Fluorescent detection of flaws

Details Fluorescent detection of flaws Fluorescent detection of flaws

1979-09-18

1981-06-16

Edmundson, F.

Compositions

Organic luminescent material containing compositions

Inspection penetrant compositions

73104, G09K 1106, G01N 1908

Patent

active

042736714

ABSTRACT:
In a method for detecting flaws in the surface of a workpiece, initially microcapsules containing a fluorescent dye are deposited on the surface. After removal of excess microcapsules from the surface in order to reduce background fluorescence, the surface is visually inspected under ultraviolet light. The method overcomes many of the disadvantages of conventional inspection procedures, e.g., by eliminating use of emulsifiers and by materially shortening processing time.

REFERENCES:
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patent: 3904545 (1975-09-01), Molina
patent: 4002905 (1977-01-01), Molina
patent: 4115534 (1978-09-01), Ithakissios
patent: 4124484 (1978-11-01), Sherwin
Reprint from The NCR Factory News 10/59 p. 14-16 Pub. By Natl. Cash Register Co. Dayton, OH copy 252-62.53.

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