Laminated thermal transfer medium for lift-off correction and em

Details Laminated thermal transfer medium for lift-off correction and em Laminated thermal transfer medium for lift-off correction and em

1982-06-15

1984-06-12

Wright, Jr., Ernest T.

Typewriting machines

Typing by other than type-face or type-die

Thermal

4002401, 4002411, 400696, 428913, 428914, B41J 320

Patent

active

044538391

ABSTRACT:
A thermal ribbon particularly suited to be used once for printing at one temperature and for lift-off correction at a lower temperature. The bottom, resistive layer is a blend of an aliphatic polyurethane and a urethane acrylic copolymer with conductive carbon black. The next layer is 1000 angstroms thick aluminum. The next layer is the release layer, of an ethylene organic acid copolymer, a low-melting material. The top layer is an ink layer containing ethylene vinyl acetate and polyethyacrylate. The resistive layer has a light dusting of graphite. Low print currents for both printing and lift-off correction are achieved.

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patent: 3539424 (1970-11-01), Tashlick
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patent: 4310258 (1982-01-01), Scott
patent: 4320170 (1982-03-01), Findlay
patent: 4384797 (1983-05-01), Anderson et al.
Xerox Disclosure Journal, "Self-Supporting Compliant Substrates for Ribbons", Quach, vol. 4, No. 5, Sep./Oct. 1979, p. 675.
IBM Technical Disclosure Bulletin, "Release--Adhesive Interlayers for Lift-off Correction," vol. 24, No. 5 (Oct. 1981), p. 2247 by Anderson et al.
IBM Technical Disclosure Bulletin, "Delayed Tack Ribbon for Laser Transfer and Other Printing," vol. 19, No. 2 (Jul. 1976), p. 672 by Bruce et al.

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