Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1995-07-07
1996-01-23
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 21A, 106 21C, 106 19B, C09D 1102, C09D 1300
Patent
active
054857929
ABSTRACT:
A latent image development system for producing a multicolor image on a substrate, includes in combination a substrate and dispenser. The substrate has a colorless or faintly colored latent multicolor image thereon, the latent image being formed by a plurality of different color former compositions, each including a Lewis base color former. The dispenser is adapted to development of the latent multicolor image on the substrate by marking thereover and reacting with a single color developer composition, the color developer composition being free of inorganic metallic salts and including a Lewis acid color developer operative for each of the color former compositions.
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Petitpierre, J. C., "Dyes And Chemicals For Carbonless Copying Paper: History, Present Situation, Problems And Trends," 1983 Coating Conference, pp. 157-164.
Biemeck Robert W.
Bousman W. James
Keyser Patrick J.
Klemanski Helene
Western Publishing Co., Inc.
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