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Penford: Biopolymer additive strengthens paperboard

PenStrength, a high-performance cationic polymer from Penford Products, enhances the binding of pulp fibers to make recycled paperboard stronger, and allows manufacturers to produce premium-grade paperboard while reducing manufacturing costs.
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PenStrength, a high-performance cationic polymer from Penford Products, enhances the binding of pulp fibers to make recycled paperboard stronger, allowing manufacturers to produce premium-grade paperboard while reducing manufacturing costs. 

By using PenStrength, paperboard producers can reduce production costs by up to $10-40 per ton, according to the company. 

This cationic polymer, derived from natural and renewable resources, is currently being used by major producers of core and tube, recycled linerboard, and medium and boxboard.

A viable alternative to synthetics, PenStrength achieves high ring crush and STFI results, producing of premium grades.  Its use decreases cost by reducing basis weight without loss of strength and/or providing an ability to use less expensive fiber sources.  Using the biopolymer also increases production and process efficiency for more saleable tons, and conserves steam and electrical resources by reducing refining and improving drainage.  It also optimizes wet end chemistry to reduce additive costs

Penford has filed a patent application covering this novel product.

 

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