Lodi Vecchio, Italy – Trelleborg’s rollers and belts operation has introduced two upgrades to its range of polyurethane coverings for its tissue converting rollers.
Trelleborg upgrades PU tissue converting roller covers
One of the products, Rollin Press Plast 4, contains a new polyurethane covering that was specifically designed for marrying rolls in the process of tissue converting. It has extended mechanical stress and abrasion resistance, and longer lifetime. The hardness is 90–98 Shore A.
‘[It] incorporates several features that enable higher levels of productivity,’ said sales and business development manager Guillaume Bordais. ‘For example, antistatic properties prevent the deposit of residues on the roller and allow for an easier cleaning operation.’
The second improved product, PressPlast 4D, combines both Shore D and Shore A hardness. ‘The 90 Shore A inner layer allows the rubber covering to be flexible and is able to adapt to the different settings of a lamination unit, which may change according to the final product configuration,’ Bordais said.
‘The outside 65 Shore D layer enables perfect bonding of plies, whatever their number. Re-embossing of the bottom ply is prevented by the high pressure applied in the narrow nip footprint,’ he added.