Halftone printing method

Details Halftone printing method Halftone printing method

1977-05-11

1979-03-06

Coughenour, Clyde I.

Printing

Special article machines

Rotating object

101211, B41M 120, B41F 1728

Patent

active

041424620

ABSTRACT:
Distortion, smearing, and/or slurring are reduced in printing halftone images using printing apparatus with cylindrical printing surfaces by forming the image to be printed as a plurality of toned lines substantially perpendicular to the ink transfer nips in the printing apparatus. The invention is particularly suited to printing halftone images on rough or irregular substrates and on substrates, such as the outer side surfaces of truncated conical containers, which are not of uniform conformity with the cylindrical printing surface.

REFERENCES:
patent: 714953 (1902-12-01), Rudometoff
patent: 930689 (1909-08-01), Rheinberg
patent: 3195451 (1965-07-01), Hovekamp et al.
patent: 3381612 (1968-05-01), Lecha
patent: 3398678 (1968-08-01), Usko
patent: 3948171 (1976-04-01), O'Connell
patent: 3977318 (1976-08-01), Cohan

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