucleus. The two portions (R1, R2) can be separated from one another and, for said purpose, an interface or discontinuity is created in at least one turn of the web material forming the roll, between said inner nucleus and said second portion of web material, so as to facilitate the extraction of the inner nucleus from the outer portion of the roll.

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Patent Abstracts of Japan—“Coreless Roll-Like Flexible Synthetic Resin Film”, JP 2004 042920 A published Dec. 2, 2004; Kaji Seisakusho KK.

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