In the quest for high-quality paper, the choice of sizing agent is paramount. NINGBO INNO PHARMCHEM CO.,LTD. often guides clients through the selection process, and a common comparison point is Alkyl Ketene Dimer (AKD) versus traditional rosin sizing. While rosin has a long history, AKD offers distinct advantages that make it the preferred choice for modern paper mills focused on efficiency, environmental responsibility, and superior paper performance.

One of the most significant differences lies in the operating pH. Rosin sizing typically requires acidic conditions (pH 4.5-5.5), often achieved using aluminum sulfate (alum). This acidic environment can lead to increased corrosion of paper machinery and can negatively impact the longevity of the paper itself. In contrast, AKD excels in neutral to alkaline conditions (pH 7-9). This allows for less aggressive processing, reduced equipment wear, and better compatibility with alkaline fillers like calcium carbonate, which are commonly used in contemporary papermaking. The advantages of AKD in papermaking are strongly linked to this pH flexibility.

The environmental impact of AKD in paper production is also a key differentiator. The acidic nature of rosin sizing can contribute to more challenging wastewater treatment. AKD, being biodegradable and functioning in milder pH conditions, generally has a lower environmental footprint. NINGBO INNO PHARMCHEM CO.,LTD. is committed to offering greener chemical solutions, and AKD stands out as a prime example of this commitment. For paper mills aiming to improve their sustainability metrics, understanding the environmental benefits of AKD is crucial.

In terms of performance, AKD generally provides superior and more durable water resistance compared to rosin. It also contributes to better paper strength and improved printability. While the initial price of AKD might sometimes be higher than rosin, its effectiveness at lower dosages, improved machine runnability, and reduced corrosion often result in a lower total cost of ownership. NINGBO INNO PHARMCHEM CO.,LTD. offers competitive pricing for high-quality AKD, ensuring that these benefits are accessible.

When deciding where to purchase AKD, consider the long-term advantages it offers over traditional rosin. NINGBO INNO PHARMCHEM CO.,LTD. provides not only premium AKD products but also the technical expertise to help you optimize its application. By choosing AKD, modern paper mills can achieve higher quality paper, more efficient operations, and a more sustainable production process.