US Patent 11174595 Tissue paper converting line and method

A converting line for processing tissue paper includes an unwinder for unwinding reels of tissue paper; a rewinding machine for forming rolls of tissue paper; a feeding path between the unwinder and the rewinding machine, for at least one ply of tissue paper; along the feeding path, a first detection unit to detect the thickness of the tissue paper fed along the feeding path in a feeding direction; a control system, interfacing with the detection unit, and configured to act on at least one production parameter of the converting line based on the detected tissue paper thickness.