Context and motivation

The tissue paper is a light crêpe paper for household and sanitary use. Made from raw virgin or recycled paper pulp, the tissue is produced through a paper machine and wrapped in large reels. These reels are then turned into finished products (toilet paper, kitchen rolls, napkins and other paper for domestic use). This process is carried out within the so-called converting lines, complex manufacturing processes whose efficiency is one of the key factors that sets the competitiveness of paper industry companies.

The thorough analysis of the configuration and operation of the converting lines currently in commerce allows the identification of critical elements in terms of efficiency, and in particular:

 

  • weighty machinery, built with heavy materials, requiring large electric powers for their functioning;
  • very long downtime in the event of failures or malfunctions on the line, due to the complexity of the repair operations, that often require the direct intervention of manufacturer’s qualified technicians;
  • the emission of ignitable fine dust in the line operating area, produced during the paper processing, which constitute health and safety risks for operators.

For each of these aspects, an action plan was identified, aimed at solving the critical issues and improving the overall efficiency of the tissue converting process, and thereby, eventually, at increasing the competitiveness of the Tuscan papermaking industry.