Import Alkyl Ketene Dimer — Buy in Bulk from Supplier in China

Alkyl ketene dimer (AKD) from Founder Chemicals Co., Ltd. is a reactive sizing agent used principally in alkaline papermaking. The product presents as pale yellow waxy flakes at ambient temperature, with a typical melting point of 45 to 55 degrees Celsius, and functions by forming covalent beta-ketoester bonds with cellulose fibre hydroxyl groups. This reaction creates a hydrophobic surface that imparts water and oil resistance to finished paper and board. Founder Chemicals operates from Wuxi in Jiangsu province, China, and lists this material with flexible bulk supply arrangements.

The active content of commercial AKD wax typically ranges from 80 to 95 percent, with the remainder comprising stabilisers and processing aids to prevent premature hydrolysis during storage. Founder Chemicals supplies the material in flake form, a standard physical presentation that facilitates controlled melting and emulsification prior to addition at the paper machine wet end. The product is compatible with calcium carbonate filler systems, a key advantage over rosin-based sizing in modern alkaline papermaking environments. Stability of the emulsion and control of hydrolysis rate are critical quality parameters, as free ketene groups react rapidly with water to form unreactive ketone by-products.

Paper mills, packaging board producers, and specialty paper manufacturers constitute the primary buyers of AKD sizing. Applications include copy paper, liquid packaging board, food-contact grades, and label stock where controlled absorbency is required. Sizing levels are typically expressed as kilograms of AKD (100 percent basis) per tonne of finished paper, with dosage varying from 2 to 8 kg depending on the required Cobb value and end-use. Buyers sourcing from Founder Chemicals should confirm the active content percentage, emulsion compatibility, and whether technical support for mill trials is available. Transport packaging is typically in multi-ply paper sacks or drums with nitrogen purging to extend shelf life.

Founder Chemicals Co., Ltd. is located at 311 Guangnan Road, Wuxi 214000, Jiangsu Province, China. The supplier is classified under an imported tier with a harbor trust designation on the platform. The response rate is recorded at 0.00 percent with an average response time of zero hours, indicating that direct communication data is either absent or the supplier has not engaged through platform messaging channels. No verification of production capacity, workforce size, or annual revenue is stated in the available profile, and these figures should not be assumed.

The listing presents Founder Chemicals as offering AKD with flexible minimum order quantities and mentions FOB and CIF as available shipping terms, though exact quantities and unit pricing are not specified and must be confirmed directly. The product description emphasises compatibility with various paper grades and highlights water and oil resistance performance. Buyers should note that the profile does not list specific quality certifications, test reports, or third-party auditquisitions, and should request documentation of ISO compliance or paper industry certifications such as FDA or EU food-contact approval if required for their application.