Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1993-06-04
1996-02-20
Reinhart, Mark J.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
3461351, G01D 1816
Patent
active
054933277
ABSTRACT:
Method and apparatus for producing image reproducing materials, especially newspaper printing plates or proofs having a predetermined image. A photothermographic material having a polymeric base supporting at least one photosensitive layer, capable of being developed by heat, is exposed to radiation at a first wavelength modulated in accordance with the predetermined image to produce a latent image representing the predetermined image in the photothermographic material. The photosensitive layer contains an antihalation colorant in an amount greater than 0.02 percent by weight. The antihalation colorant is active to radiation in the first wavelength and is transparent to radiation at a second wavelength. The photothermographic material is heated to develop the latent image in the photothermographic material. The image reproducing material is imaged with radiation at the second wavelength using the photothermographic material as a mask.
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Cotner Richard C.
McCallum William G.
Bauer William D.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Reinhart Mark J.
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