In the pursuit of high-performance paper products, the selection of the appropriate sizing agent is critical. NINGBO INNO PHARMCHEM CO.,LTD. offers extensive expertise in this area, particularly concerning Alkyl Ketene Dimer (AKD) wax. This guide delves into why AKD has become a preferred choice over traditional sizing agents like rosin and even alternatives like Alkenyl Succinic Anhydride (ASA), providing paper mills with the knowledge to make informed decisions.

Traditionally, rosin sizing was the standard for imparting water resistance to paper. However, rosin-based sizing operates under acidic conditions, which can lead to paper degradation over time and increased corrosion in paper machines. This paved the way for alternatives that could function in the more desirable neutral to alkaline pH ranges. While ASA was an early improvement, offering better performance in neutral conditions than rosin, AKD wax presents a more robust and versatile solution.

Comparing AKD, ASA, and Rosin sizing agents reveals distinct advantages. AKD wax excels in its durability and excellent water resistance, even under demanding conditions. Its covalent bonding with cellulose fibers ensures a stable hydrophobic layer that resists hydrolysis, contributing to the paper's longevity and aging performance. Furthermore, AKD's compatibility with alkaline fillers, such as calcium carbonate, makes it an ideal choice for modern, cost-effective papermaking processes. This compatibility also translates to less foam and reduced machine corrosion compared to acidic sizing.

ASA, while effective in neutral sizing, is known for its instability in water, leading to a shorter shelf life and requiring careful handling. Rosin sizing, despite its historical prevalence, suffers from poor durability, susceptibility to degradation, and machinery corrosion issues due to its acidic nature. Therefore, for manufacturers aiming for high-quality paper with excellent printability, water resistance, and long-term stability, AKD wax, as supplied by NINGBO INNO PHARMCHEM CO.,LTD., stands out as the superior option.

NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing paper mills with access to cutting-edge sizing technologies. By understanding the comparative benefits of different sizing agents, paper producers can optimize their processes, enhance product quality, and achieve greater operational efficiency. The company's focus on AKD wax underscores its dedication to advancing sustainable and high-performance papermaking solutions.