Wiper blades for screen printing

Abstract

A wiper blade for a screen printing head in which pasty product to be screen printed is biased toward a printing screen under pressure, the wiper blade comprising an elongate blade element having a thickness of between 0.1 and 0.5 mm, one edge of the blade element being configured to be fixed to a screen printing head and the other edge of the blade element being a forwardly-directed free edge which in use contacts a printing screen, and a strip fixed to the upper, non-screen contacting surface of the blade element along the free edge there of, wherein the strip and the free edge of the blade element together define a leading face which has a height of from 1 to 2.5 mm and encloses an acute angle with the printing screen.

Dependencies are inferred from the claim text.