Chemically reactive recording medium

Details Chemically reactive recording medium Chemically reactive recording medium

B - Operations, Transporting

41

L

42/10

B41L 1/36 (2006.01) B41J 31/06 (2006.01) C09D 11/00 (2006.01)

Patent

CA 1113243

ABSTRACT OF THE DISCLOSURE A ribbon, adapted for use on an impact printer, is provided wherein the ribbon is impregnated with a first sub- stantially colorless substance which acts as a color-former when reacted with a second substantially colorless substance acting as a color-developer, present on a portion of a sub- strate. Upon the transfer of the color-former from the ribbon to the substrate by impact, a colored image will form on those area of the substrate which are coated or impregnated with the color-developer. Images may thus be selectively transferred to an interior ply of a multi-ply business forms assembly by the conventional transfer methods without appearing on the exterior, impact receiving ply of such an assembly.

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