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Weyerhaeuser Launches New Type of Kraft Pulp

Jan. 27, 2010 - Weyerhaeuser Company said that its Cellulose Fibers business segment has successfully introduced a new grade of Kraft pulp for specific segments of the cellulose derivatives market. Cellulose derivatives are used in various products, including lacquers, paints, inks, and thickening agents.

Known as Pearl®429, the new pulp offers tailored reactivity and viscosity compared with traditional Kraft pulps. As a result, Pearl429 can be blended with other pulps and has the potential to partially replace traditional chemical grade dissolving pulps for many chemical applications, Weyerhaeuser said.

Specifically, Pearl429 pulp’s characteristics allow it to be used in a variety of applications using cellulose esters and ethers, the company added.

“This is essentially a new class of softwood Kraft pulp,” said Don Atkinson, vice president of Marketing and New Product Development for Weyerhaeuser Cellulose Fibers.

Pearl429 is produced using a continuous Kraft process versus a batch process used to make many other specialty pulps, Weyerhaeuser said.

“This new grade of pulp provides the marketplace with a new option beyond traditional dissolving wood pulps and allows customers to optimize production conditions and product formulations,” Atkinson said.

SOURCE: Weyerhaeuser Company




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