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: The pulp slurry is sprayed onto a moving wire mesh at high speeds (up to 90 km/h). Water drains through the mesh, leaving a mat of interwoven fibers known as a paper web .
: A film of chemicals or starch (wet sizing) is applied to the surface to stiffen the paper and prevent ink from "feathering".
: Trees of specific age and size—often eucalyptus, birch, or poplar—are felled using forest harvesters. 0gv49ix86qqp7uc5uffg3_source.mp4
: The paper travels through a series of steam-heated metal cylinders (at temperatures around 100-130°C) to achieve a dryness level of roughly 85%. 4. Finishing and Packaging
: Wood chips are boiled with water and chemicals in a "digester" to dissolve lignin , the natural glue that holds cellulose fibers together. : The pulp slurry is sprayed onto a
The production of paper from wood is a complex industrial process involving several key stages: raw material preparation, pulping, sheet formation, and finishing. Modern mills can produce as many as 55,000 sheets per minute. 1. Raw Material Collection and Preparation
: The web passes through heavy rollers (nip rollers) that squeeze out up to 50% of the remaining water content. : Trees of specific age and size—often eucalyptus,
: Pulp is often mixed with recycled paper fibers and water to create a dilute suspension called "furnish" (approximately 1% fiber to 99% water). 3. Forming the Paper Sheet