I. Papermaking Applications

Dicyandiamide is mainly used to synthesize dicyandiamide‑formaldehyde resin, a common chemical auxiliary for papermaking:Wet‑strength agent: Improve the wet strength of toilet paper and packaging paper.Retention and drainage aid: Reduce the loss of fibers and fillers, and improve paper machine efficiency.Wastewater decolorization and flocculation: Widely applied to reduce COD and remove color in papermaking wastewater.

Disadvantage: It contains formaldehyde. Restricted by global environmental protection and new regulations for food‑contact paper, it is being gradually replaced by formaldehyde‑free products.

II. Latest International News (2025‑2026)

Global production capacity concentrated in China: China accounts for most of the global industrial‑grade dicyandiamide supply; Europe, America and Japan mostly rely on imports.Downgraded papermaking application: Europe, America and Southeast Asia impose strict controls on formaldehyde in food‑contact packaging paper, leading to continuous decline in consumption of traditional dicyandiamide‑based wet‑strength agents.Wastewater treatment becomes the main market: Steadily growing demand for decolorization of papermaking wastewater has become the major overseas export growth driver.Industry transition: Chemical enterprises in multiple countries are accelerating the promotion of formaldehyde‑free environmentally‑friendly auxiliaries to gradually replace dicyandiamide‑based resins.