A flat sheet material for manufacturing sheets for receiving information
has at least one coating applied onto a substrate. Particles that are
electrically activatable particles, magnetizable particles, or
electrically activatable and magnetizable particles are embedded in the
coating. By activation or magnetization of the particles when arranged in
an electrical or a magnetic field, information is writable, retrievable
and changeable on the sheet material. The at least one coating has fine
cavities that can be in the form of microcapsules containing dyes or
adhesives or fragrances.