Image-recording materials

Details Image-recording materials Image-recording materials

C - Chemistry, Metallurgy

09

B

C09B 29/36 (2006.01) C09B 29/00 (2006.01) G03C 8/10 (2006.01)

Patent

CA 2237981

There are described image-recording materials which include an image dye- providing compound comprising a novel naphthol azo cyan dye having a 3- aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety. Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image- receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.

L'invention concerne des matériaux permettant d'enregistrer des images, qui comprennent un composé générateur de colorants d'image contenant un nouveau colorant azo cyano naphtol avec un fragment 3-aminobenzo-isothiazole. Le composé générateur de colorants d'image contient un fragment de contrôle de la diffusion, tel qu'un groupe révélateur hydroquinonyle, un de ses précurseurs ou un fragment thiazolidine, et il peut être diffusible ou non diffusible en fonction du fragment de contrôle de la diffusion. Les matériaux de l'invention, notamment ceux contenant des révélateurs à fort potentiel, tels que l'aminoréductone, donnent un chromophore cyan suffisant pour diffuser jusqu'à la couche réceptrice d'image, ce qui donne une photographie acceptable et ne provoque pas de diminution notable du fragment 3-aminobenzo-isothiazole du nouveau composé azo cyano naphtol.

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