The papermaking industry relies on a precise blend of chemicals to transform pulp into high-quality paper products. NINGBO INNO PHARMCHEM CO.,LTD. highlights the significant contribution of Polyacrylamide (PAM), especially Cationic Polyacrylamide (CPAM), as a key additive in this sector. PAM's unique properties enhance several critical stages of the papermaking process, from pulp treatment to the final paper sheet formation.

In papermaking, the efficient retention of fine fibers and fillers is paramount to both product quality and cost-effectiveness. Unretained materials not only represent a loss of valuable resources but also contribute to effluent issues. CPAM acts as a powerful retention aid by bridging these fine particles and fibers. Its cationic charge allows it to adsorb onto the surfaces of negatively charged pulp fibers and mineral fillers, effectively binding them together. This significantly reduces the loss of fines and fillers through the screening and dewatering processes, thereby improving the overall yield of the papermaking process.

Beyond retention, CPAM also plays a crucial role in drainage. In the wet end of the paper machine, rapid water removal is essential for efficient operation and energy saving. CPAM aids drainage by aggregating fine particles and promoting the formation of a more open and porous fiber mat. This allows water to drain more freely, increasing the speed at which the paper machine can operate and reducing the energy required for drying the paper.

The use of CPAM in papermaking extends to enhancing the dry strength of the paper. By strengthening the bonds between cellulose fibers, CPAM contributes to increased tensile strength, burst strength, and fold endurance of the finished paper product. This is particularly important for applications requiring robust paper, such as packaging materials and printing paper.

Furthermore, CPAM is beneficial in the treatment of whitewater – the water recycled within the papermaking process. It helps to clarify whitewater by flocculating residual fibers and fillers, allowing for their reuse and reducing the load on wastewater treatment systems. This not only conserves water but also minimizes the discharge of pollutants into the environment.

NINGBO INNO PHARMCHEM CO.,LTD. provides specialized grades of PAM tailored for the papermaking industry. The selection of the appropriate PAM, considering factors like molecular weight and charge density, is crucial for achieving optimal results. Our expertise in polyacrylamide for paper making ensures that our clients receive solutions that boost productivity, improve product quality, and support sustainable manufacturing practices. By incorporating CPAM into their processes, paper manufacturers can achieve significant improvements in retention, drainage, dry strength, and whitewater clarity, ultimately leading to a more efficient and environmentally responsible operation.