Imaging composition

Details Imaging composition Imaging composition

1976-07-02

1978-07-11

Edmundson, F.C.

Compositions

Magnetic

Flaw detection or magnetic clutch

252 6255, G01N 2700

Patent

active

041000889

ABSTRACT:
A composition responsive to magnetic fields and comprising a ferrofluid and metal flakes. The metal flakes align with the ferrofluid in response to magnetic lines of force and along the magnetic lines of force. Excellent contrast is provided between portions of the composition wherein the metal flakes are seen along edges or ends and portions of the composition wherein the broad surface area of the flakes are presented to view.

REFERENCES:
patent: 3597356 (1971-08-01), Diperstein et al.
patent: 3764540 (1973-10-01), Khalafalla et al.
patent: 3786346 (1974-01-01), Lorenzi
patent: 3981844 (1976-09-01), Romankiw

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