Thermal transfer ribbon especially for impressions on rough pape

Details Thermal transfer ribbon especially for impressions on rough pape Thermal transfer ribbon especially for impressions on rough pape

1987-10-15

1990-01-23

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Ribbon, per se

400120, 428195, 4283213, B41J 3100

Patent

active

048954659

ABSTRACT:
A thermocarbon ribbon is formed by emulsifying two mutually incompatible thermoplastic polymers melting at heat-transfer temperatures of a wax. The emulsion containing a pigment is applied to a ribbon support and the solvent is evaporated. The ribbon has multi-strike capabilities and improved sharpness of transfer to rough paper resulting from the presence in the solid continuous phase of beads or microspheres of a dispersed phase, both phases being formed by the polymers.

REFERENCES:
patent: 2739909 (1950-03-01), Rosenthal
patent: 4515489 (1985-05-01), Kohle et al.
patent: 4612243 (1986-09-01), Shimazaki et al.
patent: 4707707 (1987-11-01), Ohno
patent: 4774128 (1988-09-01), Kishiyuka et al.
patent: 4783360 (1988-11-01), Katayamo et al.
patent: 4784905 (1988-11-01), Suyuki et al.

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