CATIONAMYL
Modified starch ethers for wet-end retention and improved paper properties
CATIONAMYL is a range of cationic starches developed for paper-industry wet-end applications. Formulated to be activated with hot water, the range improves retention of starch, fibre and filler while supporting required strength and formation properties across containerboard and specialty paper processes.
Key benefits
- Improves retention of starch, fibre and filler in the wet end, reducing raw material losses.
- Enhances physical properties of paper and board by supporting dry strength and sheet integrity.
- Hot-water soluble, enabling reliable activation and consistent process dosing in wet-end systems.
CATIONAMYL variants are added in the wet passage to increase retention of starch, fibre and filler, which improves yield and reduces raw-material discharge to effluent.
Used in production of raw materials for cardboards and corrugated boards to optimise furnish retention and enhance mechanical properties required for converting and end-use.
Selected CATIONAMYL grades are used in processes that support cleaning and separation in mill wastewater systems by promoting agglomeration and easier removal of fines.
Did you know
Retention, charge balance and paper properties explained
Cationic starches like CATIONAMYL act primarily through electrostatic interaction: positively charged polymer chains neutralize anionic surfaces on fibers and fillers, promoting flocculation and anchor-point formation that increases retention. This charge-mediated mechanism supports higher filler loadings and improved dry strength without large changes to furnish rheology.
Because CATIONAMYL grades are ether-modified and hot-water soluble, they offer predictable activation and dosing in the wet end; selecting the correct grade and addition point ensures compatibility with retention aids and charge-management programs and minimises undesired flocculation or formation defects.