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Alkyl Ketene Dimer (AKD) is a synthetic chemical compound, typically presenting as a light yellow solid in bead, flake, or slice form. Its distinct properties include excellent solubility in organic solvents like ethanol, benzene, and chloroform, coupled with remarkable resistance to weak acids, weak bases, and various penetrants. This robust chemical stability makes it an ideal additive for demanding industrial applications. The production process involves the careful acylation and dehydrochlorination of higher fatty acids (C≥12), yielding a highly effective and consistent product.
The primary and most significant application of AKD lies in the paper and paperboard industry, where it functions as a crucial neutral sizing agent. Sizing is vital for controlling the penetration of liquids into paper, thereby improving its printability and overall performance. Unlike traditional acidic sizing agents such as rosin, AKD operates optimally in a neutral to slightly alkaline pH range (typically 7.5-8.5), which is not only more environmentally friendly but also allows for the incorporation of alkaline fillers like calcium carbonate, enhancing paper properties such as strength and whiteness.
The mechanism of AKD sizing involves a chemical reaction where AKD molecules form a hydrophobic layer on the paper's cellulose fibers. This layer effectively repels water and other liquids, preventing ink from bleeding or spreading. The benefits extend beyond water resistance to include improved print quality, superior ink holdout, increased paper strength—encompassing tensile strength, tear resistance, and folding endurance—enhanced dimensional stability, and prolonged resistance to aging and yellowing, ensuring the longevity and integrity of the paper product.
NINGBO INNO PHARMCHEM CO.,LTD. ensures the highest quality AKD, with typical specifications including an assay (purity) of 88.0% minimum, an iodine value of 45.0 minimum, and a melting point typically above 47°C. Each batch undergoes rigorous quality control, providing assurance of its performance and consistency.
Alkyl Ketene Dimer is typically supplied in 25kg bags, with options for customized packaging to meet diverse client requirements. For optimal preservation of its properties, AKD should be stored in a clean, well-ventilated environment, protected from moisture.
As a prominent manufacturer and supplier of Alkyl Ketene Dimer, NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing high-quality chemical solutions globally. We offer competitive price options for bulk purchase, ensuring excellent value without compromising on product integrity. Whether you are looking to buy AKD for paper sizing or other industrial applications, our team is ready to assist with detailed product information and quotations tailored to your specific needs. Partner with us for reliable supply and superior chemical products.
Manufacturing Facilities
Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
