Thermographic transfer elements and methods

Details Thermographic transfer elements and methods Thermographic transfer elements and methods

1987-06-24

1989-05-09

Robinson, Ellis P.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156240, 427265, 428195, 428212, 428216, 428336, 428484, 4284884, 428520, 428522, 428913, 428914, B41M 526

Patent

active

048286389

ABSTRACT:
Transfer sheets and ribbons having a thin foundation carrying two superposed heat-transferable coatings. The base coating is cohesive, nonadhesive, substantially colorless and free of coloring matter and oil, and functions as a heat sink to insulate the top layer against excessive melting. The supercoating is more adhesive than the base coating, contains coloring matter and has excellent bonding properties for the base layer and also for receptive sheets including those having very smooth or glossy surfaces and relatively smooth closely-woven fabrics.
Heat-transferred images are strongly adhered to the receptive sheet and produce no visible loss of clarity or sharpness if smudged by contact since the portion of the images exposed to contact is free of coloring matter.

REFERENCES:
patent: 4581266 (1986-04-01), Magnotta
patent: 4585688 (1986-04-01), Nakamura et al.
patent: 4623580 (1986-11-01), Koshizuka et al.
patent: 4681796 (1987-07-01), Maehashi et al.
patent: 4774128 (1988-09-01), Koshizuka et al.

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