US PATENT SUBCLASS 430 / 237
.~.~.~.~ Using identified neutralization layer or ingredient or separate post transfer treatment of dye image

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

199  DF  TRANSFER PROCEDURE BETWEEN IMAGE AND IMAGE LAYER, IMAGE RECEIVING LAYERS, OR ELEMENT CONTAINING AN IMAGE RECEIVING LAYER OR AN INGREDIENT FOR FORMING AN IMAGE RECEIVING LAYER {3}
202  DF  .~ Diffusion transfer process, element, or identified image receiving layers therefor {8}
235  DF  .~.~ Dye image formation process {1}
236  DF  .~.~.~ Using silver salt sensitizer {4}
237.~.~.~.~ Using identified neutralization layer or ingredient or separate post transfer treatment of dye image

DEFINITION

Classification: 430/237

Using identified neutralization layer or ingredient or separate post transfer treatment of dye image:

(under subclass 236) Processes employing an identified neutralization layer or ingredient which adjusts the pH of a processing composition used in forming the dye image to a substantially more neutral pH or treating a formed dye image.