Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1984-07-30
1986-06-03
Hess, Bruce H.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
400120, 4002411, 428207, 428336, 428484, 428913, 428914, B41M 526
Patent
active
045929459
ABSTRACT:
A thermocolor ribbon comprises a plastic support foil, a fusible color layer attached to one side of the plastic support foil and an organic coating layer covering the other side of the plastic support foil. The organic coating layer is composed of a nonfibrous, pressure-stable wax or waxlike substance. A process for making the thermocolor ribbon from a plastic support foil having a fusible color layer thereon comprises application of a solution containing an organic coating material to the side of the foil not having the fusible color layer bonded thereto, followed by solvent evaporation. Alternatively, the side of the support foil bearing the fusible color is brought into intimate contact with opposite side of the foil whereupon the latter is heated for a time sufficient for transport of material from the fusible color layer to the uncoated side of the foil to form the organic coating layer thereon.
REFERENCES:
patent: 1375866 (1921-04-01), Sulzer
patent: 2322367 (1943-06-01), Kjellstrand
patent: 3035936 (1962-05-01), Roulston
patent: 3131080 (1964-04-01), Russell
patent: 3628979 (1971-12-01), Newman et al.
patent: 3857720 (1974-12-01), Fellows
patent: 4320170 (1982-03-01), Findlay
patent: 4400100 (1983-08-01), Aviram et al.
patent: 4465389 (1984-08-01), Knirsch et al.
Krauter Heinrich
Kuchenreuther Wieland
Mecke Norbert
Dubno Herbert
Hess Bruce H.
Pelikan Aktiengesellschaft
Ross Karl F.
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