Metalized recording medium

Details Metalized recording medium Metalized recording medium

1981-04-01

1982-11-09

Griffin, Donald

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

G01D 1534

Patent

active

043587798

ABSTRACT:
To reduce adherence of particles to electrodes and improve the contrast of recording paper, particles of oversized pigments are including in a contrast lacquer or ink layer which have a diameter such that the oversized particles or grains extend out from the lacquer or contrast layer, that is, have a diameter which is greater than the thickness of the ink layer. Suitable particles are carbon black, and calcium carbonate, particularly if darkly colored, present in about 3%-by weight-of the wet content of the lacquer layer which, for example, is a layer of nitrocellulose with finely grained carbon black pigment therein, of a thickness in the order of 1 to 10 .mu.m; the additional oversized pigment granules will have a thickness in the order of about 2 to 20 .mu.m, preferably, on the average, about 5 .mu.m and embedded in lacquer layer of about 2 .mu.m thickness, over which a vapor deposited layer of aluminum of between 0.01 and 0.1 .mu.m is applied. A typical substrate is paper.

REFERENCES:
patent: 2662828 (1953-12-01), Dubusc
patent: 2941901 (1960-06-01), Prill et al.
patent: 3503855 (1970-03-01), Shor et al.
patent: 3516911 (1970-06-01), Hopps
patent: 3657721 (1972-04-01), Traub et al.
patent: 3786518 (1974-01-01), Atherton

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