Multi-carbon material for producing type

Details Multi-carbon material for producing type Multi-carbon material for producing type

B - Operations, Transporting

41

J

117/14

B41J 31/00 (2006.01) B41M 5/10 (2006.01)

Patent

CA 1168931

ABSTRACT A multi-carbon material as used, for typewriter ribbons, printing blankets or carbon paper for producing type is provided. The material consists of a backing foil upon which is applied a colour releasing coating in the form of a matrix of synthetic material having dispersed therein an oil based colouring substance containing dyestuffs, pigments or mixtures thereof. The oil base for the colouring substance is a surfactant containing a polyoxy- ethylene group. The surfactant is also a plasticizer for the matrix of the synthetic-material bonding agent. The colour releasing coating contains finely divided fillers having a high specific surface and a particle size of 0.2 to 20 µm. The material of the present invention exhibits substantially increased colouring power.

402547

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