Flat material especially in the form of a sheet or a strip and device for writing on said material
OwnerWolfgang Bossertinventor
Life of this patent
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Abstract
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.
Claims14
A flat sheet material for manufacturing leaf-like sheets for receiving information, said sheet material comprising:
- at least one coating applied onto a first side of a substrate;
- magnetically activatable particles embedded in said at least one coating;
- wherein said magnetically activatable particles have a grain size that is smaller than about 3 micrometers;
- and
- wherein said magnetically activatable particles comprise iron oxide arranged in a kaolin/SBR layer.
A carbonless set for storing optically and magnetically recognizable data, said carbonless set comprising:
- a flat leaf-like sheet comprising at least one coating applied onto a first side of a substrate;
- magnetically activatable particles embedded in said at least one coating;
- wherein said magnetically activatable particles have a grain size that is smaller than about 3 micrometers;
- wherein said magnetically activatable particles comprise iron oxide arranged within a kaolin/SBR layer;
- and
- wherein information is writable, retrievable and changeable on said carbonless set when arranged in a magnetic field by magnetization of said magnetically activatable particles.
Dependencies are inferred from the claim text.