Method for making etch-resistant stencil with dichromate-sensiti

Details Method for making etch-resistant stencil with dichromate-sensiti Method for making etch-resistant stencil with dichromate-sensiti

1977-02-28

1977-12-06

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

96 361, 961149, 156661, 156904, C23F 102

Patent

active

040615294

ABSTRACT:
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.

REFERENCES:
patent: 3011890 (1961-12-01), Gates et al.
patent: 3929532 (1975-12-01), Kuzminski

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