Abstract: In a device and method of removing particles from a surface of a web of material, a member is provided which is made from an electrically non-conducting material, and has an electrostatically chargeable and dischargeable surface. The surface is moved along a path to and from a particle removal area. In the particle removal area the member and the web of material interact which each other to transfer particles from the web of material to the charged member surface by electrostatic attraction. Upstream of the particle removal area, the member surface is electrostatically charged. Downstream of the particle removal area, a flow of air is generated over the member surface for removal of particles from the member surface, while electrically neutralizing the member surface and particles on the member surface. The member comprises a hollow member cylinder, having a chargeable and dischargeable outer surface movable along a circular path by rotating the member cylinder around an axis.

Abstract: In a device and method of removing particles from a surface of a web of material, a member is provided which is made from an electrically non-conducting material, and has an electrostatically chargeable and dischargeable surface. The surface is moved along a path to and from a particle removal area. In the particle removal area the member and the web of material interact which each other to transfer particles from the web of material to the charged member surface by electrostatic attraction. Upstream of the particle removal area, the member surface is electrostatically charged. Downstream of the particle removal area, a flow of air is generated over the member surface for removal of particles from the member surface, while electrically neutralizing the member surface and particles on the member surface. The member comprises a hollow member cylinder, having a chargeable and dischargeable outer surface movable along a circular path by rotating the member cylinder around an axis.