Carbonless pressure-sensitive copying paper

Details Carbonless pressure-sensitive copying paper Carbonless pressure-sensitive copying paper

1997-04-23

1999-03-09

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified color-former

503215, 503220, 503221, 503225, B41M 5165

Patent

active

058800646

ABSTRACT:
A carbonless pressure-sensitive copying paper which uses a solvent free of an unpleasant odor and friendly to environments and is excellent in color formability and image keeping properties, the copying paper having a layer containing microcapsules enclosing a color former dissolved in a solvent, the solvent being a middle-length-chain triglyceride (MCT), the color former being an indolylazaphthalide compound or a fluoran compound having a trifluoromethylanilino group, the color former further containing a color former different in kind, the solvent further containing a specific fatty acid ester solvent in combination with the MCT, and the color developer being an inorganic color developer, preferably a simi-synthetic solid acid.

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