In modern papermaking production, process chemicals serve as the core auxiliary system to ensure the stable operation of the entire paper machine. Widely applied in the wet end, drying section and circulating water system, they effectively eliminate production obstacles, reduce paper defects and extend equipment service life, acting as essential materials for continuous and stable production. Faced with variable paper machine working conditions and raw material impurity problems, customized process chemical solutions have become a core necessity for global paper mills to stabilize product quality, reduce downtime and cut overall production costs.
Luterra Advanced Materials offers a complete portfolio of 11 professional papermaking process chemical models, fully covering all papermaking sections. These products precisely solve common industry pain points including foam disturbance, sticky deposits, microbial growth, equipment scaling, fabric blockage and abnormal dryer operation.
To address differentiated foam problems in various pulping and papermaking stages, three specialized defoamers are developed for diverse working conditions. PR-01A Polyether Defoamer features excellent compatibility and is suitable for continuous defoaming at the paper machine wet end. PR-01B Silicone Defoamer delivers outstanding high-temperature resistance and defoaming performance, ideal for high-temperature drying processes. PR-01C High Carbon Alcohol Defoamer leaves no residue and ensures high paper surface cleanliness, perfectly suited for the production of high-grade cultural paper and tissue paper. The three defoamer models achieve targeted foam control for different paper grades and processes to ensure smooth production.
PR-02 Stickies Control Agent efficiently disperses and passivates hot melt adhesives, waxes and various sticky residues in pulp, solving the common sticky contamination problem in recycled papermaking. It prevents sticky deposits from adhering to wires and felts, greatly reducing sticky-related paper defects and unplanned shutdowns for cleaning, thus improving the overall stability and efficiency of paper machines. PR-03 Biocide Deodorant specifically inhibits bacterial and mold growth and eliminates peculiar odors in white water circulation systems, purifying the circulating water environment and avoiding mildew and odor defects on finished paper to guarantee qualified sanitary quality.
For wet-end production, PR-04 Retention Aid significantly improves the retention rate of fine fibers and fillers, reducing raw material loss and white water turbidity. It stabilizes pulp concentration and paper basis weight, effectively controlling material consumption and cutting production costs. For daily maintenance of key paper machine fabrics, PR-05 Felt Washing Agent and PR-06 Dry Net Cleaning Agent thoroughly remove accumulated fillers, fiber dirt and sticky residues on felts and dry nets. They restore air permeability and water filtration performance, eliminate uneven water filtration and paper thickness deviation, and extend the service life of equipment accessories to reduce maintenance costs.
A series of specialized chemicals perfectly match the working conditions of the papermaking drying section. PR-07 Water-based Cylinder Release Agent and PR-08 Mineral Oil Release Agent adapt to different production scenarios, ensuring smooth paper peeling and preventing paper breakage. PR-09 Cylinder Adhesive Agent enables uniform paper adhesion on dryers for consistent drying effects. PR-10 Dryer Coating Modifying Agent optimizes the surface coating state of dryer cylinders to stabilize drying processes and final paper quality. Matched with PR-11 Circulating Water Scale Inhibiting Agent, it effectively prevents scaling and blockage in circulating water pipelines and equipment, ensures smooth water circulation, and avoids reduced heat exchange efficiency and unstable production caused by scaling.
With a full-coverage and professional process chemical system, Luterra provides one-stop auxiliary solutions for the full operation process of paper machines for global papermaking enterprises. Developed and optimized based on actual papermaking working conditions, all products deliver stable performance and strong adaptability. They help customers stabilize production quality, reduce unplanned downtime, lower comprehensive costs of equipment operation and production, and realize efficient, eco-friendly and standardized sustainable production.
