How to Fibrillate Recycled Fibers to Achieve up to 25% Additional Strength, TAPPICon22

This paper will focus on four recently awarded patents that concentrate on fractionating a subset of pulp to act as Glu-pulp®. This process centers on removing a subset of fibers, hyper-fractionating them and then disperses same back into the remaining pulp slurry. Think of the hyper-fractionated pulp as-a-means to engineer fibers under a tightly controlled refinement process. This enhances their ability to create a significant increase in bonding sites for the rest of the pulp slurry. Acting much like a strong chemical bonding agent, these hyper-fractionated fibers form a robust bond with nearby fibers to form increased bonding sites which in turn adds to increased strength properties in finished products. The system is comprised of a fiber measurement system that measures cellulosic fiber properties of the original fibers, refined fibers and additionally at least one fiber property from the group consisting of the lighter fractionation and heavier fractionation of fibers. Further, within this process, fractionated fibers are stored in a separate chest to be blended with the original portion to construct a recombined slurry for making a paper product. These fractionated fibers can be processed multiple times through the refiner until pre-defined properties and crill bonding area targets are achieved to create the desired pulp and finished product physicals. This paper will provide details of this process, end use results, and discussion of how best to utilize this technology to lower manufacturing costs including use of recycled fibers.

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