Overlappingly overstrikeable ribbon and use thereof in continuou

Details Overlappingly overstrikeable ribbon and use thereof in continuou Overlappingly overstrikeable ribbon and use thereof in continuou

1988-07-29

1989-12-05

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Ribbon, per se

428207, 4283215, B41J 3100

Patent

active

048849081

ABSTRACT:
An overlappingly overstrikeable ribbon is described having a carrier film (2) and an ink-releasing coating (3) in the form of a plastic matrix applied thereto, which contains at least one fatty dye and/or oil-soluble dye and optional carbon black and/or other ink pigments, as well as further conventional additives. According to FIG. 1 the ink-releasing coating (3) can be subdivided into differently colored coatings (4a, 4b and 4c) representing the three primary colors and a black coating (4d) for producing color prints. The ink-releasing coating contains no fillers and contains a polyethoxylated fatty acid ester of a polyhydric alcohol as a solvent for the dye(s). This ribbon has advantages when used in continuously full cassettes which are more particularly used in matrix printing systems.

REFERENCES:
patent: 4251276 (1981-02-01), Ferree, Jr. et al.
patent: 4268368 (1981-05-01), Aviram et al.
patent: 4310258 (1982-01-01), Scott
patent: 4515489 (1985-05-01), Kohle et al.
patent: 4544292 (1985-10-01), Kohle et al.
patent: 4592945 (1986-06-01), Mecke et al.
patent: 4652486 (1987-03-01), Tasaka et al.
patent: 4675063 (1987-06-01), Mecke et al.
IBM Tech. Disc. Bulletin, "Lophine Dyes for Printing", Twieg, vol. 26, No. 6, Nov. 1983, p. 2915.

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