The preparation of Alkyl Ketene Dimer (AKD) emulsion is a critical stage in achieving effective paper sizing. As a specialized paper chemical manufacturer, we understand the intricate details involved in creating stable and efficient AKD emulsions. While traditional methods using starch have been common, the industry is increasingly adopting advanced polymer-based emulsifiers for their superior performance and ease of use. This article delves into the process from a manufacturer's perspective, highlighting the advantages of modern emulsifier technology.

The primary objective during AKD emulsion preparation is to disperse AKD wax into uniformly sized droplets (ideally below 1 micron) suspended in water, stabilized by an emulsifier. Historically, cationic starch has served this purpose. However, the process requires careful control of starch cooking parameters – temperature, time, and concentration – which can be challenging to maintain consistently. Variations in these parameters can lead to differences in starch hydration and molecular weight, directly influencing the final emulsion's stability, particle size distribution, and ultimately, its performance in sizing applications. For papermakers, sourcing reliable AKD emulsifier is key to mitigating these risks.

Modern AKD emulsifiers, particularly those based on cationic polymers, offer a more streamlined and controlled approach. From a manufacturer's standpoint, these polymers are synthesized under tightly controlled conditions to ensure consistent molecular weight and charge density. When these polymers are used as emulsifiers, they effectively interact with the AKD wax, creating a stable dispersion without the need for starch cooking. This eliminates a significant source of variability and operational complexity for the end-user. We are a trusted AKD emulsifier supplier that provides a product designed for ease of use and superior outcomes.

The process typically involves carefully heating the AKD wax to its melting point and then introducing it into a pre-prepared aqueous solution of the cationic polymer emulsifier. This mixture is then subjected to high-shear mechanical agitation, such as in a homogenizer. The high shear forces break down the molten AKD into fine droplets, while the cationic polymer coats and stabilizes these droplets, preventing them from coalescing. The resulting emulsion exhibits excellent stability, both during storage and throughout the papermaking process. This robust performance is what sets advanced emulsifiers apart, and it’s what we aim to deliver to our clients. If you wish to buy AKD starch based emulsifier, consider upgrading to our polymer-based solutions for better results.

The benefits of this approach are manifold: reduced production time, lower energy consumption, improved emulsion shelf life, and consistent, high-quality sizing performance in the final paper product. By choosing to work with a reputable manufacturer in China, papermakers can ensure a reliable supply of these advanced emulsifiers, backed by technical expertise. Our commitment is to provide innovative paper chemicals that empower our clients to achieve greater efficiency and product excellence. Explore our range of products and discover how our expertise in AKD emulsion preparation can benefit your operations.