AstenJohnson Nitro cuts fabric break-in time

AstenJohnson Press Fabrics, Clinton, SC, points out that fabrics take time to break in and settle into their running state because the batt structure and base construction both need time to reach optimum density. The low initial density of new fabrics causes the Uhle boxes to remove too much water from the felt loop which in turn affects nip saturation and pressing efficiency.

Press fabric designers have to consider this effect to ensure that most of the useful life of the felt falls within the optimum density range. The company already has several conventional tools to increase initial density and pore size in the form of pre-compaction and finer batt layers but, to truly influence the early density without sacrificing late-life performance, some radical innovation had to be brought to bear.

AstenJohnson’s Nitro™ treatment is designed to increase initial fabric density to reduce the break-in period, and then gradually leave the fabric structure to maintain optimal operating density throughout the rest of the fabric’s useful life. Unlike other technologies, Nitro is an intrinsic part of the fabric structure, not topically applied, which ensures uniform application and does not compromise paper profiles.

AstenJohnson Press Fabrics, www.astenjohnson.com

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