Stock preparation is the process of converting raw materials—such as virgin pulp, recycled fibers, or various grades of waste paper—into a uniform, clean, and well-refined pulp suitable for papermaking. The system typically includes pulping, screening, cleaning, deflaking, refining, and storage. Each stage is designed to remove impurities, improve fiber quality, and optimize the pulp properties to meet the requirements of the final paper grade.
A well-designed stock preparation line ensures stable fiber consistency, improved sheet formation, energy-efficient operation, and high-quality end products. It also provides flexibility for different raw materials and production capacities.