Method and device for pressure type stencil printing

Details Method and device for pressure type stencil printing Method and device for pressure type stencil printing

1995-08-14

1997-01-28

Funk, Stephen R.

Printing

Stenciling

Stencils

101115, 101126, 101129, B41F 1520

Patent

active

055969259

ABSTRACT:
Provided is a method and device for stencil printing which can readily achieve a stencil printing of a prescribed even density even when the surface area of the printing surface is great, and which can ensure a multi color printing to be made without mixing of colors even when a large number of copies are to be printed. Printing ink having a sufficient consistency to retain its shape is deposited on a stencil master plate S as ink lumps B, and a stencil master plate S is placed in a pressure chamber 17 with its surface carrying the ink lumps B facing the diaphragm 15, the pressure chamber 17 having a wall portion formed by a diaphragm 15 which is at least either flexible or elastic. The pressure chamber 17 is then depressurized so that the diaphragm 15 conforms to the ink lumps B and wraps itself onto the ink lumps B, and the stencil master plate S in turn comes into close contact with the printing paper P by being pressed by the diaphragm 15 to thereby achieve a stencil printing on a sheet of printing paper through pressurization of the ink lumps B on the stencil master plate S.

REFERENCES:
patent: 3172358 (1965-03-01), Weiss
patent: 3221648 (1965-12-01), Weiss
patent: 3372638 (1968-03-01), Tripp
patent: 3418926 (1968-12-01), Hakogi
patent: 3871293 (1975-03-01), Valiela
patent: 3964385 (1976-06-01), Knight
patent: 4098184 (1978-07-01), Okada et al.
patent: 4519760 (1985-04-01), Norell
patent: 4843961 (1989-07-01), Smith
patent: 5050498 (1991-09-01), Smith

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