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An electromagnetic induction system for hot embossing

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The traditional systems for heating embossing rolls using piping with hot oil or pressurized water, or with heating elements, use up large amounts of energy, have high heat dissipation, and are underperforming.

«The heating systems used so far in production, » comments Andrea Gambini, Global Research & Development Director of Körber Business Area Tissue www.koerber-tissue.com, «are now too underperforming: heating the embossing roll by means of a hot liquid flowing inside it requires a high use of energy, as does trying to heat it with heating system with resistors. Oil systems require dedicated facilities to heat and recirculate large masses of oil, greatly impacting the environment and creating unsustainable conditions. In addition, these factors contribute to lower overall equipment efficiency (OEE)».

«The tissue market is constantly evolving, » says Gambini, «and with this evolution comes the need to offer more effective, efficient, sustainable and user-friendly solutions. Safety, simplicity, flexibility, and efficiency: these are the cornerstones on which the Warm-up Contactless Double system is likewise based.

Our patented Warm-up Contactless system heats the embossing rolls from the outside without any physical contact with the rolls themselves and reduces heating times by 1/3, resulting in energy savings of more than 60%. This system can be used with any existing engraved rolls and is designed not to interfere with the operator’s work». These features combine to show how state-of-the-art is the Warm-up Contactless system and demonstrate how Körber Business Area Tissue cares about sustainability.

«Building on our experience in the tissue industry, with the desire to innovate by offering our customers more innovative technological solutions, our R&D center has further advanced Warm-up Contactless by expanding our product portfolio with the double embossing system, which retains all the advantages of the solution already on the market, and allows it to be used in the production of kitchen towels as well, » concludes Gambini.