Printing – Intaglio – Multicolor
Patent
1975-11-19
1976-08-17
Fisher, J. Reed
Printing
Intaglio
Multicolor
101163, 178 66R, 101170, B41M 110, B41F 336, H04N 122
Patent
active
039747670
ABSTRACT:
In a printing method usable for color printing as well as printing in black and white, a printing form is utilized, comprising a multiple of separate channels each terminating in an orifice in a surface, used as printing surface, which orifice is arranged to form a neutral screen pattern, i.e. a screen pattern which has no connection to the figuration of the intended prints. The printing form for printing by charging the channels with printing ink columns for each channel selected to correspond to the desired nuance of the corresponding point of an original to be reproduced. The ink is charged in amounts sufficient to be successively distributed in the form of a coating to the surface of a multiple, preferable the whole intended edition of the objects or copies to be produced. In printing, the object to be printed, for example a paper sheet, is pressed against the printing surface of the form and the ink columns are subjected to a pressure which will press them in to contact with the object leaving a coating on the same. This coating will correspond to the selected nuance of the ink in the different channels and every type of picture can be produced. The charging of the channels of the printing form is carried out automatically by means of an apparatus in which the original intended to be reproduced is optically scanned so that an electric signal is produced which is transmitted to an ink injection device provided to inject printing ink into the separate channels in the printing form to correspond to the original scanned. Prior to injection the ink is mixed to a nuance corresponding to the original by means of the signal which is provided to govern the injection device.
REFERENCES:
patent: 440750 (1890-11-01), Shinn
patent: 1092269 (1914-04-01), Kritter
patent: 2246729 (1941-06-01), Gutberlet
patent: 2247540 (1941-07-01), Yanes
patent: 3056384 (1962-10-01), Beale et al.
patent: 3175488 (1965-03-01), Tillett et al.
patent: 3790703 (1974-02-01), Carley
patent: 3798365 (1974-03-01), Browning
Multicolor Contact Printing by Electrophoretically Attracted Inks, D. A. Radousky, vol. 14, No. 2, July 1971, IBM Technical Disclosure Bulletin, pp. 516, 517.
Bengt Petersson New Products Investment AB
Fisher J. Reed
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