US PATENT SUBCLASS 430 / 390
.~.~.~ And dye

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

357  DF  COLOR IMAGING PROCESS {11}
374  DF  .~ Using identified radiation sensitive composition in the formation of color image {1}
375  DF  .~.~ Silver compound sensitizer {3}
390.~.~.~ And dye {2}
391  DF  .~.~.~.~> Forming multicolor image
392  DF  .~.~.~.~> And dye catalyst

DEFINITION

Classification: 430/390

And dye:

(under subclass 375) Processes involving use of a radiation sensitive silver compound composition containing a preformed dye before exposure such dye usually being of the azo, anthraquinone, indigo, phthalocyanine, etc., type and the process usually is the dye-bleach process.

SEE OR SEARCH THIS CLASS, SUBCLASS:

199+, for process involving dye to developers in diffusion transfer process.

376, 385, 387, and 389, for processes involving two-equivalent couplers containing a dye moiety attached to the coupling position.

559, for radiation sensitive compositions used in this process.