Dyestuff applicator for screen printer

Details Dyestuff applicator for screen printer Dyestuff applicator for screen printer

1974-01-31

1976-07-20

Burr, Edgar S.

Printing

Stenciling

Rotary machines

101123, 101124, 118213, 118406, B41F 1540, B41F 1544

Patent

active

039699994

ABSTRACT:
A dyestuff applicator, located inside a cylindrical printing screen, comprises a horizontal tube which supports an axially extending dyestuff-distributing member immediately overlying the inner screen surface. The distributing member, or at least a membrane-shaped bottom thereof, is under pressure of the liquid dyestuff supplied to the tube at a superatmospheric pressure equivalent to a head of at least 1000 mm water. To insure full effectiveness of this pressure over the length of an outlet zone in the bottom of the distributing member, the body of liquid overlying that zone within the applicator should have a cross-section exceeding in at least one dimension 1.5% of the length of a flow path as measured from a point of entry of the dyestuff into the space containing that body of liquid.

REFERENCES:
patent: 2203910 (1940-06-01), Issartel et al.
patent: 2796846 (1957-06-01), Trist
patent: 2928340 (1960-03-01), Stein et al.
patent: 3381336 (1968-05-01), Wells
patent: 3553006 (1971-01-01), Beau et al.

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