Patent ID: 8689849
Filing Date: 2014-04-08
Classification: B65H

Abstract:
1. A rewinder machine for manufacturing coreless rolls of web material, comprising a source of web material, a winding unit wherein the web material is wound up around a free end thereof to form a roll with a central nucleus of the web material forming a first portion and an outer portion around the central nucleus forming a second portion, and a source of separator material; wherein said rewinder machine further includes devices which during winding of each roll create an interface between said first portion and said second portion, wherein said devices comprise an applicator of the separator material on the web material being wound, said applicator being operated to apply said separator material on the web material being wound after said central nucleus has been formed, wherein said separator material provides a discontinity between said first portion and said second portion of web material that facilitates mutual sliding between said first portion and said second portion, and wherein said first portion and said second portion of web material are separable at said interface to provide two independently usable products in a form of rolls of web material.