What is the impact of akd sizing promoter on the folding endurance of paper?

May 26, 2025

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Hey there, fellow paper enthusiasts! As a supplier of AKD sizing promoter, I've been getting a lot of questions lately about its impact on the folding endurance of paper. So, I thought I'd take a deep dive into this topic and share some insights with you.

First off, let's talk about what AKD sizing promoter is. AKD, or alkyl ketene dimer, is a commonly used internal sizing agent in the papermaking industry. It helps to make paper more resistant to water and other liquids by forming a hydrophobic layer on the paper fibers. But here's the thing - AKD on its own doesn't always work as effectively as we'd like. That's where the AKD sizing promoter comes in.

The AKD sizing promoter is designed to enhance the performance of AKD. It helps the AKD to better attach to the paper fibers, which in turn improves the sizing efficiency. You can learn more about our AKD Sizing Promoter on our website.

Now, let's get to the main question: what's the impact of AKD sizing promoter on the folding endurance of paper? Folding endurance is a crucial property of paper, especially for applications where the paper needs to be folded multiple times without tearing or breaking. Think about things like brochures, envelopes, and packaging materials.

AKD Polymer EmulsifierAKD Sizing Promoter

One of the key ways that AKD sizing promoter affects folding endurance is through its influence on the paper's internal structure. When the AKD sizing promoter helps the AKD to form a more uniform and strong hydrophobic layer on the paper fibers, it also improves the overall integrity of the paper. This means that the paper is better able to withstand the stresses of folding.

For example, in a well - sized paper with the help of AKD sizing promoter, the fibers are held together more tightly. When you fold the paper, the forces are distributed more evenly across the fibers, reducing the likelihood of individual fibers breaking. This results in a paper with higher folding endurance.

Another aspect to consider is the interaction between the AKD sizing promoter and other additives in the papermaking process. In many cases, papermakers use a combination of additives to achieve the desired paper properties. Our AKD Polymer Emulsifier is often used in conjunction with the AKD sizing promoter. The emulsifier helps to disperse the AKD more evenly in the paper pulp, which further enhances the sizing effect and can also have a positive impact on folding endurance.

We also offer Dry and Wet Strength Agent for Papermaking. These strength agents work in harmony with the AKD sizing promoter. The dry strength agent can increase the overall strength of the paper in its dry state, while the wet strength agent helps the paper maintain its strength even when it comes into contact with moisture. This combined effect can significantly improve the folding endurance of the paper, whether it's used in dry or potentially moist environments.

In addition to the chemical interactions, the physical properties of the paper are also affected by the AKD sizing promoter. The hydrophobic layer formed by the AKD with the help of the promoter can change the surface characteristics of the paper. A smoother and more uniform surface can reduce friction during folding, which is beneficial for folding endurance.

Let's take a look at some real - world examples. In a recent study, a papermaking company was struggling with low folding endurance in their packaging paper. They decided to try our AKD sizing promoter. After incorporating it into their production process, they noticed a significant improvement in the folding endurance of the paper. The paper was able to withstand more folds without tearing, which was a huge win for their packaging applications.

However, it's important to note that the impact of AKD sizing promoter on folding endurance can vary depending on several factors. The type of pulp used, the papermaking process conditions (such as temperature, pH, and retention time), and the dosage of the AKD sizing promoter all play a role.

For instance, if the dosage of the AKD sizing promoter is too low, it may not be able to fully enhance the AKD's performance, resulting in a less effective sizing and potentially lower folding endurance. On the other hand, if the dosage is too high, it could lead to issues such as excessive foaming or uneven sizing, which can also have a negative impact on the paper's properties.

So, how can you optimize the use of AKD sizing promoter to improve folding endurance? First, it's essential to conduct thorough testing. Work with your papermaking team to determine the optimal dosage of the AKD sizing promoter for your specific pulp and process. You may also want to experiment with different combinations of additives to find the best formula for your needs.

In conclusion, the AKD sizing promoter can have a significant positive impact on the folding endurance of paper. By enhancing the sizing efficiency of AKD, improving the paper's internal structure, and interacting well with other additives, it helps to create a paper that can withstand multiple folds without breaking.

If you're in the papermaking industry and looking to improve the folding endurance of your paper products, I encourage you to consider our AKD sizing promoter. We have a team of experts who can work with you to find the best solution for your specific requirements. Don't hesitate to reach out to us for more information and to start a discussion about your procurement needs.

References

  • Some relevant research papers from the papermaking industry on sizing agents and paper properties.
  • Internal case studies from our company on the use of AKD sizing promoter in different papermaking processes.