Ink ribbon having elastomeric protective backing

Details Ink ribbon having elastomeric protective backing Ink ribbon having elastomeric protective backing

1987-09-30

1989-12-12

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Ribbon, per se

400240, 4002404, 4002411, B41J 3112

Patent

active

048863866

ABSTRACT:
An overlappingly overstrikeable ink ribbon for matrix or needle printing systems is described having a carrier film and an ink-releasing coating, as well as optionally further conventional intermediate coatings. A rubber-elastic layer is formed on the needle impression side. A process for producing this ribbon is also described. This ribbon has many advantages compared with known ribbons. It protects the print head, withstands the needle pressure for a longer time due to the elastic layer and improves the printing definition. It can be produced by coextrusion of the starting materials of the carrier film and the rubber-elastic layer.

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IBM Technical Disclosure Bulletin, "Ribbon Support Film Coating", Findlay et al., vol. 15, No. 2, Jul. 1972, p. 368.
IBM Technical Disclosure Bulletin, "Ink Barrier For A Mulicolor Printer Ribbon", vol. 27, No. 3, Aug. 1984, p. 1824.
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Textbook of Polymer Science, Billmeyer, Jr., Published By Interscience, A Division of John Wiley and Sons, New York, London, Sydney, p. 567.

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