Method for producing particles electrostatically

摘要

The invention refers to a method for forming particles or droplets of at least one substance comprising the steps of providing a foamed medium, which foamed medium comprises said substance, and forming particles or droplets of said substance at least partly by electrostatic processing. The use of foamed medium in electrostatic processing enables higher production speeds and increases the evenness of a coating layer formed by electrospinning or electrospraying the particles or droplets on a substrate.

主权项

1. A method for forming particles or droplets of at least one substance comprising the steps of;
i) providing a liquid or solid medium that comprises said substance, ii) foaming said medium by dispersing gas into said medium in an amount of 50-99% by volume of the total medium, iii) feeding foamed medium from step ii) to a feed section, iv) forming particles or droplets of said substance by electrospinning or electrospraying said medium from the feed section, and v) depositing the particles or droplets on a substrate or collector surface.