Papermaking: Transforming wood into paper
Every sheet of paper begins as wood, but not all wood fibers are created equal. Papermakers carefully select hardwoods and softwoods based on the characteristics they want the finished sheet to have. Softwood fibers are long and strong, providing durability and tear resistance, while hardwood fibers are shorter and finer, contributing to smoothness, formation and print quality. The goal isn’t simply to make paper—it’s to engineer the right fiber blend for the job.
The first step is separating cellulose fibers from lignin, the natural substance that binds wood together. Through a series of mechanical and chemical processes, those fibers become pulp—the essential building block of every sheet of paper. From this point forward, every decision about how those fibers are treated will influence the paper’s strength, appearance, printability and performance.
Papermaking: Transforming wood into paper
Follow the papermaking process from pulp to finished paper, as fibers are transformed into a precision-engineered product, tested for quality, and prepared for shipment to customers.
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Starting with the perfect pulp
Before paper can be formed, the pulp must be transformed into a carefully controlled mixture known as the furnish. During furnish preparation, fibers from different sources are blended together to achieve consistent quality and performance. Every batch is engineered to deliver predictable results on the paper machine.
At this stage, papermakers begin tailoring the sheet for its final application. The furnish becomes much more than suspended fibers—it becomes the recipe for the finished paper, balancing strength, appearance, runnability and printing performance before the sheet is ever formed.
Furnish preparation
Preparing the furnish involves cleaning, screening and blending fibers while maintaining precise control over consistency and fiber distribution. Even slight variations can affect formation, machine performance and the appearance of the finished paper, so careful process control is essential throughout production.
Modern mills continuously monitor the furnish to ensure every sheet meets demanding quality standards. Consistency at this stage allows papermakers to produce millions of square feet of paper with remarkably uniform performance from beginning to end.
Fillers and additives
Although fiber is the primary ingredient, small amounts of fillers and additives dramatically influence how paper performs. Minerals such as clay and calcium carbonate improve brightness, opacity, smoothness and print quality, while specialized chemicals help control drainage, retention, color, wet strength and ink absorption.
These ingredients represent only a small percentage of the sheet, but they play an outsized role in determining how paper feels, prints, folds and converts. Like seasoning in a recipe, a little can make a significant difference.
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Forestry for the future.
Todd Proctor, Fiber Supply Manager at our Quinnesec Mill in Michigan, talks with pride and passion about modern forestry at Billerud.