Full name: Alkyl Ketene Dimer, short name AKD, core raw material for paper neutral sizing.

White / light yellow waxy solid, insoluble in water; melting point ranges 44~64℃ for different grades; prone to hydrolysis and deactivation under high temperature and strong alkali.

Active content ≥88%, iodine value 42~45, low acid value; activity determines sizing performance.

Melt and emulsify into emulsion to adsorb on fiber; chemically bond with cellulose after drying, long carbon chains form permanent hydrophobic layer.

Neutral sizing for offset paper, copy paper, paper cups, food packaging paper and specialty paper; minor usage as slip agent for coatings.

Advantages: neutral papermaking reduces equipment corrosion, long-lasting water resistance, low dosage.Disadvantages: emulsification required, easy deactivation at high temperature.

25kg woven bags, store in cool place below 35℃, moisture-proof and avoid light; shelf life 12 months under sealed condition.