I. Introduction to AKD Wax Powder

AKD wax powder (Alkyl Ketene Dimer) is a mainstream neutral sizing agent for papermaking. It is a white waxy solid and shall be emulsified before application to provide water‑resistance for paper.

Core Principle: During paper drying, AKD bonds with paper fibers to form a hydrophobic layer, delivering stable and long‑lasting water‑repellent performance.

Main Advantages: Suitable for neutral papermaking, low equipment corrosion, improved paper brightness and printability, formaldehyde‑free, applicable for food‑contact packaging paper.

Typical Paper Grades: White cardboard, paper cup base paper, offset paper, packaging paper, etc.

Special Features: Paper gains better water‑resistance gradually after production (curing effect); prone to degradation under high temperature, store in cool place.

II. Latest Industry Updates

1. Wide replacement of traditional sizing agents: The papermaking industry largely adopts AKD neutral sizing instead of rosin‑based sizing for cost reduction, quality improvement and environmental benefits.

2. Rising high‑end demand: Growing consumption of food‑contact paper and e‑commerce packaging fuels strong demand for food‑grade and high‑purity AKD wax powder.

3. Technical upgrades: New fast‑curing and modified AKD mitigate defects including insufficient initial water resistance, surface slippage and web breaks on high‑speed paper machines.

4. Market trends: Domestic production capacity becomes concentrated with rising exports. Raw material price fluctuations affect quotations. High‑end special grades enjoy better profit margins while general‑purpose grades face fierce competition.

5. Common production issues: Hydrolysis failure at high temperature; excessive dosage causes paper surface slippage, impairing printing and rewinding processes.