Pressure-sensitive copying material

Details Pressure-sensitive copying material Pressure-sensitive copying material

B - Operations, Transporting

41

M

B41M 5/155 (2006.01) B41M 5/165 (2006.01)

Patent

CA 2126434

Pressure-sensitive copying material utilises a blend of rapid- and slow-developing chromogenic materials in vegetable oil solvent and an acid clay or synthetic inorganic colour developer. The surface pH of the colour developer is not more than 8.7, which gives rise to enhanced image intensity and fade resistance compared with the use of conventional higher colour developer surface pH values.

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