Patent ID: 6681691
Filing Date: 2004-01-27
Classification: B41C

Abstract:
A method of producing a screen-printing stencil having open areas and blocked areas for respectively passage and blocking of a printing medium, the method comprising:providing a receptor element comprising an image-receiving layer capable of receiving a first chemical agent in areas corresponding to the blocked areas of the stencil to be produced; applying the first chemical agent to the image-receiving layer of the receptor element in the said corresponding areas; applying a second, stencil-forming chemical agent to a screen printing screen, bringing the image-receiving layer of the receptor element into contact with the stencil-forming agent, to allow the first and second chemical agents to react to produce on the screen a stencil-forming layer having areas of lower solubility corresponding to the said blocked areas and areas of higher solubility in areas corresponding to the open stencil areas; removing any remaining unreacted part of the receptor element; and washing away the second chemical agent in the higher solubility areas, thereby to produce the screen-printing stencil.