Method and apparatus for transferring ink in gravure printing

Details Method and apparatus for transferring ink in gravure printing Method and apparatus for transferring ink in gravure printing

1980-09-02

1987-10-06

Fisher, J. Reed

Printing

Intaglio

Processes

101153, B41F 900

Patent

active

046975144

ABSTRACT:
In a gravure printing with liquid ink upon a dielectric surface of a substrate such as paper, transfer to the substrate of a gravure ink having a conductivity of the order of about 5.times.10.sup.-6 mho/cm. is improved by creating, at the nip between the gravure cylinder and its impression roll, in the ink in the gravure cells at that nip, a charge whose intensity is sufficient under action by the field to overcome the surface tension forces that normally form a concave meniscus on the ink in those cells so that a portion of the surface of the ink in such cells bulges above the surface of the gravure cylinder and wets the surface of the substrate in contact with the gravure cylinder at that point.

REFERENCES:
patent: 2520504 (1950-08-01), Hooper
patent: 2558900 (1951-07-01), Hooper
patent: 2558901 (1951-07-01), Hooper
patent: 2590321 (1952-03-01), Huebner
patent: 2654315 (1953-10-01), Huebner
patent: 2691343 (1954-10-01), Huebner
patent: 2901374 (1959-08-01), Gundlach
patent: 3295441 (1967-01-01), Garner
"Electrostatic Transfer of Ink in Gravure Printing", R. H. Oppenheimer et al, Gravure Research Institute Newsletter, No. 14, pp. 11-12, Jul. 1966.
"Electrostatic Transfer of Ink in Gravure Printing", Burt zimmerman et al, Gravure Research Institute Report No. P-16, Project No. PG1-1, pp. 2-3, 19, 21, 22, Nov. 12, 1963.

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