Ink ribbon for thermal transfer printer

Details Ink ribbon for thermal transfer printer Ink ribbon for thermal transfer printer

1991-12-19

1993-08-31

Ryan, Patrick J.

Stock material or miscellaneous articles

Composite

Of wax or waxy material

428195, 428200, 4284744, 428480, 428484, 428500, 428522, 428913, 428914, B32B 900

Patent

active

052407810

ABSTRACT:
An ink ribbon for thermal transfer printer comprising a foundation and a thermal transfer layer, said thermal transfer layer comprising a colored layer containing a wax-like substance as a main component of the vehicle thereof, and a thermoplastic adhesive layer having a film-forming property provided on the surface of the colored layer, said thermoplastic adhesive layer having a melt viscosity of 1.times.10.sup.4 to 5.times.10.sup.6 cP at a temperature by 40.degree. C. higher than the softening temperature of the adhesive layer, a softening temperature of 45.degree. to 90.degree. C., a solidifying temperature of 25.degree. to 65.degree. C. and a temperature difference of at least 10.degree. C. between said softening temperature and said solidifying temperature. The thermal transfer ink ribbon provides clear images not only on a smooth paper but also on a rough paper even in a high-speed printing or even on printers with different peeling conditions.

REFERENCES:
patent: 4840837 (1989-06-01), Tanaka et al.
patent: 4865901 (1989-09-01), Ohno et al.
60-165291 Hotsuta et al. Feb. 7, 1984 Patent Abstracts of Japan #M443 vol. 9 No. 333.

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