Method for making etch-resistant stencil with...

Details Method for making etch-resistant stencil with... Method for making etch-resistant stencil with...

C - Chemistry, Metallurgy

23

F

316/12, 96/217,

C23F 1/02 (2006.01) G03F 7/04 (2006.01) H01J 9/14 (2006.01)

Patent

CA 1103974

RCA 70,031 METHOD FOR MAKING ETCH-RESISTANT STENCIL WITH DICHROMATE-SENSITIZED CASEIN COATING ABSTRACT OF THE INVENTION The method comprises applying to a surface to be etched a coating of a liquid composition comprising an acid-precipitated casein, alkali dichromate photosensitizer, sodium borate and water. The layer is dried, photoexposed, developed and baked to produce an etch-resistant stencil.

297536

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