Screen printing apparatus and process

Details Screen printing apparatus and process Screen printing apparatus and process

B - Operations, Transporting

41

F

101/50

B41F 15/00 (2006.01) B41F 15/42 (2006.01)

Patent

CA 1269887

SCREEN PRINTING APPARATUS AND PROCESS Abstract of the Disclosure A screen printing assembly attachable to a silk screen frame including a support frame positionable adjacent and attachable to the screen frame. A squeegee and flood bar assembly deposits and forces ink on and through the screen and onto a substrate disposed adjacent the screen. The assembly includes a mechanism movable along the support frame and the screen frame and a flexible sheet is attached to and moves with the mechanism. The flexible sheet is sealed to the support frame, and forms in part a sealed chamber in which the squeegee and flood bar assembly deposits the ink on the screen. Solvents can be sprayed into the sealed chamber which contains the solvent so that it does not escape into the atmosphere. An inert gas is injected into the chamber displacing the oxygen in it so that the ink does not dry out as rapidly, and safely maintaining the contained solvent. A method for screen printing using this sealed chamber.

465229

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