Method for coating metallic strips
AssigneeGTE Sylvania Incorporated
InventorsLeadom A. Warner, Kenneth Shaner
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Abstract
There is disclosed a method for simultaneously applying a relatively thin coating of photosensitive material to both sides of a continuously moving horizontally aligned metallic strip wherein the strip is submerged within a tank assembly having the material therein. The strip is then withdrawn at a predetermined rate and in a substantially vertical direction from the tank assembly through a drying chamber having at least one pair of heater members positioned therein.
Claims3
A method for simultaneously applying a relatively thin coating of photosensitive material sensitized by a dichromate ion to both sides of a substantially horizontally aligned metallic strip for utilization in aperture masks for color television cathode ray tubes and for drying said material thereon, said method comprising:
- continuously supplying a moving substantially horizontally aligned metallic strip along a predetermined path;
- applying a relatively thin coating of photosensitive material to both sides of said metallic strip by substantially submerging said strip within a tank assembly having said photosensitive material therein;
- overflowing said tank assembly to continuously agitate the surface of said photosensitive material in the area immediately surrounding said metallic strip as said strip exits said tank assembly in a substantially vertical direction;
- withdrawing said metallic strip from said tank assembly at a predetermined rate in a substantially vertical direction;
- drying said photosensitive material on said strip;
- and
- accumulating said metallic strip after said photosensitive material has dried thereon.
Dependencies are inferred from the claim text.