Flat Material Especially in the Form of a Sheet or a Strip and Device for Writing on Said Material

摘要

A flat sheet material for manufacturing leaf-like sheets for receiving information has at least one coating applied onto a first side of a substrate. Magnetically activatable particles are embedded in the at least one coating. The magnetically activatable particles have a grain size that is smaller than about 3 micrometers. The magnetically activatable particles are iron oxide arranged in a kaolin/SBR layer. A carbonless set can be made from the flat sheet material.