Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1979-02-22
1981-04-28
Lucas, Jay P.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
3461351, G03G 15048, G01D 1508
Patent
active
042649137
ABSTRACT:
A method for performing electric discharge recording on the recording surface of an electric discharge recording material using a discharge recording stylus comprises interposing an electrically anisotropic non-recording layer between the recording surface and the discharge recording stylus. The non-recording layer is prepared by dispersing a metal powder in a resin matrix and has a surface resistance of at least 10.sup.8 ohms and a volume resistance of not more than 10.sup.4 ohms-cm. Electric discharge recording is performed through the non-recording layer. A composite discharge recording material comprises (a) an electric discharge-breakable semiconductive resin layer having a surface resistance of 10.sup.5 to 10.sup.16 ohms and a volume resistance of 10.sup.3 to 10.sup.14 ohms-cm, (b) a metal-containing resin layer having a surface resistance of at least 10.sup.8 ohms and a volume resistance of not more than 10.sup.4 ohms-cm, which is laminated on one surface of the semiconductive resin layer (a) and is prepared by dispersing a metal powder in a resin matrix and (c) a conductive layer laminated on the other surface of the semiconductive resin layer (a) and having a surface resistance of not more than 10.sup.4 ohms and a volume resistance of not than 10.sup.2 ohms-cm.
REFERENCES:
patent: 2555321 (1951-06-01), Dalton
patent: 2940941 (1960-06-01), Dalton
patent: 4082902 (1978-04-01), Suzuki
Koike Masaru
Nakano Shiro
Lucas Jay P.
Sekisui Kagaku Kogyo Kabushiki Kaisha
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