Color developers for pressure-sensitive or heat- sensitive...

Details Color developers for pressure-sensitive or heat- sensitive... Color developers for pressure-sensitive or heat- sensitive...

B - Operations, Transporting

41

M

42/16

B41M 5/16 (1985.01) B41M 5/18 (1985.01) B41M 5/22 (1985.01)

Patent

CA 1261625

Abstract of the Disclosure A color developer for use in pressure-sensitive or heat-sensitive recording papers comprise N-monosubstituted sulfonamides which contain at least one electron-withdrawing group within five atoms of the amido group of the sulfonamide. The N-monosubstituted sulfonamide may be in the form of an N-substituted, N'-mono or di-substituted sulfamide, or a polyfunctional molecule containing such an N-monosubtituted sulfonamide as the functional or impeding group thereof. The maximum color developing potential if realized when these compounds are used in conjunction with a source of metal or metal compound.

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