The interaction of opposite ions initiates the cross-linking process.

When an ionic polymer interacts with another of opposite charge, crosslinking begins. This phenomenon involves the production of spherical hydrogels characterized by hydrophilic and lipophilic components that can be efficiently trapped.

In house: BUCHI Encapsulator B-390.

The advantages:

  • efficiency and speed of the process
  • compatibility with heat-sensitive products
  • wide range of applications and uses
  • adaptability to mass production


  • beads with a size between 20-1000 um, payload up to 70-80%